 | | Journal (article/letter/editorial) | | 799-808 NOTES ON THE MINERAL RESOURCES OF ECUADOR W. C. STOLL INTRODUCTION The geologyof Ecuadoris...variouspetroleumcompanies that have worked in Ecuador. The metalliferous ore resources have been ...other data obtainedduring and after a visit to Ecuador in 1960 for the Organization of American states...goldandpetroleum, mininghasneverbeenof muchimportance in Ecuador. Gold was worked by the aboriginesbeforethe arrival...potashsalts or nitrate are so far unknown. In 1959 Ecuador produced18,449 Troy ouncesof gold, 162,607 Troy |  | Chiaradia, M., Tripodi, D., Fontbote, L., Reza, B. (2008) Geologic Setting, Mineralogy, and Geochemistry of the Early Tertiary Au-Rich Volcanic-Hosted Massive Sulfide Deposit of La Plata, Western Cordillera, Ecuador. Economic Geology, 103 (1) 161-183 doi:10.2113/gsecongeo.103.1.161 | Journal (article/letter/editorial) | | Volcanic-Hosted Massive Sulfide Deposit of La Plata, Western Cordillera, Ecuador M. CHIARADIA,† D. TRIPODI, L. FONTBOTÉ...MINERA S.A., Isabel La Católica No. 882 y Cordero, Quito, Ecuador Abstract La Plata is, economically,...sulfide (VHMS) deposits of the Western Cordillera of Ecuador, with preliminary estimated reserves of 840,000...the Chimbo-Toachi shear zone in the late Eocene. La Plata displays a typical VHMS vertical zonation, from...east of La Plata. The main ore minerals are pyrite, chalcopyrite, sphalerite, bornite, and galena, with |  | Vallejo, Cristian, Soria, Francisco, Tornos, Fernando, Naranjo, German, Rosero, Bayardo, Salazar, Fredy, Cochrane, Ryan (2016) Geology of El Domo deposit in central Ecuador: a VMS formed on top of an accreted margin. Mineralium Deposita, 51 (3) 389-409 doi:10.1007/s00126-015-0616-x | Journal (article/letter/editorial) | | ARTICLE Geology of El Domo deposit in central Ecuador: a VMS formed on top of an accreted margin Cristian...arc rocks of the Macuchi Formation in central Ecuador. The mineralization includes massive and semi-massive...sphalerite, and chalcopyrite. Minor accumulations of galena, bornite, tennantite, stromeyerite, and proustite...Av. 10 de Agosto N37-232 y Villalengua, Quito, Ecuador 2 Geostrat SA, Av. República de El Salvador E9-10... de Los Shyris Edificio ONIX, Piso 10, Quito, Ecuador 3 Centro de Astrobiologia (CSIC-INTA), Torrejon |  | Páez, G.N., Ruiz, R., Guido, D.M., Ríos, F.J., Subias, I., Recio, C., Schalamuk, I.B. (2016) High-grade ore shoots at the Martha epithermal vein system, Deseado Massif, Argentina: The interplay of tectonic, hydrothermal and supergene processes in ore genesis. Ore Geology Reviews, 72. 546-561 doi:10.1016/j.oregeorev.2015.07.026 | Journal (article/letter/editorial) | | Universidad Nacional de La Plata Calle 64 esquina Calle 120, (1900) La Plata, Provincia de Buenos Aires...(31270-901) Belo Horizonte, Brazil e Depto. de Ciencias de la Tierra, Universidad de Zaragoza, Edificio de Geológicas...Isótopos Estables, Facultad de Ciencias, Plaza de la Merced s/n, (E-37008) Salamanca, Spain b a r t i...of the Martha mine epithermal deposit (Deseado Massif, Patagonia, Argentina). The mine was active from...highest-grade portions of the ore-shoots found at the mine. Finally, a post-mineral supergene phase defined |  | | Journal (article/letter/editorial) | | journal homepage: www.elsevier.com/locate/oregeorev La Josefina Au–Ag deposit (Patagonia, Argentina): A Jurassic...Nacional de La Plata, Instituto de Recursos Minerales (INREMI), Calle 64 y 120, B1900FWA, La Plata, Argentina...Nacional de La Plata, Instituto de Recursos Minerales (INREMI), Calle 64 y 120, B1900FWA, La Plata, Argentina...Au–Ag veins Patagonia Argentina a b s t r a c t The La Josefina Jurassic epithermal Au–Ag deposit located...electrum, Ag-rich sulfosalts (freibergite), pyrite, galena, sphalerite, chalcopyrite and specular hematite |  | Jovic, Sebastián M., Guido, Diego M., Schalamuk, Isidoro B., Ríos, Francisco J., Tassinari, Colombo C. G., Recio, Clemente (2011) Pingüino In-bearing polymetallic vein deposit, Deseado Massif, Patagonia, Argentina: characteristics of mineralization and ore-forming fluids. Mineralium Deposita, 46 (3) 257-271 doi:10.1007/s00126-010-0324-5 | Journal (article/letter/editorial) | | the low sulfidation epithermal metallogenetical province of the Deseado Massif, Patagonia, Argentina, represents... Universidad Nacional de La Plata, Paseo del Bosque s/n, B1900FWA La Plata, Argentina S. M. Jovic (*)...Nacional de Investigaciones Científicas y Técnicas, La Plata, Argentina e-mail: sjovic@inremi.unlp.edu.ar F...the low sulfidation epithermal metallogenetical province of the Deseado Massif (Fig. 1), Pingüino represents...responds to not outcropping subvolcanic bodies from La Leona Complex and the spatial relation between the |  | | Journal (article/letter/editorial) | | ORE MINERALS OF THE LA PLATA COLORADO, COMPARED WITH TELLURIDE F. W. MOUNTAINS, OTHER DISTRICTS3...about one hundredpolishedsections of ores from the La Plata 1%iountains in southwestern Col- orado has revealedthat...essentially identical with those exhibited by the La Plata ores. INTRODUCTION. T•E presentinvestigation...Survey,for the opportunity to investigate the La Plata ores,and to Dr. M. N. Short, of the University...THE LA PLATA COLOR.4DO. 325 DISTRICT. 'Duringthe yearsI935-I937, the geology of the La Plata, Coloradomining |  | Jovic, S. M., Guido, D. M., Melgarejo, J. C., Paez, G. N., Ruiz, R., Schalamuk, I. B. (2011) The Indium-Bearing Minerals of the Pinguino Polymetallic Vein System, Deseado Massif, Patagonia, Argentina. The Canadian Mineralogist, 49 (4) 931-946 doi:10.3749/canmin.49.4.931 | Journal (article/letter/editorial) | | Universidad Nacional de La Plata, Paseo del Bosque s/n, B1900FWA, La Plata, Argentina Joan Carles MELGAREJO... Universidad Nacional de La Plata, Paseo del Bosque s/n, B1900FWA, La Plata, Argentina Abstract The...enrichis en Zn, Pb, Ag, Cd, Au, As, Cu, Sn, W et Bi. La minéralisation s’est développée en trois stades:...les plus élevées ont été atteintes au stade Ps2 de la minéralisation, quoique des anomalies importantes...suite à notre étude microanalytique des minerais. La sphalérite ferrifère du stade Ps2, composante prédominante |  | | Report (issue) | | Geology and Ore Deposits of the La Plata District Colorado By EDWIN B. ECKEL with sections by J. S. WILLIAMS...Lithology along the Animas River. _ _ _ Lithology in La Plata district _ _______ Permian system____________________________...along the Animas River._____ Localities in the La Plata quadrangle __ Collections from the Rico formation_____...its tributaries..__________ Localities in the La Plata quadrangle __ Interpretation of the Rico collections...San Juan region as a whole __________________ La Plata district _ . ___ _ ____-____ _ 22 23 23 24 24 |  | | Journal (article/letter/editorial) | | small amounts of bornite, chalcopyrite and pyrite; galena;roscoelite, a vanadiummica; carnotite,a vanadateof...and conglomerates and consistof copper carbonates,galena, pyromorphite,and vanadinite;alsosome'barite,manganese...fossil wood; in two horizons the sandstonescontain galena and cerussite and were formerly worked. In the...abundant plant remains. The mineralsare cerussite,galena,chalcocite(?) and carbonates. The best known depositsof...are thoseof Commern and Mechernich,not far from Aix-la-Chapelle, in Prussia. Lead ores have been mined here |  | | Journal (article/letter/editorial) | | Stuttgart, Juni 2004 Mineralization of La Salvadora deposit, Province of Mendoza, Argentina Nora Rubinstein...Bevins, R. E. (2004): Mineralization of La Salvadora deposit, Province of Mendoza, Argentina. – N. Jb. Miner... Abstract: La Salvadora ore deposit (35 21¢ 16² S; 68 23¢ 22² W), located in the Province of Mendoza...volcanic rocks from a subduction tectonic setting. La Salvadora is a quartz and carbonate vein deposit...carbonatized rhyolite. The ore paragenesis is composed of galena, chalcocite, native silver, chalcopyrite, and bornite |  | De Brodtkorb, M. K., Barbieri, M., Zák, K., Hladiková, J., Tassinari, C., Ametrano, S., Etcheverry, R., De Barrio, R. E., Blanco, M. Del, Danieli, J. C. (1997) Isotope Data on Barite and Celestite Deposits Related to Three Mesozoic Evaporitic Sequences of the Neuquén Basin, Argentina. International Geology Review, 39 (4) 307-316 doi:10.1080/00206819709465273 | Journal (article/letter/editorial) | | (INREMI) , Universidad Nacional de La Plata (UNLP) , Calle 47 No. 522, La Plata, 1900, Argentina b Dipartimento...y Museo-INREMI (UNLP) , Paseo del Bosque s/n , La Plata, 1900, Argentina f Consejo Nacional de Investigaciones...