Sample: 94SJP102B
Sample ID: | 94SJP102B [1] |
Station ID: | 94SJP102 |
AT Num: | |
Volcano: | Skookum Creek |
Possible source: | |
Eruption: | |
Collector: | Preece, S. J. |
Date sampled: | 1994-00-00 |
Sample type 1: | Tephra Fall |
Color: | |
Final unit: | |
Text Description: | Remnant of a spatter cone on the east side of Jaeger Mesa. Sample is a bomb out of the agglutinate. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of mesostasis and plagioclase. Sample is oxidized. Plagioclase phenocrysts (An40-An58) are up to 0.9 mm laths. Olivine phenocrysts are up to 0.55 mm and occasionally have a little iddingsite alteration. |
Sample Location: |