 | Bissig, Thomas, Lee, James K. W., Clark, Alan H., Heather, Kevin B. (2001) The Cenozoic History of Volcanism and Hydrothermal Alteration in the Central Andean Flat-Slab Region: New 40Ar-39Ar Constraints from the El Indio–Pascua Au (-Ag, Cu) Belt, 29°20′–30°30′ S. International Geology Review, 43 (4) 312-340 doi:10.1080/00206810109465016 | Journal (article/letter/editorial) | | Canada b Barrick Chile Ltda. , Barrio Industrial Late 58, Alto Penuelas, Coquimbo, Chile Published online:...HEATHER Barrick Chile Ltda., Barrio Industrial Late 58, Alto Peñuelas, Coquimbo, Chile Abstract Ninety-three... Veladero, Sancarrón, Río del Medio, El Indio, Tambo, and Vacas Heladas. The widespread, albeit barren...from carefully documented outcrops or underground mine exposures on the Chilean and Argentinian flanks...29° and 30°30' S, north and south of the El Indio mine. Additional ore bodies, all of epithermal type, |  | | Journal (article/letter/editorial) | | constraints from the El Indio-Pascua Au–Ag–Cu belt, Chile/Argentina Received: 21 October 2002 / Accepted:...suites, ranging in composition from andesite to rhyolite. A significant transition in magmatic trace element...migration of the locus of ‘‘collision’’ along the Chile Trench, from 20S at about 22 Ma to slightly north...continuity of the stratigraphic units defined in Chile. The subaerial Tertiary volcanic and cogenetic hypabyssal...Pascua Valle del Cura ignimbrite, tuffs in the wider Tambo area volumetrically subordinate overall Tuff at |  | | Journal (article/letter/editorial) | | Processes in the El Indio-Pascua Au-Ag-Cu Belt, Chile and Argentina THOMAS BISSIG,* ALAN H. CLARK,† JAMES...deposits of the Pascua-Lama, Veladero, El Indio, and Tambo districts are hosted by largely felsic volcanic...erosion surfaces of the Atacama desert of northern Chile and southern Peru, are considered to have formed...on supergene processes in the Andes of northern Chile and southern Peru has long been recognized (e.g...Indio-Pascua gold-silver-copper belt which straddles the Chile-Argentina frontier along the tectonic and physiographic |  | | Journal (article/letter/editorial) | | Located in the northern part of the El Indio belt of Chile-Argentina, the 12.6-million ounce (Moz) gold, late...controlled formation of the economic El Indio, Tambo, and Pascua-Lama high-sulfidation gold deposits...deposits at the northern end of the El Indio belt, Chile and Argentina (Fig. 1; Jannas et al., 1990, 1999;...morphostructural province of the Central Andes, which straddles the Argentina-Chile † Corresponding ...metallogenic belt (Araneda, 1982), which lies mostly in Chile (Fig. 2); this belt is also referred to as the El |  | | Report (issue) | | 517(9) Z=6 X-ray Powder Pattern: El Indio mine, Chile. 2.97 (100), 4.91 (75), 2.231 (51), 1.899 (43)...0.11 13.60 0.05 Total 98.83 (1) El Indio mine, Chile; by electron microprobe, average of seven analyses;...alteration of rhyolite tuffs and andesites. Association: Kaolinite, pyrite, woodhouseite (El Indio mine, Chile);...From the El Indio mine, El Indio-Tambo district, east of La Serena, Coquimbo, Chile. At Okumanza, near...minerals of the alunite group from the Coquimbo region, Chile. Amer. Mineral., 77, 1275–1284. (2) Matsubara |  | | Journal (article/letter/editorial) | | Sancarrón, El Indio, and Tambo high-sulfidation epithermal gold deposits in Chile as well as the recently...metallogenic belt, which straddles the Argentina-Chile border along the crest of the Cordillera Frontal...the belt are Veladero, Pascua-Lama, El Indio, and Tambo, with a