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`Information Circular 9466 Geologic Hazards and Roof Stability in Coal Mines By Gregory M. Molinda DEPARTMENT OF HEALTH AND HUMAN SERVICES Public .
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A geologist is a scientist who ... Some geologists work in the mining ... An engineering geologist is employed to investigate geologic hazards and geologic ...
· What is the health and safety problem? The underground mine worker faces a continuing hazard from roof falls and other ground control related hazards.
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Mining Publication: Geologic Factors Causing Roof Instability and Methane Emission Problems: The Lower Kittanning Coalbed, Cambria County, Pa
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