Unit T2; Layer U-II; Stratified, gray, alternating coarse and fine, pumice and sandy layers, red lithics common throughout. 11 cm. Reversely graded from gray fine lapilli to coarse gray fall, well sorted, gray pumice dominates. Sample is a bulk sample from the top 6 cm.
The 1931 eruption of Aniakchak volcano, Alaska
This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137
Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.