Browsing Indiana Geological Survey by Author "McGregor, Duncan J."

Sort by: Order: Results:

  • McGregor, Duncan J. (Indiana Geological Survey, 1958-12)
    Limestone that is chemically suitable and easily accessible for cement manufacture can be found at many places in Indiana in the Mississippian limestones and to a more limited extent in the Devonian limestones. Clay, shale, ...
  • Smith, Ned M.; Brookley, Arthur C.; McGregor, Duncan J. (Indiana Geological Survey, 1954)
    Rocks, minerals, and fossils of Indiana are the foundation, directly or indirectly, of the economic well-being of the state. Utilization of rocks, minerals, and fossils has contributed to the development of civilization. ...
  • Greenberg, Seymour S.; Bundy, Wayne M.; McGregor, Duncan J. (Indiana Geological Survey, 1958)
    The study of minerals and rocks is an important part of the science of geology, which treats of the history of the earth and its life, especially as recorded in the rocks. Surprisingly many of us accept as commonplace many ...
  • McGregor, Duncan J. (Indiana Geological Survey, 1954-12)
    This investigation was undertaken to make the features of evaporites (gypsum and anhydrite) in southwestern Indiana known and to determine their origin, geologic occurrence, uses, and relationship to associated rock ...
  • McGregor, Duncan J. (Indiana Geological Survey, 1963)
    High-Calcium limestone and dolomite suitable for industrial use exist in Indiana. Selected measured stratigraphic sections and chemical and spectrographic analyses are used to evaluate high-Calcium limestone and dolomite. ...
  • Gray, Henry H.; Dawson, T.A.; McGregor, Duncan J.; Perry, T.G.; Wayne, William J. (Indiana Geological Society, 1957)
    The purpose of this field conference is to acquaint participants with strata that are associated with the Mississippian-Pennsylvanian unconformity in southwestern Indiana. Criteria which aid in distinguishing between ...

Search IUScholarWorks


Advanced Search

Browse

My Account