 | Romero, Bárbara, Kojima, Shoji, Wong, Chilong, Barra, Fernando, Véliz, Walter, Ruiz, Joaquin (2011) Molybdenite Mineralization and Re-Os Geochronology of the Escondida and Escondida Norte Porphyry Deposits, Northern Chile. Resource Geology, 61 (1) 91-100 doi:10.1111/j.1751-3928.2010.00150.x | Journal (article/letter/editorial) | | Geochronology of the Escondida and Escondida Norte Porphyry Deposits, Northern Chile Bárbara Romero,1,2...University of Católica del Norte, 2Minera Escondida Ltd, Antofagasta, Chile and Department of Geosciences...the primary Mo-bearing mineral in the Escondida and Escondida Norte deposits were characterized using several...ppm) are recognized particularly in the chlorite-sericite transitional zone between the potassic and sericitic...occurrence of molybdenite are observed in the Escondida deposit: aggregates with Cu-Fe-sulfide minerals |  | | Journal (article/letter/editorial) | | 307–324 Geology of the Escondida Porphyry Copper Deposit, Antofagasta Region, Chile RUBEN A. PADILLA GARZA...Minera Escondida Limitada, avenida de la minera 501, Antofagasta, Chile Abstract The Escondida porphyry...porphyry copper deposit, located in northern Chile, was one of the two largest copper producers of the world...basement of the Precordillera de Domeyko province in northern Chile. We propose that the intrusive stock...stock associated with the mineralization at Escondida was emplaced in a tensional gash formed between sinistral |  | | Journal (article/letter/editorial) | | of Northern Chile Preface FRANCISCO CAMUS † Codelco-Chile, Huérfanos 1270, Santiago, Chile AND JOHN H...University, Corvallis, Oregon 97331 Introduction Chile is known worldwide as the site of one of the largest...production of more than 50 Mt of fine copper. Currently, Chile annually produces about 4.6 Mt of fine copper that...exploration efforts in the Central Andes with emphasis in Chile. During the past 25 years, exploration expenditures...relevant discoveries are the porphyries at La Escondida, Escondida Norte, Zaldívar, Rosario and Ujina in the |  | Riveros, K., Veloso, E., Campos, E., Menzies, A., Véliz, W. (2014) Magnetic properties related to hydrothermal alteration processes at the Escondida porphyry copper deposit, northern Chile. Mineralium Deposita, 49 (6) 693-707 doi:10.1007/s00126-014-0514-7 | Journal (article/letter/editorial) | | alteration processes at the Escondida porphyry copper deposit, northern Chile K. Riveros & E. Veloso & E...using magnetic methods. In the Escondida porphyry Cu deposit of northern Chile, each hydrothermally altered...contrast, pervasively altered rocks (i.e., quartz-sericite and argillic alteration types) exhibit low Kbulk...Universidad de Atacama, Copayapu 485, Copiapó, Chile e-mail: karl.riveros@uda.cl K. Riveros : E. Veloso...del Norte, Avenida Angamos 0610, Antofagasta, Chile W. Véliz Minera Escondida Ltd, Avenida de la Minería |  | Barra, Fernando, Alcota, Hugo, Rivera, Sergio, Valencia, Victor, Munizaga, Francisco, Maksaev, Victor (2013) Timing and formation of porphyry Cu–Mo mineralization in the Chuquicamata district, northern Chile: new constraints from the Toki cluster. Mineralium Deposita, 48 (5) 629-651 doi:10.1007/s00126-012-0452-1 | Journal (article/letter/editorial) | | mineralization in the Chuquicamata district, northern Chile: new constraints from the Toki cluster Fernando...the Chuquicamata–Radomiro Tomic mines in northern Chile. These prospects occur in an area of 5×6 km and...Departamento de Geología, Universidad de Chile, Santiago, Chile e-mail: fbarrapantoja@ing.uchile.cl F....Center of Excellence (CEGA), Universidad de Chile, Santiago, Chile H. Alcota : S. Rivera Exploraciones Mineras...Mineras Andinas S.A., Santiago, Chile V. Valencia School of Environment, Washington State University, Pullman |  | | Book | | label: Aerial view of the Bingham Canyon copper mine, Kennecott Utah Copper, September 2003. Photo courtesy...and CopperGold Deposits