 | | Journal (article/letter/editorial) | | complete porphyry coppersystems. Examples from Chile, Argentina, and elsewhereare used to aid in the...al extensionsas great as 8 km. At Chuquicamata,Chile, a major high-anglefault may have cut the porphyry...porphyry systemis believedto be exposedat Los Loros, Chile. There a zone of molybdenum-rich and copper-poorpotassiumsilicate...erodedstratovolcanoes, as at Cerro Marquez in northern Chile. Such zones are interpreted as the columns of a...exemplifiedby the Los Pelambresdeposit(Fig. 2) in Chile (Sillitoe, 1973). Knowledgeof the characterand |  | Markowski, Agnès, Vallance, Jean, Chiaradia, Massimo, Fontboté, Lluìs (2006) Mineral zoning and gold occurrence in the Fortuna skarn mine, Nambija district, Ecuador. Mineralium Deposita, 41 (4) 301-321 doi:10.1007/s00126-006-0062-x | Journal (article/letter/editorial) | | zoning and gold occurrence in the Fortuna skarn mine, Nambija district, Ecuador Received: 24 February 2005...May 2006 # Springer-Verlag 2006 Abstract The Fortuna oxidized gold skarn deposit is located in the northern...northern part of the Nambija gold district, southern Ecuador. It has been subdivided into four mineralized...which are named from north to south: Cuerpo 3, Mine 1, Mine 2, and Southern Sector. Massive skarn bodies...intrusion which crops out below the skarn bodies in Mine 2 and the Southern Sector. Endoskarn alteration |  | Vallance, Jean, Fontboté, Lluís, Chiaradia, Massimo, Markowski, Agnès, Schmidt, Susanne, Vennemann, Torsten (2009) Magmatic-dominated fluid evolution in the Jurassic Nambija gold skarn deposits (southeastern Ecuador) Mineralium Deposita, 44 (4) 389-413 doi:10.1007/s00126-009-0238-2 | Journal (article/letter/editorial) | | for the precipitation of late comb quartz and calcite in cavities and veins and indicate mixing with...range of 21.1 to 17.3 wt.% eq. CaCl2, trapped in calcite of late veins and interpreted as basinal brines...Aslund 1998). The Nambija oxidized gold skarn district is one of the main gold producers of Ecuador (see...40 km west of the Peruvian border (Fig. 1). The district includes several mines detailed in Fig. 1 and...The results of previous studies on the Nambija district (Vallance et al. 2003; Fontboté et al. 2004; Markowski |  | | Journal (article/letter/editorial) | | LONG-LIVED HYDROTHERMAL SYSTEM IN THE FRESNILLO SILVER DISTRICT, MEXICO: CONSTRAINTS FROM 40Ar/39Ar GEOCHRONOLOGY...and dikes are the youngest igneous rocks in the district. Spatial association of Tertiary volcanic rocks...sulfate alteration, and epithermal veins makes the district ideal for evaluating the temporal relations between...31.04 ± 0.05 Ma. Dating of orthoclase from the Fortuna quartz-monzonite was problematic due to excess...well after emplacement of the dated phase of the Fortuna stock and, consequently, it cannot be the source |  | 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) | | Minerals S.A. Ahumada 11, Oficina 602, Santiago, Chile VÍCTOR CARLOTTO, Departamento de Geología, Universidad...Minerals S.A. Ahumada 11, Oficina 602, Santiago, Chile Abstract Originally known for its Fe-Cu skarn mineralization...rapidly emerging as an important porphyry copper province. Field work by the authors confirms that mineralization...early Oligocene porphyry copper belt of northern Chile and that the process of subduction flattening in...southern Peru also may have taken place in northern Chile between ~45 and 35 Ma. Introduction THE ANDAHUAYLAS-YAURI |  | Skirrow, R.G, Camacho, A, Lyons, P, Pieters, P.E, Sims, J.P, Stuart-Smith, P.G, Miró, R (2000) Metallogeny of the southern Sierras Pampeanas, Argentina: geological, 40Ar–39Ar dating and stable isotope evidence for Devonian Au, Ag–Pb–Zn and W ore formation. Ore Geology Reviews, 17 (1) 39-81 doi:10.1016/s0169-1368(00)00004-4 | Journal (article/letter/editorial) | | rare-metal-enriched pegmatites were succeeded by a province-wide metallogenic epoch and concurrent tectonic...mesothermal lode Au Ž"Cu " Ag. in the Sierra de Las Minas and Sierras de Cordoba yields ´ Devonian 40Ar–...Ag–Pb–Zn sulfide–quartz veining in the El Guaico district Ž386 " 4 Ma, sericite., and W-bearing quartz vein...well exposed in the southern ranges of La Rioja Province ŽPankhurst et al., 1996, 1998; Pieters et al....including the host to Ni–Cu sulfide mineralization at Las Aguilas in the Sierras de San Luis ŽFig. 1., occurred |  | | Report (volume) | | Quicksilver Deposits of Chile GEOLOGICAL SURVEY BULLETIN 964-E Quicksilver Deposits of Chile By J. F. McALLISTER...cooperation with the Departamento de Minas y Petroleo, Chile, under the auspices of the Interdepartmental Committee...