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I 28.155:OFR 12-91
|
Determining effectiveness of past mine fire surface seal abatement methods |
1 |
|
I 28.155:OFR 18-91
|
Inhibition of acidic mine drainage using anti-bacterial substances |
1 |
|
I 28.155:OFR 21-91
|
Respirable dust in the mineral industries : health effects, characterization, and control |
1 |
|
I 28.155:OFR 22-91
|
Research program and status report, 1984-1988 |
1 |
|
I 28.155:OFR-24
|
Respirable Dust Center research program review |
1 |
|
I 28.155:OFR 29-91
|
Development of containment barriers using foaming mud cement |
1 |
|
I 28.155:OFR 32-91
|
A study of natural wetlands associated with acid mine drainage |
1 |
|
I 28.155:OFR 33-91
|
Mineral investigations in the Ketchikan Mining District, Alaska, 1990 : southern Prince of Wales Island and vicinity : preliminary sample location maps and descriptions |
1 |
|
I 28.155:OFR 34-91
|
Investigation of tin-rare earth element placers in the Ray River Watershed |
1 |
|
I 28.155:OFR 35-91
|
Evaluation of the tin-tungsten greisen mineralization and associated granite at Sleitat Mountain, southwestern Alaska |
1 |
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I 28.155:OFR 39(1-2)-91
|
Maintainability design of underground mining equipment |
1 |
|
I 28.155:OFR 40-91
|
High angle mining system |
1 |
|
I 28.155:OFR 41-91
|
Land ownership and the regulatory framework for oil, gas, and coal leasing in Alaska |
1 |
|
I 28.155:OFR 43-91
|
Phosphorous removal from steelmaking slags for re-use : final report |
1 |
|
I 28.155:OFR 48-91
|
An assessment of substrate phosphorite resources in Hawaiian EEZ |
1 |
|
I 28.155:OFR 50-91
|
A mobile in-flight plasma process to treat electric furnace dust |
1 |
|
I 28.155:OFR 51-91
|
Reclamation research and demonstration areas : annotated listing through July 31, 1987 |
1 |
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I 28.155:OFR 52-91
|
Reclamation research and demonstration areas supplement : annotated list August 1, 1987 through June 30, 1989 |
1 |
|
I 28.155:OFR 71-85
|
Development of foreign economic indices : phase II update for Guatemala |
1 |
|
I 28.155:OFR 73-85
|
Development of foreign economic indices : phase II update for Philippines |
1 |