Sample: 72-ARh-338


Sample ID: 72-ARh-338 [1]
Station ID: 72-ARh-338
AT Num:
Volcano:
Possible source:
Eruption:
Collector: Richter, D. H.
Date sampled: 1972-00-00
Sample type 1: Lava
Color:
Final unit:
Text Description: Rhyolite dome. Light-colored dome with rubble carapace. Rocks are light gray to buff and fine-grained, and contain sparse altered hornblende and rare hypersthene phenocrysts in a dense feldspar-rich hyalopilitic and pilotaxitic matrix.
Sample Location:

References Cited

[1] Geologic map of the Nabesna A-5 quadrangle, Alaska, 1976

Richter, D.H., and Smith, R.L., 1976, Geologic map of the Nabesna A-5 quadrangle, Alaska: US Geological Survey Geologic Quadrangle Map 1292, 1 sheet, available at http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=13027 .