Browsing Circulars - Indiana Geol. Survey by Title

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  • Wayne, William J. (Indiana Geological Survey, 1958)
    Rocks are made up of a mixture of minerals. Therefore you need to know what minerals and how much of each mineral are in a rock before you can give that rock a name. This has been an obstacle for the student of nature ...
  • Judah, Robert E. (Illustrator); Harrison, Wyman (Indiana Geological Survey, 1963)
    The "pages" of rock strata that together form the geologic history book of Marion County are written in a foreign language of fossils, rock fragments, and mineral grains. We are able to translate the messages from these ...

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