Sample: 74AM51C
| Sample ID: | 74AM51C [1] |
| Station ID: | 74AM51C |
| AT Num: | |
| Volcano: | Ugashik caldera |
| Possible source: | |
| Eruption: | |
| Collector: | Miller, T. P. |
| Date sampled: | |
| Sample type 1: | Lava |
| Color: | |
| Final unit: | |
| Text Description: | Light-colored very fine-grained hornblende-biotite dacite. Phenocrysts (15%) of plagioclase (14%) and minor biotite and hornblende with trace quartz in a cryptocrystalline felsic groundmass. |
| Sample Location: |
References Cited
[1] Geology of the Ugashik-Mount Peulik volcanic center, Alaska, 2004
Miller, T. P., 2004, Geology of the Ugashik-Mount Peulik volcanic center, Alaska: U.S. Geological Survey Open-File Report 2004-1009, 19 p., 2 sheets, scale 1:63,360.
full-text PDF 1.7 MB
plate 1 PDF 660 KB
plate 2 PDF 142 KB