________ Barite_______-----_______-____________ Calcite..______________________._____ Chalcocite. _____________________...________________________________________ Los Mantos mine--_.-___-_--_____-____-_____-_-_---_____-_Champurria...topographic map of the Punitaqui quicksilver Page district, Coquimbo, Chile___________--____--_________ In |  | Ossandon C., G., Freraut C., R., Gustafson, L. B., Lindsay, D. D., Zentilli, M. (2001) Geology of the Chuquicamata Mine: A Progress Report. Economic Geology, 96 (2) 249-270 doi:10.2113/gsecongeo.96.2.249 | Journal (article/letter/editorial) | | of the Chuquicamata Mine: A Progress Report GUILLERMO OSSANDÓN C., CODELCO-Chile, Gerencia Exploraciones...Santiago, Chile ROBERTO FRÉRAUT C., CODELCO-Chile, Superintendencia Geología, Chuquicamata, Chile LEWIS... DARRYL D. LINDSAY, SRK Consultores, Santiago, Chile AND MARCOS ZENTILLI Department of Earth Sciences...Canada B3H 3J5 Abstract Chuquicamata, in northern Chile, is the world’s greatest copper orebody. It was...about the 2,800-m elevation in the Atacama Desert of northern Chile, some 240 km northeast of Antofagasta |  | | Report (issue) | | Gavilanes Tungsten District El Antimonio District Magdalena District Cananea District Preliminary Deposit-Type...or to a group of closely-spaced deposits. Two district records have been included (MX00018 and MX02161)...or names of individual orebodies. DISTRICT/AREA Informal district name used in the literature. Names...geochemistry and mineralization of the Washington mine area, Huepac, Sonora [abs.] in Najera-Garza, J....related to pegmatites at the San Antonio tungsten mine, Baviacora, Sonora, Mexico [abs.]: Geological Society |  | | Book (volume) | | After moving to Australia in 】 979, Ross, as a District Manager with CRA Exploration, led the team that...existence o f a new unconformity-vein style uranium province in the Proterozoic of the Great Sandy Desert....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...Cook and Porter;all in this publication) and in Chile, Argentina and Peru in South America (see Camus; |  | | Journal (article/letter/editorial) | | 1•88, pp. 1583-1596 Ore Deposits at the Fresnillo Mine, Zacatecas,Mexico DELFINO C. RUVALCABA-RUIZ PasajeE...increasingelevation. Fluid inclusionsin quartz, calcite, and sphaleritecontaintwo phases,water and water...between240 ø and 350øC while shallowand distalquartz, calcite,and sphaleritefrom veins yield temperatures between140ø...surface)level. Introduction hills, Loma de la Fortuna, Cerro Proafio, and Cerro Populo, with reliefs...veins,of which more than 30 ental (Fig. 1). The mine area,immediatelysouthand havebeenmajorore producers |  | Chiaradia, Massimo, Vallance, Jean, Fontboté, Lluis, Stein, Holly, Schaltegger, Urs, Coder, Joshua, Richards, Jeremy, Villeneuve, Mike, Gendall, Ian (2009) U–Pb, Re–Os, and 40Ar/39Ar geochronology of the Nambija Au-skarn and Pangui porphyry Cu deposits, Ecuador: implications for the Jurassic metallogenic belt of the Northern Andes. Mineralium Deposita, 44 (4) 371-387 doi:10.1007/s00126-008-0210-6 | Journal (article/letter/editorial) | | Pangui is a recently discovered porphyry Cu–Mo district. The geology of the Subandean zone in southeastern...veins postdating gold deposition) of the Nambija district are all indistinguishable from each other within...minerals. The new Jurassic age for the Nambija district is slightly younger than the 40Ar/39Ar and Re–Os...magmatic–hydrothermal minerals from the Pangui district, which range between 157 and 152 Ma. Mineralization...et al. 2005). The porphyry-related, gold skarn district of Nambija has been one of the main gold producers |  | | Report (issue) | | 0000eeceescececscdbeen structural map, or Rico; Colorado, .district: . ..