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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 64 (1980)

Issue: 8. (August)

First Page: 1284

Last Page: 1284

Title: Coal Resources of Indiana and Potential Geologic Problems in Their Exploration: ABSTRACT

Author(s): Denver Harper

Article Type: Meeting abstract


Indiana has about 33 billion tons of coal resources, and about 17 billion tons are estimated to be recoverable by present-day mining technology. Coal mining, beginning in the early 1800s and continuing until the late 1930s, was principally underground, but since 1940 mining has been mainly surface. At present only five of the more than 120 active operations are underground, and they produce about 2% of the annual tonnage.

Underground mining of coal in Indiana is expected to increase, since about 15 billion of the 17 billion tons of recoverable coal appear to be recoverable only by deep mining methods. Studies of past and present underground operations in the Springfield Coal Member (V), taking into consideration partings, roof conditions, faults, water problems, and gas concentrations in the coal and roof strata, should prove useful in planning for future operations.

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Copyright 1997 American Association of Petroleum Geologists