Browsing Reports of Progress - Indiana Geol. Survey by Subject "Mansfield Formation"

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  • Gray, Henry H. (Indiana Geological Survey, 1962-11)
    The Mansfield Formation of early Pennsylvanian age crops out in an area of approximately 1,700 square miles in southwestern Indiana. Three-fifths of the formation consists of sandstone; most of the remainder is finer clastic ...

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