TRAIL - Technical Report Archive and Image Library

Influence of overlying strata on methane emissions in a northern West Virginia coal mine

Strengthening low-alloy magnesium sheet by strain-softening and annealing

Electrical properties and attenuation distance of upper Pennsylvanian coal measure rock from southwestern Pennsylvania

Pressure leaching alumina from raw kaolinitic clay using hydrochloric acid

Manganese Availability - Market Economy Countries: A Minerals Availability Program Appraisal

Mineral investigation of the Needle's Eye wilderness study area, Gila County, Arizona

Mineral investigation of the Pigeon Canyon, Snap Point, Nevershine Mesa, and Last Chance Wilderness study areas (BLM), Mohave County, Arizona

Mineral investigation of the Virgin River wilderness study area, Mohave County, Arizona

Mineral investigation of the Mount Trumbull Wilderness study area, Mohave County, Arizona

Mineral investigation of the Hack Canyon wilderness study area, Mohave County, Arizona

A pilot program for underground mine rescue and emergency program utilizing cooperative resources

Recovery of manganese from low-grade domestic sources

Thermodynamic Properties of Halides

Thermodynamic Data for Mineral Technology

Conventional Versus Developing Processes of Phosphatic Clay Disposal: A Technical Evaluation

Lightweight fiberglass feed leg for hand-held pneumatic percussion rock drills

Effect of turbulence on vortex-shedding air-velocity transducers

Research on the reliability of mine electrical equipment :a status report

Video-supplemented task training at the United States Steel Corp. Minntac Mine, Mt. Iron, MN

Production of high-purity gold from zinc precipitates and steel wool cathodes by hydrometallurgical refining

Improved fire protection for underground fuel storage and fuel transfer areas

Laboratory processing and characterization of waste materials from manganese nodules

Field evaluations of magnesium oxide in deep-bed filtration

Minimizing lead contamination in copper produced by solvent extraction-electrowinning

Pull and creep tests on gypsum-bonded roof bolts

Adding steam to control dust in mineral processing

Spectral characteristics of grinding sparks used for identification of scrap metals

Ground control study of a mechanized longwall coal operation in West Virginia

Recovering zinc-lead sulfide from a geothermal brine

Compaction criteria for metal and nonmetal tailings

Wear and corrosion of 12 alloys during laboratory milling of phosphate rock in phosphoric acid waste water

Separation of cast and wrought aluminum alloys by thermomechanical processing

Ground-penetrating radar for strata control

Fire tests of five-gallon containers used for storage in underground coal mines

Flocculation of metal oxide and hydroxide minerals with cross-linked starches containing chelating groups

Application of cast-on ferrochrome-based hard surfacings to polystyrene pattern castings

Electrolytic reduction of cobalt in ammoniacal leach solutions

Corrosion of roof bolt steels in Missouri lead and iron mine waters

Subsidence information for underground mines :literature assessment and annotated bibliography

Analyses of natural gases, 1984

Field measurement and finite-element modeling of circular and rectangular shaft shapes in the Coeur d'Alene mining district, Idaho

Hydrometallurgical treatment of electronic scrap to recover gold and silver

Comparative laboratory evaluation of resin-grouted roof bolt elements

Recognizing signs of excessive loading in underground coal mines

Airflow evaluations of four-flow-controlled personal sampling pumps

Volume expansion of acidproof brick exposed to 20 wt pct HC1 at 90⁰ C

Recovery of zircon from investment casting molds

Field trials of a portable microseismic processor recorder

Bulk mineralogy and geochemistry of selected Alaskan chromian spinel samples

Assessment of phosphogypsum as a constituent of aggregate material

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