Cenozoic stratigraphy in Lower Taylor Valley, Antarctica

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Abstract
The unconsolidated deposits in Lower Taylor Valley consist of overlapping till sheets of small thickness and large areal extent. Each member is characterised by a distinct lithologic association, and can be traced over a large area, and placed in a stratigraphic column. Observations of present erosion and deposition are added for comparison with the older deposits. The sequence shows a progressive waning of Taylor Glacier, with subsequent uplift of the caastline. Evidence of interglacial deglaciation is absent, though deposits from local glaciers record fluctuations, presumably of climatic origin. Relationships within the valley suggest that it was excavated by an outlet glacier prior to the Pleistocene. It is proposed that headward erosion and stream capture by outlet glaciers from the Polar Plateau may have caused the deglaciation in the Dry Valley Region of South Victoria Land.