Skookum Creek description and statistics

Type:	Andesite and basaltic andesite flows; dacite and rhyolite domes
Seismically Monitored:	No
Distance:	240 mi (386 km) from Anchorage
Elevation:	7126 ft (2172 m)
Latitude:	62.3996° N
Longitude:	143.1371° W
Quadrangle:	Nabesna
CAVW Number:
Location Map:
Pronunciation:	Sound file

From Miller and Richter (1994): "The Skookum Creek eruptive center is an erosionally dissected complex that may, in part, be as young as Quaternary. It consists principally of a series of rhyolite, rhyodacite, and andesite domes and their associated pyroclastic deposits, with an age of about 3.7 Ma, and an extensive sequence of relatively flat-lying andesite flows, some of which have been dated at 2.8 Ma (Lowe and others, 1982). Both the domes and the flows are intruded by a few rhyodacite and andesitic dikes that appear to originate from a rhyodacite dome near the center of the complex. Relations between the volcanic units of the complex suggest that the flat-lying flows fill a caldera that is defined by the crude arcuate alignment of the domes."