combined gold endowment of nearly 30 Moz...W o o Antofagasta ARGENTINA 24oS o 300 CHILE 24 S SOUTH AMERICA Escondida El Salvador Tucumán...El Indio-Pascua metallogenic belt, spanning the Chile-Argentina border in the Andean Cordillera (modified |  | Deyell, C.L., Rye, R.O., Landis, G.P., Bissig, T. (2005) Alunite and the role of magmatic fluids in the Tambo high-sulfidation deposit, El Indio–Pascua belt, Chile. Chemical Geology, 215 (1) 185-218 doi:10.1016/j.chemgeo.2004.06.038 | Journal (article/letter/editorial) | | magmatic fluids in the Tambo high-sulfidation deposit, El Indio–Pascua belt, Chile C.L. Deyella,*, R.O....Abstract The Tambo high-sulfidation deposit, located within the El Indio–Pascua belt in Chile, produced...and was contemporaneous with the volcanism of the Tambo Formation. Alunite from this stage of alteration...aluniteFhematite-quartz veins that crosscut the breccias in the Tambo area. Analyses of fluid-inclusion gas from alunite...belt; Tambo deposit; Acid-sulfate; Stable isotopes; Epithermal; Gold 1. Introduction The Tambo high-sulfidation |  | | Report (issue) | | Servicio Nacional de Geologia y Mineria, Santiago, Chile Open-File Report 87- 634 1987 This report is preliminary...deposits associated with stratovolcanos in Bolivia and Chile ........................ 5. 12A 15A Distribution...northwestern Argentina, western Boliva, northern Chile, and southern Peru, are potential targets for hydrothermal...central Andean region of southern Peru, northern Chile, western Bolivia, and northwestern Argentina. The...The volcanic rocks under consideration include rhyolite ash-flow tuffs or ignimbrites that have originated |  | Deyell, C. L., Leonardson, R., Rye, R. O., Thompson, J. F. H., Bissig, T., Cooke, D. R. (2005) Alunite in the Pascua-Lama High-Sulfidation Deposit: Constraints on Alteration and Ore Deposition Using Stable Isotope Geochemistry. Economic Geology, 100 (1) 131-148 doi:10.2113/100.1.0131 | Journal (article/letter/editorial) | | Ciencias Geológicas, Av. Angamos 0610, Antofagasta, Chile AND D. R. COOKE Centre for Ore Deposit Research...system, located in the El Indio-Pascua belt of Chile and Argentina, contains over 16 million ounces (Moz)...deposit is situated in the Cordillera Principal of Chile and Argentina at the north end † Corresponding ...of high-sulfidation 131 132 DEYELL ET AL. Chile Princ ipal Cord Arge illera El Indio-Pascua Belt... and breccia- and veinhosted mineralization at Tambo (Jannas et al., 1999; Deyell et al., in press). |  | | Journal (article/letter/editorial) | | from well-studied deposits (Marysvale, Utah; Tambo, Chile; Tapajós, Brazil; Cactus, California; Pierina...1992), Cactus, California (Rye et al., 1992), Tambo, Chile (Deyell et al., this Volume), and Pierina, Peru...Tapajós, Brazil (Juliani et al., this Volume), Tambo (Deyell et al., this Volume), and Pierina (Fifarek...studied in the alunite at other areas, such as Tambo and Pierina. The designation of magmatic-steam and...in the Middle Buttes Miocene quartz latite to rhyolite volcanic complex of the western Mojave Desert |  | | Journal (article/letter/editorial) | | western extension of the Emeishan large igneous province, SW China—Xiao Long, Xu Yigang, Xu Jifeng, He...Fleet Empressite, AgTe, from the Empress-Josephine mine, Colorado, U.S.A.: Composition, physical properties...Tertiary Yandi channel iron deposits, Hamersley Province, Western Australia— M.S. Stone, A.D. George, M...