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  5. Michigan geologic units

Geologic units in Lake county, Michigan

Additional scientific data in this geographic area

Michigan Formation (Mississippian) at surface, covers 44 % of this area

Michigan Formation

Saginaw Formation (Pennsylvanian) at surface, covers 35 % of this area

Saginaw Formation

Bayport Limestone (Mississippian) at surface, covers 10 % of this area

Bayport Limestone

Marshall Sandstone (Mississippian) at surface, covers 9 % of this area

Marshall Sandstone

Coldwater Shale (Mississippian) at surface, covers 1 % of this area

Coldwater Shale

Red beds (Jurassic) at surface, covers 0.8 % of this area

Red beds