TRAIL - Technical Report Archive and Image Library

Characterization of Ketchem Dome tin prospect, east-central Alaska

A photographic method for determining mineral reflectances in underground mines

Field measurement of rock displacement during sinking of a deep rectangular shaft

Mechanical behavior of coal measure rocks :elastic-inelastic behavior

Bit wear-flat temperature as a function of depth of cut and speed

Removal of copper from molten ferrous scrap :results of laboratory investigations

Thermodynamic properties of two manganese silicates, pyroxmangite and fowlerite

Preparation of titanium feedstock from Minnesota ilmenite by smelting and sulfation-leaching

Gas content determinations of salt samples using acoustic responses

Probability of resistive spark ignition caused by very low currents

Pioneering studies on the flotation of corundum from a Montana gneiss

Numerical prediction of cobalt sorption in a continuous ion-exchange column

Silver-catalyzed oxidative leaching of an arsenical copper sulfide concentrate

Development of rapid-setting inorganic grouts

Nonferrous waste as a source of zinc for electrogalvanizing

Utilization of scrap preheating and substitute slag conditioners for electric arc furnace steelmaking

Economic evaluation methodology

A laboratory comparison of drag cutting methods in hard rock

International mining cost indexation system :indexes for 96 countries

Analyses of natural gases, 1986

A critique of the dust explosibility index :an alternative for estimating explosion probabilities

Analyses of natural gases, 1917-85

True flammable gas detecting system

Low-frequency vibrations produced by surface mine blasting over abandoned underground mines

Bolt anchorage with gypsum-plaster water capsule cartridges

Pillar load transfer associated with multiple-seam mining

Analysis of rock chips produced during water-jet-assisted cutting

Cobalt and nickel from lead-smelter matte :purification of leach liquor

Acoustic emission monitoring of fracture development

Test apparatus for measuring sound power levels of drills

Effects of composition and processing variables on transverse rupture strength and hardness of nickel-alloy-bonded titanium carbide

Large-scale testing of the ripper fragmentation system

In situ comparison of radical and point-attack bits

International regulation of diesel engine use underground :a country-by-country synopsis

Continuous flotation testing to recover cobalt from Missouri lead ores

Coal mine hazard detection using in-seam ground-penetrating-radar transillumination

Clay veins :their occurrence, characteristics, and support

Mineral issues-- 1987

Fuse wire arc tester

Fugitive dust control for haulage roads and tailing basins

Effects of stimulation treatments on coalbeds and surrounding strata :evidence from underground observations

Survey of nuisance and biologically active dusts in metal and nonmetal mines

Estimation of remaining lode gold endowment in selected mining districts of Alaska

Natural and synthetic zeolites

Reducing dust exposure of workers during bag stacking in enclosed vehicles

Assessment and determination of illumination needs for operators of mobile surface mining equipment

Human factors contributing to groundfall accidents in underground coal mines :workers' views

Eastern coal mine geomechanics :proceedings, Bureau of Mines Technology Transfer Seminar, Pittsburgh, PA, November 19, 1986

An analysis of off-highway haulage truck maintenance and repair accidents, 1978-84

Spontaneous combustion fire detection for deep metal mines

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