Ordovician Blind Brook Formation

Ordovician Blind Brook Formation
State Maine
Name Ordovician Blind Brook Formation
Geologic age Ordovician
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone (Carbonaceous)W - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite; Protolith C - Sulfidic/carbonaceous pelite
Comments GS - Greenschist facies; E - Epidote-amphibolite facies; AA - Low rank amphibolite facies; Protolith N - Limestone and/or dolostone
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.

Hall, B.A., 1970, Stratigraphy of the southern end of the Munsungun anticlinorium, Maine: Maine Geol. Surv., Bull. 22, 63 p.

NGMDB product
Counties Piscataquis