GEOLOGICAL SURVEY OF INDIA KOLKATA · GEOLOGICAL SURVEY OF INDIA KOLKATA Volume 47, No. 1&2...

GSI CHQ e-News Volume 47 No.1&2 January, 2016 to December, 2016

1

CENTRAL HEADQUARTERS

GEOLOGICAL SURVEY OF INDIA

KOLKATA

Volume 47, No. 1&2 (Combined)

January-December, 2016


2

Shri M. Raju, the Director General of Geological Survey of India,was born on 18

th August 1957 and completed his M. Sc. from Andhra University in 1979.

He joined GSI in Northern Region in December 1980 at Lucknow, where he worked on Bijawar Phosphorite Deposits in Lalitpur District of Uttar Pradesh. In January 1983, he was transferred to Dehradun Office of GSI, where he was associated with many water resource development and civil engineering projects in Alaknanda and Dhauliganga valleys in the Central Himalayas. In August 1986, he was transferred to Southern Region, Hyderabad, where he carried out geotechnical studies for construction of Srisailam Left Bank Underground Hydroelectric Project, involving huge excavations for construction of underground Powerhouse complex and the Pressure Tunnel system. This superlative effort brought him appreciation from both the consultants to the project, as well as, the funding agencies (World Bank & OECF Japan).

In 1992, he was promoted to the post of Geologist Senior, at Hyderabad. Subsequently, he was transferred to North-Eastern Region, Shillong in 1997. He was associated with landslide hazard zonation in parts of the NER, during which, he pioneered a novel method of rapid landslide hazard zonation by terrain analysis, using geocoded IRS imageries/toposheets to cover large areas for assessment of landslide hazard. In March 2000, he was transferred back to Southern Region, Hyderabad, where he served till 2009, before being transferred to CHQ, Kolkata in June 2009. Shri Raju, was promoted to the post of Superintending Geologist in July 2007, and to the post of Director in March 2009. At CHQ, he was posted in Planning and Monitoring Division till his promotion to the post of Deputy Director General in June 2013. As Deputy Director General, he was posted to Mission –IV and subsequently led activities as Head of Mission –IV till December 2014. After that on 1st January 2015, he was transferred as HOD, Eastern Region, Kolkata. In June 2015, he was elevated to the post of Additional Director General and continued to head the Eastern Region till November 2015. In September 2015 he was given additional charge of PSS at CHQ till his transfer to CHQ in November 2015. He continued as Additional Director General, Policy Support System at CHQ till the end of May, 2016. He has assumed officiating charge of Director General from 1st June 2016. His contributions include over 100 reports and about 70 papers in national and international journals. He had the opportunity to represent GSI at a seminar on Tsunami in Thailand in 2006. He was also a part of field teams to many Geotechnical investigations in neighbouring countries like Nepal (2006 & 2011), Bhutan (2008, 2010, 2011 & 2012) and Myanmar (2010), during his illustrious innings in GSI. He has authored about 150 reports besides several scientific papers published in various journals. He has been associated with various projects in the Himalayas (Uttarakhand and North Eastern Region) as well as in the shield area (Andhra Pradesh). Geotechnical studies carried out at Telugu Ganga Project Dam foundations, slope stability studies along Srisailam left branch canal and Telugu Ganga Project canal systems are some of other significant contributions. He was associated in geotechnical investigations of Vishnuprayag hydel scheme and many other river valley projects in Alaknanda and Dhauliganga valleys in the Central Himalayas. He was also associated in Engineering Geological investigations in neighbouring countries like Bhutan and Nepal. Sri Raju has worked out a novel methodology of landslide hazard zonation by using geocoded IRS imageries to meet the critical demand for study of landslides both at regional and at site specific level in the northeastern hilly terrain of the country.

The Leader of Geological Survey of India


3


4

The Curatorial Division, CHQ regularly maintains Siwalik Fossil Gallery, Invertebrate Fossil Gallery, Rock & Mineral Gallery are the three running galleries of GSIat the Indian Museum, Kolkata. Up-keep and maintenance of the placeholders& contents, models etc. of all the Galleries have been carried out continuously. This division also carriedout routine maintenance and up keeping ofMeteorite repository.Many dignitaries including Hon’ble Central Minister also visited the Meteorite Repository. Extended support for Virtual Museum in GSIOCBIS (Mission –III) during Photography work of 489 Specimens in the Meteorite Repository. Processed samples from meteorite specimens are provided to the Meteorite& Planetary Science Division, M-IV, CHQ for research work. The Earth & Meteorite Gallery in Indian Museum is under complete renovation process.

This Division has participated in the following Exhibitions during the period: Geoscience Week and GSI Foundation Day celebration

during 29 Feb – 4 March 2016 103

rd Indian Science Congress – POI Expo 2016, Mysore

during 3 – 7 January 2016 6

th Coal Summit and Expo 2016 at Pragati Maidan, New

Delhi during 5th

to 7th

Sept 2016, 29

th Conference of the India Institute of

Geomorphologists at Geography Dept. of University of Calcutta during 25

th to 26

th Nov 2016.

12th

Jatiya Sanhati Utsav – O - Bharat Mela, 2016 during 14

th to 18

th December 2016 at Sonarpur, 24 Pgs (S),

W.B. 29

th Industrial India Trade Fair 2016 at Milon Mela, Salt

Lake, Kolkata during 23rd

Dec 2016 to 1st

Jan 2017.

DG, GSI inaugurating Geoscience Week

during 29th

Feb – 4 March 2016. The DG, GSI and other dignitaries at the

Geoscience Week, 2016. The DG, GSI visiting the GSI Exhibition Pavilion at the 103

rd Indian Science Congress - Pride of

India Expo in Mysore,3 – 7 January 2016.

GSI Exhibition Pavilion at the 103rd

Indian Science Congress - Pride of India Expo held

in Mysore, 3-7 January 2016

Visitors at the GSIExhibition Pavilion at the 103

rd Indian Science Congress - Pride of India

Expo held in Mysore, 3-7 January 2016.

Training to the Graduate level students on Identification of common rock & mineral varieties in hand-specimen.

CURATORIAL DIVISION


5

Visitors interacting at the GSI Exhibition

Pavilion at the 103rd

Indian Science Congress - Pride of India Expo held in

Mysore, 3-7 January 2016.

The Secretary, Ministryis being welcomed at the GSI exhibition pavilion in 6

th Coal

Summit, 2016 at Pragati Maidan, New Delhi.

Interaction with the students at the Meteorite Repository on Geoscience week 2016 at CHQ,

Kolkata.

Students at the Central Petrology Lab, CHQ,

Kolkata on the occasion of Geoscience week 2016.

Hands on lecture on identification of rocks and minerals to the students on the occasion

of Geoscience week 2016 at CHQ, Kolkata.

Demonstration of exhibition displays to the school students on the occasion of Geoscience

week 2016 at CHQ, Kolkata.

Lecture with audio-visuals on contribution

of GSI in Antarctica Expeditions during Geoscience week 2016 at CHQ, Kolkata.

Felicitation of Ex-Officers of GSI on the occasion of Geoscience week 2016 at CHQ,

Kolkata.

GSI Galleries at the Indian Museum after renovation.

Graduate level Earth Science students from four colleges of Kolkata and adjoining areas in multiple batches were imparted in-house training pertains to “Identification of common rocks & minerals” as per their University course requirements by the officers of Curatorial Division. 1. 36 Students from Netaji Satabarshiki Mahavidyalaya on 1 & 2 March, 2016. 2. 43 Students from Amta Ramsaday College and 45 students from Women’s College Calcuttaon 3 March, 2016. 4. 13 Students of Dumdum Motijheel Rabindra Mahavidyalaya on 16 May, 2016.

Standard Rocks & Mineral sets are prepared and provided to the following Educational Institutions as teaching aid. 1. Banharishpur High School, Panchla, Howrah 2. Jadavpur University, Kolkata 3. Srirampur Bharati Bhaban High School, Burdwan 4. Sri Aurobindo Institute of Education, Salt Lake. Gallery Talk: Dr. S. Sen, Director, Curatorial has delivered the Gallery Talk on Siwalik Fossils organized by Indian Museum on 30-08-2016.


6

Dr. S. Sen, Director, Curatorial Division delivering inaugural Gallery Talk at the Siwalik

Gallery, Indian Museum on 30 August, 2016 which is an innovative initiative from Indian Museum Authority.

DG, GSI has approved the Detailed Project Report for setting up of National Geoscience Museum, Kolkata prepared by M/S Creative Museum Designer (CMD), a subsidiary company of National Council of Science Museum (NCSM), Ministry of Culture.

The concept note on proposed State Level Geoscience Museum at Gwalior, Madhya Pradesh has been submitted to the Ministry Mines. Follow-up actions on proposal for construction of Geopark & Museum at FTC Raipur Campus that was initiated on 2003 is under process.

Proposal from the NER, GSI, Shillong to declare the Arwah-Lumshynna and Mawasamai Caves, Meghalaya as Geoheritage Site has been processed.In response to the regular persuasions made, the Government of Andhra Pradesh has issuedthe Notification for conservation, protection and maintenance of Erra Matti Dibbalu Geoheritage Site – the dissected and stabilized Coastal Red Sediment Mounds located between Visakhapatnam and Bheemunipatnam, A.P. A proposal from SU: TN & P, SR, GSI for Civil & Electrical maintenance &upgradation work of National Fossil Wood Park, Tiruvakkarai, Villupuram District, Tamil Nadu is disposed of.

Chemical analysis isaninextricable part of the curriculum of geological science. Providing precise and accurate data of chemical analysis is the main function of the chemical laboratories. The Chemical Laboratory, GSI, Kolkata plays the pivotal role of setting ultimate synchronization amongst various Regional and State Laboratories for providing precise and accurate analytical data as demanded by the geologists for the fulfillment of flagship NGCM Programme,Mineral Investigations Marine projects, Fundamental and Multidisciplinary Geo-Science Research etc.The analysis of major minor and trace elements from ppm/ppb to percentage level are being carried out by sophisticated state-of-art instruments likeICP-MS, XRF, AAS (Flame/ GTA/ VGA), DMA-80, Fire-assay cum, ISE, etc. Chemical laboratory networking of Central Chemical Laboratory is a Pan India activity for better and integrated management of all the laboratories within GSI in day to day operation related to planning, programming, procuring of high-end equipment, budgeting, analytical output, manpower

usages etc. through close monitoring. It extends all kind of technical support to the Director General, GSI and Ministry of Mines. Being the Head Quarters of all the Laboratories, this division acts as the central provisioning agent for procurement of the sophisticated instruments for all chemical laboratories of GSI. During the period has received a total of 15457 samples. The number of samples brought forward from December 2015 is 7991. A total number of 11544 samples have been analyzed involving 108641 numbers of determinations. Central Chemical Laboratory (CCL), GSI, CHQ, Kolkata has been accreditated by National Accreditation Board for Testing and Calibration Laboratories, Government of India (ISO/IEC 17025:2005). A paper on “Quantitative determination of Au, Pt, and Pd in Soil and Stream Sediment samples by GF-AAS and ICP-MS” by

CENTRAL CHEMICAL LABORATORY:

R&D Work/ Paper Published:


7

S. Ray Choudhury, D. Chakraborty Dutta, A. Karmakar, A. Das* and Y. K. Shami has been accepted for publication in Atomic Spectroscopy. During this periodRs.2,06,457/-( Two laks Six Thousand Four Hundred and Fifty-Seven) only has been generated as internal resource generated 21872 nos. of samples from private agencies. 1. 10

th Orientation Course for Chemists (Batch-A) - Wet

Chemical & AAS Module - 12.01.2016 to 05.02.2016.

2. 10th

Orientation Course for Chemists (Batch-B) - ICPMS Module - 14.03.2016 to 01.04.2016. Hindi Activities: 1. Shri S.S. Patel, Sr. Chemist and Dr. Y. K. Shami, Dy. D. G. (Chem.) attended “All India Technical/Scientific Rajbhasha Seminar, GSI”, organized at Pune on May 13, 2016 and delivered a lecture on “Role of Chemical Division in NGCM Programme”. Praveen (Hindi Examination) Passed: 1. Shri. Kartick Karmokar, MTS Pragya (Hindi Examination) Passed: 1. Shri Chandan Saha, Sr. Chemist 2. Mrs. Diya Chakraborty Dutta, JTA (Chem.) 3. Shri Avijit Saha, Lab. Asstt.

Dr. Y. K. Shami, DDG (Chemistry) X-Ray Fluorescence Spectrometer (XRF)

Inductively Coupled Plasma Mass Spectrometer (ICPMS) Graphite Furnace Atomic Absorption Spectrophotometer

(GFAAS)

The process of acquiring a geotechnical vessel with shallow drilling capacity for Geological Survey of India was reinitiated in 2015 with the approval of the Ministry and accordingly

new Expression of Interest (EOI). Subsequently, Request for Proposal (RFP) was supplied to 15 shipyards and M/s. Triyards Marine Services Pvt. Ltd.

Internal Resource Generated:

Training-Orientation Course for Chemist at Central Chemical Laboratory (CCL), GSI, CHQ, Kolkata:

Geotechnical vessel (GTV) with shallow drilling capacity for GSI


8

The Geotechnical Vesselis aimedto cater the requirement of shallow drilling, up to 30m in water depths of 6 to 60m, within the Territorial limits of the country. The vessel will be utilized for delineation and evaluation of mineral deposits like construction sand, offshore placer minerals, carbonate sands

etc. Further it can be used to address demands from other private or Governmental agencies for specific geotechnical studies for offshore structures like ports, harbours, single buoy mooring system.

