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Sample info : WR2-1c
Sample ID:WR2-1c
Station ID:WR2-1c
Latitude:62.00572
Longitude:-144.01935
Datum:NAD83
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
Text Description:
Black hypersthene augite andesite. Sample of andesite flow from the rim of the active crater located on the south margin of the caldera. The flow is composed of plagioclase phenocryst, microphenocrysts of plagioclase, augite and hypersthene, surrounded by a matrix of glass. The glassy mesostasis also includes disseminated magnetite grains and microlites of pyroxene.

References:
The reconnaissance petrology of andesites from the Mount Wrangell Caldera, Alaska


Sample Location

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Page modified: August 7, 2013 07:43
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