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Alaska geologic unit Tswf

Stillwater Formation(?)
NSAclass820
LabelTswf
Geologic settingSedimentary, undivided
Lithology
SiltstoneBed(Major) < Clastic < Sedimentary
Absolute age33.9 Ma to 55.8 Ma
Age typeRelative
Minimum agePhanerozoic > Cenozoic > Tertiary-Paleogene > Eocene
Maximum agePhanerozoic > Cenozoic > Tertiary-Paleogene > Eocene
Geographic extentCordova, Bering Glacier
References
Plafker, George, in prep, Geology of Bering Glacier and Icy Bay quadrangles: U.S. Geological Survey Miscellaneous Investigations Map I-___, scale 1:250,000, in press
Winkler, G.R., and Plafker, George, 1993, Geologic map of the Cordova and Middleton Island quadrangles, southern Alaska: U.S. Geological Survey Miscellaneous Investigations Map I-1984, scale 1:250,000.

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URL: http://mrdata.usgs.gov/geology/state/ak/akgeo-unit.php?unit=820
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