The Sub-bottom profiling was carried out across the bathymetry line in E–W transects. The survey area encompasses four distinct regions viz. continental shelf, slope, rise and abyssal plain (fig.1). A gradual thickening of sediments from ~5 m to 25 m is observed from outer shelf towards shelf break. Two distinct layers are observed in the echoprint in the shelf region characterised by strong reflection, one being the seabed and the other one being the probable carbonate platform, marks the boundary of the intervening sediments. Gravity core data obtained from the present cruise as well as from previous R.V. Samudra Manthan cruises are used to make sediment probes, these probes are incorporated in the echo-plot and thus used to validate sub-surface sedimentation pattern. These probe data suggest the presence of 2–3 m thick terrigenous sediments (mostly carbonate sand in shelf and clay near shelf-break region) in the top part of the sub-surface sediment, which gradually grades to impure and pure lime mud downwards. In the continental slope region, signal strength becomes moderate to very poor, probably due to signal loss in steep slopes.

Near upper continental slope, SB profiling suggests presence of 5-10 m thick pile of sediment, where sediment probe data also indicates presence of lime mud underneath a top clay layer. Data in middle and lower continental slope are very poor (where slope angle ≥ 40). Yet in certain areas of the lower continental slope - where slope stability is present, well developed sub-surface layers are observed, suggesting presence of thick sediment (up to 15 m thick). Gravity cores collected from these lower slope regions also shows the presence of lime mud layers. Figure 2shows the gravity probe imposed on the sub-bottom echoprint. Lime mud of approximately 3 m thickness are observed in these cores collected from shelf break (150-200 m water depth), upper continental slope and also from the stable platforms

observed in between the continental slope region (~1500 m water depth). In these regions lime mud layer is underlying the upper clay layer. Near the shelf break region, lime mud intersects the seabed and at places a very thin layer of ~2 cm clay layer is observed at the top. Whereas sediment core recovered from the lower continental slope region (~1500 m water depth) shows more than a single depositional history of limemud. Lime mud is found here in two layers separated by clay, probably indicating two episodes of depositional events. This type of alternate layers of clay & lime mud layering clearly suggests the transportation of lime mud from shelf regions at different phases. This might have formed in the shelf region and later got transported and deposited in the slope and rise regions. Dating of the limemud layers in the cores collected from deeper part of the area can shed light in this regard. In the outer shelf region a very different scenario is observed. Here in the shallower area (~ 80 m depth) calcareous sand is observed instead of limemud. This calcareous sand gradually grades into lime mud both laterally and vertically. The calcareous sand is found to be composed of white coloured ooids with shell fragments of pteropods and gastropods. A distinct concrete layer with ooids is observed at a depth of 2.5 to 3.0 m in a core (collected at a depth of ~80 m) below which again slightly compact calcareous sand is found which may be an indication of paleo beach environment which existed before the submergence of the area. This concrete layer might represent the last Glacial Maximum. The subbottom echo-prints and the past and present core data will help to delineate the true thickness of the limemud in the area. With the thus delineated thickness of limemud from the sub-bottom echoprint, the reserve of the lime mud can be obtained.

Limemud Investigation, off Gujarat Coast in Block III


9

Fig 1. Multibeam image of the area.

Fig 2. Sub-bottom image of a profile section along with sediment probe.

Fig 3. Microscopic images of sediment samples .

Fig 4. Images of lime mud in a gravity core.


10

GSI’s Information Technology(IT) vision achieved a milestone with OCBIS Enterprise Portal (beta version) going live on 18

thOctober, 2016, in the presence of Shri Balvinder Kumar,

Secretary to GoI, Ministry of Mines. The Portal is available to the users currently, with facilities, covering Bhukosh(the geoscientific data portal), Virtual Museum, Geophysical Data repository and transactional services such as Field Season Project Management Information System (FSPMIS), International Collaboration, Training and Human Resource Development System (THReds), Tenement Data Management System (TDMS) etc. to name a few. New services are gradually getting incorporated after their user-testing and acceptance cycle. The complete ranges of Portal services are likely to be available to users by April 2017. Mission IIIA officers with their Regional counterparts are on their toes to meet the challenging timeline for the OCBIS Project. Some of the achievements are as follows: A. Completion of New Data Centre at Dharitri Building,

Salt Lake, GSI, Kolkata with commissioning of infrastructure component.

The state-of-art Data Centre is housing:- Cisco Nexus Data Center Products for Network

Architecture HP Blade Server and HP Superdome-2 for Server

Architecture HP 3-Par 10400 Storage - capacity is 200 TB HP Data Protector for Back Up Sanovi Disaster Recovery Management for

replication between DC and DR Best of breed Non-IT devices with control-monitors

for the mechanical and electrical equipment such as ventilation, lighting, power systems, fire systems, and security systems.

The Data Centre is capable of catering to all users independent of any browser/devices. The Data Centre (DC) hosts all scientific and administrative applications and robust email solution with MS Exchange Suite and Skype for Business for Mail Messaging and IM.

B. Bhukosh, the integrated spatial data management portal service will facilitate the authorised users to visualise, query data, create maps and download. One can access a host of geoscientific data pertaining to Geological mapping, Geochemical mapping, Geophysical Mapping, Aerogeophysics, seismotectonics, Landslide, Geochronology and meteorites in the form of map services.

C. FSPMIS together with Laboratory management

System(LMS), Drilling Management Information System(DMIS), Vehicle management Information System(VMIS) and Smart Application are amongst the core applications open for usage.

One can directly formulate a programme in FSPMIS, propose analysis of samples in specific laboratories, assign drilling units and vehicles as per requirement from the GSI resource and monitor the activities over period of time. The Smart application hosted in a GPS aided mobile field device ‘toughpad’ has been configured to collect sample/observation data from the field in both online and offline mode. The field records can directly be uploaded to the Central repository for ready consultation by the Project team. The device is a very rugged one and can withstand dropping impact up to 5 feet, water and dust. It has long-life, user-replaceable battery and sunlight-readable, high-sensitivity 7-inch multi-touch screen. Device is loaded with Windows 8.1 professional operating system. D. Support services like, CGPBIS, Greivance, RTI, Legal,

Rajbhasha, Parliamentary questionare, are open for familiarisation and usage.

Elaborate training and Hands-on sessions are continuing in batches for each module for a smooth migration experience to the New OCBIS Portal. User can directly contact Helpdesk over IP phone 10013/14 or email – [email protected] to get support round the clock.

ONLINE COREBUSINESS INTEGRATED SYSTEM (OCBIS)

mailto:[email protected]


11

Bhukosh- the Geoscientific Portal.

Mobile Smart Client- ‘Toughpad’. Digitisation of maps.


12

Conservation and preservation of precious archival collections will be done by conventional and digital processes.“Contents” of selective newly added periodicals: Released Quarterly) and ESA i.e. Earth Science Abstracts (Selective Abstracts on Recent Geological Articles on other than Indian Geology: Released Quarterly) which will be brought out/circulated through GSI Portal.

For the year 2017 Special offer library services through e-library at Central Library and access to earth science journals to GSI officers through GSI portal. Fourteen titles of Science Direct journals have been subscribed by GSI for Online access on Static IP Addresses of 31 locations ofGSI. In addition other Earth Science Journals (103) are also activated on complimentary basis for the Year 2017.

SL.No. ISSN Name of Journals

1 0098-3004 Computers & Geosciences

2 0012-821X Earth and Planetary Science Letters

3 0013-7952 Engineering Geology

4 0016-7037 Geochimica et CosmochimicaActa

5 0169-555X Geomorphology

6 0926-9851 Journal of Applied Geophysics

7 0375-6742 Journal of Geochemical Exploration

8 0191-8141 Journal of Structural Geology

9 0031-0182 Palaeogeography, Palaeoclimatology, Palaeoecology

10 0301-9268 Precambrian Research

11 0033-5894 Quaternary Research

12 0584-8547 SpectrochimicaActa B

13 0039-9140 Talanta

14 0040-1951 Tectonophysics

Sl. No. ISSN No. Name of Journals

1 0273-1177 Advances in Space Research

2 0309-1708 Advances in Water Resources

3 1875-9637 Aeolian Research

4 0168-1923 Agricultural and Forest Meteorology

5 0378-3774 Agricultural Water Management

6 0753-3969 Annales de Paléontologie

7 2213-3054 Anthropocene

8 0169-1317 Applied Clay Science

9 0883-2927 Applied Geochemistry

10 1352-2310 Atmospheric Environment

11 0169-8095 Atmospheric Research

12 0341-8162 Catena

PUBLICATION DIVISION

Digital Archival of GSI Publications:

E-Library in the GSI:

ONLINE JOURNALS SUBSCRIBED FOR 2017

LIST OF COMPLIMENTARY ACCESS OF ONLINE JOURNALS 2017


13

13 0009-2541 Chemical Geology

14 0009-2819 Chemie der Erde / Geochemistry

15 0165-232X Cold Regions Science and Technology

16 1631-0713 ComptesRendus Geoscience

17 1631-0683 ComptesRendusPalevol

18 0010-4655 Computer Physics Communications

19 0266-352X Computers and Geotechnics

20 0278-4343 Continental Shelf Research

21 0195-6671 Cretaceous Research

22 1877-3435 Current Opinion in Environmental Sustainability

23 0967-0645 Deep-Sea Research Part II: Topical Studies in Oceanography

24 0967-0637 Deep-Sea Research Part I: Oceanographic Research Papers

25 1125-7865 Dendrochronologia

26 0377-0265 Dynamics of Atmospheres and Oceans

27 0012-821X Earth and Planetary Science Letters

28 0012-8252 Earth-Science Reviews

29 0141-0296 Engineering Structures

30 0272-7714 Estuarine Coastal and Shelf Science

31 0016-6995 Geobios

32 0016-7061 Geoderma

33 0266-1144 Geotextiles and Geomembranes

34 0375-6505 Geothermics

35 0921-8181 Global and Planetary Change

36 1342-937X Gondwana Research

37 0304-386X Hydrometallurgy

38 0019-1035 Icarus

39 0303-2434 International Journal of Applied Earth Observation and Geoinformation

40 0166-5162 International Journal of Coal Geology

41 2212-4209 International Journal of Disaster Risk Reduction

42 1750-5836 International Journal of Greenhouse Gas Control

43 0301-7516 International Journal of Mineral Processing

44 2095-2686 International Journal of Mining Science and Technology

45 1365-1609 International Journal of Rock Mechanics and Mining Sciences

46 1001-6279 International Journal of Sediment Research

47 0924-2716 ISPRS Journal of Photogrammetry and Remote Sensing

48 1617-1381 Journal for Nature Conservation

49 0021-8502 Journal of Aerosol Science

50 1464-343X Journal of African Earth Sciences

51 0140-1963 Journal of Arid Environments

52 1367-9120 Journal of Asian Earth Sciences

53 1364-6826 Journal of Atmospheric and Solar-Terrestrial Physics

54 0169-7722 Journal of Contaminant Hydrology

55 0264-3707 Journal of Geodynamics

56 0022-1694 Journal of Hydrology

57 0924-7963 Journal of Marine Systems

58 1875-5100 Journal of Natural Gas Science and Engineering

59 0920-4105 Journal of Petroleum Science and Engineering

60 0895-9811 Journal of South American Earth Sciences

61 0022-4898 Journal of Terramechanics


14

Sl. No. Region/CHQ Title of the Publications Month of Release

1. CHQ Indian Journal of Geosciences Vol. 69 No. 2 (April’15-June’15) February 2016

2. CHQ Publication of Annual Report of GSI for FS 2014-15, Records Vol. 149, Part-9 February 2016

62 2213-3976 Journal of Unconventional Oil and Gas Resources

63 0377-0273 Journal of Volcanology and Geothermal Research

64 0024-4937 Lithos

65 0264-8172 Marine and Petroleum Geology

66 0304-4203 Marine Chemistry

67 0141-1136 Marine Environmental Research

68 1874-7787 Marine Genomics

69 0025-3227 Marine Geology

70 0377-8398 Marine Micropaleontology

71 0025-326X Marine Pollution Bulletin

72 2211-1220 Methods in Oceanography

73 0892-6875 Minerals Engineering

74 0964-5691 Ocean & Coastal Management

75 1463-5003 Ocean Modelling

76 0169-1368 Ore Geology Reviews

77 0146-6380 Organic Geochemistry

78 1871-174X Palaeoworld

79 1876-3804 Petroleum Exploration & Development Online

80 1474-7065 Physics and Chemistry of the Earth Parts A, B & C

81 0031-9201 Physics of the Earth and Planetary Interiors

82 0032-0633 Planetary and Space Science

83 1873-9652 Polar Science

84 0016-7878 Proceedings of the Geologists Association

85 0079-6611 Progress in Oceanography

86 1871-1014 Quaternary Geochronology

87 1040-6182 Quaternary International

88 0277-3791 Quaternary Science Reviews

89 0034-4257 Remote Sensing of Environment

90 0301-4207 Resources Policy

91 0034-6667 Review of Palaeobotany and Palynology

92 0035-1598 Revue de Micropaléontologie

93 1068-7971 Russian Geology and Geophysics

94 0037-0738 Sedimentary Geology

95 0267-7261 Soil Dynamics and Earthquake Engineering

96 1752-9298 Space Research Today

97 2211-6753 Spatial Statistics

98 0169-5347 Trends in Ecology & Evolution

99 0886-7798 Tunnelling and Underground Space Technology Incorporating Trenchless Technology Research

100 2212-0955 Urban Climate

101 0956-053X Waste Management

102 0043-1354 Water Research

103 0165-2125 Wave Motion

During the period following priced publications are released:


15

3. CHQ Special Publication No. 98: Glaciological studies in a part of Antarctica during the last three decades.

February 2016

4. CHQ Publication of Extended Abstract of GSI, CHQ for FS 2014-15, Record Vol. 149, Part-2

April 2016

5. CHQ Indian Journal of Geosciences Vol. 69 No. 3-4 Combined-Special Marine issue.

June 2016

6. CHQ Brochure February 2016

7. CHQ Annual General Report, FS 2014-2015,Records Vol. 149, Part-1 July 2016

8. CHQ Indian Journal of Geosciences Vol. 70 No. 1, (January to March’2016) September 2016

9. CHQ Special Publication No. 108: Landslide Compendium of Southern parts of Western Ghats.

November 2016

10. CHQ Special Publication No. 107: Landslide Compendium of North-west Himalayas.

December 2016.


