Mount Andrus

Mount Andrus is a shield volcano 3.2 km (2 mi) SE of Mount Boennighausen in the SE extremity of Ames Range, in Marie Byrd Land, Antarctica. Mapped by USGS from surveys and U.S. Navy air photos, 1964–68. Named by US-ACAN for Lt. Carl H. Andrus, US Navy, medical officer and Officer-in-Charge of Byrd Station in 1964.[1]

Mount Andrus
Aerial view of the Ames Range. Mount Andrus is the first mount from the left, excluding Mount Berlin, which can be seen isolated far away
Highest point
Elevation2,978 m (9,770 ft)
Coordinates75°48′0″S 132°18′0″W
Geography
Parent rangeAmes Range
Geology
Age of rockmiddle Miocene - Holocene
Mountain typeShield volcano
Volcanic fieldMarie Byrd Land Volcanic Province
Last eruptionUnknown

Andrus has a 4.5 km-wide caldera at its summit.[1] The westward face of the mountain is drained by the Coleman Glacier, with significant crevassing present. While the age of Mt. Andrus is not well known it is one of the oldest trachytic shield volcanoes in Marie Byrd Land, similar in age to Mount Hampton.[1]

Topographic map of the Ames Range (1:250,000 scale) from USGS Mount Kosciusko

See also

References

  1. Le Masurier, W. E. (1990). "B. 12. Ames Range". In Le Masurier, W. E.; Thomson, J.W. (eds.). Volcanoes of the Antarctic Plate and Southern Oceans. Antarctic Research Series vol 48. Washington, DC: American Geophysical Union. pp. 216–220. doi:10.1029/AR048. ISBN 9781118664728.


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