Sample: 81ARj 38a
Sample ID: | 81ARj 38a [1] |
Station ID: | 81ARj 38 |
AT Num: | |
Volcano: | Kialagvik |
Possible source: | |
Eruption: | |
Collector: | Riehle, J. R. |
Date sampled: | 1981-01-01 |
Sample type 1: | Other |
Color: | |
Final unit: | |
Text Description: | Fine-grained, flow-foliated, porphyritic dacite clast in ash flow. Contains phenocrysts of zoned plagioclase (An 60) and quartz and lithic fragments. Lithic fragments are plagioclase and clinopyroxene or only plagioclase; no mafic minerals are present among the phenocrysts or in the groundmass. Aggregates of very fine grained opaque minerals in pseudomorphs after hornblende (?) |
Sample Location: |