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

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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 ...
  • Harrison, Wyman (Indiana Geological Survey, 1959-09)
    Two to four till sheets were deposited in Marion County, Indiana by the East White sublobe of the Ontario-Erie major lobe of the Wisconsin ice sheet. Fraction analyses (mineralogy and lithology versus size) were made for ...

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