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    Thermal maturity map of Devonian shale in the Illinois, Michigan, and Appalachian Basins of North America by East, Joseph A.

    Published: U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by U.S. Geological Survey, 2012
    Description: 1 map : color ; 46 x 43 cm, on sheet 88 x 105 cm, folded to 30 x 22 cm, in envelope 30 x 24 cm.
    Government Document Map
  2. 2

    Thermal maturity map of Devonian shale in the Illinois, Michigan, and Appalachian Basins of North America by East, Joseph A.

    Published: U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by U.S. Geological Survey, 2012
    Description: 1 online resource (1 map) : color.
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    Government Document Electronic Map