Sample: 73AM31
| Sample ID: | 73AM31 [1] |
| Station ID: | 73AM31 |
| AT Num: | |
| Volcano: | Mafic Knob 500 |
| Possible source: | |
| Eruption: | |
| Collector: | Miller, T. P. |
| Date sampled: | 1973-01-01 |
| Sample type 1: | Lava |
| Color: | |
| Final unit: | |
| Text Description: | Two-pyroxene vesicular andesite. Phenocrysts of plagioclase (19%), hornblende (2%), and trace clinopyroxene, orthopyroxene, olivine, and quartz in a microlite-rich groundmass (60%). |
| 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