Radio-echo layering in WestAntarctica : a spreadsheet dataset
Antarctica ; Cold area ; Geophysics ; Glacial flow ; Glaciology ; Ice sheet ; Modelling ; Numerical model
in the dataset. The aims of this work are to establish the englacial structure of WestAntarctica, as recorded by RES, and to make the results available to the glaciological community.
Here, radio-echo sounding (RES) layering of the West Antarctic Ice Sheet, from the 1970s RES survey of approximately 70 per cent of this ice mass, is made available in a series of spreadsheets. Three types of internal layers are evident
the marine Ross Embayment. Today, it encompasses one fourth of the ice-sheet surface, extending far inland into both East and WestAntarctica.
The AA. present a revised reconstruction of the Ross ice drainage system of Antarctica at th Last Glacial Maximum (LGM) based on a recent convergence of terrestrial and marine data. The Ross drainage system includes all ice flowlines that enter
Geochronological correlations of Precambrian and Paleozoïc orogens in New-Zealand, Mary Byrd Land (WestAntarctica), Northern Victoria Land (East Antarctica) and Tasmania in Gondwana Five. Selected papers and abstracts of papers.
Glacial and periglacial deposits of the Tumbledown Cliffs area, James Ross Island, WestAntarctica
Antarctica ; Erratic boulder ; Geochronology ; Glacial features ; Kame ; Moraine ; Palaeo-environment ; Periglacial features ; Quaternary
The glacial geology was investigated with the purpose of studying the genesis and chronology of the glacigenic deposits in the Tumbledown Cliffs area on the west coast of James Ross Island. Erratics are evidence of an earlier, more widespread
Geological background to a Devonian plant fossil discovery, Ruppert Coast, Mary Byrd Land, WestAntarctica in Gondwana Five. Selected papers and abstracts of papers.
Antarctique ; Biostratigraphie ; Datation ; Dévonien ; Gondwana ; Géographie des régions polaires ; Marie Byrd Land ; Paléobiogéographie ; Paléogéographie ; Paléozoïque ; Volcanisme ; WestAntarctica
Field studies which were performed in 1990 on a strain network yielded all quantities which are necessary to solve the mass-conservation equation with respect to the melting rate underneath the Filchner-Ronne ice shelf, Antarctica. The network
was located about 30 km inland from the ice front and about 50 km north-west of Filchner Station. - (L'A.).
A comparison is made of the Holocene records obtained from water isotope measurements along 11 ice cores from coastal and central sites in east Antarctica and westAntarctica. the longterm trends possibly reflect local ice sheet elevation
involves the stability (instability) of the marine-based West Antarctic Ice Sheet. An understanding of the response of the West Antarctic Ice Sheet to a variety of forcing mechanisms can come from examining its past behavior. Answers to these questions
to the present. The AA. have attempted to synthesize these data sources to provide a more complete record, and to reconcile them with climatic events recorded elsewhere in Antarctica and the deep sea.
Late Quaternary glacial history of George VI Sound area, WestAntarctica
During the last glacial maximum in WestAntarctica separate ice caps developed on Alexander Island and on Palmer Land, became confluent in George VI Sound, and discharged northward from latitude 72 S. Radiocarbon (>32,000 yr) and amino acid
Advance of the outlet glaciers during regional warming as inferred from Late Holocene massive diamicton in the King George Island fjords, the South Shetland Islands, WestAntarctica
The new data give more detailed insights into the structure and evolution of the Explora Escarpment. To the west (19° W) the escarpment vanishes as a topographic feature. We interpret a newly discovered structure, denominated Polarstern Bank (71° 30
The SW decrease in age of the South American pre-Andean orogenies suggests a revision of the relative positions of South America and WestAntarctica within Gondwana.
Antarctica ; Bibliography ; Geophysics ; Glacial features ; Glacier ; Glaciology ; Ice sheet ; Numerical model ; Remote sensing ; The 2000's
and numerical modelling. The AA. focus on the example of WestAntarctica. They discuss 2 examples of the ways in which numerical models offer significant potential for testing ‘glacial geomorphological’ hypotheses of continental glacial landscape evolution