with new field survey and sample reanalysis data to ... · ultra-trace aqua-regia digestion ICP-MS...

1
Acknowledgments Acknowledgments E. Jackaman, S. Reichheld, J. Dimock, J. Constable and B. Elder (Noble Exploration Services Ltd.). A. Rukhlov (BC Geological Survey). The many services in the communities of Holberg, Port Alice, Port Hardy, Port McNeill, Sayward, Winter Harbour, Woss and Zeballos. ALS Canada Ltd., Becquerel Laboratories Inc. and Island Coastal Economic Trust. Acme Analytical Laboratories Ltd. M. McCurdy and E. Jackaman, S. Reichheld and J. Dimock (Noble Exploration Services Ltd.). A. Therriault (NRCan); A. Rukhlov (BCGS, MEMNG). Acme Analytical Laboratories Ltd and Becquerel Laboratories Inc. Natural Resources Canada Ressources naturelles Canada O C L H U S M I T B I I R A B G Y E E O V L R O U G S I C L A The reanalysis of archived sediment samples has been sponsored by Geoscience BC since 2007. These programs have significantly enhanced the BC RGS database by providing a wide range of new analytical information at improved detection levels. McLeod Lake (NTS 093J): 1145 samples analyzed for 35 elements by instrumental neutron activation analysis (INAA). Lardeau (NTS 082K): 1224 samples by ultra-trace aqua-regia digestion (0.5 g) ICP-MS technique for 53 elements . RGS Sample Reanalysis NEW DATA AVAILABLE ROUNDUP 2013 Sediment Samples by INAA ... Sediment Samples by ICP-MS ... Geoscience BC Report 2013-04 Geoscience BC Report 2013-06 Acme Laboratories Ultra trace Aqua Region Digestion by ICP Mass Spec ... Becquerel Laboratories INAA Gold + 33 ... Northern Vancouver Island Exploration Geoscience Project NVI - Infill Geochemical Survey NVI - Till Sample Reanalysis Stream-based sample collection was carried out in the summer of 2012. Moss-mat sediment and water samples were acquired from over 700 sites. The sediment samples have been analyzed for base and precious metals, pathfinder elements and rare earths by an ultra trace aqua-regia digestion ICP-MS package and INAA. Waters have been analyzed for pH, conductivity and fluoride. To further augment NVI's geochemical database, till samples collected in the 1990s as part of the northern Vancouver Island drift prospecting program were recovered from storage and a portion of each sample as been recovered for analysis by an ultra-trace aqua-regia digestion ICP-MS package for 53 elements. The 2012 NVI project includes new stream based sampling plus the reanalysis of till samples. The work will generate new geochemical information that will stimulate mineral exploration in the region and compliment other components of the initiative such as a high-resolution airborne geophysical survey as well as earlier geochemical survey work and geological mapping. Survey results will be available in spring 2013. Government-funded reconnaissance-scale regional geochemical surveys (RGS) have been conducted in BC since 1976. Currently, more than 63,000 drainage sediment and water samples have been collected at an 2 average density of one sample for every 12 km . a comprehensive multi-element geochemical database that is routinely used to guide and support mineral exploration activities. Survey results comprise Efforts to maximize the utility of the BC RGS database include both new sampling and enhancements to available analytical information. In 2013, Geoscience BC supported the following geochemical initiatives: Reanalysis of 2586 stream sediment samples, previously collected in NTS 082F and K, for 53 elements by aqua- regia ICP-MS. Reanalysis of 450 till samples, previously collected in northern Vancouver Island, for 53 elements by aqua-regia ICP-MS. Reanalysis of 1145 stream sediment samples, previously collected in NTS 093J, for 35 elements by INAA. New stream sediment and water infill sampling covering areas coincidental with new airborne geophysics work. 2013 Geoscience BC Geochemical Projects Geoscience BC Sponsored Geochemical Projects - 2006 to 2012 Regional Surveys ... Sample Reanalysis ... 10,833 SAMPLES COLLECTED 34,868 SAMPLES REANALYZED Updating the British Columbia Regional Geochemical Survey database with new field survey and sample reanalysis data to support mineral exploration Wayne Jackaman & Ray Lett Roundup 2013

Transcript of with new field survey and sample reanalysis data to ... · ultra-trace aqua-regia digestion ICP-MS...

Page 1: with new field survey and sample reanalysis data to ... · ultra-trace aqua-regia digestion ICP-MS package for 53 elements. The 2012 NVI project includes new stream based sampling

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E. Jackam

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eichheld, J. Dim

ock, J. Constable

and B. E

lder (Noble E

xploration Services L

td.).

A. R

ukhlov (BC

Geological S

urvey).

The m

any services in the comm

unities of Holberg,

Port A

lice, Port H

ardy, Port M

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Winter H

arbour, Woss and Z

eballos.

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Acm

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aboratories Ltd.

M. M

cCurdy and

E. Jackam

an, S

. Reichheld and J. D

imock (N

oble Exploration S

ervices Ltd.).

A. T

herriault (NR

Can); A

. Rukhlov (B

CG

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NG

).

Acm

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aboratories Ltd and B

ecquerel Laboratories Inc.

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McL

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as carried out in the summ

er of 2012. M

oss-mat sedim

ent and water sam

ples were acquired

from over 700 sites. T

he sediment sam

ples have been analyzed for base and precious m

etals, pathfinder elements and rare earths

by an ultra trace aqua-regia digestion ICP

-MS

package and INA

A.

Waters have been analyzed for pH

, conductivity and fluoride.

To

further augm

ent N

VI's

geochemical

database, till

samples

collected in the 1990s as part of the northern Vancouver Island

drift prospecting program w

ere recovered from storage and a

portion of each sample as been recovered for analysis by an

ultra-trace aqua-regia digestion ICP

-MS

package for 53 elements.

The 2

012 N

VI p

roject in

cludes n

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men

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reconnaissan

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eoch

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conducted

in B

C sin

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In 2

013, G

eoscien

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supported

the fo

llow

ing g

eoch

emical in

itiatives:

Rean

alysis of 2586 stream sedim

ent

samples, previously collected in N

TS

082F and K

, for 53 elements by aqua-

regia ICP

-MS

.

Rean

alysis of 450 till samples,

previously collected in northern

Vancouver Island, for 53 elem

ents

by aqua-regia ICP

-MS

.

Rea

nalysis o

f 1145 strea

m

sedim

ent sa

mples, p

revio

usly

collected

in N

TS

093J, fo

r 35

elemen

ts by IN

AA

.

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stream

sedim

ent a

nd

wa

ter infill sa

mp

ling co

verin

g

areas coin

ciden

tal with

new

airbo

rne g

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rk.

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roje

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scie

nc

e B

C S

po

nso

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G

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ch

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ical P

roje

cts

- 2006 to

2012

Region

al Su

rveys ...S

amp

le Rean

alysis ...

10,833 S

AM

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ES

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LL

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su

rvey a

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sam

ple

rean

aly

sis

data

to s

up

po

rt min

era

l exp

lora

tion

Wayn

e J

ackam

an

& R

ay L

ett

Ro

un

du

p 2

013