| Book | Requires cookie* | 1 | Title: | Chemical composition, stratigraphy, and depositional environments of the Black River Group (Middle Ordovician), southwestern Ohio
| | | Creator: | Stith, David A. | | | Publication: | State of Ohio, Dept. of Natural Resources, Division of Geological Survey, Columbus,1979. | | | Notes: | Bibliography: p. 16. | | | Call #: | F34JQ O79 no.113 | | | Extent: | iv, 36 p. : ill., graphs (3 fold. in pocket) ; 28 cm. | | | Subjects: | Geology, Stratigraphic -- Ordovician | Geology -- Ohio
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Book | Requires cookie* | 3 | Title: | Stratigraphy, structure, and production history of the Trenton Limestone (Ordovician) and adjacent strata in northwestern Ohio
| | | Creator: | Wickstrom, Lawrence H. | | | | Gray, John D. | | | | Stieglitz, Ronald D. | | | Publication: | State of Ohio, Dept. of Natural Resources, Division of Geological Survey, Columbus,1992. | | | Notes: | One map on folded leaf in pocket: Stratigraphic and structural cross sections of northwestern Ohio. Includes bibliographical references (p. 43-46). | | | Call #: | F34JQ O79 no.143 | | | Extent: | iv, 78 p. : ill. ; 28 cm. | | | Subjects: | Geology, Stratigraphic -- Ordovician | Geology -- Ohio | Petroleum -- Geology -- Ohio | Natural gas -- Geology -- Ohio | Trenton Limestone
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