 | Maughan, Edwin K., Zambrano O., Francisco, Mojica G., Pedro, Abozaglo M., Jacob, Pachon P., Fernando, Duran R., Raul (1979) Paleontologic and stratigraphic relations of phosphate beds in Upper Cretaceous rocks of the Cordillera Oriental, Colombia. Open-File Report Vol. 1979 (79-1525) US Geological Survey doi:10.3133/ofr791525 | Report (issue) | | phosphorite reserves in an area in the vicinity of Azufrada^ Conchal, and Vanegas, Department of Santander...reserves in the Municipio de Lebrija in the area of Azufrada, Conchal, and Vanegas, Santander................Their work led to discovery and the opening of a mine near Tesalia in the Department of Huila, in beds...led to the exploration and opening of a phosphate mine at Lobatera in the State of Tachira, Venezuela,...moderately to well-sorted, fine- to medium-grained quartz; but it is coarse grained and finely conglomeratic |  | Tschanz, Charles MaFarland, Hall, R.B., Feininger, T., Ward, D.E., Goldsmith, R., MacLaughlin, D.H., Maughan, E. (1968) Summary of mineral resources in four selected areas of Colombia. Open-File Report Vol. 1968 (68-279) US Geological Survey doi:10.3133/ofr68279 | Report (issue) | | Cordillera, by Richard Goldsmith Introduction Me t allic Mine r al s Gold Iron . Non-metallic minerals Fluorita...floation plant, potash feldspar could be produced from quartz-perthite granulites but the economics are questionable...loss, chiefly CC2 ), 14.21% (insoluble, chiefly quartz and Silicates 7 ), 0. 68% MgC, 0. 39% £1203, 0...S6 to 96% insoluble material, chiefly j silica (quartz) without economic value. The limestones in the...than 28% A1203 with a maximum of 33%. Some contain quartz and most contain chlorite and sericite. No report |  | | Report (issue) | | for foreign countries, if a given name refers to a mine or deposit, a nearby location or administrative...names may be used to refer to a single deposit or mine. For large deposits or mineralized areas, a 3 single...is meant to identify the area, deposit, district, mine, or occurrence to which the geologic, economic,...Erdosh, George, 1979, The Ontario carbonatite province and its phosphate potential: Economic Geology...JOIDES Resolution, Callao, Peru to Valparaiso, Chile, sites 679-688, 20 October 1986-25 December 1986: |  | | Report (issue) | | literature. An example was with the Osamu Utsumi mine in Brazil. This deposit has been reported in the...The given name for the occurrence or deposit. PROVINCE The major region political subdivision of the...producer. Mine A mine is a deposit from which ore is currently being recovered. Depleted Mine A depleted...depleted mine is, a mine-out or depleted ore deposit with insufficient Reasonably Assured Resources recoverable...support further production. Inactive Mine An inactive mine is a closed mine with remaining Reasonably Assured | | | Report (issue) | | for foreign countries, if a given name refers to a mine or deposit, a nearby location or administrative...may be used to 3 refer to a single deposit or mine. For large deposits or mineralized areas, a single...is meant to identify the area, deposit, district, mine, or occurrence to which the geologic, economic,...locations represent the nearest town, rather than the mine or deposit, and locations taken from other references...the following abbreviations: S Surface mine U Underground mine B Both surface and underground mining |  | | Book (volume) | | conclusions while processing geological information. 3. Mine fields complicated structure is the main factor...between structural zoning of a basin and structures of mine fields, distributed in different zones, in order...preparation wastes utilization, fuel combustion; mine waters and methane utilization. The creation of...recorded in the shales of the East Australian province , in the foredeep of the Tasmanian folding belt...coal-bearing province. Put in the same class is the upper-Cenozoic Pacific coal-bearing province of the mobile |  | | Report (issue) | | in scope. Second order index is by geologic province, third order by occurrence and fourth order by...majority of the references geology of a deposit or mine; resources and reserves; reserve estima- tion;...of mines; feasibility studies; mineral economics; mine finance; investment; trade; markets; production;...AND THE HOST ROCKS INCLUDE FINE-GRAINED APATITE-QUARTZ-FELDSPAR ROCK, AND APATITE-BEARING OR PHOSPHORITE-BANDED...TO A POSSIBLE LOWER PROTE ROZOIC PHOSPHOGENIC PROVINCE OF THE BALTIC SHIELD, mmmmmmmm agi =73-32492 |
|
