| State | Maine |
|---|---|
| Name | Silurian Hardwood Mountain Formation |
| Geologic age | Silurian |
| Lithologic constituents |
Major
Sedimentary > Clastic > ConglomerateGS - Greenschist facies; Protolith S - Calcareous pelite
Sedimentary > Clastic > SiltstoneGS - Greenschist facies; Protolith S - Calcareous pelite
Sedimentary > Clastic > MudstoneGS - Greenschist facies; Protolith S - Calcareous pelite
Minor
Metamorphic > Metasedimentary > Metaclastic > Slate (Greenschist)GS - Greenschist facies; Protolith S - Calcareous pelite
Incidental
Sedimentary > Carbonate > LimestoneGS - Greenschist facies; Protolith S - Calcareous pelite
Sedimentary > Clastic > SandstoneGS - Greenschist facies; Protolith S - Calcareous pelite
|
| Comments | GS - Greenschist facies; Protolith W - Mafic to felsic volcanic rocks |
| 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.Boucot, A.J., 1961, Stratigraphy of the Moose River synclinorium, IN Contributions to general geology, 1959: U.S. Geological Survey Bulletin, 1111-E, p. E153-E188.https://pubs.er.usgs.gov/publication/b1111E Moench, R.H., Boone, G.M., Bothner, W.A., Boudette, E.L., Hatch, N.L., Jr., Hussey, A.M., III, Marvinney, R.G. and Aleinikoff, J.N., 1995, Geologic map of the Sherbrooke-Lewiston area, Maine, New Hampshire, and Vermont, United States, and Quebec, Canada: U.S. Geological Survey Miscellaneous Investigations Series Map, I-1898-D, 56 p., 2 sheets, scale 1:250,000, Prepared in cooperation with the Maine Geological Survey and the New Hampshire Geological Survey.https://pubs.er.usgs.gov/publication/i1898D Boucot, A.J., 1969, Geology of the Moose River and Roach River synclinoria, northwestern Maine: Maine Geol. Surv., Bull. 21, 123 p.US Geological Survey, 2005, National Geologic Map Database, Geologic Names Lexicon "GEOLEX", http://ngmdb.usgs.gov/Geolex/. |
| NGMDB product | |
| Counties | Franklin - Somerset |