Fisher airfall and PF found (?). Base is 1 cm lt. Grey ash (upper 1/2 has pinkish tint), then 1cm tan pumice, 11cm PF(?), then 16 cm drk grey airfall with thin band of fine grained material ~2/3 way up. LL=24x15mm. Below fall layers is orangey brown clayey soil (25cm), which grades into alluvial(whitish grey) through ~15 cm of brn/drk tan clay. Alluvial stuff is > 5m thick and locally well indurated. Bulk sample of upper fall layer (including both coarse and fine layers)
Volcanism on Unimak Island, Alaska, USA: a special focus on Shishaldin and Fisher volcanoes
This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G19AC00060 and G19AC00171.
Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.