(INREMI) , Universidad Nacional de La Plata (UNLP) , Calle 47 No. 522, La Plata, 1900, Argentina g Facultad...y Museo-INREMI (UNLP) , Paseo del Bosque s/n , La Plata, 1900, Argentina h Dirección General de Minería...(INREMI), Universidad Nacional de La Plata (UNLP), Calle 47 No. 522, 1900 La Plata, Argentina M. BARBIERI, Dipartimento |  | | Report (volume) | | ________________________ Silver: Argentiferous galena 1 ____________________________________________...decreasing value, these species are: Molybdenite Galena (including contained silver) Native gold Sphalerite...the native silver and the richly argentiferous galena that had been recently found in the Tenmile district...COUNTY Locality 1.-Gold Hill district, Copper King mine. Bravoite, cobaltite, garnierite, morenosite, pentlandite...pentlandite, polydymite, and violarite. The Copper King mine is three-fourths mile southwest of Gold Hill and |  | | Report (volume) | | Rico district____________________________________ La Plata district._________________________ Engineer Mountain...maximum background______ ____ __ ___ _____ 2. Mines or mine dumps in the Red Mountain mining district having...maximum background________ __ ____ __. 3. Mines or mine dumps in the Bonanza mining district having maximum...______ __ 4. Mines or mine dumps in the Telluride, Mount Wilson, Rico, La Plata, Engineer Mountain, Burrows...collected from the Bonanza, Upper Uncompahgre, La Plata, and Red Mountain districts contain 2.71, 0.53 |  | | Report (issue) | | petzite, gold, pyrite, chalcopyrite, sphalerite, galena, pyrrhotite, tetrahedrite–tennantite. Distribution:...Colorado, at the Good Hope mine, Vulcan, Gunnison Co.; in the La Plata district, La Plata Co.; and at the Keystone...the Cresson mine, Cripple Creek district, Teller Co.; in California, at the Norwegian mine, near Tuttletown...Tuttletown, and the Jamestown mine, Tuolumne Co.; in Nevada, at the Twin Creeks and Getchell mines, Potosi...Potosi district, Humboldt Co.; from the Outlaw mine, Round Mountain district, Nye Co.; and at the Gus Schave |  | | Report (volume) | | of the name Lower La Plata sandstone of miners for the lower member of the La Plata sandstone of Cross...Lower La Plata sandstone of miners. Pony Express limestone or contact of miners. Upper La Plata sandstone...near top; mostly even-bedded: constitutes Upper La Plata sandstone of local use. Upper unit chiefly green...Character 1, 800-3, 000 Thickness (feet) 45-80 La Plata sandstone. McElmo formation. Dakota sandstone...folio, Names used locally No. 153, 1907 Lower La Plata sandstone of miners. Tipper Jurassic. Upper |  | | Journal (article/letter/editorial) | | : V. Bécu Geological Survey of Canada, 490 rue de la Couronne, Quebec City, QC G1K 9A9, Canada e-mail:...tonnages, as an open pit operation will typically mine large tonnages at lower grades, illustrating the...Similarly, the VMS deposits of the Macuchi Belt in Ecuador are particularly rich in gold (Chiaradia and Fontboté...Lemoine, Quebec; Guha 1984; Guha et al. 1988; La Plata, Ecuador; Chiaradia et al. 2008; Iron King, Arizona;...Lake Camps; Caribou in the Bathurst Mining Camp; La Zarza in the Iberian Pyrite Belt; Greens Creek in |  | | Journal (article/letter/editorial) | | 23:45 31 December 2014 Realgar Jiepaiyu Mine, Shimen, Hunan Province, China T here has been a dramatic...rocks and has been identified as a product of coal-mine fires. Commonly associated minerals include orpiment...Paris, Oxford County, Maine, and the Palermo No. 1 mine, Groton County, New Hampshire. It occurred with...attractive groups of crystals from the Getchell mine, Humboldt County, where individual crystals to 12...specimens have also been recovered from the White Caps mine at Manhattan, Nye County. Here, realgar occurs in |  | | Journal (article/letter/editorial) | | 210'C. The type locality at the Empress Josephine mine, Kerber Creek