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SAMPLE INFO : 95-ASL-2A
Sample ID:95-ASL-2A
Station ID:95-ASL-2
Latitude:62.2
Longitude:-143.16998
Datum:NAD83
Date Sampled:1995-06-00
Sample Type 1:Lava
Sample Type 2:Flow
Text Description:
Located within a small depression characterized by vent facies on a nose at the very southern margin of Jaeger Mesa. 2A is nearly aphyric with the exception of an occasional acicular plagioclase phenocryst up to 3 mm in length. Oxidation is "mottled" throughout the blue-gray groundmass. 2B contains the same few acicular plagioclase phenocrysts, but in a highly vesicular "frothy" matrix. Small rounded clasts of vent material are visible within the sample.

References:
A reconnaissance study of mafic to intermediate intra-arc volcanism in the western Wrangell Volcanic Field, Alaska

SAMPLE LOCATION

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Page modified: August 1, 2017 15:29
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