Show simple item record Aden, Douglas J. Powers, Donovan M. Pavey, Richard R. Jones, D. Mark Martin, Dean R. Shrake, Douglas L. Angle, Michael P. 2012-01-04T15:19:11Z 2012-01-04T15:19:11Z 2011
dc.identifier.citation Aden, D.J., Powers, D.M., Pavey, R.R., Jones, D.M., Martin, D.R., Shrake, D.L., Angle, M.P., 2011, Karst of Western Delaware County, Ohio, Region: Ohio Department of Natural Resources, Division of Geological Survey, OFR-2011-4-Mapbook. en
dc.description.abstract 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), soil maps, drift thickness, and water well logs to locate potential sinks. Suspect locations then were visited in the field, evaluated, and photographed. Through this process we quickly learned that many of the LiDAR returns were not sinks; features such as building foundations, broken field tile, steep-walled streams, and road culverts often produced enclosed areas similar in shape to sinkholes. Many of these features were eliminated using 6-inches-per pixel aerial photography and experience from field verification. The resulting map of sinkholes and collection of photographs can be used to monitor the growth of preexisting sinkholes and the development of new karst features. Furthermore, areas of land development should be carefully planned in regions of dense karst since they are highly susceptible to pollution and may subside. en
dc.language.iso en_US en
dc.publisher Ohio Department of Natural Resources, Division of Geological Survey en
dc.relation.isversionof en
dc.rights This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License. To view a copy of this license, visit or send a letter to Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA en
dc.rights.uri en
dc.subject geologic map en
dc.subject LiDAR en
dc.subject springs en
dc.subject cave en
dc.subject sinkhole en
dc.subject karst en
dc.subject carbonate bedrock en
dc.subject Delaware County en
dc.subject ODNR Division of Geological Survey en
dc.subject Ohio Department of Natural Resources en
dc.subject Ohio en
dc.title Karst of the Western Delaware County, Ohio, Region - Mapbook en
dc.type Map en

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