district, Saguache County, Colorado...A new analysis of material from the May Day mine, La Plata district, Colorado, confirms the above composition...from the analysis locality and the Golden Fleece mine, Lake City, Hinsdale County, Colorado. INrnooucrrox...removed the material from the Empress Josephine mine, Kerber Creek district, Colorado, and who supplied...massiveaggregateof empressitewith a small amount of galena, altaite, and stuetzite on one corner. Much of |  | | Book | | i*4^4- HONOR LABOR VALOR EX-LiBRIS FRANCISCO DE LA GUERRA cocí Digitized by the Internet Archive...SUB5tancias fósiles, Y SERVIR DE INTERPRETACION á la Mineralogía de KIRWAN. PUBLICADO EN EL MERCU ...rio Peruano por D. Joseph Coquette Ea Lima: En la Imprenta Rj. Casa de Niños Expódeos , Erratas...decir: Carbor de fierro* la pag. fierro notables de este tratado. r* V DE LA SOCIEDAD P ^ . pasión...sus á todos los mortales la conjeturas los N nuestro Mercurio sobre la adhesión que le profesarían |  | | Report (issue) | | the outermost zone. The structural setting of La Plata, Colorado, is that of a dome, truncated, south...preference for major uplifts. Silverton, Rico, La Plata, and Creede lie on a tectonic element marked...Calif. Oatman, Ariz. Bagdad, Ariz. Unaweep, Colo. Galena Mt., Colo. Bonanza, Colo. Magdalena, N. M. Matson...29 30 Reference Ore district Sabinal, Chihuahua La Fortuna, Chihuahua Las Cruces, Sonora Oposura, Sonora...Cusihuiriachic, Chih. Naica, Chihuahua Santa Elena, Coahuila La Mexicana, Sonora Batopilas, Chihuahua Los Angeles |  | | Report (volume) | | famous mining districts, such as those at Rico and La Plata, but there is no significant mining being done.............................................. . La Plata District (May Day, Oro Fino) ...................63. 64. CONTENTS Geologic map of the Graysill mine area in the Graysill vanadium-uranium mining district...................................... 43 Map of La Plata mining district showing igneous stocks related...78 Schematic diagram of Au-Ag-Te veins in the La Plata district.. .................................. |  | | Book | | REPRESENTA MINERALES CON ANUNCIO Y QUE RAZONADO DE LA MUESTRAS HAN PRINCIPALES TIPOS DE PCRESTOS... PRODUCIDO. LIMA. IMPRENTA DEL ESTADO, CALLE DE LA RIFA, NÚMERO POR J. ENRIQUÉ DEL CAMPO. 1878. E...E 58. Gs Mw Í INTRODUCCION. UMPLIENDO con la mision que me he impuesto de dar á cónoser las grandes...todos los principales minerales de la República, para enviarla á la Exposicion Universal de Paris, que...calculando que la mayor parte de los minerales peruanos, muy raras veces afectan la forma cristalina |  | | Book | | . . . . . . . . 147 X Contents El Aguilar Mine: An Ordovician Sediment-Hosted Stratiform Lead-Zinc.... . . . . . . . . . . . . . . . . . . 175 The "La Helvecia" Pb, Zn, and Barite Deposit, Argentina A.... . . . . . . . . . . . . . . . . 279 Machcan Mine: A Pb-Zn Ore Deposit in Pucara Sediments of the... Contents Sulfur Isotope Studies in the Zinc-Lead Mine San Vicente, Central Peru H. Gorzawski, L. Fontbote... . . . . . . . . . . . . . . . . . . . . . 353 La Negra-Coquimbana Manganiferous District, Southern |  | Vidal, Conrado Permuy, Guido, Diego M., Jovic, Sebastián M., Bodnar, Robert J., Moncada, Daniel, Melgarejo, Joan Carles, Hames, Willis (2016) The Marianas-San Marcos vein system: characteristics of a shallow low sulfidation epithermal Au–Ag deposit in the Cerro Negro district, Deseado Massif, Patagonia, Argentina. Mineralium Deposita, 51 (6) 725-748 doi:10.1007/s00126-015-0633-9 | Journal (article/letter/editorial) | | district, within the Argentinian Deseado Massif province, has become one of the most significant recent...(INREMI), Universidad Nacional de La Plata, Calle 64 y 120, B1900FWA La Plata, Argentina 2 Department of...northwestern margin of the Deseado Massif geological province, Patagonia, Argentina (Fig. 1). The area has been...to define the region as an Au–Ag metallogenic province. Since ∼2000, the region has produced 4.9 Moz...carried out at the Instituto de Recursos Minerales, La Plata, Argentina. Electron microscope imaging and microprobe |
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