 | 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,...Galembo. The section in Quebrada La Sorda near Azufrada (pi. 4) is one of the most readily accessible |  | 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...reserves. < The old Berlin mine west of Yarumal, once the most important gold mine in Zone IIA, was shut dov/n...are disseminated in the quartz veins at lode gold mine like La Eramadora and Marmato. 16 />bcut 12 tons...not extractable by panning or cyanidation at the mine. The base metals are only incidental an-:1 pay for...exploited profitably. Mercury: The Nueva Zlsperanza mine at Aranzazu, Caldas is operated by Southern Union |  | | 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) | | 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 |  | | 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) | | 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;...TO A POSSIBLE LOWER PROTE ROZOIC PHOSPHOGENIC PROVINCE OF THE BALTIC SHIELD, mmmmmmmm agi =73-32492... P, 810 (IN JAPANESE) abstrct=NQTE, A PHOSPHATE MINE IN HENKA-SHO, AN ISLET NEAR KIIRUN, TAIWAN, IS BRIEFLY |
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