Browse TRAIL Inventories

A computer program for the stereographic analysis of coal fractures and cleats

A continuous-recording methanometer for exhaust fan monitoring

Methane emissions from an advancing coal mine section in the Pittsburgh coalbed

Methane emissions from four working places in the Beckley mine, Raleigh County, W. Va.

A fail-safe control system for a mine methane pipeline

Determination of geologic features associated with linears

A guide to geologic features in coal mines in the northern Appalachian coal basin

Prediction of surface deformations over longwall panels in the Northern Appalachian coalfield

Subsidence due to undermining of sloping terrain :a case study

Subsidence over the end of a longwall panel


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