16

The National Spatial Data Infrastructure (NSDI) which ascribes enactment of metadata and interoperability standards in respect of spatial data collected by different agencies. Continuous interaction is carried out with the working group of the NSDI and to attend all the meeting held at New Delhi organised by NSDI, DST. The ASDS division transforms GSImetadata of unpublished reports and 50K maps in conformity with NSDI Standard version 2.0 and uploads on NSDI hosted India Geoportal. ASDS Division has actively involved in the preparation of Conceptual schema in Unified Modeling Language (UML) diagrams as prescribed by ISO1903 for the layers of 50K map such as lithology, geomorphology using open source software “Enterprise Architect”. XML

Schema definition file generated from UML diagrams are used in interoperability of the maps. Definitions of geologic processes for code list pertinent to the UML diagram for borehole and Geologic events are in progress. Metadata Catalogue Services is functioning on the open source software’s “GeoNetwork” as GSI agency portal. Data Content Standards in respect of Surface Geological Mapping theme as suggested by NSDI to make it Bureau of Indian Standards (BIS) complaint is submitted to NSDI for comments. National Data Registry initiative of National Spatial Data Infrastructure preparation of code list value for the Geological Supergroup, Group and Age under Surface Geological Mapping theme under progress.

During the period a total of 515 samples were scanned in X’Pert PRO XRD instrument and diffractograms recorded. 58 XRD analytical reports for 550 samples were finalised. 127 samples were analysed by simultaneous TG-DTA

technique.Commercial Activity:During the period 23 commercial samples were analysed for two firms that generated a revenue of Rs. 70,103/-.

Zinc content in silicate mineral phases has recently gained importance as indicator for base metal sulphidemineralization. Zinc usually occurs as trace element in silicates and is not analyzed routinely in EPMA analysis. Thus, the data on Zn content of natural feldspar are scarce.

ADVANCE SPTIAL SYSTEM DIVISION (M-III)

MINERAL PHYSICS DIVISION, KOLKATA

CENTRAL PETROLOGICAL DIVISION, KOLKATA

Experimental investigation on the stability and solid-solution behavior of Zn-feldspar [Ca(Zn,Si)Si2O8] and its implication as an indicator to hydrothermal zinc deposits.


17

Rothkopf and Fehr (1998) while working on the stability of Petedunnite (CaZnSi2O6), first reported a stable zinc-feldspar [Ca(Zn,Si)Si2O8] phaseat low pressure and temperature substituting for an assemblage of willemite, Hardystonite and quartz, which is in turn a breakdown product of Petedunnite (CaZnSi2O6). The following reaction has been established through experimental studies (Fehr and Huber, 2001): 4[Ca (Zn, Si) Si2 O8] = Willemite (Zn2 SiO4) + 2 Hardystonite (Ca2ZnSi2O7) + 7Quartz--------(1) Heuer et al. (1998) reported Zn-feldspar to crystallize with triclinic symmetry with 1/4

th of the tetrahedral sites occupied

by Zn and 3/4th

by Si. Since plagioclase also crystallizes with triclinic symmetry and the ionic radii of Zn (1.38 Å) is intermediate to that of Al and Si (1.43 and 1.32 Å respectively), it is thus expected that Zn

2+ should

preferentially enter into the tetrahedral (T) site on account of its smaller ionic radii. So a solid-solution relation might exist between plagioclase and Zn-feldspar. In nature, zinc-bearing potassium feldspar or ‘Paradoxites’ (0.15 – 0.18 wt % ZnO) have been reported by Weber (1992a, b) and Galilaeer (1967) in hydrothermal veins of gneisses and skarn. Mumba Chabu (1992) reported barian feldspar from the Kipushi Zn-Pb-Cu deposit, Shaba, Zaire to contain up to 0.18 wt% ZnO in them. The present study is aimed to generate new experimental data on the solid solution behavior of Zn-feldspar, to observe the extent of diffusion of Zn

2+ in feldspar structure under

hydrothermal conditions and also study its stability field up to 2 kbar. The proposed study might have immense importance to the zinc concentration in feldspar as an indicator to hydrothermal zinc deposits.

Industrial grade oxides of CaCO3, Al2O3, SiO2 and ZnO were used to prepare the synthetic starting material compositions Dried oxides were weighed in desired calculated proportions so as to acquire stoichiometric starting compositions. All the chemicals were mixed thoroughly in presence of acetone in agate mortar, then transferred to a clean platinum crucible and placed in molybdenum disilicide furnace at 1600°C for 5 hrs above the liquidus temperature of anorthite. The molten material was quenched rapidly in cold water to form glass. The fused glass was then crushed and put to crystallize in a silicon carbide furnace at 800-900°C for about 8-10 days. After a week the powder was observed under microscope to check for crystallization and used as starting composition. Four compositions have been prepared. The proportion of ZnO was progressively increased from compositions C1 to C4 with the objective to study the possible limited solid-solution behavior of ZnO in anorthite. The compositions C1, C2, C3 and C4 have 2.2, 5.4, 7.6 and 10.8 wt % ZnO respectively. Zinc-feldspar has also been synthesized in the laboratory as a crystal phase following the reaction (1) proposed by Fehr and Huber (2001) given above.The reaction was carried out at 850°C for 20 days and the run product was analyzed using XRD due to crystallization of nano sized crystals.Apart from the X-ray peaks of Hardystonite, Willemite and Quartz, peaks of a fourth phase (Zinc-feldspar) have been identified. The identification of Zinc-feldspar as the fourth phase has been based from the calculated d-values of Kraus and Nolze (1996) as given below due to absence of standard zinc-feldspar X-ray peak data.

Table 1: Comparison of the calculated and observed d-values:

Calculated d-values of zinc feldspar (after Kraus and Nolze, 1996)

Peak intensities (after Kraus and Nolze, 1996)

Observed d-values of zinc feldspar in the present study

Peak intensities in the present study

5.977 19 5.965 20

3.824 25 3.824 30

3.574 54 3.568 55

3.278 58 3.280 51

3.231 100 3.230 100

3.214 35 3.207 60

2.988 48 2.985 35

2.669 38 2.666 32

2.385 31 2.386 25


18

XRD analysis of the run product:

Experiments were carried out at 1 atmosphere and various temperatures using the 1st

two compositions C1 and C2. The

experiments and the results are tabulated in the table below:

Table-1: Experiments at 1 atmosphere and various temperatures:

Fig 1: All glass at 1400˚C for C1 Fig 2: All glass at 1400˚C for C2

Temperature Composition Experiment/Run No. Time Results

1400°C C1 E1 8 hrs All glass

C2 E2 8 hrs All glass

1300°C C1 E3 10 hrs Glass + cyrstals

C2 E4 10 hrs All glass

1200°C C1 E5 18 hrs Crystals + glass

C2 E6 18 hrs Glass + crystals

1100°C C1 E7 24 hrs All Crystal

C2 E8 24 hrs Crystals + very few glass

950°C C1 E9 2 days All Crystal

900°C C2 E10 2 days All Crystal


19

Fig 3: Crystals within glass for C1 at 1300°C Fig 4: All glass for C2 at 1300°C

Fig 5: Anorthite crystals for C1 at 1200°C Fig 6: Crystals with glass for C1 at 1200°C

Fig 7: Crystals with glass for C2 at 1200°C Fig 8: Quench crystals with glass for C2 at 1200°C

Crystal within glass Only Glass

Crystal within glass

Crystal

Glass

Glass

Crystal

Quench Crystal

Glass


20

It is observed under microscope that at 1400°C experiments with both the compositions from all glass indicating above liquidus temperature for both the compositions (Fig 1 & 2). However at 1300°C, experiment with C1 shows appearance of crystals with glass indicating the liquidus boundary for C1 to be between 1300°C and 1400°C (Fig 3) while for C2 existence of all glass even at 1300°C indicates the temperature to be still above liquidus (Fig 4). At 1200°C amount of crystals increases in C1 than at 1300°C. Occurrence of small crystals within glass at or near liquidus temperature indicate the 1

st

first phase to crystallize and an equilibrium crystallization condition (Fig 3 & 6). At 1200°C ratio of crystals to glass is higher in C1 than in C2 (Fig 5 & 7). Appearance of crystals with glass for C2 at 1200°C is indicative of the liquidus boundary for C2 to be between 1200°C and 1300°C (Fig 7 & 8) which is about 100°C lower than that of C1. Quench crystals in glass was observed at near liquidus temperatures (Fig 8) which are a characteristic feature of rapid cooling. Solidus is attained at 1100°C for composition C1 observed by

disappearance of glass and formation of only crystals; however for composition C2 solidus temperature is below 1100˚C as very few glass can still be observed under microscope at 1100°C. The temperature interval between solidus and liquidus for C1 and C2 in the predicted binary join is about 200°C as observed from the experimental results under microscope so far. It is interesting to observe from the above results that with increase in ZnO content in the starting compositions, both the liquidus and the solidus is progressively lowered which may be an indication of a partial or complete solid solution that needs to be verified by EPMA (Fig 9). Once such a solid solution is confirmed then XRD studies shall provide insight on the possible changes in the crystal structure of anorthite so as to incorporate ZnO in its structure. Further experiments with alkali feldspar and detailed EPMA analysis and XRD studies will provide insight on the extent of incorporation of Zn in feldspar structure and its significance as an indicator mineral to nearby zinc mineralization.

Fig 9: Graphical representation of experiments.

The present experimental studies have been carried out to check the dependence of formation of goethite and hematite from the amorphous ferric hydroxide at different temperature, pressure in presence of fluids of different pH. An attempt has been made to reproduce the natural assemblages and to address the frequently encountered association of goethite and hematite on surface.

For carrying out the experiments, ferric oxide gels were prepared by adding 9N ammonium hydroxide solution dropwise to solutions of 5g anhydrous ferric chloride in 250ml. water until the solution as measured by glass electrode, reached the desired pH. The gels were allowed to settle for two hours, filtered off on Buchner funnels and washed free from Cl-with distilled water. The bulk of each gel wash then re-suspended in distilled water and brought to initial pH value with NH4OH or HCL. During the first phase of the experiments, the suspensions at different pH starting from 5 to 10 were allowed to stand at room temperature for 15 days and 30 days respectively (Table-1).

Hydrothermal formation of Goethite and Hematite

from Amorphous ferric (III) hydroxide at different

temperature and pressure conditions in presence of

fluids of different pH.


21

Table-1: Hydrothermal experiments at different conditions. Temperature in °C pH

3 4 5 6 7 8 9 10 11 12

At Room Temperature(15 days) R-1 R-2 R-3 R-4 R-5 R-6

At Room Temperature(30 days) R-7 R-8 R-9 R-10 R-11 R-12

At 50°C(15 days) R-13 R-14 R-15 R-16 R-17 R-18 R-19 R-20 R-21 R-22

The gels prepared by adding ammonium hydroxide rapidly to ferric chloride solutions to various pH values are shown to consist of amorphous material and crystalline goethite; no other iron oxide was definitely identified in the present experiments. The goethite grows as crystals on aging at all pH values but the rate of growth is greater at higher pH values. The data indicate the predominance of goethite as a

crystalline in all phases of the gel. More time cause the primary particles to come together to form true crystals (Fig-2), which in the lower time period may be seen to consist of primary particles cemented together in a row (Fig-1) rather than true crystals. Longer period leads to the formation of true crystals [Mackenzie, R.C and Meldau, R. (1959)].

Fig-1:Crystal growth of goethite during lower time

Periodexperiments (15 days) Fig-2: Crystal growth of goethite during longer

period experiments (30 days)

The amount of goethite in the reaction products increases with increasing pH. Thus it is apparently concluded from the first phase of experiment that hydrothermal formation of goethite from amorphous iron (III) hydroxide is also pH dependent. Natural to weekly alkaline hydrothermal solutions in contact with the minerals are likely to deposit iron as goethite and the amount of goethite is likely increase with increasing pH

[Christensen, A. N. (1968)] and with time also.Doping of As (III) and As (V) in to hematite and goethite, since arsenic was reported to show sorption into hematite and goethite under different controlled parameters [Gimenez et. al. (2007) and Mamindy-Pajany et.al. (2009)], can help in exact delineation of sorption temperature and fluid controlled environments which will eventually help us to know exact nature and extent of arsenic contamination in the area close to iron ore deposits containing goethite and hematite.

