Sample: Riehle_1987_AN_7B
| Sample ID: | Riehle_1987_AN_7B [1] | ||||||||||
| Station ID: | Riehle_1987_AN_7 | ||||||||||
| AT Num: | |||||||||||
| Volcano: | Aniakchak | ||||||||||
| Possible source: | Aniakchak | ||||||||||
| Eruption: | Aniakchak CFE II | ||||||||||
| Collector: | Riehle, J. R. | ||||||||||
| Date sampled: | |||||||||||
| Sample type 1: | Tephra Fall | ||||||||||
| Color: | |||||||||||
| Final unit: | |||||||||||
| Text Description: | 0-30 cm thick deposit. Dominantly clear to pale gray glass with some brown streaks; clast shapes range from fibrous pumice to curving platelets; estimated 99% glass, remainder is plagioclase and pyroxene>amphibole>opaque=apatite=zircon (?). | ||||||||||
| Sample Location: |
      Great Sitkin Spurr Legend ✕
30 km 20 mi |
References Cited
[1] The Aniakchak tephra deposit, a late Holocene marker horizon in western Alaska, 1987
Riehle, J. R., Meyer, C. E., Ager, T. A., Kaufman, D. S., and Ackerman, R. E., 1987, The Aniakchak tephra deposit, a late Holocene marker horizon in western Alaska: in Hamilton, T. D. and Galloway, J. P., (eds.), Geologic studies in Alaska by the U.S. Geological Survey during 1986, U.S. Geological Survey Circular C 0998, p. 19-22.
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