The behaviour of dry based glaciers and the interpretation of Pleistocene glacial deposits from glaciers in the Dry Valleys, Antarctica
Entry ID: K064_1994_2005_NZ

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Summary
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).

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Geographic Coverage
 N: -77.2 S: -77.8  E: 163.6  W: 162.6166

Temporal Coverage
Start Date: 1994-12-22
Stop Date: 1995-01-20

Start Date: 1996-01-05
Stop Date: 1996-01-29

Start Date: 1996-12-07
Stop Date: 1997-01-25

Start Date: 1997-12-15
Stop Date: 1998-01-22

Start Date: 1998-11-24
Stop Date: 1998-12-18

Start Date: 1999-11-26
Stop Date: 2000-02-05

Start Date: 2000-12-30
Stop Date: 2001-01-24

Start Date: 2001-12-05
Stop Date: 2002-01-13

Start Date: 2002-12-30
Stop Date: 2003-01-21

Start Date: 2003-11-08
Stop Date: 2003-12-04

Start Date: 2004-11-19
Stop Date: 2004-12-14


Paleo_Temporal_Coverage
Chrono Unit:


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > WRIGHT VALLEY
CONTINENT > ANTARCTICA > LOWER WRIGHT VALLEY
CONTINENT > ANTARCTICA > TAYLOR VALLEY
CONTINENT > ANTARCTICA > RHONE GLACIER
CONTINENT > ANTARCTICA > SUESS GLACIER
CONTINENT > ANTARCTICA > TAYLOR GLACIER
CONTINENT > ANTARCTICA > VICTORIA VALLEY
CONTINENT > ANTARCTICA > UPPER VICTORIA GLACIER
GEOGRAPHIC REGION > POLAR


Science Keywords
TERRESTRIAL HYDROSPHERE >GLACIERS/ICE SHEETS >GLACIERS    [Definition]
TERRESTRIAL HYDROSPHERE >GLACIERS/ICE SHEETS >GLACIER MASS BALANCE/ICE SHEET MASS BALANCE    [Definition]
TERRESTRIAL HYDROSPHERE >GLACIERS/ICE SHEETS >GLACIER TOPOGRAPHY/ICE SHEET TOPOGRAPHY    [Definition]
TERRESTRIAL HYDROSPHERE >GLACIERS/ICE SHEETS >GLACIER MOTION/ICE SHEET MOTION    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION
INLAND WATERS


Platform
GROUND-BASED OBSERVATIONS    [Information]


Project
LTER >Long-Term Ecological Research    [Information]
AMICS >Antarctic Ice-Sheet Dynamics and Climatic Change: Modelling and Ice Composition Studies    [Information]


Quality
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.


Keywords
dry based glaciers
glacial deposits
structural glaciology
ice marginal landforms
glacier sediments


Data Set Progress
COMPLETE


Originating Center


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: SHULAMIT GORDON
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Personnel
SEAN FITZSIMONS
Role: INVESTIGATOR
Phone: +64 3 479 8786
Fax: +64 3 479 9037
Email: sjf at geography.otago.ac.nz
Contact Address:
Department of Geography
University of Otago
PO BOX 59
City: Dunedin
Country: New Zealand


CEISHA POIROT
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


SHULAMIT GORDON
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Publications/References
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

Creation and Review Dates
DIF Creation Date: 2005-09-22
Last DIF Revision Date: 2009-03-27

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