Sample No. Na2O SiO2 MgO Al2O3 P2O5 K2O CaO TiO2 Cr2O3 FeO MnO NiO Total

R-4 0.13 0.31 0.12 0.02 0.03 0.01 0.18 0.00 0.02 69.98 0.25 0.04 71.09

R-5 0.1 0.26 0.03 0.03 0.03 0.01 0.13 0.01 0.03 80.27 0.22 0.04 81.16

R-6 0.04 0.36 0.06 0.05 0.03 0.01 0.24 0.02 0.04 82.14 0.34 0.04 83.39

Few chromiferous ultramafic units contain serpentinised olivine and talc which may represent primitive pulses of SLC

magma. Mineral chemistry of the chromites from the SLC indicate a Suprasubduction zone – Arc type environment for the SLC. The incidence of PGM is more common in the chromitites containing sulphide phases. EPMA analysis of the PGM indicate that they comprised of Braggite, sperrylite, Pt- Pd telluride and rarely PtAs phases. Mostly the PGM are

Petrogenesis of PGE mineralisation in mafic-

ultramafic suite of rocks of Sittampundi Layered

Complex (SLC), Tamil Nadu.


22

found to be of about 5 microns in size, however few grains of 10 micron size are recorded. Textural evidencesindicates that immiscible sulphide solutions along with PGE are precipitated in early magmatic stage.

The Archean Bastar craton lies south of the Narmada-Son-Lineament covering an area of approximately 2,15,000 km

2

and bounded between 17.5°N-23.5°N latitude and 77.8°E-84.1°E longitude. It is tectonically juxtaposed with the Satpura Mobile belt in the northwest, the Sausar Mobile Belt and the Central Indian Tectonic Zone in the north, Eastern Ghat Mobile Belt in the east; Godavari graben in the south, Dharwar Craton in SW and the Deccan Trap in the West (Fig.1). The Bastar Craton covers parts of Southern Orissa, South eastern Madhya Pradesh, and eastern and south-

eastern Maharashtra. It is one of the oldest nuclei around which the Indian Peninsula has grown (Radhakrishna and Naqvi, 1986). This craton comprises dominantly by granite-gneisses and supracrustal rocks (Archean and Proterozoic) of various ages overlain by metamorphosed intracratonic sedimentary basins of Proterozoic age (Crookshank, 1963; Ramachandra, 2004). 3.5 Ga Granite gneisses (Sarkar et. al., 1993) that occur as large outcrops are the most prominent and ubiquitous rock types of the craton and form the basement for the Precambrian metasedimentarysupracrustals. Gneisses also occur as enclaves within the granitoids of younger age in the southern Baster region. Granitoids plutons of varying dimensions occur as intrusive into the gneisses and into the metasupracrustals throughout the craton (Mondal et al., 2006). The Proterozoic Pakhal Supergroup, Gondwana sediments and Deccan traps occur to the west of the Bastar craton in central India.

Fig.: 1B- Map of India showing the location of Bastar craton; 2-Location and geological map of the study area (Minjhari), SU:

Maharashtra.

Fig.:1A-Geological Map (GSI) of Bastar Craton showing the approximate study area (not to scale); 1B- Map of India showing the

location of Bastar craton; 2-Location and geological map of the study area (Minjhari), SU: Maharashtra.

Parts of areas of Chandrapur and Gadchiroli dist., Maharashtra, in the Western Bastar Craton are long back identified as prospective zones for base metal mineralization. Presence of sporadic old workings is also reported in the area. Hydrothermal base metal mineralization is located at Thanewasna-Ghanpur-Mudholi area, (TS-56M/9 & 13), Chandrapur and Gadchiroli dist., Maharashtra, in the Western Bastar Craton. The Cu ± Au deposit of Thanewasna, Bastar Craton, Central India (Fig. 2), is hosted in quartz–chlorite veins traversing granitoid rocks (1587±14Ma) along the northern shoulder of the Godavari rift (Dora, 2015 and references therein). A prominent and prospective quartz reef

is also exposed in Minjhari area (55P/11) for a strike length of about 3 km with width varies from 05 m to 40 m. Exploration for copper and relate mineralization is under execution in Minjhari area, Chandrapur district. Geologically, the area exposes basement rocks characterized by a cratonic assemblage of three suites of Plutonic rocks viz. (1) Diorite−Quartz diorite−Tonalite suite, (2) Charnockite-Pyroxene-diorite suite and (3) Pyroxenite suite, together with different generation of intrusive rocks (Mukherjee, et al., FS: 2004-07 and references therein; Nirwan et al. 2012 and references therein). A large granite body, part of which occurs in the central part of the study area, intrudes the

Ore genetic study of copper mineralization in and

around Minjhari area, Chandrapur District, Maharashtra.


23

cratonic assemblage in the area. Mineralization in the Thanewasna area is confined to en-echelon quartz-chlorite-barite veins along NW-SE trending brittle zone cutting through granitoid and parallel to the Godavari rift running from Thanewasna to Govindpur (Mahapatra et al. 2009; Dora et al., 2014). This brittle zone, hosting base metal mineralization at places, extends for a strike length of over 100 km from Govindpur in north to little beyond Kansari in the south. Mineralization occurs as disseminations, stringers and veins, along a structurally controlled brittle plane/ zone. Mineralization was further enriched due to later remobilization during periodic reactivation of shear (?) and brittle plane/ zone. The present study area (Fig. 2), Minjhari Cu prospect, (research project in collaboration with the M-IIA project, SU: Maharashtra) forms part of Western Bastar Craton lying north of the Thanewasna Cu-deposit. The dominant copper mineral occurring in the area chalcopyrite and minor covellite (Khuntia and Kumaravel, 2015). Preliminary fluid inclusion and microthermometry data indicated presence of aqueous vapour fluid inclusions in the mineralized zone and the homogenization temperature of these aqueous vapour fluid inclusions occurred between the temperature ranges of 125°C and 226°C (Kumaravel, 2016). The major observations of the present study are as follows: 1. Host rock: The basement gneissic country rock is exposed at places in the area. Enclaves of older supracrustal viz. fuchsite quartzite, pyroxenite, amphibolite, BMQ are observed within the basement rock also within the younger granites. The hydrothermal Cu and associated mineralization in the Minjhari area are hosted mainly within theyounger granitic country rock. Both grey granite and pinkish K-feldspar rich granites are observed as the host rocks in the core samples. The porphyritic granite comprises sericitised K-feldspar, quartz, minor plagioclase feldspar with subordinate biotite and chlorite. The accessory minerals are apatite, rutile, epidote, monazite, zircon etc. The major oxides mineral observed are martite. Evidence of brittle deformation is pronounced within this granitic litho-unit. 2. Wall rock alteration zones: Intense wall rock alteration activities are observed in the mineralized zones. The most pronounced alteration is chloritic alteration and perceived throughout the entire mineralized zones and in all along the drill cores. Narrow (<0.5m) to thicker (up to 5-6 m) darker chloritic wall rock alteration zones asymmetrically flanks the mineralised veins and gradational to the less altered granitic host rock. Presence of chlorite may be resulted from alteration of mafic minerals or due to introduction of Fe

and/or Mg within the hydrothermal fluids. Other subordinate wall rock alterations are silicification, reddish potassic alteration (microclinization), argillic-alteration (kaolinisation), tourmalinization, phyllic (or sericitic) alteration and carbonatization. 3. Mineralization: 2a) Hydrothermal fluids can easily circulate through a rock mass along fractures and fault zones present in it. The main Minjhari quartz reef (V1) is intermittently mineralized and located sub-parallel to the Mudholi-Ghanpur-Thanewasna-Gobindpur brittle zone (Fig.2). The trend of the Minjhari quartz reef (V1) is N8°E- S8°W in the southern part and changes to N-S in the central part and again N15°WS15°E in the northern part. This Minjhari quartz reef (V1) is ~3 km long and 5-30m wide. The main Minjhari quartz reef (V1) is traversed by thinner secondary quartz veins of at least two generations (V2 and V3). Though the Minjhari quartz reef (V1) is mineralized but richer mineralization is observed within secondary V2 quartz veins enclosed within the V1 quartz reef. Movement of hydrothermal fluid caused hydrothermal brecciation within the Minjhari quartz reef (V1). 2b) Ample evidence of epithermal mineralization like comb texture, colloform texture is observed within the richer mineralized V2 quartz veins. Deposition from hydrothermal solutions in open fissures and fractures resulted in comb structures and symmetrically crustified quartz veins. Quartz grown in vugs and open veins are characterized by well-developed crystal faces, exhibiting growth zoning and colloform or zoned monominerallic quartz bands. The banding indicates the change in the ore-forming fluids and the physico-chemical environment of mineralization. All these structures indicate unhindered growth of minerals in hydrothermal fluid filled voids. 2c) Thinner quartz veins (V-3) cut-across both V1 quartz reef and richer mineralized V2 quartz veins. Presence of different generations of sulfidic and non-sulfidic quartz veins and brecciated nature of the host rock and mineralized zones indicate multiple pulses of hydrothermal activity and episodes of brittle deformation in the area. The major sulphide phase observed within the area is chalcopyrite and subordinate pyrite, galena, covellite, tetrahedrite etc. Traces of ultrafine gold and silver grains are observed. Barite grains are present and associated with the V3 pulse of hydrothermal activity. Fluid inclusion petrography indicates, presence of different fluid inclusion assemblage in the host rock and in the mineralized zones.


24

The Tikarpara Domain (TD) and Phulbani Domain (PD) of EGMB are situated on either side of the Mahanadi Shear Zone (MSZ). The rock types exposed in TD and PD are similar and these rocks have undergone shearing within MSZ. These rocks are khondalite, quartzite, charnockite group of rocks, leptynite, garnet-biotite bearing quartzo feldspathic gneiss, porphyroclastic garnet-biotite quartzo feldspathic gneiss, K-feldspar rich garnetiferous granite, alkali feldspar rich coarse grained garnetiferous quartzo feldspathic gneiss and mafic granulite. Migmatizedkhondalite in PD (Fig 1) is characterised by two generations of biotite (Fig 3). Biotite1 was noted as inclusion within garnet and biotote2 has formed after the garnet. In TD this rock displays a bedded nature (Fig 2) where khondalite bands are alternating with the quartzite bands. The garnet grains contain an inclusion rich core and inclusion free rim. Charnockite group of rocks are enderbitic in PD whereas it is charnockitic in TD. K-feldspar rich garnetiferous granite is syn-shearing granite and is restricted within MSZ as thin veins. It is absent both in PD and TD. Alkali feldspar rich coarse grained garnetiferous quartzo feldspathic gneiss is exposed only in TD. Mafic granulites are of two generations. One contains garnet and the other one is without garnet. In PD, D1 deformation has resulted in F1 folds and concomitant NE striking S1 with north-westerly dip. S1 is folded and overturned in F2 and has generated S2. S1 and S2 are sub-parallel and have undergone a dextral drag becoming E-W to WNW near the shear zone. Isoclinal F1 fold is

characterized by axial planar NW- trending S1 in TD. F1 -F2

interference has developed hook shaped pattern.MSZ is WNW striking with steep dip towards north. Horizontal component of the shearing is dextral (Fig 7) and the north block is upthrown (Fig 8). Abundant pseudotachylite veins were noted both within and outside the shear zone suggesting post shear brittle deformation. Khondalites, charnockite group of rocks and granitoid have undergone mylonitisation in the shear zone. Ultramylonites were noted as well. Recrystallized quartz ribbons and minor recrystallization in feldspar grains suggest that the temperature of shearing is above 500˚C. The temperature and pressure for the metamorphism have been calculated from the garnet bearing mafic granulite from both the domains. In PD, the porphyroblastic garnets within mafic granulite have been formed from clinopyroxene, plagioclase and ilmenite in M1 (Fig 5, T: 817.6:C, P: ~8.1 Kbar). During M2, the pyroxenes have been transformed to amphibole and sypmlectite of clinopyroxene, orthopyroxene, plagioclase and ilmenite (Fig 4) has formed after hornblende and plagioclase at the contact of these two (P:~6.2, Kbar T: ~671°C). In case of TD coronal garnet has formed (Fig 6) within mafic granulite after clinopyroxene, orthopyroxene, plagioclase and ilmenite (T:~ 610°C; P: ~7.1 Kbar). U-Pb zircon dates indicate 982±19 Ma age for the charnockite group of rocks of Phulbani Domain and 959±78 Ma age for the charnockite group of rocks of Tikerpara Domain.No prominent difference was recorded in lithology, grade of metamorphism and geochronological signature in both the domains except the structural pattern. Hence both the domains can be treated as a single terrane. The structuaral difference in possible due to an effect of the shearing in the entire Tikarpara Domain in form of series of ‘Z’ folds.

Fig 1: Migmatised khondalite of PD Fig 2: Embeddedkhondalite of TD

Tectono-thermal evolution of the Mahanadi Shear Zone (Eastern Ghats Mobile Belt) in Purunapani-Gania area, Nayagarh District, Odisha.


