Generalized Correlation Chart
of Bedrock Units in Ohio
Open-File Report 98-2
Compiled by Glenn E. Larsen, chart with text, 1998
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This plot-on-demand chart shows the regional correlation and relationships of most surface-rock units identified on the 7.5-minute-scale reconnaissance bedrock-geology maps on open file at the Ohio Division of Geological Survey. The generally accepted subsurface terminology also is shown. The lithostratigraphic correlations are set in a geologic-time framework consisting of both North American and global subdivisions. The chart is divided into 14 columns representing 14 different geologic regions of the state. An extensive list of references is included.
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