Subject: Geology, Stratigraphic / Spatial Coverage: Middle West - Yale University Library GeoBlacklight Search Results

1. Equivalent freshwater head and dissolved-solids concentration of water in rocks of Cambrian, Ordovician, and Mississippian age in the northern midcontinent, U.S.A.

1986. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Branch of Distribution. English. Public. Middle West. Cambrian., Ordovician., and Mississippian.

2. Maps showing areal extent of selected Paleozoic shales in the northern midcontinent, U.S.A.

1992. 2002-06-01T04:00:00Z. 2016-05-17T16:22:16Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by Map Distribution. English. cartographic image. Public. Middle West and Middle West. Paleozoic and From 230 to 570 million years ago.

3. Maps showing thickness and limestone-dolostone ratios of selected Paleozoic carbonate units in the northern midcontinent, U.S.A.

1996. 2002-06-01T04:00:00Z. 2016-05-18T18:44:14Z. Geological Survey (U.S.). The Survey ; For sale by U.S. Geological Survey Information Services. English. Public. Middle West. Paleozoic.

4. Precambrian basement map of the northern midcontinent, U.S.A.

1990. 2002-06-01T04:00:00Z. 2020-10-16T18:55:23Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by Map Distribution. English. Public. Middle West. Precambrian.

5. Precambrian basement map of the northern midcontinent, U.S.A. a digital representation of the 1990 P.K. Sims map / [computer file]

2001. 2002-06-01T04:00:00Z. 2023-02-11T04:46:16Z. Geological Survey (U.S.). The Survey ; For sale by USGS Information Services (Open-File Report Sales). English. Public. Middle West. Precambrian.

6. Quaternary geologic map of the Des Moines 4⁰ x 6⁰ quadrangle, United States

1991. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by Map Distribution. English. Public. Iowa and Middle West. Quaternary.

7. Quaternary geologic map of the Platte River 4⁰ x 6⁰ quadrangle, United States

1994. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Middle West. Quaternary.

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1. Equivalent freshwater head and dissolved-solids concentration of water in rocks of Cambrian, Ordovician, and Mississippian age in the northern midcontinent, U.S.A.

2. Maps showing areal extent of selected Paleozoic shales in the northern midcontinent, U.S.A.

3. Maps showing thickness and limestone-dolostone ratios of selected Paleozoic carbonate units in the northern midcontinent, U.S.A.

4. Precambrian basement map of the northern midcontinent, U.S.A.

5. Precambrian basement map of the northern midcontinent, U.S.A. a digital representation of the 1990 P.K. Sims map / [computer file]

6. Quaternary geologic map of the Des Moines 4⁰ x 6⁰ quadrangle, United States

7. Quaternary geologic map of the Platte River 4⁰ x 6⁰ quadrangle, United States

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