Alkali feldspar granite of 1835 Ma age group

Red to pink, medium-grained leucocratic alkali feldspar granite; contains miarolitic cavities; biotite is altered to opaque oxide minerals; contains fluorite locally. Called red granite previously (Sims, 1990). Exposed in both Pembine-Wausau and Marshfield terranes.
State Wisconsin
Name Alkali feldspar granite of 1835 Ma age group
Geologic age Early Proterozoic
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Alkali-feldspar-granite (Stock or pipe)Red to pink, medium-grained leucocratic alkali feldspar granite; contains miarolitic cavities; biotite is altered to opaque oxide minerals; contains fluorite locally. Called red granite previously (Sims, 1990). Exposed in both Pembine-Wausau and Marshfield terranes.
Comments Exposed in both Pembine-Wausau and Marshfield terranes. Sims, P.K., 1990, Geologic map of Precambrian rocks of Eau Claire and Green Bay 1o x 2o quadrangles, central Wisconsin: U.S. Geological Survey Miscellaneous Investigations Series Map I-1925, scale= 1:250,000.
References
NGMDB product
Counties Clark - Jackson - Lincoln - Marathon - Wood