25

Fig 3: Two generations of biotite in khondalite

Fig 4: Symplectite at plag and horblende contact

Fig 5: Porphyroblastic garnet

Fig 6: Coronal Garnet

Fig 7: Dextral sense of movement in MSZ (plan)

Fig 8: Upthrow movement of in MSZ (section)


26

The South Indian Granulites have a complex geological history. The terrain can be broadly divided into the Northern Granulite Terrain (NGT) consisting of Koorg, Biligirirangan and Shevaroy Hills massifs along with Madras Block and the Southern Granulite Terrain constituted of east and west Madurai Blocks and Trivandrum Block with Nagercoil massif (fig 1). The two terrains are separated by the east-west trending Cauvery Shear System (CSS) extending from Moyar-Bhavani-Attur shear zones in the north to Palghat-Cauvery shear zone (PCSZ) in the south (fig 1). The CSS has undergone reactivation during Pan African orogeny. A number of mafic-ultramafic bodies are present within this shear zone. These include Devanur, Devattur and Mahadevi complexes.

In view of such complexities, the present work has been taken up, as a part of RP/CHQ/MIV/2016/086, involving selected mafic-ultramfic rock units, both metamorphosed and unmetamorphosed, from a large area encompassing both Eastern Madurai Block (EMB) and Palghat-Cauvery shear zone(PCSZ) to delineate the differences in tectonomagmatic-metamorphic evolution of these two blocks. Initial studies were focused in (1) Devanur Complex within the PCSZ (fig 1) and (2) Manamedu Complex that is also within PCSZ but bears a discordant structural relationship to the later (fig 1). Observations in course of present work have identified two distinct suites of mafic rocks in Devanur that were not reported by previous workers. The older rock suite of Devanur consists of gneissic retrogressed garnetiferous charnockite, retrogressed (presently hornblende and biotite bearing) quartzofeldspathic gneiss, quartzite, calc silicate and an older mafic suite that includes melanocratic to mesocratic garnetiferous mafic and ultramafic gneiss and anorthositic gneiss with amphibolite facies overprint. The suite has undergone three deformation events and two distinct metamorphic events. Our textural studies reveal that the early granulite facies metamorphism (M1), concomitant with deformation (D1), involved a prograde heating event (9.2 kbar; 800° ± 50° C) followed by near isobaric cooling. Garnet

occurs both as progradeporphyrobasts (fig 2a) and as narrow to thick retrograde corona (fig 2b) formed during the cooling event. These rocks have subsequently been re-metamorphosed in amphibolite facies (M2) concomitant with shearing (D2) and foliation development (S2). A second generation garnet (fig 2c), compositionally different from the granulite facies garnet, developed in this metamorphic episode at around ~538° ± 56°C and 4.7 kbr and it was followed by decompression to 350° ± 20°C; P : 4.6 ± 0.08kbr and accompanying hornblende + plagioclase symplectite development around garnet (fig 2d, 2f). Finally there was post shear cooling also represented by hornblende and plagioclase corona around garnet (fig 2e). The younger mafic suite of Devanur consists of crudely foliated pyroxenite (fig 2g) and gabbro (fig. 2h), their metamorphosed equivalents (hornblendite, actinolite schist, actinolite hornfels, talc tremolite hornfels, plagiogranite, ferruginous chert and pink granite gneiss. The foliation (S2) developed in these rocks is related to strong shearing (D2). Metamorphism is in lower to middle amphibolite facies. Pristine igneous texture is still preserved in shear lenses. Sense of shearing is dominantly sinistral. Our field and laboratory observation till dateshows presence of two distinct mafic suites in the Manamedu Block in addition to ferruginous chert and plagiogranite. The older mafic suite of Manamedu consists of medium grained amphibolite with hornblende + plagioclase association (fig 3a). Very coarse garnet porphyroblasts are only locally observed and are surrounded by symplectite of hornblende and plagioclase (fig. 3b). Garnet formation conditions could not be accurately estimated as yet. But garnet breakdown and hornblende-plagioclase symplectite generation could be estimated at about 6.0 ±0.2 kbar and ~532 ±16°C. The younger mafic suite of Manamedu consists of porphyritic pyroxenite (fig 3c), anorthositic gabbro, medium grained gabbro (fig 3d), dolerite and ferruginous chert with low-grade amphibolite facies metamorphic overprint. Plagiogranite has intruded both the younger and older suites. The foliation in the older mafic suite of Manamedu and both the primary banding and low-grade metamorphic foliation in the younger mafic suite have a general northerly trend with steep easterly or westerly dip. Isoclinal folds with northerly or southerly closures have been identified.

A study of mafic-ultramafic rocks across Palghat Cauvery shear zone and Eastern Madurai Block of Southern Granulite Terrain


27

Fig 1. Geological map of a portion of Palghat Cauvery Shear

Zone and adjoiningEastern Madurai Block showing the Devanur Complex (DC)and the Manamedu Complex (MC).

Fig. 2a. Porphyroblastic garnet in the older mafic suite of Devanur, the garnet bears inclusions of orthopyroxene,

clinopyroxene and plagioclase.

Fig. 2b. Coronal garnet at the contact of orthopyroxene, clinopyroxene and plagioclase in older mafic suite of Devanur.

Grt

Cpx Cpx

Pl

Cpx Grt

Cpx Cpx

Opx


28

Fig. 2c. Second generation amphibolite facies porphyroblastic

garnet in sheared older mafic suite of Devanur, the garnets bear inclusions of hornblende, plagioclase and titanite

Fig. 2d. Symplectic corona of hornblende and plagioclase around garnet porphyroblast in older mafic suite of Devanur;

Fig. 2e. BSE image of symplectic corona of hornblende and plagioclase around garnet porphyroblast in older mafic suite of

Devanur.

Fig. 2f. Deformed symplectite of hornblende and plagioclase around garnet porphyroblast in older mafic suite of Devanur in

the shear dominated domains;

Fig. 2g. Pyroxenite in younger mafic suite of Devanur.

Fig. 2h. Alternating gabbro and pyroxenite bands in the younger mafic suite of Devanur

Opx

Cpx

Cpx Cpx

Grt

Grt


29

Fig. 3a. Hornblende-plagioclase association in the older mafic suite of Manamedu.

Fig. 3b. Porphyroblastic garnet with symplectite of hornblende and plagioclase around it in the older mafic suite of Manamedu.

Fig. 3c. Coarse grained tabular orthopyroxene phenocryst in medium grained pyroxenite from younger mafic suite of Manamedu.

Fig. 3d. Medium grained gabbro with lower amphibolite facies overprint from the younger mafic suite of Manamedu.

The Rajapalayam area, in the southern part of the Eastern Madurai Block in Tamil Nadu, exposes a variety of granulitefacieslithotypes including khondalite, garnet-cordierite gneiss, quartzite, mafic granulite, sapphirine bearing metapeliticgranulites and garnet-cordierite-orthopyroxene-kornerupine-sillimanite- ofbiotite gneiss present as isolated enclaves varying dimensions. Garnet porphyroblasts have overgrown this early gneissosity (fig 1a). Isolated kornerupine or kornerupine + quartz inclusions are present in both garnet and cordierite porphyroblasts (fig 1b-c). Also, coarse prismatic sillimanite are present in the rock and occasionally define a preferred alignment or are present as inclusions in orthopyroxene porphyroblasts suggesting that this mineral forms a part of the early assemblage in this rock. Textures suggest garnet and cordierite formation at the expense of first generation kornerupine, sillimanite and

quartz. The sillimanite inclusions have corona of plagioclase on them (fig 1d). The prograde reaction for orthopyroxene formation is not well understood. However, a double corona of second generation cordierite (Crd2a) and kornerupine (Krn2) on prismatic sillimanite separating the later from adjoining orthpyroxene porphyroblast (fig 1e) and also kornerupine + cordierite symplectite on coarse grained orthopyroxene (fig 1f), suggest retrograde cooling and/ or decompression (fig 2). Further, extensive development of medium grained symplectite of orthopyroxene and cordierite on garnet and kornerupine (fig 1g) can be explained by decompression reaction. Coarse kornerupine + quartz symplectite on cordierite porphyroblast (fig 1h), presence of remnant cordierite within kornerupine-quartz symplectite and occurrence of coupled kornerupine-quartz inclusion in garnet porphyroblast and occurrence of kornerupine corona on nearby orthopyroxene suggest late kornerupine + quartz formation through breakdown of orthopyroxene + cordierite or garnet + cordierite in a cooling reaction with or without further accompanying decompression (fig 2).

Pl

Opx

Cpx

Cpx Pl

Pl

Hbl

Hbl

Pl

Pl

Pl

Cpx

Cpx

Cpx

Cpx

Grt

Hbl

Hbl

Scap

Hbl

Hbl

Hbl

Pl

Pl

Metamorphic Evolution of kornerupine bearing pelitic granulites from Rajapalayam area of Tamil Nadu.


30

Fig 1. (a) Gneissocity defined by preferred alignment of kornerupine prisms truncating against garnet porphyroblast; (b) BSE image of kornerupine inclusions and kornerupine + quartz inclusions in porphyroblastic garnet. (c) Kornerupine inclusions in porphyroblastic cordierite; (d) Prismatic sillimanite inclusion in porphyroblastic orthopyroxene surrounded by thin corona of plagioclase; (e) Corona of kornerupine and cordierite on sillimanite and orthopyroxene porphyroblasts; (f) kornerupine-quartz intergrowth developed at the contact of orthopyroxene and cordierite porphyroblasts; (g) Symplectite of orthopyroxene and cordierite developed on early assemblage of garnet-kornerupine and quartz; (h) kornerupine-quartz intergrowth at the contact of porphyroblastic orthopyroxene and cordierite.


31

A qualitative partial petrogenetic grid in the P-T space has been constructed for the minerals including garnet-orthopyroxene-quartz-kornerupine-sillimanite-cordierite-sapphirine-spinel that is relevant to the studied assemblage, in the system FMAS and presented in fig 2. Calculation of stability relations suggests that such a grid will have six phases at each invariant point. The partial grid presented in fig 2 has been centred on the [Spr, Spl] invariant point which is most relevant for our studies since the kornerupine bearing granulites from Rajapalayam contains neither of these two phases. The grid includes MAS terminations for selected reactions that are pertinent to the Rajapalayam assemblages. Three MAS invariant points have been generated in the system and are represented by [Spl, Spr, Crd], [Spl, Spr, Py] and [Spl, Spr, Krn] in fig 2. The MAS invariants and univariant lines expand the kornerupine stability at much higher pressure compared to FMAS stability of the phase that has been marked by the grey shaded area in the figure. However, incorporation of Fe

+2 into the system preferentially stabilizes

garnet or orthopyroxene which incorporates more of this component compared to kornerupine thereby decreasing the

kornerupine stability field down-pressure for all practical purposes. The effect of boron on the stability of phases in the kornerupine-bearing pelitic assemblage has been shown in fig 2 with filled arrow heads. The dark arrow head shows the direction of shift of FMAS invariant point along the kornerupine absent univariant on increase in boron-content in the bulk. The effects on the MAS assemblages have been represented with light grey arrow heads that shift the MAS invariants towards the [Spr, Spl, Krn] along with their respective kornerupine-absent univariant lines. The prograde and retrograde reactions, as deduced from our present study, have been depicted with thick grey arrows on the petrogenetic grid. The arrows suggest (1) an initial prograde heating, possibly accompanied by compression as suggested by gneissosity development; (2) subsequent cooling with or without decompression followed by (3) strong decompression and (4) a final cooling event leading to development of kornerupine2 and quartz from garnet, orthopyroxene and cordierite.

Fig 2. Qualitative internally consistent P-T grid showing the kornerupine bearing and kornerupine absent univariants in FMAS (thick lines) and in MAS (thin lines); the effects of boron on kornerupine stability has been shown with solid arrow heads which indicate the directions of shifts of the invariants along the kornerupine-absent univariants on increasing the boron-content of the bulk; the grey area marks the kornerupine stability field in FMAS; the ACW P-T path has been shown with thick grey curves with arrow heads.


32

Occurrences of irregular and splash forms of the tektites and melt spherules are observed in the SE, E, N and NW part of ejecta, situated several hundred meters from crater rim. Dull to lustrous, pitted (vesiculated) and dark greyish-black variety of aerodynamically shaped tektites and melt spherules were mostly prevailed along the SE and E part of ejecta. These smaller glasses (tektites and melt spherules) primarily have splash forms (Fig. a and b), they have rounded habits indicating that they are fläden, and impact spherules formed from molten ejecta that cooled in mid-air while subject to rotational and aerodynamic forces. Compositional flow lines are also observed in tektites. Homogeneous dense glass bodies (both irregular and splash form) with high silica

content (SiO2 ~ 50-62%, Na2O ~ 1.6-3%, Al2O3 ~ 5.5 – 14%, MgO ~ 4.5-6%, FeO ~ 11-21%, CaO ~ 2-10% and TiO2 ~ 2% as derived from mineral chemical data) occur in the vicinity of Lonar Crater, India. Lustrous, often pitted and dark greyish-black variety of tektites occasionally show flow banding with compositional variation. Crystallization of fibrous plagioclase glass, droplets of tiny magnetite – titanomagnetite crystals and devitrified basaltic glasses suggest sudden quenching from basaltic melt droplets (Fig. 2). Feldspathic glasses with fibrous, radiating shape and devitrified micro laths have also been observed. Skeletonised growth of magnetite crystals indicates rapid cooling (Fig. 3). Lack of microlites and mineral remnants, and their uniform chemical compositions virtually preclude the volcanic origin of tektites reported from Lonar crater, Maharashtra, India.

Fig: a & b: Splash forms of the melt spherules and tektites.

