Ordovician - Cambrian unnamed sedimentary rocks

Ordovician - Cambrian unnamed sedimentary rocks
State Maine
Name Ordovician - Cambrian unnamed sedimentary rocks
Geologic age Ordovician - Cambrian
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone (Bed)W - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite; GS - Greenschist facies; Protolith Q - Interbedded pelite and sandstone
Sedimentary > Clastic > Sandstone (Bed)W - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite; GS - Greenschist facies; Protolith Q - Interbedded pelite and sandstone
Comments W - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite; Protolith Z - Melange
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 Aroostook - Penobscot - Piscataquis - Washington