223 research outputs found

    Indiana Caves and their Fauna

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    Caves: Speleology and Karst Hydrology

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    Phenomena of subterranean life

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    A Preliminary List of the Arachnida of Indiana, with Keys to Families and Genera of Species

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    The Crawfishes of the State of Indiana

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    A new blind isopod of the genus Caecidotea, from a Missouri cave

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    http://deepblue.lib.umich.edu/bitstream/2027.42/56661/1/OP222.pd

    Full Issue 7(3)

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    Minerals of Indiana

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    Indiana Geological Survey Bulletin 18Undisturbed 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), quartz, and siderite. Found less abundantly are anhydrite, apatite, aragonite, barite, celestite, copiapite, epsomite, fluorite, marcasite, melanterite, millerite, pyrite, pyrrhotite, smythite, sphalerite, strontianite, sulfur, and wad. These minerals occur in veins and cavities; along bedding, joint, and fracture surfaces and stylolite seams; and in geodes in limestones. Reported and observed locations and modes of occurrence are presented for each of the minerals except most clay and minerals. The more unusual minerals that occur in glacial materials of Indiana, native copper, diamond, galena, native gold, and native silver, are described in full. A literature study was the basis for a brief discussion of the history of Indiana minerals. The present report questions the reported occurrences in Indiana of native bismuth, graphite, malachite, moissanite, nitromagnesite, and stibnite.Indiana Department of Conservatio
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