|We suggest that you have this map shipped rolled in a tube, as it is printed on heavy paper and will crack if folded.|
ANNOTATION: Abundant data document the top of the Trenton Limestone (Ordovician) in central Indiana but the irregularity of the Trenton-top discontinuity surface makes it difficult to identify structural details. This structure map was prepared by using geostatistical and computer mapping techniques to filter out relief of the discontinuity surface at the top of the Trenton. The map shows structural features in the Lafayette, Indianapolis, western half of the Muncie, and western half of the New Castle 1:100,000-scale quadrangles that can be resolved using available Trenton-top data.
Hasenmueller, W. A., James, C. L. 2002, Map showing the structure on top of the Trenton Limestone in the Indiana Heartland: Indiana Geological Survey Open-File Study 02-06
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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