 | GarcĂa, M., Maksaev, V., Townley, B., Dilles, J. (2017) Metallogeny, structural evolution, post-mineral cover distribution and exploration in concealed areas of the northern Chilean Andes. Ore Geology Reviews, 86. 652-672 doi:10.1016/j.oregeorev.2017.01.025 | Journal (article/letter/editorial) | | Universidad de Chile. Av. Tupper 2007, Santiago, Chile. (2) Departamento de GeologĂa, Universidad de Chile, Plaza...Plaza Ercilla 803, Santiago, Chile. (3) College of Earth, Ocean and Atmospheric Sciences, Oregon State University...been reported to date, due to the fact that the area is largely covered by post-mineral strata. We integrate...known, allowing better criteria for decisions on mine concession acquisitions, plan geophysical and geochemical... Quellaveco and Toquepala, whereas in northern Chile, the main deposits are Mocha, Cerro Colorado, Spence |  | | Journal (article/letter/editorial) | | SuyosâAnimas deposits, and 1,290 ppm and 3.3 for San Vicente deposit. The same content and ratio of composite...concentrates are as follows: 1,080 ppm and 2.1 at San Lorenzo; 584 ppm and 1.7 at Bolivar; 499 ppm and 1.23...indium, similarly to those of the San Vicente deposit. Both the San Vicente and Potosi deposits are rich...PERU Oruro Sn-polymetallic ore belt Arica BOLIVIA Potosi CHILE Lake Uyuni Border Cities Atocha Lakes...of 266 tons indium for Carguaicollo, Huari Huari, San Vicente and Bolivar mines in Bolivia. This amount |  | | Journal (article/letter/editorial) | | . . . . . . . . 249 I I I . General S u m m a r y and Conclusions . . . . . . . . . . . . . . . . .... . . . . . . . . . . 276 IV. B i b l i o ~ p h y ......................................................horizontal section drawn from the island of San Lorenzo off the Pacific coast at Callao to the River...tropical character of the flora becomes pronounced. At San tlamon the Tarma River is joined by the Tulomayo...afforded by the kitchen-middens of the island of San Lorenzo. Little attention, however, seems to have been |  | Barra, Fernando, Alcota, Hugo, Rivera, Sergio, Valencia, Victor, Munizaga, Francisco, Maksaev, Victor (2013) Timing and formation of porphyry CuâMo 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...ChuquicamataâRadomiro Tomic mines in northern Chile. These prospects occur in an area of 5Ă6 km and are completely covered...Sericitic alteration is relatively restricted to late quartzâpyrite veins (D-type veins). Previous KâAr geochronology...Departamento de GeologĂa, 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 |  | | Journal (article/letter/editorial) | | lava and breccia with lesser aphyric to feldspar-quartz porphyritic felsic volcanic rocks. These volcanic...1974; Cobbing et al., 1981; Atherton et al., 1983), Chile (Coast Range; Vergara et al., 1995), and Argentina...MA SSI F AMOTAPE RANGE LB 73 Ecuador Study area Huan cabam 6o B WE SU E AN NT S MO ON ER SSI...69 Peru 6o 10 o 81 100 o 200 300 400 Chile CORDILLERA DE LA COSTA 77 o IN DE TER PR MO ES...Pacific Ocean Las Lomas 500 E Km CHIL A 0 study area TG3 o 5S Piura Massi f ci Pa BRAZIL O Olmos |  | | Journal (article/letter/editorial) | | H A T E M I N E R A L I Z A T I O N F R O M THE H Y P O G E N E LA V A N G U A R D I A K A O L I N D E...17219, Av. Providencia 2133 Of. 207, Santiago, Chile (Received 21 April 1994; revised 3 April 1995) ...Illapel, Chile, dioritic and andesitic rocks of Cretaceous to Paleocene age from the Unidad San Lorenzo Formation...chemical investigations of channel samples from this mine, involving a combination of optical microscopy,...White (1991). Various forms of silica such as quartz, tridymite, cristobalite, chalcedony and opaline |  | Campbell, I. H., Ballard, J. R., Palin, J. M., Allen, C., Faunes, A. (2006) U-Pb