Author: Cohee, George Vincent, 1907- / Subject: Cambrian Geologic Period / Language: English - Yale University Library GeoBlacklight Search Results

Start Over Author Cohee, George Vincent, 1907- Subject Cambrian Geologic Period Language English

1. Sections and maps of Lower Ordovician and Cambrian rocks in the Michigan Basin, Michigan and adjoining areas

1945. 2018-02-20T15:02:08Z. 2018-02-20T15:02:08Z. Cohee, George Vincent, 1907-. U.S. Geological Survey. English. cartographic image. Public. Michigan Basin (Mich. and Ont.), North America, and Michigan Basin. Ordovician, Cambrian, and From 425 to 570 million years ago.