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Victoria University Antarctic Research Expedition Science and Logistics Reports 1984-85: VUWAE 29

Geophysical Surveys near the Priestley Glacier Field Camp

page 30

Geophysical Surveys near the Priestley Glacier Field Camp

Gravity, magnetic and radio echo-sounding profiles were made near the Priestley Glacier camp, orthogonal to the Priestley Glacier; the profiles could not be extended beyond the moraine of the glacier due to crevasses. These surveys were done when planned surveys were not possible due to bad weather or because of unavailable helicopter support. A contact between schist and gabbro was observed in a spur near the camp, and the aim of the profiles was to detect the continuation of the contact beneath the ice. However, since no significant variations in any of the measurements were observed, it was concluded that the contact probably occurred beneath the glacier.

Measured ice thicknesses were about 700-800 m.

Acknowledgement

Other workers involved in this profile were G. Delisle (magnetics), R. Thierbach (radio echo-sounding), and H. Geipel (geodesy).