New publication: Geologic map of Chiginagak volcano

Chignagak volcano. Photo by Willie Scott, August 24, 2008.

A newly published geologic map, map report, and its associated GIS files is available for download here. Chiginagak volcano is a small volcanic center on the Alaska Peninsula, with historical observations of fumarolic activity, and a 2005 noneruptive summit heating event and subsequent ice melt, lahar, acid flood, and sulfuric-acid-aerosol release.