Information Circular1965 |
Contents
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| xxv | |
| 87 | |
| 89 | |
| 103 | |
| 166 | |
| 168 | |
| 176 | |
| 181 | |
| 207 | |
| 208 | |
| 213 | |
| 215 | |
| 218 | |
| 232 | |
| 239 | |
| 246 | |
| 267 | |
| 338 | |
| 350 | |
| 352 | |
| 353 | |
| 356 | |
| 357 | |
| 360 | |
| 364 | |
| 365 | |
| 366 | |
| 372 | |
| 375 | |
| 383 | |
Common terms and phrases
altered altitude andesite bodies breccia breccia zone Bureau of Mines calcined carbon Chemical chert Cinnabar occurs claims coal coke-oven copper Corp County Creek crosscuts Development dipping disseminated District Mines dust exploration extensive fault gouge fault zone feet of drifts flasks of mercury fractures fuel furnace plant gases Geol glory hole gouge grade high-grade hydrogen sulfide industry intermittently Kuskokwim Kuskokwim River levels limestone located mercury prices mercury was produced metacinnabarite miles northeast Mines and Properties mining district Mountain native mercury opalite open cuts open pits operations output oven-coke plants ovens percent petroleum coke pounds of mercury production prospect pyrites pyrrhotite Quicksilver refinery reported reserves rhyolite rotary furnace San Benito County sandstone serpentine shale shallow shafts shear zone short adits short tons silica-carbonate rock silicified silver stibnite stopes sulfide sulfuric acid TABLE tons trenches tuff underground United Unknown veinlets veins vertical winze zinc
Popular passages
Page 331 - Department of Agriculture Department of Commerce Department of Defense Department of Health, Education, and Welfare Department of the Interior Department of Justice Department of...
Page 47 - Mineral Resources of the United States, published by the US Geological Survey.
Page xxv - The heavy minerals associated with the gold are magnetite, nodules of limonite, small pieces of ilmenite, and bits of cinnabar. Cinnabar is fairly abundant in the tailings, ranging from specks to rounded pebbles the size of marbles, but it has not been found in place.
Page ix - Commission, 1952) as follows: ***the term "mineral reserves" refers only to the material that in some degree has been inventoried in terms of commercial enterprise***[and] can be mined, processed, and marketed without financial loss under the economic and technologic conditions prevailing at the time of the inquiry. *** It does not contain material of submarginal grade...