Fig: 2. Tiny droplets of magnetite- titanomagnetite crystals (BSE image)

Fig: 3. Skeletonised growth of magnetite crystals (BSE image)

a b

Implications of tektites and melt spherules from Lonar Crater, India


33

Our studies confirm the presence of corundum (ruby) bearing zones concentrated along 3- 10 cm thick zones at the contact of chromitite and amphibolites, chromitite and anorthosite, and anorthosite and amphibolite. The samples are all pink to pink red, semi- transparent, with development of strong parting planes. The colour of gem corundum, and its quality, is owed to trace elements (or chromophore elements) that substitute the aluminium-oxide crystal lattice (e.g., Muhlmeister et al., 1998). Ruby's red colour is due to the presence of Cr

3+. In our studieswe have observed that the

corundum that is found to be associated with the anorthosites are mostly pink in colour while the ones associated with amphibolites are mostly pink red (ruby ) variety which definitely indicates higher content of Cr

3+ within

the rubies hosted in amphibolite. Gemmological characterization of the collected samples was done based on shape, specific gravity, behaviour towards ultra violet light, mineral inclusion studies and Raman spectroscopic studies. All the samples are pink to pink red in colour with more or less hexagonal habit and distinct parting.

Specific gravity of the samples ranges from 3.92 to 4.12 which characteristic of corundum. All the samples show bright red fluorescence under 365 nm wavelength ultraviolet light (Fig. 1a and b). Corundum is Al2O3 rich (> 97%) with Cr which imparts a pink- red color to corundum (ruby). There is decrease in Cr content from core to rim of the corundum porphyroblasts. Raman spectroscopic studies on the discrete ruby samples indicated the presence of primary peaks at378cm

-1, 417cm

-1,

451 cm-1

,644cm-1

and 750cm-1

(Fig.2). Petrological studies indicate the presence of colourless, pink to pink red corundum crystals (up to ~1.2 cm long), with euhedral to anhedral outline embedded within plagioclase rich matrix, of amphibolites and anorthosites. Corundum grains show distinctmulti coronal development of spinel, and sapphirine (Fig.2). At placesthere isextensive replacement of corundum by spinel which is also seen to retain the external morphology of the host corundum grain (pseudomorphous replacement) while at others the spinel, in turn, is seen to be replaced by sapphirine. Symplectitic growth of spinel (both Mg rich and Chrome spinel) is seen within the plagioclase. It is assumed so far from the petrological studies that the breakdown of corundum is caused due to exhumation and subsequent retrogration of the host rock as follows:

Fig. 1a.Ruby samples as collected from field, and 1b samples

under ultraviolet light of 365 nm wavelength.

Fig 1b.Ruby samples under ultraviolet light of 365 nm

wavelength.

GEMMOLOGY LABORATORY DIVISION

Mineralogical and gemmological characterization of Sittampundi Ruby, Tamil Nadu.


34

Fig. 2. Raman spectra of gem ruby. Inset of ruby in plagioclase rich domain of amphibolite.

However, desilication and decalcification of calcic plagioclase and amphibole appears to explain most of the mesoscopic features of porphyroblastic corundum in these rocks which

can be confirmed by metasomatism and element migration studies.

Corundum+ amphibole= plagioclase + spinel Corundum+ plagioclase+ spinel = sapphirine

Fig.3. Successive corona of spinel and Sapphirine around corundum

Since time immemorial, treatments are done in gemstones in order to enhance their beauty. In Gemmology Laboratory, GSI, quite a large number of commercial gemstones are received for testing from the general public, jewellers, traders etc. Of this huge number of gemstones, many come out as natural but treated ones. The various methods of treatment of gemstones include dyeing, fracture or cavity filling, heat treatment, lattice diffusion, formation of doublets and

triplets etc. The main challenge of the Gemmology Laboratory is to differentiate the pristine natural gemstones from the artificially treated natural ones. The present project aims to study these treatments in contrast to the natural pristine ones, using the conventional gem testing instruments as well as Raman spectroscopy.

Raman spectra of ruby at Sittampundi, Tamil

Nadu, India

Study and characterisation of treatments and enhancements done in commercial gemstones.


35

One 5.23ct glass filled ruby was submitted for Mineralogical report to GSI Gemmology Lab:

Figure:1, is the photomicrograph of that sample, where the orange-blue colour indicates the glass fillings

Figure:2, Corresponding Raman Spectroscopic study shows the occurrence of a hump along with a small peak at 1327nm, other than the peaks for corundum. This peak and the associated bell shaped curve is produced by the glass.

Figure: 3 Figure: 4 The above two figures represent the presence of green dye within a colourless beryl, which is a treated counterpart for emerald.

Miscellaneous Service of Gemmology Laboratory: During the period total 2259 nos. of Gemstones received from outside of GSI and revenue earned in INR fromApril 2016 to December2016 Rs. 21,52,923.00/-.

During this period, the Polar Studies Division has carried out expedition both in Arctic and Antarctica and glaciological studies in Sikkim Himalayas which are as follows. a. Antarctica Expedition in which 6 persons(Dr. Sandip Kumar

Roy and S/Shri. Prakash Kumar Shrivastava, Suptdg. Geologists, Abhishek Verma, Mohd Sadiq, Sr. Geologists and Deepak Gajbhiye, Geologist participated in 35

th ISEA as

summer team members since October,2015 to March,2016 to carried out research objective of the FSP), from GSI participated and started carrying field work in 4 approved RP items which included broadly topics of Geology & Geochronology, Glaciology and Sedimentology. The field areas were near vicinity of two Indian Stations.

Preliminary glaciologyobservations suggest snow accumulations over Polar Ice sheets during winter time, Lake sediment coring, Proress Lake, BroknessPeninsula (East Antartica).

b. In the month of April, 2016 was studied

therecession/advancement patterns, accumulation/ ablation, mass balance and flow of Vestre Broggerbreen glaciers Svalbard Arctic.

c. In Arctic expedition during July to August, 16 was studied the Late Quaternary sediments of Ny-Ålesund area, Svalbard.

d. In the month of September, 2016 to analysed the samples for the chronological interpretation.

POLAR STUDIES DIVISION, FARIDABAD

Raman spectra of ruby at Sittampundi,

Tamil Nadu, India


36

Measurement of stakes placed at Polar Ice Sheet, south of Grovness, Larsemann Hills.

Lake sediment coring, Proress Lake, Brokness Peninsula, East Antartica.

Mass Balance and flow of Vestre Broggerbreen glacier Svalbard Arctic.

Shri Gautam Bhattacharya, Central Vigilance Officer, GSI attended in Customised training programme at the International Anti-Corruption Academy at Laxenberg Austria held from 1

st to 12

th February 2016.

Participation in 5

th International Conference on ‘Future

Earth perspectives in South Asia’ Organised by National Association of Geographers, India (NAGI) and hosted by School of Geosciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu. Shri.A.S.Senthi Vadivel, Director (P&A), GSI attended and presented the paper at the 5

th International Conference on

‘Future Earth perspectives in South Asia’ held from 5th

– 7th

February 2016 Organised by National Association of Geographers, India (NAGI) and hosted by School of Geosciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu. Participation in the 9

th International Geographical Union

(IGU) Conference on ‘Land Use Change, Climate Extremes and Disaster Risk Reduction’ which is Organised by Department of Geography, Shaheed Bhagat Singh College, University of Delhi: ShriA.S.Senthi Vadivel, Director (P&A), GSI attended and presented his paper titled “Geo Park Potential in India: A sustainable Socio-Economic Perspective” in the

9th

International Geographical Union (IGU) Conference on ‘Land Use Change, Climate Extremes and Disaster Risk Reduction’ which is Organised by Department of Geography, Shaheed Bhagat Singh College, University of Delhi, Delhi, India, held from 18

th – 20

th March 2016.

Participation in PDAC International Conference 2016 at Toronto, Canada. An Indian delegation headed by Shri Nikunja B Dhal, Joint Secretary, Ministry of Mines visited Toronto, Canada from 6th March to 9th March, 2016 to attend the PDAC 2016 International Conference. The delegation attended the conference and number of business meetings organized during the conference. The conference was held at the Metro Toronto Convention Centre. Shri D. Mohan Raj, Deputy Director General, GSI and Dr. Joyesh Bagchi, Director (Technical), Ministry of Mines participated as Indian delegation. Participation in Mining INDABA 2016 at Cape Town, South Africa: It is currently the world's largest mining investment conference and Africa's largest mining event and this year Mining Indaba 2016 held at Cape Town, South from 8th to 11th February 2016. This year more than 7,000 internationally-diversified and influential professionals from the mining fraternity across the world took part in the conference. The Indian Delegation was led by Shri Balvinder Kumar, Secretary, Ministry of Mines, Government of India.

INTERNATIONAL DIVISION

Participatens attended the International Anti-Corruption Academy at Laxenberg Austria.


37

Delegates with Deputy Minister, Mr. David de Launay and

Assistant Deputy Minister, Ms. Cindy Blancher-Smith, Ontario Ministry of Northern Development and Mines.

The attractive panel on the Himalayan GeologyToronto, Canada.

India-NRCaN, Canada: Shri. D. Mohan Raj, Deputy Director General, GSI, WR, Jaipur and Dr. Y. K. Shami, Deputy Director General, Chemistry, GSI, CHQ, Kolkata nominated as nodal officers from GSI for NRCaN, PGE project and the proposed work on PGE project with NRCaN is under process. Technical assistance to Bhutan(Punatsangchhu PHEP-II, HE Project, 1020MW): Mr.B.M.Gairola, Director, Technical, GSI, SU: Dehradun, NR, Mr.T.B.Ghoshal, Superintending Geologist, GSI, ER, Kolkata and Ms.Kavitha. S, Geologist, GSI, ER, Kolkata visited Punatsangchhu (PHEP-II), Bhutan from 29.04.2016 to 02.05.2016 to inspect and suggest further strengthening measures for a major failure of rock mass from the crown to down stream surge chamber for Punatsangchhu-II Hydro Electric (HE) Project (1020MW).

Lecture by Prof. Iain Stewart of Plymouth University, UK: Prof. Iain Stewart of Geoscience Communication, Sustainable Earth Institute, Plymouth University, Plymouth PL4 8AA, UK delivered a lecture on the topic ‘Towards a Sustainable Earth: Integrating Geoscience with Sustainable Development ’ on 25

th January 2016 at GSI, CHQ, Kolkata which was attended by

the GSI officials. Term of Reference (TOR) between GSI and Geoscience Australia (GA): Terms of Reference (TOR) for Collaboration between Geoscience Australia (GA) and Geological Survey of India (GSI) for Preparing Short and Long Term Road Maps for Capacity Building and Technological Upgradation of GSI was approved by Ministry of Mines and approved TOR sent to GA, GA also agreed to sign the TOR, the signing of TOR is under process.

Indian delegates as audience in Mining Indaba 2016. Shri Balvinder Kumar, Secretary, Ministry of Mines,

Government of India Delivering his lecture at Cape Town.


38

Discussion going on with Hon’ble Minister of Ethiopia Meeting with Delegation from Morocco.

With an objective to compare and correlate the tertiary sediments of Birbhum Basin, the Present study was carried out in Gourangapur-Bankati area which lies in the easternmost extremity of theRaniganjBasin Where Gondwanas are concealed under a successive cover of Quarternary and Tertiary sediments aswell as Rajmahal Traps. In Gourangapur-Bankati area inboreholes RGB-2 to RGB-7 have been studied.

6 boreholes have revealed the presence of two assemblages ranging in age from Late Eocene - Early Miocene in each bore-core, having Striatriletes-Hammenisporis-Pinuspollenites- Cyathidites in the younger and Proxapertites-Spinizonocolpites- Palmaepollenites-Meliapollisin the older phase. Palaeoclimate and environment of deposition also studied on the basis of palynotaxa which indicates equable warm and humid tropical to sub-tropical climate over Raniganj Basin and Rajmahal- Birbhum Master Basin during the Cenozoic.

1. Proxapertites assamicus

2.. Palmaepollenites indicus

3. Melliapollis quadrangularis

4. Pinuspollenites sp.

5. Striatriletes multicostatus

6. Cyathidites australis

Photomicrographs of some important pollen and spores from study area.

PALAENTOLOGY DIVISION, KOLKATA

Palynostratigraphy of Gaurangpur- Bankati Area, Raniganj Basin and itscorrelation with Heruka Sector of Birbhum Basin


39

Studied of different quarries, villages and different river sections in Aizawl district, Mizoram in Bhuban Formation, Surma Group. Both vertebrate and invertebrate fossils were collected of different genera (Carcharodon carcharias, Hemispritus serra, Negaprion eurybathrodonetc.), shark vertebra, puffer fish mouth plate, crocodilian teeth etc. within intercalated buff coloured sandstone, greysiltstoneand

mudstone from the Upper Bhuban Formation, Surma Group. Specimens like upper and lower teeth of Negaprion eurbathrodonWhitley (Fig. 1) from the Paudam Quarry (N23°38ꞌ 56.3″ & E092°41ꞌ 11.3″), Puffer fish mouth plate (Fig. 2)from Peki Quarry (N23°45ꞌ 16.4″ & E092°40ꞌ 57.7″) and Crocodilian tooth (Fig. 3) from Phunchawng village (N23°46ꞌ 40.7″ & E092°40ꞌ 56.6″) were recorded for the first time from the Upper Bhuban Formation, Surma Group. The puffer fish was ranging from the Miocene to Pleistocene indicates tropical to thesub-tropical environment.

