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Victoria University Antarctic Research Expedition Science and Logistics Reports 1991-92: VUWAE 36

Blue Glacier

Blue Glacier

About a 1.5 days (6 - 7 December) were spent at the Blue Glacier tide water terminus and 2 ROV dives were made from one site approximately at the centre of the terminus cliff. At this site water depth was about 100 m and the sea floor covered with fine mud. A small (3 m high) push moraine is present infront of the underwater cliff which has recently calved and rebounded a few metres (less than 5 m) off the sea floor. Some current was observed but we are unsure if there was any associated salinity changes because the CTD was inoperative.

The ice cliff and sole of the glacier is free of basal debris and only clean "white" ice was observed.

Very little encrusting biota were present on the muddy sea floor but sea cucumbers were present on the sea floor under the sole of the ice cliffs.