Sample: 41
| Sample ID: | 41 [1] |
| Station ID: | 41 |
| AT Num: | |
| Volcano: | Yantarni |
| Possible source: | |
| Eruption: | |
| Collector: | Unknown, Unknown |
| Date sampled: | |
| Sample type 1: | |
| Color: | |
| Final unit: | |
| Text Description: | Sample of cone-building deposit. Texture: Porphyry; groundmass <0.1 mm, massive and microcrystalline; microphenocrysts of plagioclase >> clinopyroxene > orthopyroxene = hornblende; phenocrysts to 2 mm; hornblende heavily oxidized. Alteration: Zeolites in groundmass |
| Sample Location: |
References Cited
[1] Petrography, chemistry, and geologic history of Yantarni volcano, Aleutian volcanic arc, Alaska, 1987
Riehle, J. R., Yount, M. E., and Miller, T. P., 1987, Petrography, chemistry, and geologic history of Yantarni volcano, Aleutian volcanic arc, Alaska: U.S. Geological Survey Bulletin 1761, 27 p., 1 sheet, scale 1:63,360.
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