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Precambrian Z Rockport Formation

Precambrian Z Rockport Formation
State Maine
Name Precambrian Z Rockport Formation
Geologic age Precambrian
Comments GS - Greenschist facies AA - Low rank amphibolite facies Protolith I - Conglomerate
Primary rock type conglomerate
Secondary rock type
Other rock types
Lithologic constituents
Major
Sedimentary > Clastic > ConglomerateGS - Greenschist facies AA - Low rank amphibolite facies Protolith I - Conglomerate
Map references
Digital bedrock data downloaded from Maine Office of GIS in September 2005 from http://apollo.ogis.state.me.us/catalog/catalog.asp?state=2&extent=cover#bedrock Bedrock units table (publication date 11/15/2002) downloaded from same site. Permission to redistribute these data granted by Dr. Robert Marvinney, State Geologist of Maine, in September 2006.
Unit 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.