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Gneissic granite (1,871 +/- 5 Ma)

Gneissic granite (1,871 +/- 5 Ma) - Pale-red, medium- to fine-grained, leucocratic, mylonite gneiss exposed near Neillsville, Wisc.
StateWisconsin
NameGneissic granite (1,871 +/- 5 Ma)
Geologic ageEarly Proterozoic
Original map labelXggr
CommentsMarshfield terrane
Primary rock typegranite
Secondary rock type
Other rock types
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Granitegneissic granite
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 coverageClark

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