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

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  • Carr, Donald D.; French, Robert R.; Ault, Curtis H. (Indiana Geological Survey, 1971)
    Mineral aggregate is an aggregation of mineral material, such as crushed rock, expanded shale, perlite, sand and gravel, shells, or slag. It is sometimes bound with such material as cement or asphalt or is sometimes not ...
  • French, Robert R. (Indiana Geological Survey, 1967)
    Devonian and Silurian carbonate rocks exposed on the crest and flanks of the Cincinnati Arch provide most of the raw material for the crushed stone industry of Indiana. The present northwest-southeast structure has controlled ...
  • Carr, Donald D.; Webb, William M. (Indiana Geological Survey, 1970)
    Sand and gravel are unconsolidated granular materials resulting from the natural disintegration of rocks. Unlike most other mineral commodities they are defined in terms of particle size rather than mineral or chemical ...

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