Introduction to the Bedrock Extent Survey

Purpose:

To determine the extent of the limestone bedrock in the South West part of Pulaski County, extending to White and Jasper Counties. This information will assist to determine where detailed mapping may be necessary and the development of map unit descriptions.


Procedure:

Using the hydraulic probe truck and hand tools, borings will be made on each section corner extending from 1 to 2 miles south of the White Co. line to North of Francesville and 1 to 2 miles West of the Jasper Co. line to the Big Monon ditch. These borings will be down to bedrock, a short soil description will be obtained at each point. The Rockwell GPS receiver will be used to obtain the X, Y, and Z coordinates at each stop, however, elevation will probably be obtained from the topography map. Additional bedrock information will be compiled from transect data, well logs, and bedrock topography maps. This data will be summarized by elevation above sea level in Surfer. Surface diagrams will be constructed of both the soil surface and the limestone surface.





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