| State | Maine |
|---|---|
| Name | Unnamed volcanic rocks |
| Geologic age | Devonian - Silurian |
| Lithologic constituents | Major
Igneous > Volcanic > Felsic-volcanicU - Unmetamorphosed; GS - Greenschist facies; Protolith W - Mafic to felsic volcanic rocks
Igneous > Volcanic > Mafic-volcanicU - Unmetamorphosed; GS - Greenschist facies; Protolith W - Mafic to felsic volcanic rocks
|
| Comments | GS - Greenschist facies; Protolith Y - Basement |
| 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. |
| NGMDB product | |
| Counties | Somerset - Washington |