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Badwater Greenstone

Badwater Greenstone - Dark-greenish-gray, pillowed to massive tholeiitic basalt and pyroclastic rocks. Correlated with the Hemlock Formation on basis of geology and similarity in chemical composition.
StateWisconsin
NameBadwater Greenstone
Geologic ageEarly Proterozoic
Original map labelXb
CommentsContinental margin assemblage (north of Niagara Fault).
Primary rock typebasalt
Secondary rock typepyroclastic
Other rock types
Lithologic constituents
Major
Igneous > Volcanic > Mafic-volcanic > Basalt (Flow)
Igneous > Volcanic > Mafic-volcanic > Basalt (Pyroclastic)
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 coverageFlorence - Forest - Vilas

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