The behaviour of dry based glaciers and the interpretation of Pleistocene glacial deposits from glaciers in the Dry Valleys, Antarctica

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Citation_Information:
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Publication_Date: Unknown
Title: The behaviour of dry based glaciers and the interpretation of Pleistocene glacial deposits from glaciers in the Dry Valleys, Antarctica
Description:
Abstract:
The formation of deposits and landforms at the margin of alpine glaciers in the Dry Valleys (The Suess Glacier, Taylor Glacier and Rhone Glacier in the Taylor Valley, the Wright Lower Glacier in the Wright Valley and Victoria Upper Glacier in the Victoria Valley) was studied over several seasons.The purpose of the work was to understand the operation of the margins of dry-based glaciers and to provide data to assist in the interpretation of Pleistocene glacial deposits. Fieldwork undertaken focused on structural glaciology, ice marginal landforms and sediments. Ice, water and sediment samples were analysed, including but not limited to, crystallography, chemical composition, gas content, isotopic composition, debris concentration, base cations and chloride concentration. Direct observations of the composition, structure and motion of the glacial ice was carried out by mapping and the installation of sensor equipment. Ice tunnels were constructed at the base of the glaciers and ice movement was measured using plumb lines, displacement transducers and strain arrays. Shear tests to test the strength of basal ice and material at the base of glaciers was also completed. Ice cores were collected from the basal zone of the glaciers, the glacier surface and the adjacent lakes (Lake Popplewell, Lake Bonny, Lake Brownworth and Victoria Upper Lake).
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Filmer, V. 2000. The basal ice layer of the Taylor Glacier, Antarctica. Unpublished BSc (hons) dissertation, in Geography, at the University of Otago, Dunedin, New Zealand. 84 pp. Fitzsimons, S. The state of the Ross Sea region terrestrial environment: Glaciers. In: Ross Sea Region 2001: A state of the environment report for the Ross Sea region of Antarctica. Waterhouse, E. (Ed). Christchurch: New Zealand Antarctic Institute. 2001. pp. 4.2-4.14. Hooker, B.L. Chemical signatures of clear basal ice facies at the margins of dry-based glaciers, South Victoria Land, Antarctica. M.Sc., University of Otago, 1998. Hooker, B.L., Fitzsimons, S.J. And Morgan, R.K. 1999. Chemical characteristics and origin of clear basal ice facies in dry-based glaciers, south Victoria Land, Antarctica. Global and Planetary Change 22: 29-38. Lambourne, A. 1998. Physical and chemical composition of basal ice from the Suess Glacier, Antarctica. Unpublished BSc (hons) dissertation, in Geography, at the University of Otago, Dunedin, New Zealand. 84 pp. Larking, R. 1997. The composition, structure and dynamics of a dry-based glacier apron. Unpublished BSc (hons) dissertation, in Geography, at the University of Otago, Dunedin, New Zealand. 68pp. MacDonell, S. 2003. Cold-based glacier behaviour: Victoria Upper Glacier, Antarctica. Unpublished BSc (hons) dissertation, in Geography, at the University of Otago, Dunedin, New Zealand. 102 pp. Mager, S. 1996. Sediment transport in dry-based glaciers : an assessment of sedimentary signatures imprinted by glacial transportation. Unpublished BSc (hons) dissertation, in Geography, at the University of Otago, Dunedin, New Zealand. 78 pp. Mager, S. 2005. A compositional approach to understanding the formation of basal ice in cold Antarctic glaciers. Unpublished PhD thesis in Geography and Chemistry, University of Otago, Dunedin, New Zealand. 220 pp. Morgan, T. 1999. Chemical and physical characteristics of ice from the basal zone, Taylor Glacier, Antarctica. Unpublished BSc (hons) dissertation, in Geography, at the University of Otago, Dunedin, New Zealand. 93 pp. Sirota, P. 1999. The structure and strength of basal ice in the Suess Glacier, Antarctica. Unpublished BSc (hons) dissertation, in Geography, at the University of Otago, Dunedin, New Zealand. 