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Silurian unnamed volcanic and sedimentary rocks

Silurian unnamed volcanic and sedimentary rocks
StateMaine
NameSilurian unnamed volcanic and sedimentary rocks
Geologic ageSilurian
Original map labelSuvs
CommentsW - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite Protolith W - Mafic to felsic volcanic rocks
Primary rock typemafic volcanic rock
Secondary rock typefelsic volcanic rock
Other rock typessedimentary rock
Lithologic constituents
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 coverageAroostook - Penobscot

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