Kinnikinic Formation

Very light gray, massive quartzite with local lenses of dolomite and dolomitic shale. Marine shelf. Thickness as much as 245 m (804 ft).
State Montana
Name Kinnikinic Formation
Geologic age Ordovician
Lithologic constituents
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Sedimentary > Clastic > Mudstone > Shale (Lens)
Sedimentary > Carbonate > Dolostone (Lens)

Vuke, S.M., Porter, K.W., Lonn, J.D., and Lopez, D.A., 2007, Geologic Map of Montana - Compact Disc: Montana Bureau of Mines and Geology: Geologic Map 62-C, 73 p., 2 sheets, scale 1:500,000. This map was digitized in 2012 as a result of a contract between the U.S. Geological Survey and the Montana Bureau of Mines and Geology.

NGMDB product
Counties Beaverhead