Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham)...
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Transcript of Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham)...
![Page 1: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/1.jpg)
![Page 2: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/2.jpg)
Logging Carbonates
Field Trip 2 Preparation
![Page 3: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/3.jpg)
Logging Carbonates
• Depth/Scale/Contacts
• Texture (Dunham)
• Mineral Composition
• Allochem Composition
• Bioturbation
• Color
• Fossils • Sedimentary Structures / Textures
• Porosity
• Comments Text: Boggs p. 170-186; Manual p. 90-94
![Page 4: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/4.jpg)
Grn l Pk l Wke l Mudst
![Page 5: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/5.jpg)
• Mark major contacts (color, grains size, lithology, etc.)
• Determine nature of contacts (sharp, gradational, erosional)
S Sharp G GradationalSI Sharp irregular B Gradational-interbeddedSC Sharp conformable VS Visibly scouredSD Sharp disconformable BU BurrowedST Stylolite
Depth/Scale/Contacts
• Calculate total depth and appropriate scale / units
![Page 6: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/6.jpg)
Texture
• Determine Dunham texture between major contacts.
• Plot texture / weathering profile.
Grainstone : Packstone : Wackestone : Mudstone
![Page 7: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/7.jpg)
http://www.glossary.oilfield.slb.com/DisplayImage.cfm?ID=24
Texture
![Page 8: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/8.jpg)
http://www.eos.ubc.ca/courses/eosc221/sed/carb/classification.html
Texture
![Page 9: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/9.jpg)
Logging Carbonates
• Depth/Scale/Contacts
• Texture (Dunham)
• Mineral Composition
• Allochem Composition
• Bioturbation
• Color
• Fossils
• Sedimentary Structures / Textures
• Porosity
• Comments Text: Boggs p. 170-186; Manual p. 90-94
![Page 10: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/10.jpg)
Mineral Composition
(Manual p. 92)
![Page 11: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/11.jpg)
Allochem Composition
(Manual p. 93)
![Page 12: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/12.jpg)
(M. Campbell)
Allochem Composition
![Page 13: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/13.jpg)
(M. Campbell)
Allochem Composition
![Page 14: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/14.jpg)
(416M)
![Page 15: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/15.jpg)
Logging Carbonates
• Depth/Scale/Contacts
• Texture (Dunham)
• Mineral Composition
• Allochem Composition
• Bioturbation
• Color
• Fossils
• Sedimentary Structures / Textures
• Porosity
• Comments Text: Boggs p. 170-186; Manual p. 90-94
![Page 16: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/16.jpg)
Bioturbation
• Determine extent of bioturbation
![Page 17: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/17.jpg)
Color
• Indicate color with letter symbols.
L - Light G - Gray C - CreamM - Medium B - Brown W - WhiteD - Dark R - Red Bk - Blackm - Mottled O - Orange Cl - Clear
Y - Yellow Gn - Green Bl – Blue
Example: LBG = light brownish gray
![Page 18: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/18.jpg)
Logging Carbonates
• Depth/Scale/Contacts
• Texture (Dunham)
• Mineral Composition
• Allochem Composition
• Bioturbation
• Color
• Fossils
• Sedimentary Structures / Textures
• Porosity
• Comments Text: Boggs p. 170-186; Manual p. 90-94
![Page 19: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/19.jpg)
(416M)
![Page 20: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/20.jpg)
Sedimentary Structures / Textures
(Manual, p. 94)
![Page 21: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/21.jpg)
Logging Carbonates
• Depth/Scale/Contacts
• Texture (Dunham)
• Mineral Composition
• Allochem Composition
• Bioturbation
• Color
• Fossils
• Sedimentary Structures / Textures
• Porosity
• Comments Text: Boggs p. 170-186; Manual p. 90-94
![Page 22: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/22.jpg)
Porosity
(Manual, p. 91)
![Page 23: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/23.jpg)
Comments
• Include comments of features not depicted graphically
- paleosols
- ghost grains
- unusual minerals
- cements (spar)
- porosity (percentage estimates)
![Page 24: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/24.jpg)
Logging Carbonates
Field Trip 2 Preparation
![Page 25: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/25.jpg)
Field Trip #2: Paleozoic Rocks
• Location
• Geology
• Assignment / Methods
• Reminders
Text: Manual p. 39-41; 57-65; 267-278; Compton 180-182.
![Page 26: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/26.jpg)
Location
Stop 1: Honeycut Bend, Archer Ranch near Johnson City
Stop 2: Crabapple Creek near Fredericksburg
Stop 3: Hoover Point near Kingsland
![Page 27: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/27.jpg)
LLano
Fredericksburg Johnson City
Kingsland
Marble Falls
3
1
2
10 milesN
![Page 28: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/28.jpg)
Geology
Bastrop
N
5 miles
Paleozoic Sedimentary Rocks
Ordovician - Pennsylvanian Carbonates
Cambrian
Wilberns Formation
Morgan Creek Limestone memberWelge Sandstone Member
Riley Formation
Cap Mountain Limestone memberLion Mountain Sandstone memberHickory Sandstone member
![Page 29: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/29.jpg)
(Manual, p. 272)
![Page 30: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/30.jpg)
Geology
Inversion of Topography
![Page 31: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/31.jpg)
Field Trip #2: Paleozoic Rocks
• Location
• Geology
• Assignment / Methods
• Reminders
Text: Manual p. 39-41; 57-65; 267-278; Compton 180-182.
![Page 32: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/32.jpg)
Assignment / Methods
Assignment #1
Measure and describe Paleozoic carbonates at Honeycut Bend.
• Subdivide into lithostratigraphic units.
• Measure and Describe each unit.
Work Oldest Youngest !!!
![Page 33: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/33.jpg)
Honeycut Bend
![Page 34: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/34.jpg)
Honeycut Bend
![Page 35: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/35.jpg)
Honeycut Bend
![Page 36: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/36.jpg)
Grn l Pk l Wke l Mudst
![Page 37: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/37.jpg)
Assignment / Methods
Assignment #2
Measure & plot azimuths of paleocurrent features at Crabapple Creek.
• 30 crossbed sets
• 10 current ripple marks
• Determine shoreline and seaward directions.
![Page 38: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/38.jpg)
Crabapple Creek
![Page 39: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/39.jpg)
Assignment / Methods
![Page 40: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/40.jpg)
Crabapple Creek
![Page 41: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/41.jpg)
Assignment / Methods
Practice: Manual p. 39-41
Plot azimuths and determine vector mean.
![Page 42: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/42.jpg)
Assignment / Methods
Assignment #3
Inventory features in Cambrian sediments at Hoover Point
![Page 43: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/43.jpg)
Insert inventory list here
(Luis Garcia)
Hoover Point
![Page 44: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/44.jpg)
Assignment / Methods
![Page 45: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/45.jpg)
Field Trip #2: Paleozoic Rocks
• Location
• Geology
• Assignment / Methods
• Reminders
Text: Manual p. 39-41; 57-65; 267-278; Compton 180-182.
![Page 46: Logging Carbonates Field Trip 2 Preparation Logging Carbonates Depth/Scale/Contacts Texture (Dunham) Mineral Composition Allochem Composition Bioturbation.](https://reader036.fdocuments.net/reader036/viewer/2022062314/56649efa5503460f94c0c777/html5/thumbnails/46.jpg)
Reminders
• Lab Manual
• Water
• Lunch
• Clipboard
• Pencil and Colored Pencils
• Ruler & Protractor
• Paper
• Brunton
• Rock Hammer
• HCl acid (provided)
• Hand Lens
• Field Notebook
• Raincoat
• Jeans