Item Number: OFS03-07
Map Scale: 1:100,000

This map shows bedrock geology in the Indianapolis 1:100,000-scale quadrangle. The map was created by modeling rock-unit boundary surfaces with computer gridding and contouring software and then computing the intersections between rock-unit boundary surfaces and the bedrock surface shown in OFS 03-03. Structure control is shown for the top of the Sanders Group and Muscatatuck Group.



Hasenmueller, W. A., James, C. L. 2003, Bedrock geologic map of the Indianapolis 30 X 60 minute quadrangle, central Indiana: Indiana Geological Survey Open-File Study 03-07

Notes: Publications in the Indiana Geological Survey Open-File series have been inconsistently named using a variety of series titles including "Open-File Report," "Open-File Map," and "Open-File Study." Prior to 1994, a publication in this series was generally referred to as an "Open-File Report" (but not always). To help reduce confusion created by these inconsistencies, the IGS now refers to every publication in the Open-File series as an "Open-File Study." To be entirely correct in writing a bibliographic reference for a publication, one should use the series name and number that appears on the publication itself.


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Keywords: statemap, fault, geologic map, mathematical geology, mineral resource, structural geology, Blue River Group, Borden Group, Devonian, Edwardsville Formation, Mansfield Formation, Mississippian, Muscatatuck Group, New Albany Shale, New Providence Shale, Pennsylvanian, Pleasant Mills Formation, Raccoon Creek Group, Rockford Limestone, Salamonie Dolomite, Salina Group, Sanders Group, Sexton Creek Limestone, Silurian, Spickert Knob Formation, Wabash Formation, West Baden Group

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Updated 8/19/2020