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
the marine Ross Embayment. Today, it encompasses one fourth of the ice-sheet surface, extending far inland into both East and West Antarctica.
Rates of rock surface lowering, Princess Elizabeth Land, eastern Antarctica
Antarctica ; Cold area ; Erosion rate ; Salt ; Weathering ; Wind
A series of micro-erosion-meter sites on different rock types and in differing wind regimes was established and re-read after four years on two sites in the Larsemann and Vestfold Hills. These two oases in Eastern Antarctica are subjected to both
The AA. outline the importance of teaching about Antarctica and describe how the five fundamental themes in geography can be integrated into learning about that part of the world. - (DWG)
During the first three field seasons of the Italian Program of Research in Antarctica (1985-1988), the AA. studied emerged beaches along the coast of Terra Nova Bay, Victoria Land, and obtained 14C ages allowing the construction of a relative sea
-level curve. Here the AA. summarize the main results and discuss their relevance for the Holocene history of Antarctica, particularly for the Ross Sea sector of the continent.
Chronology of Taylor glacier advances in Arena Valley, Antarctica, using in situ cosmogenic 3He and 10Be
Antarctica ; Cold area ; Dating ; Geochemistry ; Geochronology ; Glacial features ; Glaciation ; Methodology ; Moraine ; Quaternary
Application of in situ cosmogenic nuclides to Antarctic glacial geology is ideal because soil development and weathering rates are extremely low in Antarctica. This paper describes the use of in situ cosmogenic 3He and 10Be to constrain the ages
of Quaternary moraine and older deposits formed by Taylor Glacier in Arena Valley, in the Dry Valleys region of Antarctica.
Ground Surface Temperature (GST), active layer and permafrost monitoring in continental Antarctica
Active layer ; Antarctica ; Climate ; Climatic change ; Periglacial features ; Permafrost ; Soil temperature ; Victoria Island
This paper presents the first results of the project Permafrost and Climatic Change in Antarctica carried out in Northern Victoria Land and funded by the Italian Antarctic Research Program since 1996. It aims to contribute both
to the standardisation of the monitoring protocol and to an understanding of the relationships between climate, GST, active layer and permafrost in continental Antarctica.
Observations on granite weathering phenomena, Mount Keinath, Northern Victoria Land, Antarctica
Antarctica ; Cold area ; Granite ; Periglacial features ; Weathering
Rock varnish, erosional grooves, and well-developed cavernous weathering phenomena occur in close association on a small biotite-monzogranite nunatak in the Northern Foothills region, Northern Victoria Land, Antarctica. The grooves, similar
that landscape modification in this exceptionally cold and arid region of Antarctica is very slow, and the long-term stability of the Antarctic ice sheet.
Rock weathering processes in Antarctica : a comparison of some recent studies with those from the Northern Hemisphere
Antarctica ; Chemical erosion ; Cold area ; Comparative study ; Freeze-thaw cycle ; Freezing ; Insolation ; Lithology ; Moisture ; Northern hemisphere ; Salt ; Weathering
is especially highlighted. An improved understanding of rock weathering in Antarctica is particularly important because of the slow rates of weathering that operates there and the impacts any changes in their rate may have on the continued development
Pingos in Antarctica appear to be residual landforms that have formed on the surface of the moraine as the ice core has been destroyed by ablation and thermal erosion. This interpretation appears to have misinterpreted tension cracks and coherent