Sample: 94SJP105B
Sample ID: | 94SJP105B [1] |
Station ID: | 94SJP105B |
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: | Dike-scoria contact where feeder dike (94SJP105A) cuts through vent scoria of a small cinder cone. Fine grained, vesicular, holocrystalline, porphyritic, oxidized with a matrix of mesostasis, plagioclase, and opaque. Plagioclase phenocrysts (An55) are up to 0.25 mm, mostly as small laths; occasional larger grains have sieve textured zones. An altered phase in up to 0.38 mm. |
Sample Location: |