Minnesota River #2 in the Central and Southwest

Minnesota River

Basement domain in the Central and Southwest

Geologic information

Region	Central and Southwest
Crust	Type: Sialic protocontinent Formation age: 3600-3000 Ma
Notes	Cratonized ~2500 Ma

Geographic extent

Antrim, Charlevoix, Crawford, Delta, Dickinson, Gogebic, Grand Traverse, Houghton, Iron, Kalkaska, Leelanau, Menominee, Ontonagon, Otsego, Wabasha, Adams, Ashland, Barron, Brown, Buffalo, Chippewa, Clark, Door, Dunn, Eau Claire, Florence, Forest, Iron, Jackson, Juneau, Kewaunee, La Crosse, Langlade, Lincoln, Marathon, Marinette, Menominee, Monroe, Oconto, Oneida, Outagamie, Pepin, Pierce, Portage, Price, Rusk, Sawyer, Shawano, Taylor, Trempealeau, Vilas, Washburn, Waupaca, Wood

Bibliographic references

Sims, P.K., Kisvarsanyi, E.B., and Morey, G.B., 1987, Geology and metallogeny of Archean and Proterozoic basement terranes in the northern midcontinent, U.S.A.—An overview: U.S. Geological Survey Bulletin 1815, 51 p.Hoffman, P.F., 1988, United plates of America, the birth of a craton—Early Proterozoic assembly and growth of Laurentia: Annual Reviews of Earth and Planetary Sciences: v. 16, p. 543–603.Bickford, M.E., Wooden, J.L., and Bauer, R.L., 2006, SHRIMP study of zircons from early Archean rocks in the Minnesota River Valley—Implications for the tectonic history of the Superior Province: Geological Society of America Bulletin, v. 118, p. 94–108; doi: 10.1130/B25741.1.Schmitz, M.D., Bowring, S.A., Southwick, D.L., Boerboom, T.J., and Wirth, K.R., 2006, High-precision U-Pb geochronology in the Minnesota River Valley subprovince and its bearing on the Neoarchean to Paleoproterozoic evolution of the southern Superior Province: Geological Society of America Bulletin, v. 118, p. 82–93; doi: 10.1130/B25725.1.