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SAMPLE INFO : 85CNS39
Sample ID:85CNS39
Station ID:85CNS39
Datum:NAD83
Date Sampled:1985-01-01
Sample Type 1:Lava
Sample Type 2:Block and Ash juvenile
Text Description:
Sample of juvenile block from block-and-as flows deposited on the debris avalanche formed during flank collapse of ancestral Mt. Spurr (“pyroclastic fan” of Nye and Turner (1990)). Sample PF-39 of Nye and Turner (1990). Prismatic block. Unlike s38 in hand specimen. Plag sparse, larger, tabular. Cpx rare. Check t.s. presence of 1mm equant plag hard to see in hand specimen.

General Mineralogy Description:
Unlike s38 in hand specimen. Plag sparse, larger, tabular. Cpx rare. Check t.s. presence of 1mm equant plag hard to see in hand specimen.

References:
Petrology, geochemistry, and age of the Spurr volcanic complex, eastern Aleutian arc

GEOCHEM DATA