Browsing Bulletins - Indiana Geol. Survey by Subject "Shale"

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  • Harrison, Jack L.; Murray, Haydn (Indiana Geological Survey, 1964)
    Modern concepts of clays as assemblages of discrete minerals form the basis for the first reevaluation of the clays and shales of Indiana since 1933. Brief explanations of the fundamentals of clay mineralogy and the major ...
  • Wood, Joseph M. (Indiana Geological Survey, 1968)
    Plant macrofossils are found in shales, ironstone concretions, and sandstones that lie immediately above the Lower Block Coal near Stanley Cemetery in Greene County, Ind. The Lower Block Coal lies at the base of the Brazil ...

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