Volcano Live
volcanolive.com
Murphy Volcano | John Seach
Marie Byrd Land, West Antarctica
75.33 S, 100.75 W.
summit elevation 2703 m
shield volcano
Murphy volcano is located in Antarctica, on the Pacific coast of the west Antarctic rift system. The volcano contains an atypical structure. It contains an assemblage of recycled marine microfossils derived from marine basins in the interior of West Antarctica.
Murphy volcano has a base diameter of 35 km, and a vertical relief of 2300 m. Its volume is estimated at 580 cubic km. The volcano is about 100 times the volume of the largest tabletop mountain in Iceland.
Eruptions of Murphy volcano
The shield building phase at Murphy volcano took plave 8.3 million years ago. Sechrist Peak tuff cone was erupted 900,000 years ago.
Further reading
LeMasurier, W.E., Harwood, D.M. and Rex, D.C., 1994. Geology of Mount Murphy Volcano: An 8-my history of interaction between a rift volcano and the West Antarctic ice sheet. Geological Society of America Bulletin, 106(2), pp.265-280.
Murphy Volcano Eruptions
No recent eruptions.