Heterogeneity, Correlatives, and Proposed Stratigraphic Nomenclature of Hayes Tephra Set H, Alaska
Quaternary Research
By: J.R. Riehle
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
Several Holocene tephra deposits of Hayes volcano constitute a marker horizon in southern and east-central Alaska. Their identification is aided by high amphibole/pyroxene ratio and biotite in trace amounts, unique among Holocene tephra deposits of the region. However, correlations are obscured by chemical heterogeneity of the glass which occurs at a scale less than the size of a lapilli. Single-shard analyses confirm that the heterogeneity is due neither to fractionation nor to plagioclase microlites. The heterogeneity may be due to mixing of magmas prior to eruption. It is proposed that the deposits be informally called Hayes tephra set H.
Suggested Citation
Riehle, J., 1994, Heterogeneity, Correlatives, and Proposed Stratigraphic Nomenclature of Hayes Tephra Set H, Alaska: Quaternary Research, v. 41, no. 3, p. 285-288, https://doi.org/10.1006/qres.1994.1032.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Heterogeneity, Correlatives, and Proposed Stratigraphic Nomenclature of Hayes Tephra Set H, Alaska |
| Series title | Quaternary Research |
| DOI | 10.1006/qres.1994.1032 |
| Volume | 41 |
| Issue | 3 |
| Publication Date | January 20, 2017 |
| Year Published | 1994 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Quaternary Research |
| First page | 285 |
| Last page | 288 |