Browsing Great Lakes Geologic Mapping Coalition by Subject "ODNR - Division of Geological Survey"

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  • Raab, James; Haiker, Bill; Jones, Wayne; Angle, Michael; Pavey, Rick; Swinford, Mac; Powers, Donovan (ODNR-Division of Water, Division of Geological Survey, 2009-01)
    On March 18, 2008 ground water levels rose to 40-year high levels in the Bellevue, Ohio area. Sinkholes, rounded depressions in the landscape formed by solution of bedrock or collapse of an underlying cavity, which typically ...
  • Swinford, E. Mac; Powers, Donovan M.; Angle, Michael P.; Pavey, Richard R. (ODNR Division of Geological Survey, 2012-07-12)
    On March 18, 2008, ground water levels rose to a 30-year high in the Bellevue, Ohio, area. Surface and near-surface geologic conditions combined with unusually high precipitation caused extensive flooding of fields, roadways, ...
  • Aden, D. J. (ODNR Division of Geological Survey, 2013)
    Karst terrain forms by dissolution of carbonate rocks, such as limestone or dolomite, or evaporites, such as gypsum or salt, and is characterized by features including sinkholes, disappearing streams, caves, and springs. ...
  • Pavey, R. R.; Stone, B. D (ODNR Division of Geological Survey, 2013-09)
  • Jones, D. M.; Pavey, R. R.; Larsen, G. E.; Aden, D. J.; Angle, M. P. (ODNR Division of Geological Survey, 2013-08)
    Bedrock geology in the Lima quadrangle ranges from the Ordovician-age Cincinnati group to the Silurian-age Salina Group (Slucher and others, 2006). Derivative mapping shows that four units have potentially economic-quality ...

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