Sample: 24
| Sample ID: | 24 [1] |
| Station ID: | 24 |
| AT Num: | |
| Volcano: | Yantarni |
| Possible source: | |
| Eruption: | |
| Collector: | Unknown, Unknown |
| Date sampled: | |
| Sample type 1: | Lava |
| Color: | |
| Final unit: | |
| Text Description: | Texture: Porphyry; groundmass <0.1 mm, plagioclase >> chlorite + mica > clinopyroxene = opaque; clinopyroxene rims on orthopyroxene phenocrysts; originally vitric? Alteration: Zeolite/calcite/chlorite+mica as vugs in groundmass and as replacement of pyroxene phenocrysts and lithic |
| 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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