Gravel section here, may be fluvial, but could be flood. Stratification is based on clast size, where center band (see photos) is more coarse. Below, coarse clasts seem absent, and there is a faint hint of cross-bedding. Largest clast size ~10 cm. Above, clasts are less well stratified, but this may be the result of slopewash over the top. Coarse layer is ~1 m thick. Above entire gravel section is loess and scoria/clay stuff. N/A
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.