State | Maine |
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Name | Silurian undifferentiated pelites and sandstones |
Geologic age | Silurian |
Lithologic constituents |
Major
Metamorphic > Metasedimentary > Metaclastic > Slate (Zeolitic (prehnite-pumpellyite), Greenschist)W - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite; GS - Greenschist facies; Protolith Q - Interbedded pelite and sandstone
Sedimentary > Clastic > SandstoneW - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite; GS - Greenschist facies; Protolith Q - Interbedded pelite and sandstone
Minor
Sedimentary > Clastic > Sandstone > GraywackeW - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite; GS - Greenschist facies; Protolith Q - Interbedded pelite and sandstone
Sedimentary > Clastic > ConglomerateW - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite; GS - Greenschist facies; Protolith Q - Interbedded pelite and sandstone
|
Comments | GS - Greenschist facies; Protolith A - Pelite |
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.Neuman, R.B., 1967, Bedrock geology of the Shin Pond and Stacyville quadrangles, Penobscot County, Maine, IN Shorter contributions to general geology, 1965: U.S. Geological Survey Professional Paper, 524-I, p. I1-I39.https://pubs.er.usgs.gov/publication/pp524I US Geological Survey, 2005, National Geologic Map Database, Geologic Names Lexicon "GEOLEX", http://ngmdb.usgs.gov/Geolex/. |
NGMDB product | |
Counties | Aroostook - Penobscot - Piscataquis |