Browsing Occasional Papers - Indiana Geol. Survey by Author "Droste, John B."

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  • Droste, John B.; Keller, Stanley J. (Indiana Geological Survey, 1989)
    In very early Pennsylvanian time the place nowcalled Indiana was the locus of subaerial erosion. About 8,000 square miles of this landscape is preserved in western Indiana beneath the rocks of the Pennsylvanian System. ...

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