92 pp. Mager, S. and Fitzsimons, S. 2001. Sediment transport in dry-based glaciers: an assessment of the sedimentary signatures imprinted by glacial modification [Abstract]. Presented at: 2001 Geography A Spatial Odyssey, Joint Conference of the New Zealand Geographical Society and the Institute of Australian Geographers in Dunedin, in February 2001 Webb, N. 2003. Cold-based glacier apron morphology, structure, and composition : a multifaceted approach to testing basal ice formation by apron incorporation. Unpublished BSc (hons) dissertation, in Geography, at the University of Otago, Dunedin, New Zealand. 86 pp. Samyn, D. 2003. Equifinality of basal ice facies at the base of an Antarctic cold glacier. MSc, Université Libre de Bruxelles, Belgium Samyn, D. 2005. Structural and geochemical analysis of basal ice from Taylor Glacier, Dry Valleys, Antarctica. PhD dissertation, Université Libre de Bruxelles, Belgium. Sleewaegen, S. Samyn, D. Fitzsimons, S.J. Lorrain, R.D. Equifinality of basal ice facies from an Antarctic cold-based glacier. Annals of glaciology 37: 257-262, 2003. Fitzsimons, S.J. McManus, K.J. Sirota, P. Lorrain, R. Direct shear tests of materials from a cold glacier: implications for landform development. Quaternary international 86(1): 129-137, 2001. Fitzsimons, S.J. McManus, K.J. Lorrain, R. Structure and strength of basal ice and substrate of a dry-based glacier: evidence for substrate deformation at sub-freezing temperatures. Annals of glaciology 28: 236-240, 1999. Samyn, D., Svensson, A. And Fitzsimons, S.J. 2008. Dynamic implications of discontinuous recrystallisation in cold basal ice: Taylor Glacier, Antarctica. Journal of Geophysical Research 113, FO3S90, doi: 10.1029/2006JF000600, 2008
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Beginning_Date: 20041119
Ending_Date: 20041214
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Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 162.6166
East_Bounding_Coordinate: 163.6
North_Bounding_Coordinate: -77.2
South_Bounding_Coordinate: -77.8
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GLACIERS/ICE SHEETS > GLACIERS
Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GLACIERS/ICE SHEETS > GLACIER MASS BALANCE/ICE SHEET MASS BALANCE
Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GLACIERS/ICE SHEETS > GLACIER TOPOGRAPHY/ICE SHEET TOPOGRAPHY
Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GLACIERS/ICE SHEETS > GLACIER MOTION/ICE SHEET MOTION
Theme_Keyword: GROUND-BASED OBSERVATIONS
Theme_Keyword: LTER > LONG-TERM ECOLOGICAL RESEARCH
Theme_Keyword: AMICS > ANTARCTIC ICE-SHEET DYNAMICS AND CLIMATIC CHANGE: MODELLING AND ICE COMPOSITION STUDIES
Theme_Keyword: Dry Based Glaciers
Theme_Keyword: Glacial Deposits
Theme_Keyword: Structural Glaciology
Theme_Keyword: Ice Marginal Landforms
Theme_Keyword: Glacier Sediments
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: INLAND WATERS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: CONTINENT > ANTARCTICA > WRIGHT VALLEY
Place_Keyword: CONTINENT > ANTARCTICA > LOWER WRIGHT VALLEY
Place_Keyword: CONTINENT > ANTARCTICA > TAYLOR VALLEY
Place_Keyword: CONTINENT > ANTARCTICA > RHONE GLACIER
Place_Keyword: CONTINENT > ANTARCTICA > SUESS GLACIER
Place_Keyword: CONTINENT > ANTARCTICA > TAYLOR GLACIER
Place_Keyword: CONTINENT > ANTARCTICA > VICTORIA VALLEY
Place_Keyword: CONTINENT > ANTARCTICA > UPPER VICTORIA GLACIER
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: SEAN FITZSIMONS
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Department of Geography
Address: University of Otago
Address: PO BOX 59
City: Dunedin
Country: New Zealand
Contact_Voice_Telephone: +64 3 479 8786
Contact_Facsimile_Telephone: +64 3 479 9037
Contact_Electronic_Mail_Address: sjf@geography.otago.ac.nz
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Any existing samples that have not been used are stored in a MAF-registered transitional facilities in the Geography department at the University of Otago, New Zealand. All data is in the theses and publication. 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: K064_1994_2005_NZ
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:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://glaciers.otago.ac.nz/
Access_Instructions:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20050922
Metadata_Review_Date: 20090327
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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