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Data on Holocene tephra (volcanic ash) deposits in the Alaska Peninsula and lower Cook Inlet region of the Aleutian volcanic arc, Alaska

January 1, 1999

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.

Publication Year 1999
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