Geological and geomorphic data and Sirius Group core analysis (stratigraphy, petrographical analysis, ground temperature and isotope analysis) from Table Mountain to determine the depositional history

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Geological and geomorphic data and Sirius Group core analysis (stratigraphy, petrographical analysis, ground temperature and isotope analysis) from Table Mountain to determine the depositional history
Description:
Abstract:
The depositional and post depositional history of the Sirius Group tillite in the Dry Valleys area was investigated to resolve the ongoing debate as to whether the East Antarctic ice sheet formed 14 million years ago and retained its shape until present day (stabilists view) or if the nearly complete deglaciation of the East Antarctic Ice Sheet occurred 3 million years ago explaining the presence of rare marine diatoms in the Sirius Group (dynamic view). Detailed geological and geomorphic data was collected at 12 sites of the Sirius Group at Table Mountain and Mt Feather. Hand-held aerial photographs were taken of the area from an altitude of about 3000m. Enough data was collected to provide a detailed map of about 4 kilometres square on the northwest flank of Table Mountain. Cores were drilled in the Sirius at Table Mountain to gain information on its depositional history that cannot be determined from surface exposures. Coring locations were selected on the basis of geomorphic mapping and previous sites where study samples were taken. A total of 49m was drilled with 42 m of core recovered (87% recovery rate). On average, the core holes were 3.5m deep but two of them reached depths of 9.5m and 8m. Each core was analysed (stratigraphy and petrographical analysis) comparatively to determine the cause and relative timing of mineral dissolution and precipitation (mineral diagenesis). Stable isotope ratios of ice in pores and fractures was measured to provide important clues about the post depositional history of the Sirius. In addition to core drilling, closely spaced (10-30cm) ground temperatures from the surface to 4m depth were recorded from 4 holes to provide background information to (a) determine the potential for periglacial or active ground movement that could produce patterned ground on Sirius Group sediment and (b) calibrate oxygen isotope temperatures obtained from ice in fractures and in pores of the sediment. Temperature measurements were taken for a duration of five days at one hole but for only one to two days at the other holes. A reconnaissance of Mt Feather was completed and two holes were drilled to a depth of 0.8 and 0.4m.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Dickinson, W.W. Rosen, M.R. 2003 Antarctica permafrost: an analogue for water and diagenetic minerals on Mars. Geology 31(3): 199-202
Supplemental_Information:
REFERENCE: Dickinson, W.W., Cooper, P., Webster, B. And Ashby, J. 1999. A portable drilling rig for coring permafrosted sediments. Journal of Sedimentary Research 69: 518-521.
Supplemental_Information:
REFERENCE: Hicock, S.R. Goff, J.R. Dickinson, W.W. 2002 Macroscopic and mesoscopic analysis of outcrop and core, Sirius Group, Table Mountain, Dry Valleys, Antarctica. Royal Society of New Zealand bulletin 35: 319-325
Supplemental_Information:
REFERENCE: Goff, J.R. Jennings, I.W. Dickinson, W.W. 2002 Depositional environments of Sirius Group sediments, Table Mountain, Dry Valleys area, Antarctica. Geografiska annaler 84A: 11-24
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19961114
Ending_Date: 19961219
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 161.9711
East_Bounding_Coordinate: 161.9711
North_Bounding_Coordinate: -77.9625
South_Bounding_Coordinate: -77.9625
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 160.45
East_Bounding_Coordinate: 160.45
North_Bounding_Coordinate: -77.9333
South_Bounding_Coordinate: -77.9333
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 161.6333
East_Bounding_Coordinate: 161.6333
North_Bounding_Coordinate: -77.9083
South_Bounding_Coordinate: -77.9083
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > LAND RECORDS > GLACIATION
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > LAND RECORDS > ISOTOPES
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > LAND RECORDS > MICROFOSSILS
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > LAND RECORDS > STRATIGRAPHIC SEQUENCE
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > GLACIAL LANDFORMS
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > LAND RECORDS > BOREHOLES
Theme_Keyword: FIELD SURVEYS
Theme_Keyword: GROUND-BASED OBSERVATIONS
Theme_Keyword: FIELD INVESTIGATION
Theme_Keyword: ROCK CORERS
Theme_Keyword: SEDIMENT CORERS
Theme_Keyword: VISUAL OBSERVATIONS
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA > SOUTH VICTORIA LAND
Place_Keyword: CONTINENT > ANTARCTICA > MT FEATHER
Place_Keyword: CONTINENT > ANTARCTICA > TABLE MOUNTAIN
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: WARREN DICKINSON
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: School of Geography
Address: Environment and Earth Science
Address: Victoria University of Wellington
Address: PO BOX 600
City: Wellington
Country: NEW ZEALAND
Contact_Voice_Telephone: +64 4 463 6199
Contact_Facsimile_Telephone: +64 4 463 5186
Contact_Electronic_Mail_Address: Warren.Dickinson@vuw.ac.nz
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Samples are stored at Victoria University Wellington and available for use. Please contact the investigator for more information.
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NZ/NZAI/ANZ > Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
Contact_Person: SHULAMIT GORDON
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
Resource_Description: K047_1996_1997_NZ_1
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.antarcticanz.govt.nz/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20090303
Metadata_Review_Date: 20090303
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: CEISHA POIROT
Contact_Person_Primary:
Contact_Person: SHULAMIT GORDON
Contact_Position: DIF AUTHOR
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: c.poirot@antarcticanz.govt.nz
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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