at Los Pelambres, Central Chile José Perelló, Richard H. Sillitoe, Constantino...of the Río Blanco-Los Bronces District, Central Chile: Development of World’s Greatest Known Concentration...Northern Chile Geologic Overview of the Escondida Porphyry Copper District, Northern Chile Geology of...N. Moreto, André Luiz Silva Pestilho, Mineral Province, Brazil Gustavo Henrique Coelho de Melo, Marco |  | | Journal (article/letter/editorial) | | Porphyry Cu Magmatism in the EscondidaArea, Northern Chile* JEREMY P.RICHARDS? Department of EarthandAtmospheric...ized centers in theEscondida regionof northern Chile;alldatesarereported with errors.At theChimborazo...z porphyry intrusion.At theZaldfvar porphyry Cu mine,zirconandbiotitehavebeenanalyzed froma similars...AttheEscondida deposit, thereportedly synmineralization Escondida porphyry isdatedbyUPbat37.9ñ 1.1Ma,whereas thereportedly...singlepulseof synmineralization magmatism in the Escondida districtat -38 Ma, followed byminorlargelynonmineralizing |  | | Journal (article/letter/editorial) | | 271–305 Geologic Evolution of the Escondida Area, Northern Chile: A Model for Spatial and Temporal Localization...Cu deposits at Escondida, Zaldívar, and Chimborazo (Cordillera de Domeyko, northern Chile). The purpose...explain the giant scale of mineralization at Escondida and provide predictive tools for exploration in...intermediate to felsic Permo-Carboniferous volcanism (La Tabla Formation), and these rocks appear to constitute...throughout much of the porphyry belt of northern Chile. Geochemically, they are I-type in character, but |  | | Book (volume) | | existence o f a new unconformity-vein style uranium province in the Proterozoic of the Great Sandy Desert....Iran ian P o rp h y ry C u-M o-A u D eposits Brent LA. Mclnnes, Noreen J. Evans, Frank Q, Fut Steve Garwin...lm alyk (K a rm ak y r-D a ln e e ) and S au k b u la k C u-A u P o rp h y ry System s, U zbekistan IgorM...the largest deposits in any established porphyry province. For a discussion of the accepted terminology...localised in the U.S. “South-west”， and in northern Chile and southern Peru，and were Cu-Mo orebodies (Gilmour |  | | Journal (article/letter/editorial) | | deposits include those of the Maricunga belt in Chile, formed at a depth of <1 km (Muntean and Einaudi...Utah (Redmond and Einaudi, 2010), El Salvador in Chile (Gustafson and Quiroga, 1995), Pebble in Alaska...(Gregory, 2017), and Río Blanco-Los Bronces in Chile (Deckart et al., 2013). The biotite in these veins...coating of sulfides bornite ± pyrite chlorite ± sericite B Quartz veins; anhedral or May have a centerline...2004; Landtwing et al., 2010), Chuquicamata in Chile (Rusk et al., 2011; Bennett et al., 2014), Elatsite |  | Perello, J., Carlotto, V., Zarate, A., Ramos, P., Posso, H., Neyra, C., Caballero, A., Fuster, N., Muhr, R. (2003) Porphyry-Style Alteration and Mineralization of the Middle Eocene to Early Oligocene Andahuaylas-Yauri Belt, Cuzco Region, Peru. Economic Geology, 98 (8) 1575-1605 doi:10.2113/gsecongeo.98.8.1575 | Journal (article/letter/editorial) | | Peru JOSÉ PERELLÓ,† Antofagasta Minerals S.A. Ahumada 11, Oficina 602, Santiago, Chile VÍCTOR CARLOTTO...Universidad Nacional San Antonio Abad del Cuzco. Avenida de la Cultura, Cuzco, Perú ALBERTO ZÁRATE, PEDRO RAMOS...CABALLERO, Minera Anaconda Perú S.A. Avenida Paseo de la República 3245, Piso 3, San Isidro, Lima 27, Perú...AND RICARDO MUHR Antofagasta Minerals S.A. Ahumada 11, Oficina 602, Santiago, Chile Abstract Originally...rapidly emerging as an important porphyry copper province. Field work by the authors confirms that mineralization |  | | Book | | Radomiro Tomic Porphyry Copper Deposit, Northern Chile. Patricio Cuadra and Francisco Cam us.............Agua Rica Porphyry Cu-Mo-Au Deposit，Catamarca Province, Northwestern Argentina. Part 1 : Exploration...Rosario Copper Porphyry Deposits, CoUahuasi District Chile. Claudio Bisso B, Manuel Durdn andAquiles