Todd Thompson
Geological Research at the IGS

Mapping bedrock geology in Lawrence County

Status Start Date End Date Locations
completed May 1, 2007 Sep 30, 2014 Lawrence
Director: Todd Thompson
Other Researchers: Walter Hasenmueller, Robin Rupp Carolyn Estell, Brian Keith
Funding: U.S. Geological Survey (USGS) - STATEMAP Program
Issue: Natural resource needs and population-related impacts require geologic maps and map products in urban areas and along transportation corridors. Specific issues in Indiana that this bedrock geologic mapping addresses are: 1) Distribution and availability of carbonate bedrock for construction aggregate and dimension limestone; 2) Geologic hazards and resource availability related to new highway construction.
Objective: This project anticipates the need for more detailed geologic information to guide planning in and around a major population center along the SR 37 and US 50 corridors. The project is also intended to expedite current scientific studies of the economically important Salem Limestone and related rocks in Lawrence County, and to further refine computer mapping techniques. The detailed geologic framework and databases that this project will create are intended to provide data for the quantitative assessment of dimension and crushed stone resources in the county.
Approach: Geologic mapping began at the north central part of Lawrence County. It progressed into the center and is now working counter-clockwise around the county. The project mapping database integrates existing data from a variety of sources, including public-domain data such as petroleum-well records, water-well records, highway test borings, work maps, field notes, measured sections, geologic literature, and other available data from state agencies.
Products: Geologic maps of individual quadrangles (1:24,000) and the county (1:48,000).
Benefits: Updated maps and reports on the geologic resources of the area. New cores to better define the stratigraphy.
Publications:

Geologic map of Lawrence County, Indiana

Preliminary bedrock geologic map of the Bartlettsville 7.5-Minute Quadrangle, Indiana
Thompson T.A., Keith, B.D., Hasenmueller, W.A., and Estell, C.M., 2008, Preliminary bedrock geologic map of the Bartlettsville 7.5-Minute Quadrangle, Indiana. Indiana Geological Survey Open-File Study 08-02, 1:24,000, 1 plate.

Preliminary bedrock geologic map of the Bedford East 7.5-Minute Quadrangle, Indiana
Thompson T.A., Keith, B.D., Estell, C.M., and Hasenmueller, W.A., 2009, Preliminary bedrock geologic map of the Bedford East 7.5-Minute Quadrangle, Indiana. Indiana Geological Survey Open-File Study 09-10, 1:24,000, 1 plate.

Preliminary bedrock geologic map of the Bedford West 7.5-Minute Quadrangle, Indiana
Keith, B.D., Thompson T.A., Estell, C.M., and Hasenmueller, W.A., 2009, Preliminary bedrock geologic map of the Bedford West 7.5-Minute Quadrangle, Indiana. Indiana Geological Survey Open-File Study 09-11, 1:24,000, 1 plate.

Preliminary bedrock geologic map of the Norman 7.5-Minute Quadrangle, Indiana
Keith, B.D., Thompson T.A., Estell, C.M., and Hasenmueller, W.A., 2010, Preliminary bedrock geologic map of the Norman 7.5-Minute Quadrangle, Indiana. Indiana Geological Survey Open-File Study 10-03, 1:24,000, 1 plate.

Preliminary bedrock geologic map of the Oolitic 7.5-Minute Quadrangle, Indiana
Keith, B.D., Thompson T.A., Hasenmueller, W.A., and Estell, C.M., 2008, Preliminary bedrock geologic map of the Oolitic 7.5-Minute Quadrangle, Indiana. Indiana Geological Survey Open-File Study 08-01, 1:24,000, 1 plate.

Preliminary bedrock geologic map of the Owensburg 7.5-minute quadrangle, Indiana

Preliminary bedrock geologic map of the Tunnelton 7.5-Minute Quadrangle, Indiana
Thompson T.A., Keith, B.D., Estell, C.M., and Hasenmueller, W.A., 2010, Preliminary bedrock geologic map of the Tunnelton 7.5-Minute Quadrangle, Indiana. Indiana Geological Survey Open-File Study 10-02, 1:24,000, 1 plate.

Preliminary bedrock geologic map of the Williams 7.5-minute quadrangle, Indiana

Preliminary bedrock map of the Huron 7.5-minute quadrangle, Indiana

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