Browsing Presentations by Author "Shrake, Douglas L."

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  • Aden, Douglas J.; Powers, Donovan M.; Pavey, Richard R.; Jones, D. Mark; Martin, Dean R.; Shrake, Douglas L.; Angle, Michael P. (Ohio Department of Natural Resources, Division of Geological Survey, 2011)
    To locate sinks, LiDAR was used to create an ArcGIS layer that identified low, enclosed areas. These low spots were cross referenced with known karst points, bedrock geology, aerial photography (multiple sources/ages), ...
  • Venteris, Erik R.; Shrake, Douglas L.; Larsen, Glenn E.; Angle, Michael P.; Pavey, Richard R.; Wolfe, Mark E. (Ohio Department of Natural Resources; Division of Geological Survey, 2011-02)
    The Ohio Department of Natural Resources (ODNR), Division of Geological Survey has completed a reconnaissance map showing areas of mineable bedrock, including shale, limestone, and dolomite, likely covered by thin surficial ...
  • Shrake, Douglas L.; Venteris, Erik R.; Larsen, Glenn E.; Angle, Michael P.; Pavey, Richard R.; Wolfe, Mark E.; Powers, Donovan M. (Ohio Department of Natural Resources, Division of Geological Survey, 2011-02)
    The Ohio Department of Natural Resources (ODNR), Division of Geological Survey has completed a reconnaissance map showing areas of mineable bedrock, including shale, limestone, and dolomite, likely covered by thin surficial ...
  • Venteris, Eric R.; Shrake, Douglas L.; Larsen, Glenn E.; Pavey, Richard R.; Schumacher, Gregory A. (Ohio Department of Natural Resources; Division of Geological Survey, 2011-03)
    The Ohio Department of Natural Resources (ODNR), Division of Geological Survey has completed a reconnaissance map showing areas of mineable sand and gravel resources in the Mansfield, Ohio, 30 x 60 minute (scale 1:100,000) ...

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