+.5. ssw Fea ive Res five voles ow tod...cureieunertiae ote teers 12 Plan. and section of Sunlight district, Wyoming, 16 4, tires sheik aes ........02+2...Mexico Aenea SmmSCLUCLUTAlEMaprOrsOllyentons district ColoLadoum Ole Generalusectionsthroupheoilyentonidistricte...40 13. Structural map and section, Goldfield district, Nevada................0.eeeeeeee 47 AeA ticliness...Cross¥sections, 32. Block diagram and section, Mogollon district, ONG fal Ress (ec eee en Rear erate nen tteannun |  | Simón, Valeria, Arnosio, Marcelo, Trumbull, Robert B., Caffe, Pablo, Rocholl, Alexander, Sudo, Masafumi, Lucassen, Friedrich, Huidobro, Facundo (2021) Geology, geochemistry and geochronology of Lindero porphyry gold deposit in the Southern Puna plateau, Argentina. Journal of South American Earth Sciences, 105. 103047pp. doi:10.1016/j.jsames.2020.103047 | Journal (article/letter/editorial) | | (clinopyroxene + magnetite + K-feldspar + quartz + 37 calcite ± plagioclase), (ii) K-silicate (K-feldspar + quartz...± biotite ± anhydrite) and (iii) 38 chlorite-calcite alteration. The highest ore grades are linked to...porphyry gold deposits in the 69 Maricunga belt, Chile, and with the porphyry copper deposits of Argentina...porphyry copper deposits in the frontal-arc setting of Chile, notably by the lack 71 of an adakite-like signature...uncommon. They were defined in the Maricunga belt of Chile in the early 79 1980s (Vila et al., 1991; Vila |  | | 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...History of the Río Blanco-Los Bronces District, Central Chile: Development of World’s Greatest Known...Chuquicamata District, Northern Chile Geologic Overview of the Escondida Porphyry Copper District, Northern...Northern Chile Geology of the Bingham Canyon Porphyry Cu-Mo-Au Deposit, Utah Geology and Exploration Progress |  | Pizarro, H., Campos, E., Bouzari, F., Rousse, S., Bissig, T., Gregoire, M., Riquelme, R. (2020) Porphyry indicator zircons (PIZs): Application to exploration of porphyry copper deposits. Ore Geology Reviews, 126. 103771pp. doi:10.1016/j.oregeorev.2020.103771 | Journal (article/letter/editorial) | | Católica del Norte, Av. Angamos 0610, 7 Antofagasta, Chile. 8 2 GET, IRD-CNRS-CNES-UPS, 14 avenue E. Belin...lower Oligocene metallogenic 32 belt of northern Chile, were determined in order to validate the use of...Eocene to Oligocene metallogeny belt, 48 Northern Chile, Porphyry Copper Deposit, non-mineralized intrusive...body. 49 50 1. Introduction 51 In northern Chile and southern Peru, porphyry copper deposits (PCDs)...lower Oligocene 118 porphyry belt of Northern Chile. These are the Chuquicamata, Mirador, Esperanza |  | | Journal (article/letter/editorial) | | crust below these mineral belts (Howard, 2003), district- to deposit-scale stream sediment and lithogeochemical...al., 2003), and stratigraphy and structure of a district located along a northeast-striking lineament (Peters...investigations on neighboring deposits in a single district are more problematic and most likely are due to...by a paper (Yigit et al., 2003) on the Gold Bar district (50 t Au) in the Battle Mountain-Eureka trend...Au). The next two papers (Tosdal et al., 2003; Fortuna et al., 2003) focus on deposits in the Getchell |  | | Report (issue) | | element principally sought were listed by the State Mine Inspector of which four actually produced some gold..................... 23 Eureka district................. 