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Sams Creek Metabasalt

Sams Creek Metabasalt - Altered basaltic flows, some amygdaloidal; green, schistose, containing hornblende, epidote, chlorite, and quartz.
StatePennsylvania
NameSams Creek Metabasalt
Geologic ageProbably lower Paleozoic
Original map labelXsc
CommentsDigital map differences from 1980 printed map: name and map symbol changed from (Wissahickon Formation, metavolcanics) (Xwv).
Primary rock typemeta-basalt
Secondary rock type
Other rock types
Lithologic constituents
Major
Metamorphic > Metaigneous > Metavolcanic > Metabasaltmetabasalt - altered basaltic flows, some amygdaloidal; green, schistose, containing hornblende, epidote, chlorite, and quartz
Map references
Pennsylvania Bureau of Topographic and Geologic Survey, Department of Conservation and Natural Resources, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map. Retrieved from internet 9-30-2004; <http://www.dcnr.state.pa.us/topogeo/map1/bedmap.aspx> DL Data: pageoexp.zip
Unit references
Berg, T. M., Edmunds, W. E., Geyer, A. R., and others, compilers, 1980, Geologic map of Pennsylvania: Pennsylvania Geological Survey, 4th ser., Map 1, 2nd ed., 3 sheets, scale 1:250,000.
Pennsylvania Bureau of Topographic and Geologic Survey, Department of Conservation and Natural Resources, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map. Retrieved from internet 9-30-2004; <http://www.dcnr.state.pa.us/topogeo/map1/bedmap.aspx> DL Data: pageoexp.zip
Geographic coverageLancaster - York

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