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Mille Lacs Group and related rocks of the Penokean fold-and-thrust belt; Metagraywacke, metasiltstone, and a variety of schistose rocks metamorphosed to the amphibolite facies

Mille Lacs Group and related rocks of the Penokean fold-and-thrust belt; Metagraywacke, metasiltstone, and a variety of schistose rocks metamorphosed to the amphibolite facies
StateMinnesota
NameMille Lacs Group and related rocks of the Penokean fold-and-thrust belt; Metagraywacke, metasiltstone, and a variety of schistose rocks metamorphosed to the amphibolite facies
Geologic ageEarly Proterozoic
Original map labelPeps
Primary rock typemetasedimentary rock
Secondary rock typeschist
Other rock types
Lithologic constituents
Major
Metamorphic > Schist
Metamorphic > Metasedimentary > Metaclastic > Metasiltstonemetasiltstone
Metamorphic > Metasedimentary > Metaclastic > Metasandstone > Metagraywackemetagraywacke
Map references
Morey, G.B., and Meints, Joyce, 2000, Geologic map of Minnesota - Bedrock Geology: Minnesota Geological Survey, State Map Series, S-20, 3rd edition, scale 1:1,000,000. available online at: http://www.geo.umn.edu/mgs/currentpubs.htm
Unit references
Morey, G.B., and Meints, Joyce, 2000, Geologic map of Minnesota - Bedrock Geology: Minnesota Geological Survey, State Map Series, S-20, 3rd edition, scale 1:1,000,000. available online at: http://www.geo.umn.edu/mgs/currentpubs.htm
Geographic coverageAitkin - Carlton - Crow Wing - Mille Lacs - Pine

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