Gonzales...a deposit, but rather the engineering ability to mine on a large scale at low cost, and simultaneously...all within the US "South west" and in northern Chile and neighbouring southern Peru. With the exception |  | | Journal (article/letter/editorial) | | and the red ones are Ar–Ar ages of hydrothermal sericite from the host rocks). See Table 1 for references...55 Ma 17 & 21 Ma (sericite and biotite Ar–Ar) 15.17 ± 0.22 Ma 16.5 ± 0.5 Ma (sericite Ar–Ar) 9.8 ± 0.06...plagioclase, Bt = biotite, Qz = quartz, Ser = sericite, Opq = opaque. (5–10 modal %) and amphibole (0–5...micro-veinlets of quartz, quartz–sulphide, sulphides, sericite, carbonates and sulphates (Calagari et al. 2001)...alteration zone is characterized by the formation of sericite (40–50 modal%), secondary quartz (30–50 modal |  | Huang, Xiao-Wen, Sappin, Anne-Aurélie, Boutroy, Émilie, Beaudoin, Georges, Makvandi, Sheida (2019) Trace Element Composition of Igneous and Hydrothermal Magnetite from Porphyry Deposits: Relationship to Deposit Subtypes and Magmatic Affinity. Economic Geology, 114 (5) 917-952 doi:10.5382/econgeo.4648 | Journal (article/letter/editorial) | | Survey of Canada, Natural Resources Canada, 490 rue de la Couronne, Québec, Québec G1K 9A9, Canada 5 Agnico...ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) and then classified by partial least squares-discriminant...ablation-inductively coupled plasma-mass spectrometry (LA-ICPMS). The geochemical data were investigated by...Yonsei University user Western South America Bajo de la Argentina Cu-Au Production and Miocene High-K Dacite...Mo, 2016) and 6.10 g/t Ag Escondida Norte Chile Cu-Mo Production and Eocene Calc-alkaline |  | | Journal (article/letter/editorial) | | and replacement of ferro-magnesian minerals by sericite and chlorite, accompanied by the formation of...of secondary quartz and pyrite. The sericite content reaches 40–70%. 297 (Rezai Aghdam and Sohrabi 2010)...Jinduicheng– Huanglongpu region of the Shaanxi province, China. This sample is used internationally as...Pelambres (Bertens et al. 2003), and Escondida and Escondida Norte (Romero et al. 2011), and the general...y 40Ar–39Ar del porfido de Cu–Mo Los Pelambres, Chile Central, in 10th Congreso Geológico Chileno, Concepción |  | | Book | | org/details/geologyofchile0000unse The Geology of Chile • The Geologica l Society of London Books Editorial...T. & GIBBO, s, W . (eds) 2007 . The Geology of Chile. The Geological Society, London. CHARRIER, R., PINTO...the Andean Orogeo in Chile. Jn: MORENO, T. & GrnsoNs, W. (eds) The Geology of Chile. The Geological Society...Society, London, 21-114. The Geology of Chile EDITED BY TERESA MORENO Earth Sciences Institute 'J aume...\ii . Grosjean 13. Field excursion from central Chile to the Atacama De<,crt. W. Gibbons & -1. Moreno |  | | Book | | is the minimum grade at which it is worthwhile to mine a certain deposit. Everything below it (low-grade...chalcopyrite (brass) from the Friedrich-Christian Mine in Wildschapbach, Black Forest (Germany) (photo...black Fig. 1.2 Chalcopyrite on quartz. Silberwiese Mine, Oberlahr, Westerwald (Germany) (photo © Monika...CuS (Fig. 1.4). Fig. 1.5 Chalcocite from Mammoth Mine, Mount Isa-Cloncurry Territory (Queensland, Australia)...Introduction Fig. 1.6 Tetrahedrite from Wenzel Mine in Oberwolfach, Black Forest (Germany) (photo © |  | | Report (issue) | | .B3 Graph showing dates associated with all the mine sites on the U.S. Environmental Protection Agency’s...production, U.S. apparent consumption, and U.S. mine production of antimony from 1900 to 2012............................F2 Graph showing world cobalt mine and refinery production and apparent consumption.....................F2 Graph showing world cobalt mine production from 1950 to 2011......................F4. Pie chart showing percentage of world cobalt mine production in 2011, by country................. |
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