This site provides information about the number, thickness, and grainsize of Holocene volcanic ash deposits at 50 localities in the eastern Aleutian volcanic arc. In addition, the major-element compositions of the glasses separated from more than 350 samples of tephra from these localities, determined by electron microprobe, are presented as a basis for correlating samples. Where known with reasonable certainty, the source of an analyzed sample is also identified for use in comparative studies of magma chemistry.
Citation Information
Publication Year | 1999 |
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Title | Data on Holocene tephra (volcanic ash) deposits in the Alaska Peninsula and lower Cook Inlet region of the Aleutian volcanic arc, Alaska |
DOI | 10.3133/ofr99135 |
Authors | J.R. Riehle, C. E. Meyer, Ronny T. Miyaoka |
Publication Type | Report |
Publication Subtype | USGS Numbered Series |
Series Title | Open-File Report |
Series Number | 99-135 |
Index ID | ofr99135 |
Record Source | USGS Publications Warehouse |
USGS Organization | Alaska Volcano Observatory |