The Springfield Coal Member of the Petersburg Formation is the primary coal seam mined in Indiana. The Indiana Geological and Water Survey has been collecting physical and chemical data and mapping the Springfield Coal Member for many years. This publication is the most comprehensive digital compilation of geologic information about the Springfield Coal Member in Indiana that is currently available from the Indiana Geological and Water Survey. This application allows users to interactively explore the coal data. These data are important for regional coal quality evaluations and can be used by the public, industry, and state and federal governments.
Drobniak, A., Mastalerz, M., Johnson, M. R., and Baker, M., 2017, Springfield Coal Member: Indiana Geological Survey Digital Information 11, available at https://igws.indiana.edu/IGSMap/SpringfieldCoalMember.
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