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Ellsworth Shale

Ellsworth Shale - Green shale; some black shale in lower part
StateIndiana
NameEllsworth Shale
Geologic ageDevonian-Mississippian
Original map labeldMe
CommentsOn the paper map (Ref IN001), the map symbol for this unit is dM. In the digital version of the file (Ref IN003), the map symbol has been changed to dMe. We have followed the symbology of the digital file. The description of the unit comes from the paper map (Ref IN001).
Primary rock typeshale
Secondary rock typeblack shale
Other rock types
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > ShaleEllsworth Shale - green shale; some black shale in lower part
Minor
Sedimentary > Clastic > Mudstone > Shale > Black-shaleEllsworth Shale - green shale; some black shale in lower part
Map references
[BEDROCK_GEOL_MM48_IN: Bedrock Geology of Indiana (Indiana Geological Survey, 1:500,000, Polygon Shapefile)] which can be found at http://igs.indiana.edu/arcims/statewide/download.html
Unit references
Gray, Henry H., Ault, Curtis, H., and Keller, Stanley, J., 1987, Bedrock geologic map of Indiana: Dept. of Natural Resources, Indiana Geological Survey, Miscellaneous Map 48, scale = 1:500,000
Geographic coverageDeKalb - Elkhart - Jasper - Kosciusko - LaGrange - Lake - LaPorte - Marshall - Noble - Porter - Saint Joseph - Starke - Steuben

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