Andrus Volcano
Updated: 19 abr. 2024 19:43 GMT -
Shield volcanoes 2978 m / 9,770 ft
West Antarctica, , -75.8°S / -132.33°W
Current status: (probably) extinct (0 out of 5)
West Antarctica, , -75.8°S / -132.33°W
Current status: (probably) extinct (0 out of 5)
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Erupciones del volcán Andrus: unknown, no recent eruptions
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Background
Three coalescing trachytic shield volcanoes with a combined volume of 252 cu km formed during the Miocene along a north-south line in the Ames Range of western Marie Byrd Land. The youngest and best exposed of the three is Mount Andrus, the southernmost volcano, where late-stage volcanic activity resumed during the late-Pleistocene or Holocene (Gonzalez-Ferran and Gonzalez-Bonorino 1972, LeMasurier and Thomson 1990). A distinct 4.5-km-wide caldera truncates the summit of Mount Andrus. Weak fumarolic activity was observed in 1977 at Mount Kauffman, the northernmost volcano, which also has a morphologically distinct 3-km-wide summit caldera.---
Smithsonian / GVP volcano information
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