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Ordovician Quimby formation graywacke member

Ordovician Quimby formation graywacke member
StateMaine
NameOrdovician Quimby formation graywacke member
Geologic ageOrdovician
Original map labelOqg
CommentsGS - Greenschist facies Protolith D - Lithic sandstone
Primary rock typegraywacke
Secondary rock type
Other rock types
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone > GraywackeGS - Greenschist facies Protolith D - Lithic sandstone
Map references
Digital bedrock data downloaded from Maine Office of GIS in September 2005 from http://apollo.ogis.state.me.us/catalog/catalog.asp?state=2&extent=cover#bedrock Bedrock units table (publication date 11/15/2002) downloaded from same site. Permission to redistribute these data granted by Dr. Robert Marvinney, State Geologist of Maine, in September 2006.
Unit references
Osberg, P. H., Hussey, A.M., and Boone, G. M., 1985, Bedrock geologic map of Maine: Maine Geological Survey, Dept. of Conserv., scale 1:500,000.
Geographic coverageFranklin - Somerset

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