Fig. 1: Negaprion urybathrodon Whitley; A. Upper tooth with wavy serration.

Fig.1-B. Lower tooth with a smooth shoulder.

Fig. 2:Puffer fish mouth plate (Chilomycterus). Fig. 3:Crocodilian tooth.

The present contribution is the first in which ostrocod fauna, albeit one of low diversity, is recovered from the Lakadong limestone of the Shella Formation, Jaintia Group, at east of Mawmluh village, East Khasi Hill, Meghalya India. The exposed section, measured, is about 30 m thick (base was not exposed) and underlying the Lakadong sandstone. The section consists mainly of hard fossiliferous limestone with

intercalated thin bands of carbonaceous calc sand. The ostracod recovered in this work through standard chemical processing method come from a level about 5.5 m above the exposed base in form of complete carapaceand comprises Bairdia ilaroensis, Phalcocythere vesiculosa, Novocypris sp., which has important zoogeographical significance. Before this Bairdia ilaroensis has been recorded from Maastrichtian- Paleocene strata of Senegal (West Africa), Maastrichtian- Early Eocene of Egypt, Paleocene of Benin(Gulf of Guninea - Nigeria - Niger & Mali (Trans-Saharan Sea) as well as from

Records of some new vertebrate fossils from Bhuban Formation, Aizawl, Mizoram.

Record of Late Paleocene Marine Ostrocod Fauna from the Lakadong Limestone (Shella Formation, Jaintia Group), East Khasi Hill, Meghalay India.


40

upper Paleocene to lower Eocene strata of Libya, Phalcocythere vesiculosafrom Palaeocene of Senegal (West Africa), north African basins, Trans-Saharan basins, Gulf of Guinea basins while oldest record of genus Novocypris is known from Palaeocene - Early Eocene of Spain and France. Presence of larger benthic foraminifers: Glomalveolina primaeva in association with Glomalveolina levis militates shallow benthic foraminifers zone (SBZ)-4 equivalent to late Thanetian (Late Paleocene) age of osrtocods yielding level. Though study is in progress, however, present finding of these African- Western Neo- Tethys Ostrocods into Paleocene of Meghalaya, NE India; part of East Neo-Tethys, points a direct marine connection among East-Central and west Neo-Tethys during late Paleocene. Eastward dispersal of these ostrocods might be related to climatic warmingof the Paleocene-Eocene Thermal Maximum(PETM). L.F. Spath in 1922 erected the genus Hypengonoceras for the “Group IV” Placenticeras described by Vredenburg (1907) from the Coniacian of Bagh Bed of Central India and designated Placenticeras warthias its type species which was recorded from the lower Uttatoor Group of Southern India. Hypengonoceras was later found from various countries like

Madagascar (Collignon, 1963), Zululand of South Africa (Klinger and Kennedy, 1989), and Israel where its age has been assigned to be Albian. The type species Placenticeras warthiwas originally described by Stoliczka as Ammonites orbignyanus which was later redesignated as Placenticeras warthi by Kossmat (1895). The holotype of P. warthiarchived in the Curatorial Division of Geological Survey of India, Kolkata was inspected to reveal that the hand drawings of Stoliczka’s monographs are highly imaginary and misleading. Many morphological characters e.g. flexuous ribs, umbilical tubercles, clavate venter mentioned in Stoliczka’s description are completely absent in the original specimen (Fig. 1). This misinterpretation of the type specimen has a far reaching consequence because Spath (1922) erected a new genus Hypengonoceras and many generic attributes of the genus were provided from the incorrect information issuing from the highly restored sketches in Stoliczka, 1865 (Pl XLXIII, Fig 2). However, the holotype of P. warthi strongly resembles one of the variant of P. kaffrarium i.e., P. kaffrariummorphumkwelanenseEtheridge, 1904 described from the Coniacian horizons of Bagh Beds, Central India and Zululand, South Africa.

Figure 1. : Light microphotographs (1) and SEM image (3-4) of ostrocod fauna: 1&2. (right lateral view of carapace)Bairdia ilaroensisReyment and Reyment, 1959, 3.Phalcocythere vesiculosaApostolescu, 1961. 4. Novocypris sp. (right lateral view). Scale bar for 1= 500 µm, 2 & 3 =200 µm and 4=100 µm.

Figure 2. A-H: Placenticeras warthi Kossmat. A-D. Placenticeras warthi (GSI Type 201), A-B, Lateral views, C, Apertural view, D, Ventral view. E-F, Ammonites orbignyanus. The hand sketches of Stoliczka 1866, plate no. XLVIII, fig.2 reproduced. E. Note the flexuous ribs. F. Note the clavate venter. G. Suture of Placenticeras warthieproduced from Kossmat, 1895, plate VI, fig 8. H. Suture of Placenticeras warthireproduced from holotype.


41

बायतीम बूवैऻाननक सवेऺण (जीएसआई), खान भंत्रारम, बायत सयकाय का एक

संफद्ध कामाारम है। देश के सभस्त ऩ‎ृथ्वी ववऻान संफंधी गनतववधधमों की नोडर

एजेंसी के रुऩ भें इसके कामों का ववस्ताय देश के लरए खननज संसाधनों की खोज

से रेकय प्राकृनतक आऩदाओ ंका भूलमांकन, ऩुवाानुभान औय ननमंत्रण कयना तथा ववश्व स्तय ऩय ऩथृ्वी ववऻान के ऺेत्र भें देश के मोगदान को फढाना शालभर है। इसका कामाऺ ेत्र सुदयू फपीरे अंटाका टटका स ेरेकय गहये सभुद्र औय उलकावऩण्डों, जैव ववकास का अध्ममन एवं अलबरेखीकयण आटद शालभर है। अऩनी स्थाऩना सन ्1851 ई. से बायतीम बूवैऻाननक सवेऺण अऩने दानमत्वों का ननवाहन कय यहा है। बायतीम बूवैऻाननक सवेऺण प्रलशऺण संस्थान, हैदयाफाद भें बूवैऻाननक

प्रलशऺण हेतु देश प्रभुख संगठन है जो अऩन े हैदयाफाद स्स्थत प्रलशऺण संस्थान

भुख्मारम औय ऺेत्रीम तथा पीलड प्रलशऺण संस्थानों के भाध्मभ स े ववबाग,

याज्मों एव ं ननजी संस्थानों के एवं ववदेशों के ऩथृ्वी वैऻाननकों को अत्माधुननक

बूवैऻाननक प्रलशऺण प्रदान कयता है।

बायतीम बूवैऻाननक सवेऺण एक वैऻाननक एवं तकनीकी संगठन होन े के

फावजूद बायत सयकाय, गहृ भंत्रारम, याजबाषा ववबाग द्वाया सभम-सभम ऩय

जायी टदशा-ननदेशों के अनुऩारन भें संरग्न है।

वषा 2016 (जनवयी-टदसंफय) के दौयान याजबाषा टहदंी के प्रगाभी प्रमोग की टदशा भें संगठन की गनतववधधमों का वववयण प्रस्तुत है :

बायतीम बूवैऻाननक सवेऺण के ववलबन्न कामाारमों द्वाया ननमलभत रुऩ से टहदंी गहृ ऩत्रत्रकाएं प्रकालशत की जाती है स्जसभें ववबाग के ऩदाधधकारयमों एव ंउनके

ऩारयवारयक सदस्मों की यचनाएं प्रकालशत की जाती है। इस क्रभ भें वषा 2016 के

दौयान बाबूस, कें द्रीम भुख्मारम, कोरकाता से‎‘बूभंथन, भध्म ऺेत्र, नागऩुय स े

‘नभादा’,‎ऩस्श्चभी ऺेत्र, जमऩुय स ेबूगौयव’,‎ऩूवोत्तय ऺेत्र, लशरांग से‎‘इंद्रधनुष’,‎

बाबूस, प्रलशऺण संस्थान, हैदयाफाद से‎‘चेतना’,‎सुदयू संवेदन एव ंहवाई सवेऺण,

फंगरूरु स‎े‘ ववहंग’‎एव ं याज्म इकाई: त्रफहाय, ऩटना से‎‘ लरच्छवी’‎का प्रकाशन

ककमा जा चुका है, अन्म कामाारमों की गहृ ऩ‎त्रत्रकाओं का प्रकाशन प्रकक्रमाधीन है।

ववबाग भें टदनांक 14 लसतंफय, 2016 को टहदंी टदवस का आमोजन कय भाननीम

गहृभंत्री एवं भाननीम खान भंत्री का टहदंी टदवस के अवसय ऩय जायी संदेश ऩढा गमा। कें द्रीम भुख्मारम भें आमोस्जत कामाक्रभ को भहाननदेशक भहोदम न े

संफोधधत ककमा, अन्म ऺेत्रीम एवं याज्म इकाई कामाारमों भें भहाननदेशक भहोदम

के संदेश का वाचन ककमा गमा । भाह के दौयान कामाारमों भें टहदंी ऩखवाडा/सप्ताह भनामा गमा स्जसभें टहदंी टंकण, टहदंी ननफंध रेखन, टहदंी टटप्ऩण एवं आरेखन, टहदंी कववता ऩाठ तथा टहदंी प्रश्नोत्तयी आटद जैसी ववलबन्न टहदंी प्रनतमोधगताएं औय गनतववधधमां आमोस्जत की गईं। सभाऩन

सभायोह भें प्रनतबाधगमों औय सार बय टहदंी भें उत्कृष्ट कामा कयने वारों ऩुयस्काय

तथा प्रभाण ऩत्र स ेसम्भाननत ककमा गमा।

वषा 2016 के दौयान बायतीम वैऻाननक सवेऺण के ननम्नलरखखत कामाारमों का याजबाषामी ननयीऺण ककमा गमा :

1. बाबूस, ऩवूी ऺेत्र, कोरकाता 2. बाबूस, याज्म इकाई: आधं्रप्रदेश

एव ंतेरांगना 3. बाबूस, दक्षऺणी ऺेत्र, हैदयाफाद 4. बाबूस, सभुद्री एव ंतटीम

सवेऺण प्रबाग, कोरकाता 5. बाबूस, प्रलशऺण संस्थान हैदयाफाद 6. बाबूस,ऩस्श्चभी ऺेत्र, जमऩयु

7. बाबूस, याज्म इकाई: भहायाष्र

(ऩस्श्चभ), ऩणेु

8. बाबूस, याज्म इकाई: ऩजंाफ एव ं

टहभाचर प्रदेश, चडंीगढ

9. बाबूस, याज्म इकाई: याजस्थान,

जमऩयु

10.

बाबूस, याज्म इकाई: केयर,

नतरुवनतंऩयुभ

11. बाबूस, याज्म इकाई: तलभरनाडु

एव ंऩांडडचेयी, चेन्नई

12.

बाबूस, याज्म इकाई: लसस्ककभ,

गंगटोक

13. बाबूस, याज्म इकाई: ऩस्श्चभ फगंार एव ंअडंभान ननकोफाय, कोरकाता

बायतीम वैऻाननक सवेऺण भें बायत सयकाय, गहृ भंत्रारम, याजबाषा ‎ववबाग

द्वाया जायी टदशा-ननदेशों के अनुऩारन भें ननमलभत रुऩ से टहदंी कामाशाराओ ंका आमोजन ककमा गमा।

बायत सयकाय ‎की नीनत की अनुऩारना के क्रभ भें बायतीम वैऻाननक सवेऺण का द्ववबाषी वेफसाइट भहत्वाकांऺी ओसीफीआईएस ऩरयमोजना के तहत ककमा जा यहा है जो अप्रैर, 2017 तक काभ कयन ेरगेगा।

याजऩत्रत्रत अधधसूचनाए,ं सायांश, कामाारम आदेश, ऩरयऩत्र, टेंडय नोटटस, सूचना का अधधकाय से संफंधधत साभधिमा ंसंसद के ऩटरों भें यखे जान ेवारे दस्तावेजों

हहिंदी गृह ऩत्रिका

हहिंदी हदवस/सप्ताह/ऩखवाडा

ववभिन्न अधीनस्थ कार्ाालर्ों का राजिाषार्ी ननरीऺण

हहिंदी कार्ाशाला

सिंगठन की वेबसाइट का द्वविाषीकरण

अनुवाद कार्ा

राजिाषा प्रचार-प्रसार, िािसू, कें म,ु कोलकाता


42

तथा बाबूस के ववलबन्न ऩत्राचायों का आवश्मकतानुसाय अंिेजी से टहदंी तथा टहदंी से अंिेजी अनुवाद ककमा गमा जो द्ववबाषी जायी ककए गए। इस प्रकाय याजबाषा अधधननमभ 1963 की धाया 3(3) तथा याजबाषा ननमभ 5 की अनुऩारना सुननस्श्चत की गई। ऺेिीर् कार्ाालर्ों के हहिंदी की नतमाही प्रगनत ररऩोटा एविं वावषाक मूलर्ािंकन ररऩोटा की समीऺा

सबी ऺेत्रीम कामाारमों के टहदंी की नतभाही प्रगनत रयऩोटों की सभीऺा की गई एव ं

उधचत कायावाई कयन ेहेतु संफंधधत त्रफन्दओुं के प्रनत उनका ध्माना आकृष्ट ककमा गमा। वावषाक भूलमांकन की सभीऺा हेतु टदनांक 08 एव ं09 भाचा, 2017 को फंगरूरु भें अखखर बायतीम याजबाषा सभीऺा फैठक आमोस्जत की जा यही है।

