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SAMPLE INFO : 79AM75
Sample ID:79AM75
Station ID:79AM75
Latitude:57.745
Longitude:-156.373
Datum:NAD83
Date Sampled:1975-01-01
Sample Type 1:Lava
Field Lithology:Andesite
Text Description:
Porphyritic two-pyroxene andesite. Phenocrysts of plagioclase (37%), orthopyroxene (6%), and clinopyroxene (3%) with trace olivine in a groundmass of pale-brown glass.

References:
Geology of the Ugashik-Mount Peulik volcanic center, Alaska

GEOCHEM DATA