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Mine water problems of Pennsylvania anthracite region
Problem of drainage in closed anthracite mines; relation of drainage problems to geologic structures, rainfall, and infiltrations; functions of barrier pillars; legislative action and flood control program.
Mine water problems of Pennsylvania anthracite region
Problem of drainage in closed anthracite mines; relation of drainage problems to geologic structures, rainfall, and infiltrations; functions of barrier pillars; legislative action and flood control program.
Mine water problems of Pennsylvania anthracite region
Min Eng
Dierks, H.A. (author)
1957
5 pages
Article (Journal)
English
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