| State | Maine |
|---|---|
| Name | Cambrian Hurricane Mountain Formation, metapyroxenite |
| Geologic age | Cambrian |
| Lithologic constituents | Major
Metamorphic > Metaigneous > Metaintrusive > Metaultramafic > Metapyroxenite (Greenschist)metapyroxenite; Protolith - ultramafic rocks; GS - Greenschist facies
|
| Comments | Consists of dark, rusty-weathering, siliceous, scaly slate or schist, with flaser structure and polymict fragments ranging in size from a few millimeters up to (in ME) several hundred meters. Considered a melange consisting of metasedimentary, felsic and mafic metavolcanic, and ultramafic rocks. Unit description from USGS GEOLEX website (ME078). GS - Greenschist facies; Protolith 9c - Ultramafic 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.US Geological Survey, 2005, National Geologic Map Database, Geologic Names Lexicon "GEOLEX", http://ngmdb.usgs.gov/Geolex/. |
| NGMDB product | |
| Counties | Somerset |