(Welgevonden) iron ore deposits, Northern Cape Province, South Africa—M.D. Carney and P.J. Mienie Upgrading...bedrock sources for the Estero Hondo alluvial gold mine, western Ecuador—M. Potter and M.T. Styles 0361-0128/98/000/000-00 |  | Holley, Elizabeth A., Monecke, Thomas, Bissig, Thomas, Reynolds, T. James (2017) Evolution of High-Level Magmatic-Hydrothermal Systems: New Insights from Ore Paragenesis of the Veladero High-Sulfidation Epithermal Au-Ag Deposit, El Indio-Pascua Belt, Argentina. Economic Geology, 112 (7) 1747-1771 doi:10.5382/econgeo.2017.4528 | Journal (article/letter/editorial) | | metallogenic belt, which straddles the Argentina-Chile border along the crest of the Cordillera Frontal...sedimentary units of the Pastos Blancos Group in Chile (Martin et al., 1999; Bissig et al., 2001) and the...i 6,746,000 ARGENTINA 6,720,000 Sancarrón CHILE Libra B Argenta Río del Medio 6,700,000 El...Ana 0 Quaternary deposits Tambo 6,680,000 Cerro de las Tórtolas CHILE Alturas 3 km N A ARGENTINA...et al., 2015), just west of the Cerro de Vidrio rhyolite dome (Bissig et al., 2002a). Hydrothermal activity |  | | Journal (article/letter/editorial) | | 2009) indicate that the predominant rock type is rhyolite (to dacite) (Fig. 2a) originating from calc-alkaline...377–384 379 5 Com/Pant 1 Phonolite Tholeiitic Rhyolite 0.1 Trachyte Rhyodacite/Dacite Trachy And Andesite...association coating a fracture surface of an altered rhyolite and (b) pseudomorphs of iron oxide after disseminated...fracture surface in altered rhyolite. Fig. 5. Photomicrographs of altered rhyolite samples. (a) Occurrence...groundmass together with a quartz phenocryst in altered rhyolite in sample Rn-9 (CPL). conchoidal fracture pattern |  | Sillitoe, Richard H., Devine, Fionnuala A.M., Sanguinetti, Martin I., Friedman, Richard M. (2019) Geology of the Josemaría Porphyry Copper-Gold Deposit, Argentina: Formation, Exhumation, and Burial in Two Million Years. Economic Geology, 114 (3) 407-426 doi:10.5382/econgeo.4645 | Journal (article/letter/editorial) | | located in the Frontal Cordillera of San Juan Province, Argentina, near the present-day northern limit...Cordillera of San Juan Province, Argentina, ~8 km east of the border with Chile (lat 28°26'S, long 69°32'W)...70° 68°W 69°40’ o PERU S BOLIVIA er u - Chile Tambo Alturas ch Los Azules El Altar - Piuquenes...fau Los H e l a d os M og ote sf au lt Refugio CHILE belt A R G E N T I N A Lobo-Marte La Pepa Taguas...late Oligocene-Miocene volcanic belt of northern Chile and contiguous Argentina, showing the age assignment |  | | Journal (article/letter/editorial) | | dates for Upper Cenozoic volcanic rocks from north Chile and southwest Bolivia are presented, together with...lava and ignimbrite for a segment of the volcanic province (19°30'S to 22~30'S) to identify fluctuations...This region is a major Upper Cenozoic volcanic province. Large c o m p o s i t e volcanoes, c o m p o...to 1976. The area studied was located in north Chile and southwest Bolivia, approximately between 19°30'S...The Upper Cenozoic volcanic chronology of north Chile between about 20°S and 22°30'S has been described |  | Juliani, Caetano, Rye, Robert O., Nunes, Carmen M.D., Snee, Lawrence W., Corrêa Silva, Rafael H., Monteiro, Lena V.S., Bettencourt, Jorge S., Neumann, Rainer, Neto, Arnaldo Alcover (2005) Paleoproterozoic high-sulfidation mineralization in the Tapajós gold province, Amazonian Craton, Brazil: geology, mineralogy, alunite argon age, and stable-isotope constraints. Chemical Geology, 215 (1) 95-125 doi:10.1016/j.chemgeo.2004.06.035 | Journal (article/letter/editorial) | | high-sulfidation mineralization in the Tapajós gold province, Amazonian