अखखल िारतीर् वैऻाननक एविं तकनीकी राजिाषा सिंगोष्ठी

बायतीम वैऻाननक सवेऺण, याज्म इकाई: भहायाष्र (ऩ.), ऩुणे भें टदनांक 13 भई,

2016 को एक अखखर बायतीम वैऻाननक एवं तकनीकी याजबाषा संगोष्ठी का आमोजन ककमा गमा स्जसभें सभस्त जीएसआई के वैऻाननक/अधधकारयमों न े

बाग लरमा इस संगोष्ठी भें ननम्नलरखखत सवाशे्रष्ठ ऩांच शोधरेखों को ऩुयस्कृत

ककमा गमा :

संिहारम- टहभाचर प्रदेश के लरए भाननीम याष्रऩनत भहोदम से ऻान-ववऻान

ऩय बायतीम नागरयकों द्वाया भूर रुऩ स े टहदंी भें ऩुस्तक रेखन हेतु याजबाषा गौयव ऩुयस्काय 2015 (ततृीम) प्रदान ककमा गमा है।

राजिाषा कार्ाान्वर्न सभमनत की बैठकें

बायत सयकाय, गहृ भंत्रारम, याजबाषा ववबाग के ननदेशानुसाय बायतीम वैऻाननक

सवेऺण के सबी कामाारमों के प्रशासननक प्रभुख की अध्मऺता भें याजबाषा कामाान्वमन सलभनत का गठन ककमा गमा है एवं प्रत्मेक तीन भहीने भें ननमलभत

फैठकों का आमोजन कय कामाारम भें याजबाषा की स्स्थनत ऩय चचोऩयांत

आवश्मक ननणाम लरए जात ेहैं, तथा इसके कामावतृ्त संफंधधत ऺेत्रीम कामाान्वमन

कामाारम, याजबाषा ववबाग एव ंनगय याजबाषा कामाान्वमन सलभनत को बी बेजी जाती है।

खान मिंिालर् की हहिंदी सलाहकार सभमनत की बैठक में सहिागगता

खान भंत्रारम की टहदंी सराहकाय सलभनत की फैठकों भें बाबूस, कें द्रीम भुख्मारम

के प्रनतननधध ननमलभत रुऩ स ेबाग रेत ेहैं तथा फैठक के कामावतृ्त की अनुऩारना की जाती यही है।

ववशेष उऩलब्धधर्ािं

जीएसआई ऩोटार ऩय बूवैऻाननक, बूयसामननक, ब‎ूबौनतकीम एवं प्रशासननक

शब्दावरी का संकरन अऩरोड ककमा गमा है। इसके अनतरयकत ऩदाधधकारयमों के

भध्म वैऻाननक एवं तकनीकी शब्दावरी आमोग द्वाया प्रकालशत प्रशासननक

शब्दावरी (अंिेजी-टहदंी, टहदंी-अंिेजी) का ववतयण ककमा जा यहा है। याजबाषा संवगा की सभीऺा की जा यही है।

झलककर्ािं टदनांक 13.05.2016 को याज्म इकाई: भहायाष्र, ऩुणे भें आमोस्जत अखखर बायतीम वैऻाननक एवं तकनीकी याजबाषा संगोष्ठी की झरककमां

दीऩ प्रज्जवलरत कयते हुए भहाननदेशक अन्म उच्च अधधकायीगण अध्मऺीम बाषण देते हुए भहाननदेशक भहोदम

संगोष्ठी भें उऩस्स्थत प्रनतबागीगण कें द्रीम भुख्मारम की टहदंी गहृ ऩत्रत्रका‎‘बूभंथन’‎के अकं-4 का ववभोचन


43

डॉ. श्री आनदं अगस्ती, ननदेशक रॉपी प्राप्त कयते हुए अयववदं कुभाय, अवय शे्र. लर. शीलड प्राप्त कयते हुए

वऻैाननक/तकनीकी शोधरेख प्रस्तुत कयते हुए प्रनतबागी ग’‎ऺ ेत्र भें सुदयू संवेदन एव ंहवाई सवेऺण., फगंरूरु

टहदंी ऩखवाडा उद्घाटन सभायोह 2016 टहदंी टदवस तथा ऩयुस्काय ववतयण एव ंऩखवाडा सभाऩन सभायोह

टहदंी टटप्ऩण/आरेखन एव ंअनवुाद प्रनतमो‎धगता टहदंी कामाशारा

टहदंी काव्म प्रनतमोधगता प्रश्नोत्तयी प्रनतमोधगता


44


45

TRANSFER OF GAZETTED OFFICERS TO & FROM CHQ, KOLKATA (January–December, 2016)

Sl. No. Name Designation Transferred

From To

1 Dr. R.M. Sundaram Dy. Director General (G) RMH-III, ER, Kolkata M-IIIA, CHQ, Kolkata

2 Shri Satyabrata Guha Dy. Director General SU: Arunachal Pradesh, NER, Itanagar

PSS: P&M, CHQ, Kolkata

3 Dr. Dipayan Guha Director (G) NER, Dimapur G&IG Division, NCEGR, Kolkata

4 Shri Hemraj Suryavanshi Director (Geology) PSS: P&M-1, CHQ, Kolkata SU: Haryana, NR, Faridabad

5 Shri S. Ananda Murthy Director (Geology) SR, Hyderabad CHQ, Kolkata

6 Shri Sujit Kumar Tripathy Suptdg. Geologist CPL, CHQ, Kolkata NER, Shillong

7 Shri Parminder Singh Sethi

Suptdg. Geologist HRD Division, CHQ, Kolkata SU: P&HP, NR, Chandigarh

8 Shri Biplab Kumar Chakraborty

Suptdg.Geologist M-II B, NEnR, Kolkata FTC: Vajrakarur / Kothagudem (HQ; SU: AP&T, SR, Hyderabad)

9 Dr. Sudip Bhattacharyya Suptdg. Geologist NER, Shillong M-IIB, NEnR, Kolkata

10 Smt. Aparajita Datt Suptdg. Geologist NER, Shillong Publication Division, CHQ, Kolkata

11 Shri Shareef Mohamed Neduvenchery

Suptdg. Geologist M&CSD, Kolkata PSS: P&M (Monitoring of Marine & Coastal Survey activities), CHQ, Kolkata

12 Shri Sandip Goswami Senior Geologist ER, Kolkata CHQ, Kolkata

13 Shri Arun Bhadran Senior Geologist ER, Kolkata Geodata Div., CHQ, Kolkata

14 Ms. Priyanaka Chatterjee Senior Geologist ER, Kolkata Geodata Div., CHQ, Kolkata

15 Ms. Gargi Chakraborti Senior Geologist ER, Kolkata Geodata Div., CHQ, Kolkata

16 Smt. Rama Roy (Rudra) Senior Geologist NER, Guwahati Gemmology Lab., M-IV, CHQ, Kolkata

17 Shri Subrata Kumar Sardar

Senior Geologist NER, Shillong M-IIB, NEnR, Kolkata

18 Shri Jayanta Pramanik, Senior Geologist ER, Kolkata PSS: P&M-10, CHQ, Kolkata

19 Shri Avijit Mukherjee, Senior Geologist PSS: P&M-10, CHQ, Kolkata ER, Kolkata

20 Shri D.P. Dangwal, Senior Geologist CHQ, Kolkata SU: P&HP, NR, Chandigarh

21 Shri Jimmykumar Mahendrakumar Patel

Assistant Geologist SU: WB & AN, ER, Kolkata Mission-III, CHQ, Kolkata

ADMINISTRATION STREAM

Sl. No.

Name Designation Transferred

From To

1 Smt. Anusuya Narayan Principal Private Secretary SU: TN &P, SR, GSI, Chennai DG’s Cell, GSI, CHQ,

Kolkata

2 Shri V. Sriram Administrative Officer CHQ, Kolkata GSITI, Hyderabd

3 Shri M. Narsing Rao Administrative Officer CHQ, Kolkata SR, Hyderabad

4 Shri Subal Kumar Mondal Administrative Officer NR, Lucknow CHQ, Kolkata


46

5 Shri Pronab Chandra Khanra Administrative Officer GSITI, Hyderabad CHQ, Kolkata

6 Shri Joy Mukherjee Administrative Officer ER, Bhubaneswar CHQ, Kolkata

7 Shri Suhas Suresh Sadhu Administrative Officer CHQ, Kolkata CR, Nagpur

8 Smt. Suman Garg Administrative Officer CHQ, Kolkata NR, Lucknow

9 Shri Krishna Kanta Sardar Administrative officer CHQ, Kolkata Eastern Region, Kolkata

GEOPHYSICS STREAM


From To

1 Dr. B.K. Nandi Senior Geophysicist PSS: P&M-2, CHQ, Kolkata Geodata Division, CHQ, Kolkata

ENGINEERING STREAM


From To

1 Shri Anupam Gupta Superintending Engineer ER, Kolkata Engineering Division, CHQ, Kolkata

2 Shri Ishtiyaq Ahmed Executive Engineer (NFJAG) CHQ, Kolkata Mission-II, Nagpur

LIST OF OFFICERS TRANSFERRED ON PROMOTION TO AND FROM CHQ, KOLKATA (January–December, 2016)

Transfer of Director (Geology) on promotion to the post of Dy. Director General (Geology)

Sl. No. Name Transferred

From To

1 Dr. K. Jayabalan SU : Tamil Nadu and Puducherry, SR, Chennai

Geotechnical & Geohazard Management, Kolkata w.e.f. 01.11.2016

2 Shri Kajal Mondal M-IIB, NEnR, Kolkata SUs: Assam, Tripura, Mizoram, Meghalaya & Sikkim, NER, Guwahati

3 Shri Manohar Fulmari

SU: Maharashtra, CR, Nagpur Geotechnical & Geohazards Management, Kolkata

Transfer of Assistant on promotion to the post of Administrative Officer

Sl. No. Name Transferred

From To

1 Shri Gopal Chandra Mondal M&CSD, Kolkata APAR Cell (Non-Gazetted), CHQ, Kolkata

Transfer onpromotion of Joint Director (P&A) onpromotion to the post of Director (P&A)

Sl. No. Employee Name Present Posting Posting on Promotion

1 Shri Y.P. Rawat NER, Shillong CHQ, Kolkata


47

SUPERANNUATION

Shri Harbans Singhretiredfrom Geological Survey of India as Director General on 31.05.2016. He look over the charge as Director General on 22nd July 2014. He joined Geological Survey of India in

December 1979 at GSI, NR, Chandigarh and carried out excellent work in mineral exploration, systematic geological mapping and geomorphological studies. His

extended his service in Ministry of Environment and Forest, New Delhi on deputation, where he served as Joint Director/Scientist-‘D’ from March 2006 to Feb. 2007. Shri Harbans Singh took over the charge of GSI, NER Shillong in January 2013 in the capacity of Deputy Director General & HOD. From December 2013 to June 2014, he served as the Additional Director General & HOD of Northeastern Region, GSI. He joined as ADG, STSS at CHQ, Kolkata, on 16th June 2014 and

thereafter joined as the Director General, Geological Survey of India on 22nd July 2014. The GSI family wishes him a happy, healthy and peaceful superannuated life.

ACHIEVEMENT OF GSI

Sri Sekhar Chandra Ghosh after obtaining Master Degree (Geology) in 1961, joined Geological Survey of India in 1963 and superannuated as Director (SG) in August,

1997. He started his career as exploration geologist for coal in the then Coal Wing till 1972. In subsequent years of his service he was posted in different capacities in Palaeontology Division of different regions. He is the only palaeontologist in India who had been extensively carrying out research work on fossil conchostraca, commonly known as estheriids, of Gondwana sequence occurring in almost all Gondwana basins of India. He is the pioneer of Scanning

Electron Microscopy in Geological Survey of India. His untiring persuasion in palaeontological researches has brought him D. Sc. Degree in Geology from the

University of Calcutta on 15thJune, 2016 on his dissertation entitled “Palaeontology and Biostratigraphy of Fossil Chonchostraca of India: A New

Contribution to Gondwana Geology in Global Context”.


48


49

Atheletic meet at GSI Kolkata

Regional drama competition at GSI Kolkata

Volleyball Tournament at GSI Kolkata

Cricket Tournament at Salt Lake, GSI Kolkata

Photography Competition at GSI Kolkata Photography Competition at GSI Kolkata


50

Compilation, Editing, Formatting and Designing

AROBINDO BISWAS

Suptdg. Geologist, PID-I GSI,CHQ

ARPITA PANKAJ

Senior Geologist, PID-I GSI, CHQ

Supervision

NIRMAL DHAR

Director, PID-I, GSI, CHQ

Guidance

BRIJ KUMAR

Addl. D. G. & National Head Mission -III

TRIBHUWAN SINGH PANGTEY

Addl. D. G. & National Head Mission- IV& III

PRABIR KUMAR MONDAL

Addl. D. G. & National Head Mission -III

&

GIRIRAJ PRASAD GUPTA

Dy. D. G., Mission – III B

GEOLOGICAL SURVEY OF INDIA KOLKATA · GEOLOGICAL SURVEY OF INDIA KOLKATA Volume 47, No. 1&2...

Documents

Transcript of GEOLOGICAL SURVEY OF INDIA KOLKATA · GEOLOGICAL SURVEY OF INDIA KOLKATA Volume 47, No. 1&2...