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

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  • Gutstadt, Allan M. (Indiana Geological Survey, 1958)
    Cambrian and Ordovician rocks throughout most of Indiana are subdivided in ascending order as follows: lower part of the St. Croixan series, consisting of the Mt. Simon sandstone and the Eau Claire formation, upper part ...
  • Shaver, Robert H.; Burger, Anne M. (Indiana Geological Survey, 1970)
    The Geologic Names Committee of the Indiana Geological Survey has maintained for several years tables of the more important rock- and time-stratigraphic names that have been used in Indiana. These tables show classification ...
  • Esarey, Ralph E.; Bieberman, Doris F. (Indiana Division of Geology, 1948)
    Silurian and Devonian outcrops of Indiana are divided roughly into two areas, northern and southeastern Indiana. The bedrock of the northern area is largely covered by glacial drift, whereas the bedrock of the southeastern ...
  • Hutchison, Harold C. (Indiana Geological Survey, 1960)
    The Brazil Quadrangles are located in west-central Indiana and comprise an area of approximately 116 square miles. The rocks that crop out in the area belong to the Mansfield, Brazil, Staunton and Linton Formations of the ...
  • Gray, Henry H.; Jenkins, Robert D.; Weidman, Robert M. (Indiana Geological Survey, 1960)
    The Huron area is approximately 85 mi. SSW. of Indianapolis and includes approximately 117 sq. mi. of area in the physiographic province known as the Crawford upland. Nearly flat-lying sedimentary rocks of late Mississippian ...
  • Wayne, William J. (Indiana Geological Survey, 1960)
    The system of stratigraphic classification used in North America for all sedimentary rock units except nonmarine deposits of the Pleistocene Series established groups, formations, and smaller units based on objectively ...
  • Pinsak, Shaver, Robert H. Arthur P. (Indiana Geological Survey, 1964)
    The Silurian rocks in northern Indiana include, in ascending order, the Brassfield Limestone (lower Silurian), the Salamonie Dolomite, the Louisville Limestone, and the Wabash Formation, all of the Niagaran Series (middle ...
  • 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 ...
  • Rexroad, Carl B. (Indiana Geological Survey, 1967)
    Abstract Conodonts were collected from 49 sections of the Brassfield Formation (Brassfield Limestone) in its outcrop belt around the Cincinnati Arch in Indiana, Kentucky, and Ohio. Thirty-four indigenous species represent ...
  • Nicoll, Robert S.; Rexroad, Carl B. (Indiana Geological Survey, 1968)
    Zonation established by study of the conodont faunas of the Lee Creek Member (new member) of the Brassfield Limestone and of the Salamonie Dolomite, both of Silurian age, from 42 sections in southeastern Indiana and ...

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