Sample: 38
| Sample ID: | 38 [1] |
| Station ID: | 38 |
| AT Num: | |
| Volcano: | Yantarni |
| Possible source: | |
| Eruption: | |
| Collector: | Unknown, Unknown |
| Date sampled: | |
| Sample type 1: | Lava |
| Color: | |
| Final unit: | |
| Text Description: | Sample of dome consisting of pilotaxitic, hornblende-bearing andesite containing rare quartz phenocrysts(?). (Texture: Porphyry; groundmass <0.1 mm, foliated, plagioclase>orthopyroxene=hornblende=opaque; phenocrysts bimodal, 0.1 to 3 mm; hornblende reacting to plagioclase/clinopyroxene/opaque. Alteration: None) |
| 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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