Link to Web Site Portal Home
Record Search Query: [Freetext='DIF/IDN_Node: AMD/NZ']
Bathymetric surveys, the geomorphology, glacial chronology, halite investigations, thermokarst formations, overland flow and stream bifurcations of Lake Bonney area
Entry ID: K009_1973_1974_NZ_1


[ Update this Record ]

Summary
Abstract: 35 holes were drilled through the ice in the smaller western lobe of Lake Bonney and the bathymetry of the lake was determined. A further 52 holes were used for the eastern lobe bathymetry. Sediment cores of up to 2m depth were obtained from the lake floor and analysed to determine the nature of the sediment cores and halite crystals recovered. The drill rig worked so well, it was transferred to Lake Vanda to obtain some cores from there to compliment previous cores which were not of the same quality. The expedition survey discovered and mapped the extent of the very large, pure, clear halite crystals occurring below 30m depth. Subsequent drilling resulted in cores having samples of dihydrohalite analysed by x-ray diffraction. A geomorphic investigation was made of the area extending from the Taylor Glacier snout down valley as far as the Naussbaum Reigel. As many as 23 former lake levels were identified. A small meltwater stream from the Calkin Glacier flowed overland until it reached a prominent kame terrace about 60m above Lake Bonney. The stream then disappeared into a cave some 15m long and 3m high. The stream was followed and studied to determine thermokarst processes, a term given when the melting of ground ice in unconsolidated sediments caused subsidence and pseudo-karst landforms like melt dolines, caves, natural bridges and subsurface flow. The overland flow and stream bifurcation of the Lake Bonney Reigel had the channel profiles surveyed in detail.

Related URL
Link: VIEW RELATED INFORMATION
Description: The investigators homepage


Parent DIF
This data set description is a member of a collection. The collection is described in
K009_1969_1990_NZ_1


Geographic Coverage
 N: -77.25 S: -77.8333  E: 163.5  W: 160.5

Temporal Coverage
Start Date: 1973-11-01
Stop Date: 1974-02-01


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > TAYLOR VALLEY
CONTINENT > ANTARCTICA > LAKE BONNEY
GEOGRAPHIC REGION > POLAR


Science Keywords
TERRESTRIAL HYDROSPHERE >SURFACE WATER >LAKES    [Definition]
LAND SURFACE >SOILS >SOIL CHEMISTRY    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION
INLAND WATERS


Platform
GROUND STATIONS    [Information]
FIELD INVESTIGATION    [Information]


Instrument
SEDIMENT CORERS    [Information]
VISUAL OBSERVATIONS    [Information]


Quality
Please check the publications or contact the investigator for more information.


Data Set Progress
COMPLETE


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
CHRIS HENDY
Role: INVESTIGATOR
Phone: +64 7 856 2889 Ext 4381 Or 4392
Fax: +64 7 838 4218
Email: c.hendy at waikato.ac.nz
Contact Address:
Department of Chemistry
University of Waikato
Private Bag 3105
City: Hamilton
Country: New Zealand


ALEX T WILSON
Role: INVESTIGATOR
Email: retired


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
Healy, R.T. 1975. Thermokarst - A mechanism of de-icing ice cored moraine. Boreas 5: 19-23.

Gumbley, J.W. The sedimentology of three Antarctic lakes. M.Sc., University of Waikato : . 1975.

Wilson, A.T. Hendy, C.H. Healy, T.R. Gumbley, J.W. Field, A.B. Reynolds, C.P. 1974 McMurdo Dry Valley lake sediments: a record of Cenozoic events. Antarctic journal of the United States 9(4): 134-135

Wilson, A.T. Hendy, C.H. Healy, T.R. Gumbley, J.W. Field, A.B. Reynolds, C.P. 1974 McMurdo Dry Valley lake sediments: a record of Cenozoic climatic events. Dry Valley Drilling Project bulletin 0.216666667

Hendy, C.H. Wilson, A.T. Popplewell, K.B. House, D.A. Dating of geochemical events in Lake Bonney, Antarctica, and their relation to glacial and climate changes. New Zealand journal of geology and geophysics 20(6): 1103-1122, 1977.

Gumbley, J.W. Wilson, A.T. Hendy, C.H. Nelson, C.S. Sedimentology of shallow cores obtained adjacent to Lake Vanda.Antarctic journal of the United States 9(4): 135-137, 1974.

Hendy, C.H. Wilson, A.T. Field, A.B. 1974 Geochemistry of the closed drainage basins of the McMurdo Oasis, Antarctica. Dry Valley Drilling Project bulletin 04:27

Hendy, C.H. Healy, T.R. Rayner, E.R. Wilson, A.T. 1975 A chronology for late Pleistocene events in the Taylor Valley, Victoria Land, Antarctica. Dry Valley Drilling Project bulletin 06:09

Hendy, C.H. Holdsworth, R. 1974 The physical impact of DVDP drilling at site 4, Lake Vanda. Antarctic journal of the United States 9(4): 144-146

Wilson, A.T. Holdsworth, R. Hendy, C.H. 1974 Lake Vanda: a source of heating. Antarctic journal of the United States 9(4): 137-138

Bydder, E.L. Holdsworth, R. 1977 Lake Vanda (Antarctica) revisited. New Zealand journal of geology and geophysics 20(6): 1027-1032

Creation and Review Dates
DIF Creation Date: 2009-04-15
Last DIF Revision Date: 2009-04-20


  Reformat as FGDC document



[ Update this Record ]