Zircon Geochronology of Granitic Rocks from the Chuquicamata-El Abra Porphyry Copper Belt of Northern Chile: Excimer Laser Ablation ICP-MS Analysis. Economic Geology, 101 (7) 1327-1344 doi:10.2113/gsecongeo.101.7.1327 | Journal (article/letter/editorial) | | Chuquicamata-El Abra Porphyry Copper Belt of Northern Chile: Excimer Laser Ablation ICP-MS Analysis* IAN H....Superintendencia de Geologia Codelco-Chile, Division Chuquicamata, Chuquicamata, Chile Abstract This study reports...Chuquicamata-El Abra porphyry copper belt of northern Chile. Zircon U-Pb isotope ages of 22 intrusions from...Picos-FortunaâPajonal-El Abra igneous complex, Radomiro Tomic mine, and Opache prospect were determined by excimer...5.5 m.y. Only the youngest of these, the El Abra mine porphyry, is ore bearing. The five units that were |  | | Journal (article/letter/editorial) | | Cordillera plutons, Chile (45°â48° S) M. SUĂREZ* & R. DE LA CRUZ Servicio Nacional de GeologĂa y MinerĂa, Avenida...Avenida Santa MarĂa 0104, Santiago, Chile (Received 20 January 2000; accepted 14 September 2000) Abstract...satellite plutons of the AysĂŠn Region, of southern Chile between latitudes 45° and 48° S, combined with previous...rocks from the region between 45° and 48° S in Chile shows a gap in Palaeocene ages that may correlate...proportion of the Patagonian Cordillera of southern Chile. They form a continuous belt between latitudes 40° |  | | Report (issue) | | Aeromagnetic, and Gravity Maps of the Hillsboro and San lorenzo Quadrangles, Sierra and Grant Counties, New Mexico...Aeromagnetic, and Gravity Maps of the Hillsboro and San Lorenzo Quadrangles, Sierra and Grant Counties, New Mexico...Descriptions of component maps of the HillsboroSan Lorenzo mineral resource assessment--------------Geology...location and general geology of the Hillsboro and San Lorenzo quadrangles and adjacent areas 2. Locality map...Index map showing location of the Hillsboro and San Lorenzo quadrangles and the aeromagnetic map of garts |  | Camus, Francisco, Boric P., Ricardo, Skewes, Milka Alexandra, Castelli, Juan Carlos, Reichhard, Enrique, Mestre, Andres (1991) Geologic, structural, and fluid inclusion studies of El Bronce epithermal vein system, Petorca, central Chile. Economic Geology, 86 (6) 1317-1345 doi:10.2113/gsecongeo.86.6.1317 | Journal (article/letter/editorial) | | Santiago,Chile RICARDO BORIC, CompaniaMineraDisputadade Las Condes,Pedrode Valdivia291, Santiago,Chile MILKA...ALEXANDRA SKEWES, Casilla 970, Correo Central, Santiago,Chile JUANCARLOSCASTELLI, EmpresaNacionalde Petroleo-Magallanes...Petroleo-Magallanes, loseNogueira1101,PuntaArenas,Chile ENRIQUE REICHHARD, AND ANDRESMESTRE CompaniaMineraEl...CompaniaMineraEl Bronce,Carmencita240, Santiago,Chile Abstract The E1Bronceepithermalveinsystem,locatedin the westernfoothillsof...caldera is the mostprominent geologicfeature in the area. Faults andfracturesrelatedto the calderaprovid |  | Kelm, U., Pincheira, M., OyarzĂşn, J., Sucha, V. (2001) CombarbalĂĄ advanced argillic alteration zone, Chile: geology, geochemistry, mineralogy and mineralization potential. Applied Earth Science, 110 (2) 91-102 doi:10.1179/aes.2001.110.2.91 | Journal (article/letter/editorial) | | CombarbalĂĄ advanced argillic alteration zone, Chile: geology, geochemistry, mineralogy and mineralization...OyarzĂşn and V. Sucha Synopsis Central and northern Chile hosts several well-known epithermal precious-metal...precious-metal deposits associated with kaoliniteâaluniteâquartz alteration, but only in the CombarbalĂĄ district...attractive original textures. Fig. 1 Location of study area and geological map modified after Rivano and Sepâ...4, Arqueros Formation (Early Cretaceous); 5, San Lorenzo Intrusives (Upper CretaceousâPalaeocene); 6, |  | | Journal (article/letter/editorial) | | of mineral deposits. Sixteen mining districts in Chile, and 24 in Argentina, were attributed to the seismically...zones roughly parallel to the axis of the Peru-Chile trench (Carachas-Portillo, Choquelimpie, Iquique...Ulriksen (1990) for the northern and central part of Chile and from Mapa Minero (1966) for the northwestern...information was obtained from Mapa GeoloĂgico de Chile (1982) and Mapa GeoloĂgico de la RepuĂblica Argentina...sections) perpendicular to the axis of the PeruÂąChile trench, which enabled us to distinguish between |  | | Journal (article/letter/editorial) | | Geology of Aconcagua Province and Its Relationship to the Central Valley Graben, Chile W. D CARTER and LUIS...Investigations Geologicas, Santiago, Chile Structural Geology of Aconcagua Province and Its Relationship to the...the Central Valley Graben, Chile Abstract: Aconcagua Province is herein divided into three major structural...recognized farther south. The coastal structural province includes the Coastal Cordillera which is underlain...coastal margin, Along the eastern edge of the province is the Los Angeles fault zone, a wide, poorly |  | | Report (issue) | | 99.90 100.22 100.00 28.18 (1) Molly Gibson mine, Colorado, USA; corresponds to (Cu9.36 Ag2.11 Zn1...(As3.82 Sb0.02 )ÎŁ=3.84 S13.00 . (2) San Lorenzo mine, Santiago, Chile; corresponds to (Cu10.17 Zn1.43 Fe0...calcite, dolomite, siderite, barite, fluorite, quartz. Distribution: From numerous localities; rarer...Just, and elsewhere. An ore mineral in the Gortdrum mine, near Tipperary, Co. Tipperary, Ireland. In Germany...Colorado, from many localities, including the Freeland mine, Idaho Springs, Clear Creek Co.; in the Central |  | | Journal (issue) | | Park, New Mexico i the acting caretaker of the San Pedro Mine in Santa Fe County, and along with his son...Phillip is actively exploring the mine for minerals. The San Pedro Mine is perhaps best known for producing...come up with some very unusual Japan law twinned quartz crystals that are sceptered and in some cases have...surface exposure at the mine to produce some very nice, single, sceptered quartz crystals with amethyst...(5 mm to 2 cm) as single crystals on matrix with quartz crystals. The color Continued on page 6 W eifswurst |  | | Journal (article/letter/editorial) | | ServicioNacionalde Geologfay Minerfa,Casilla10465,Santiago,Chile Abstract Eightygalenasamples fromdifferentmineraldeposits...different ore depositsfrom 48 mining districtsin Chile are presentedhere (Fig. 1). The selected depositsrepresent...Jurassicto Pliocene 1973; Grant et al., 1979). Pb IN CHILE,AN GALENAS In more detailed studiesof metallogeniczonesin...strata-boundbodies (see Wellmer et al., 1983, for the El Toqui mine). PreviousWork on Pb Geochemistryin the Central...for â˘Ă¸Tpb/2ø4Pb, andâ˘Ă¸SPb/â˘Ă¸4Pb ratios,reof the Chile ridge (46ø S). These Pb data have a â˘Ă¸6Pb/â˘Ă¸4Pb |  | | Report (issue) | | of some selected mines in the Hillsboro and San Lorenzo quadrangles, Grant and Sierra Counties, New Mexico................................................. Quartz monzonite................................................ Black Colt mine.......................................... Comstock mine............................. Lady Franklin mine....................................... Superior mine.........................mines..................................... Iron King mine........................................... Brush |  | | Journal (article/letter/editorial) | | chemical compositions of the Utuado, Morovis, San Lorenzo, Rio Blanco, Rio Vivi, Torrecilla, and Cuyon...of K 2 0 content was about - 0 . 