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Immediate Report of Victoria University Of Wellington Antarctic Expedition 1987-88: VUWAE 32

Future Research

page 12

Future Research

The purchase and successful deployment of the S4 current meter this season now gives us the ability to quantitatively study water circulation. In the 1988-1989 season we intend to deploy the current meter at the MacKay Glacier Tongue for two months to record bottom current activity to determine whether glacier-generated mud-carrying density currents occur in this polar marine glacial setting.

Sea floor coring in Granite Harbour by Victoria University (Macpherson 1987) and Dunbar (S216) this season indicates that glacially deposited sediment may exist beneath the 1 m thick cover of diatom-rich mud. The glacial sediments were probably deposited during Holocene expansion of the MacKay Glacier, which is fed from the polar plateau. Granite Harbour therefore may contain accessible glacial marine sediments which could record Holocene changes in polar ice volume for this area of Antarctica.