Sample: 05MZPK-09
| Sample ID: | 05MZPK-09 [1] |
| Station ID: | 05MZPK-09 |
| AT Num: | |
| Volcano: | Makushin |
| Possible source: | |
| Eruption: | |
| Collector: | Zimmer, Mindy |
| Date sampled: | 2005-01-01 |
| Sample type 1: | Tephra Fall |
| Color: | |
| Final unit: | |
| Text Description: | (Angela’s Cone): Sample collected by M. Zimmer and A. Roach. Loosely coherent tephra from pyroclastic flow at Angela’s Cone, a newly-discovered, parasitic cinder cone on southern flank of Makushin volcano. Angela’s Cone is almost entirely dissected by ice, streams, and weathering, and shows no signs of recent activity. Groundmass is red-orange and extremely altered, with 1-3 mm dark clasts evenly distributed throughout (~30%). Phenocrysts of olivine and clinopyroxene, with 2 mm crystal clots. Olivines contain oxides, and lighter and darker green clinopyroxene populations were observed. Some olivines have an orange tint and are likely altered. Yielded olivine- hosted melt inclusions. |
| Sample Location: |