Shell Glacier
Encyclopedia
Shell Glacier is a western lobe of the Mount Bird
icecap. It descends steeply in the valley
north of Trachyte Hill
and Harrison Bluff
in the center of the ice-free area on the lower western slopes of Mount Bird, Ross Island
. Mapped and so named by the New Zealand Geological Survey Antarctic Expedition
(NZGSAE), 1958–59, because of the marine shell content of the moraines.
Mount Bird
Mount Bird is a stratovolcano, high, standing about south of Cape Bird, the northern extremity of Ross Island. It was mapped by the British National Antarctic Expedition, 1901–04, under Robert Falcon Scott, and apparently named by them after Cape Bird. Shell Glacier and Endeavour Piedmont Glacier...
icecap. It descends steeply in the valley
Valley
In geology, a valley or dale is a depression with predominant extent in one direction. A very deep river valley may be called a canyon or gorge.The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys...
north of Trachyte Hill
Trachyte Hill
Trachyte Hill is a prominent hill, 470 m, just south of Shell Glacier in the center of the ice-free area on the lower west slopes of Mount Bird on Ross Island. Mapped and so named by the New Zealand Geological Survey Antarctic Expedition , 1958–59, because of the rock type composing the hill....
and Harrison Bluff
Harrison Bluff
Harrison Bluff is a pale-colored trachyte headland forming the seaward termination of Trachyte Hill and marking the southern end of McDonald Beach on the western side of Mount Bird, Ross Island. Many skuas nest on the bluff. A survey station marked by a rock cairn was placed on the top of the...
in the center of the ice-free area on the lower western slopes of Mount Bird, Ross Island
Ross Island
Ross Island is an island formed by four volcanoes in the Ross Sea near the continent of Antarctica, off the coast of Victoria Land in McMurdo Sound.-Geography:...
. Mapped and so named by the New Zealand Geological Survey Antarctic Expedition
New Zealand Geological Survey Antarctic Expedition
The New Zealand Geological Survey Antarctic Expedition describes a series of scientific explorations of the continent Antarctica. The expeditions were notably active in 1957-58 and again in 1958-59. The 1957-58 expedition went to the Ross Dependency and named the Borchgrevink Glacier...
(NZGSAE), 1958–59, because of the marine shell content of the moraines.