Subject: Geology / Temporal Coverage: Ordovician / Language: English - Yale University Library GeoBlacklight Search Results

1. Lithofacies and stratigraphic nomenclature of part of the Upper Ordovician section of Kentucky [cartographic material]

1979. 2014-09-10T17:26:37Z. 2021-06-01T21:36:14Z. Weir, Gordon W. (Gordon Whitney), 1922-2011. U.S. Geological Survey. English. Public. Kentucky and Kentucky. Ordovician and From 425 to 500 million years ago.

2. Regional bedrock geology of the Bellefontaine, Ohio 30 x 60 minute quadrangle

1995. 2008-11-11T14:59:59Z. 2011-03-28T23:37:56Z. Swinford, E. Mac. Ohio Dept. of Natural Resources, Division of Geological Survey. English. Public. Ohio and Bellefontaine Region. Ordovician, Silurian, and Quaternary.

3. 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.

4. Stratigraphic framework of Cambrian and Ordovician rocks in the Appalachian Basin from Sequatchie County, Tennessee, through eastern Kentucky, to Mingo County, West Virginia

2008. 2008-11-11T15:36:27Z. 2012-04-26T14:16:08Z. Ryder, Robert T. U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services. English. Public. Appalachian Basin and Appalachian Basin. Cambrian and Ordovician.

5. Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian basin from Richland County, Ohio to Rockingham County, Virginia

1991. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Appalachian Basin. Cambrian and Ordovician.

6. The Maquoketa Formation (Upper Ordovician) in Iowa [cartographic material]

1971. 2018-04-20T18:43:31Z. 2021-05-04T22:29:48Z. Parker, Mary Combs. Iowa Geological Survey. English. cartographic image. Public. Iowa and Iowa. Ordovician and From 425 to 500 million years ago.

7. Thickness and lithology of Upper Ordovician and Lower and Middle Silurian rocks in the Michigan Basin

1948. 2018-01-30T14:30:37Z. 2018-01-30T14:30:37Z. Cohee, George Vincent, 1907-. U.S. Geological Survey. English. cartographic image. Public. Michigan Basin (Mich. and Ont.), North America, and Michigan Basin. Ordovician, Silurian, and From 405 to 500 million years ago.

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1. Lithofacies and stratigraphic nomenclature of part of the Upper Ordovician section of Kentucky [cartographic material]

2. Regional bedrock geology of the Bellefontaine, Ohio 30 x 60 minute quadrangle

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

4. Stratigraphic framework of Cambrian and Ordovician rocks in the Appalachian Basin from Sequatchie County, Tennessee, through eastern Kentucky, to Mingo County, West Virginia

5. Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian basin from Richland County, Ohio to Rockingham County, Virginia

6. The Maquoketa Formation (Upper Ordovician) in Iowa [cartographic material]

7. Thickness and lithology of Upper Ordovician and Lower and Middle Silurian rocks in the Michigan Basin

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