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Item Number: OFS04-08
Map Scale: 1:100,000

This map shows bedrock geology in the southwestern portion of the Wabash 30 x 60 minute quadrangle at a scale of 1:100,000. 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 04-09. Structure control is shown for the top of the Salamonie Dolomite.

Hasenmueller, W. A. 2004, Bedrock geologic map of the southwestern portion of the Wabash 30 X 60 minute quadrangle, Indiana: Indiana Geological Survey Open-File Study 04-08

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Keywords: statemap, geologic map, mathematical geology, mineral resource, structural geology, Maquoketa Group, Ordovician, Pleasant Mills Formation, Salamonie Dolomite, Salina Group, Cataract Formation, Silurian System, Wabash Formation

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Updated 8/19/2020