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Mineral Resources On-Line Spatial Data

Silurian undifferentiated sandstones

Silurian undifferentiated sandstones, in part of the Allsbury Formation and in part unnamed
StateMaine
NameSilurian undifferentiated sandstones
Geologic ageSilurian
Original map labelSsu
CommentsGS - Greenschist facies W - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite Protolith D - Lithic sandstone
Primary rock typesandstone
Secondary rock type
Other rock types
Lithologic constituents
Major
Sedimentary > Clastic > SandstoneGS - Greenschist facies W - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite 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 coverageAroostook - Penobscot

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