Browsing by Subject "Gypsum"

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  • McGregor, Duncan J. (Indiana Geological Survey, 1954-12)
    This investigation was undertaken to make the features of evaporites (gypsum and anhydrite) in southwestern Indiana known and to determine their origin, geologic occurrence, uses, and relationship to associated rock ...
  • Erd, Richard C.; Greenberg, Seymour S. (Indiana Geological Survey, 1960)
    Undisturbed Paleozoic sediments form the bedrock surface of Indiana. The most common minerals in these sediments are calcite, clay minerals, dolomite, glauconite, goethite, gypsum, hematite, limonite (hydrous iron oxides), ...

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