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SAMPLE INFO : 85CNS38
Sample ID:85CNS38
Station ID:85CNS38
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”; sample PF-38 of Nye and Turner (1990)). From exposure in upper W wall of canyon just west of camp. Small (~1mm) equant plag + larger cpx. Abundant small irregular pore space. Abundant "well cooked" inclusions, some with lots of biotite (mafic schist inclusions?).

General Mineralogy Description:
Small (~1mm) equant plag + larger cpx. Abundant small irregular pore space. Abundant "well cooked" inclusions, some with lots of biotite (mafic schist inclusions?).

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

GEOCHEM DATA