Sample: 94SJP88A
Sample ID: | 94SJP88A [1] |
Station ID: | 94SJP88D |
AT Num: | |
Volcano: | Skookum Creek |
Possible source: | |
Eruption: | |
Collector: | Preece, S. J. |
Date sampled: | 1994-00-00 |
Sample type 1: | Lava |
Color: | |
Final unit: | |
Text Description: | Outcrop of 10-25' thick basaltic andesite flows on the east side of Goat Creek. Fine grained, vesicular, holocrystalline, seriate porphyritic, oxidized with a matrix of mesostasis, plagioclase, and microlites. Plagioclase phenocrysts (An47-An62) are up to 2.3 mm, and occasionally have sieve textured zones, normal zoning, and/or resorbed edges. Olivine phenocrysts are up to 1.05 mm, and have black coronas, resorption embayments and alteration. May be some pyroxene present. |
Sample Location: |