Pink and gray, strongly foliated, medium- to coarse-crystalline, locally pegmatitic, biotite-muscovite granite and gneissic granite.
State South Dakota
Name Granite
Geologic age Late Archean
Lithologic constituents
Igneous > Plutonic > Granitic > Granitebiotite-muscovite granite and gneissic granite

Martin, J.E., Sawyer, J.F., Fahrenbach, M.D., Tomhave, D.W., and Schulz, L.D., 2004, Geologic Map of South Dakota: South Dakota Geological Survey, GM 10, scale 1:500,000.

NGMDB product
Counties Lawrence - Pennington