Item Number: OFS03-08

Map Scale: 1:100,000

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Authors:	Walter Hasenmueller Christina James

This map shows bedrock geology in the Lafayette 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 03-04. Structure control is shown for the top of the Muscatatuck Group and Salamonie Dolomite.

Hasenmueller, W. A., James, C. L. 2003, Bedrock geologic map of the Lafayette 30 X 60 minute quadrangle, central Indiana: Indiana Geological Survey Open-File Study 03-08

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.

Bedrock geologic map of the Indianapolis 30 X 60 minute quadrangle, central Indiana

Bedrock geologic map of the west half of the New Castle 30 X 60 minute quadrangle, central Indiana

Bedrock geologic map of the west half of the Muncie 30 X 60 minute quadrangle, central Indiana

Bedrock geologic map of the southwestern portion of the Wabash 30 X 60 minute quadrangle, Indiana

Bedrock geologic map of the western quarter of the Muncie and eastern quarter of the Lafayette 1:100,000 quadrangles, central Indiana

Spickert Knob Formation (new), Borden Group, in Indiana

Arenaceous Foraminiferida and zonation of the Silurian rocks of northern Indiana

The Salina Group (Middle and Upper Silurian) of Indiana

Preliminary map showing bedrock geology of the Martinsville 7.5-minute quadrangle, Indiana

Keywords: statemap, fault, geologic map, mathematical geology, mineral geology, Borden Group, Devonian, Edwardsville Formation, Muscatatuck Group, New Albany Shale, New Providence Shale, Pleasant Mills Formation, Rockford Limestone, Salina Group, Silurian, Spickert Knob Formation, Wabash Formation