Gabbro Hills
Encyclopedia
Gabbro Hills is a group of rugged ridges and coastal hills which borders the Ross Ice Shelf
between the Barrett and Gough Glaciers and extends south to Ropebrake Pass
. So named by the Southern Party of New Zealand Geological Survey Antarctic Expedition
(NZGSAE) (1963–64) because of the prevalence of gabbro
, a dark, plutonic rock, in the area.
Ross Ice Shelf
The Ross Ice Shelf is the largest ice shelf of Antarctica . It is several hundred metres thick. The nearly vertical ice front to the open sea is more than 600 km long, and between 15 and 50 metres high above the water surface...
between the Barrett and Gough Glaciers and extends south to Ropebrake Pass
Ropebrake Pass
Ropebrake Pass is a steep, narrow snow pass between the south end of Gabbro Hills and Mount Llano, permitting passage between the Barrett and Gough Glaciers. So named by the Southern Party of New Zealand Geological Survey Antarctic Expedition because of the large number of rope brakes used in...
. So named by the Southern Party of 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) (1963–64) because of the prevalence of gabbro
Gabbro
Gabbro refers to a large group of dark, coarse-grained, intrusive mafic igneous rocks chemically equivalent to basalt. The rocks are plutonic, formed when molten magma is trapped beneath the Earth's surface and cools into a crystalline mass....
, a dark, plutonic rock, in the area.