0 6 % K 2 0 / m . y . This compositional evolution is similar to that...States. By analogy to interpretations made for that area, the observed compositional changes could have been...supplement existing data on some intrusive rocks in the area (Weaver, 1958; Longshore, 1966; Chen, 1967; Nelson...Nelson, 1968) with new data on the San Lorenzo batholith and the Morovis, Rio Blanco, Rio Vivi, Torrecilla |  | | Report (issue) | | Ranges CG lE ~ ÂťJL ÂŤ) ~G ll (~ A I.. S l T R V lE Y P R 0 JF 1E S § H 0 N A lL lF A lP IE. m. n n...Northeast of San Gregorio fault ............................................. . Southwest of San Gregorio...................... . Stratigraphy northeast of San Gregorio fault ........................... . Paleocene............................................ . San Lorenzo Formation .....................................13 14 15 16 17 Page Stratigraphy northeast of San Gregorio Fault-Continued Middle Miocene sedimentary |  | | 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 |  | | Report (issue) | | ____. Eastern streams _______________. The Upland province _______________. Cordillera Central _______________...divisions of Puerto Rico - Continued The Upland province-Continued Lowland areas ______________________...and valleys _______________ The Northern Karst province _________________ Cone karst _________________________...Zanjones _________________________ The Coastal Plains province __________________ Northern Coastal Plains __________________...____________________ 13. A part of the Canon de San Cristobal eroded into the Barranquitas erosion surface |  | 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 OSSANDĂN C., CODELCO-Chile, Gerencia Exploraciones...Santiago, Chile ROBERTO FRĂRAUT C., CODELCO-Chile, Superintendencia GeologĂa, 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 worldâs greatest copper orebody. It was...preserved. It is accompanied by granular quartz and quartz-K feldspar veinlets, which contain only trace |  | | Report (chapter) | | PetroproduccioĚn, CIG-Quito, av. 6 de Diciembre y G. CanĚero, PO Box, 17-01-1006, Quito, Ecuador â ...eastern Pacific area and the Caribbean Plate. Oceanic terranes San Juan terrane The San Juan terrane is...analysis of the San Juan magmatic rocks has been presented by Mamberti et al. (2004). Along the San Juan section...isotropic gabbros. The gabbros and peridotites of the San Juan suite exhibit nearly flat rare earth elements... mineralogy, and lithological assemblage of the San Juan section, these rocks have been interpreted as |  | | Report (volume) | | Geology of the Bernal-Jalpan Area Estado de Queretaro Mexico By KENNETH SEGERSTROM GEOLOGIC INVESTIGATIONS...Reconnaissance geologic map and section of the Bernal-Jalpan area.______________________________________________ In..._-___-----_-----26. Small fold on a limb of the San Lorenzo syncline___________ 27. Boudinage and chevron...BERNAL-JALPAN AREA, ESTADO DE QUERETARO, MEXICO By KENNETH SEGERSTROM ABSTRACT The area of this report...Plateau rocks along the west edge of the Bernal-Jalpan area consist of flat-lying flows, tuffs, and basin-fill |  | | Report (issue) | | files: TITLE1 for the Geologic mqp of the San Lorenzo quadrangle, Grant and Sierra ~ounties, New Mexico...Release. date: Area: (*) Asterisks indicate depositories holding reproducibles. Y~RCH 1975 NEt-7...INTERIOR GEOLOGICAL SURVEY Geologic Map of the San Lorenzo Quadrangle, Grant and Sierra Counties, New Mexico...and nomenclature. .,. GEOL0GIC HAP OF THE SAN LORENZO QUADRANGLE, GRANT AND SIERRA COUNTIES, NEW MEXICO...clinopyroxene. Xenocrysts(?) of highly resorbed quartz and accessory bronze-colored biotite are characteristic |
|