23 Hillside mine ~..............................and Dexter mine................................................................ 25 Cowboy mine........................ 26 Crosby mine 26 Southern Cross mine 27 Mammoth or Hubbard mine................................................. 27 Prescott district 28 Bullwhacker mine.................................... |  | | Journal (article/letter/editorial) | | boiling. However, banding in paragenetically younger calcite indicates that boiling was episodic in addition...fluid inclusions in fluorite from the Getchell mine is an artifact of boiling and a depth of ≤980 m...crystalline white-quartz vein in the DZ Fault, Twin Creeks mine contains cogenetic liquid-rich and vapor-rich fluid...Carlin-type gold mineralization at the Twin Creeks mine. Keywords: Carlin-type gold deposits; fluid boiling;...Latestage orpiment and banded calcite containing realgar from the Getchell mine are described and compared |  | Izaguirre, Aldo, Iriondo, Alexander, Kunk, Michael J., McAleer, Ryan J., Atkinson, William W., Martínez-Torres, Luis M. (2017) Tectonic Framework for Late Cretaceous to Eocene Quartz-Gold Vein Mineralization from the Caborca Orogenic Gold Belt in Northwestern Mexico*. Economic Geology, 112 (6) 1509-1529 doi:10.5382/econgeo.2017.4519 | Journal (article/letter/editorial) | | orogenic gold belt is a large gold metallogenic province located in the North American Cordillera that...Caborca orogenic gold belt is a gold metallogenic province located in the North American Cordillera that...Guadalupana La Reforma rt e (G COGB o f a for Tameapa Las Higueras Durango li rn r Su fo nia a if ia...belt of the United States and Mexico and related mine sites and prospects are also shown. Downloaded...Age ~114–72 Ma Age ~160–152 Ma 30° Nacozari Fortuna San Francisco-Llano Northwestern/ Nevada Grass |  | | Report (volume) | | Surficial enrichment................................. Mine descriptions......................................Buenavista group................................. Cadiz mine....................................... Taratana............ Charco Redondo mine.............................. Caaualidad mine..................................... Lucia mine .....Co................................ Mamie] mine........ 0 ....................327 328 328 328 330 332 333 334 IV CONTENTS Mine descriptions Continued. Baire-Los Negros area |  | | 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...Grosjean 13. Field excursion from central Chile to the Atacama De<,crt. W. Gibbons & -1. Moreno 329 |  | | Report (issue) | | 9.65 Z=8 X-ray Powder Pattern: Chuquicamata, Chile. 9.60 (10), 3.04 (10), 4.30 (8), 1.71 (8), 6.85...16 0.90 Total 100.00 100.00 (1) Chuquicamata, Chile; recalculated to 100% after deduction of insoluble...gypsum, calcite, Distribution: In Chile, in Antofagasta, from Chuquicamata; at the Fortuna mine, east...at the Santa Catalina mine, Sierra Gorda district; and from the El Guanaco mine, near Taltal. In Australia...quarry, near Swan Hill, Victoria, at the Spring Creek mine, near Wilmington, South Australia, from Mooloo Station |  | | Journal (article/letter/editorial) | | Lúgar and Sierra del Corque, near the village of Fortuna, was selected. This area includes some of the sections...Bajocian–Lower Callovian of all the Mediterranean Province. In this study, four http://dx.doi.org/10.1016/j...the Sierra del Corque, lie near the village of Fortuna, in the eastern part of the Murcia Region (southern...the taxonomic issues. 30SXH592309; sheet 892, Fortuna). This section has been the subject of previous...analysed is 6 km NW of Fortuna village and 900 m W of the road between Fortuna and La Garrapacha (MGRS |  | Rivas-Romero, Constanza, Reich, Martin, Barra, Fernando, Gregory, Daniel, Pichott, Sergio (2021) The Relation between Trace Element Composition of Cu-(Fe) Sulfides and Hydrothermal Alteration in a Porphyry Copper Deposit: Insights from the Chuquicamata Underground Mine, Chile. Minerals, 11 (7) 671 doi:10.3390/min11070671 | Journal (article/letter/editorial) | | Deposit: Insights from the Chuquicamata Underground Mine, Chile Constanza Rivas-Romero 1,2, *, Martin Reich 1...Deposit: Insights from the Chuquicamata Underground Mine, Chile. Minerals 2021, 11, 671. https://doi.org/ 10...Matemáticas, Universidad de Chile, Plaza Ercilla 803, Santiago 8370450, Chile; mreich@cec.uchile.cl (M.R...Físicas y Matemáticas, Universidad de Chile, Santiago 8370450, Chile Department of Earth Sciences, University...Casa Matriz, Huérfanos 1270, Santiago 8370450, Chile; spich001@codelco.cl Correspondence: constanzarivasromero@gmail |
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