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Menominee and Chocolay Groups, undivided

Menominee and Chocolay Groups, undivided - Mapped where units are too thin to show separately on map
StateMichigan
NameMenominee and Chocolay Groups, undivided
Geologic ageEarly Proterozoic
Original map labelXmmc
Commentscontinental margin assemblage (north of Niagara Fault)
Primary rock typemetasedimentary rock
Secondary rock typemetavolcanic rock
Other rock types
Lithologic constituents
Major
Metamorphic > Metaigneous > MetavolcanicMenominee and Chocolay groups, undivided
Metamorphic > MetasedimentaryMenominee and Chocolay groups, undivided
Map references
Sims, P.K., 1992, Geologic map of Precambrian rocks, southern Lake Superior region, Wisconsin and northern Michigan: U.S. Geological Survey Miscellaneous Investigations Map I-2185, scale= 1:500,000
Unit references
Sims, P.K., 1992, Geologic map of Precambrian rocks, southern Lake Superior region, Wisconsin and northern Michigan: U.S. Geological Survey Miscellaneous Investigations Map I-2185, scale= 1:500,000
Geographic coverageDickinson - Iron

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