Craton, Brazil: geology, mineralogy...June 2004 Abstract The Brazilian Tapajós gold province contains the first evidence of high-sulfidation...Tapajós–Parima (or Ventuari–Tapajós) geological province consists of a metamorphic, igneous, and sedimentary...shallow crustal levels, the discoveries in Tapajós province provide new perspectives for mineral exploration...existence of Fig. 1. Location of the Tapajós gold province and the main geochronological-tectonic provinces |  | | Journal (article/letter/editorial) | | 166--170, Stuttgart 1882. - - : Reisenotizen aus Chile. - - N. Jhb. Min. Geol. u. Paliiont., 1884, I: 198--208...Univ. de Chile~ Fac, Cien. Fis. y Mat., Inst. de Geologia, Publ. 9: 205--216, Santiago de Chile 1956. THOMAS...- - Inst. Invest. Geol., 2, 86 S., Santiago de Chile 1958. WEAVER, CH.E.: Paleontology of the Jurassic...Chafiarcillo, Chile. - - E c o n o m i c Geology, 14: 1--45, 1919. ZEIL, W.: Geologie yon Chile. - - Beitrage...carbonat6 unique (caleaires Mura]la ou calcaires Tambo). Bord SW et extr6mit6 Sud du batholite de |  | | Report (volume) | | volcanism, which included the Cerro Toledo Rhyolite and the Valles Rhyolite. Pb isotope determinations of 78 whole...Toledo Rhyolite has intermediate values (206Pb/204Pb = 17.823-18.003). In the Valles Rhyolite, older...Member and Tshirege Member); Cerro Toledo Rhyolite; Valles Rhyolite; older and contemporaneous mafic, intermediate...| | Alluvium Bearhead Rhyolite and Canovas Canyon Rhyolite Valles Rhyolite and Cerro I _ I Tschicoma...Palbra Formation Fnrmatinn (south) fcnuthl Toledo Rhyolite Bandelier Tuff Labato Basalt (north) Basalt of |  | Rapalini, Augusto E., Tohver, Eric, Bettucci, Leda Sánchez, Lossada, Ana C., Barcelona, Hernán, Pérez, Cecilia (2015) The late Neoproterozoic Sierra de las Ánimas Magmatic Complex and Playa Hermosa Formation, southern Uruguay, revisited: Paleogeographic implications of new paleomagnetic and precise geochronologic data. Precambrian Research, 259. 143-155 doi:10.1016/j.precamres.2014.11.021 | Journal (article/letter/editorial) | | (interpreted as of M ca 550 Ma) and the El Tambo Rhyolite (SA-12) contributing to pole SA1 (interpreted...(Fig. 4B). Sample SdAn2 is a flow-banded rhyolite of the El Tambo Formation, taken from site SA-12 of Sánchez...Pb loss. This result indicates that the El Tambo rhyolite is the extrusive equivalent of the syenitic...Furthermore, new geochronological data from the El Tambo Rhyolite indicate a ca. 578 Ma age for these rocks in...1994. Paleomagnetism of the Catoctin volcanic province: a new Vendian–Cambrian apparent polar wander |  | | Journal (article/letter/editorial) | | high-sulfidation Au–Ag deposit formed 14.5 my ago in rhyolite ash flow tuffs that overlie porphyritic andesite...were investigated through the mapping of selected mine areas, logging of 10.45 km of core from 60 exploration...Au–Ag deposit hosted almost entirely by ~16 Ma rhyolite ash 255 flow tuffs that overlie a footwall sequence...(Strusievicz et al., 1998a). At Pierina, the host rhyolite tuffs are up to 390 m thick in the area of the...occur sporadically at the contact between the rhyolite tuffs and footwall sequence in the central and |  | | Journal (article/letter/editorial) | | Bimodal volcanism also occurred in the Mount Howitt Province farther east, but was followed by deposition of...younger intrusive phases. Victoria is a major gold province which has produced nearly 2.5 ~ 10" kg gold. Primary...the Tertiary volcanic Haurkaki Province. He worked for a period as mine geologist in Tasmania and in 1974...the Grampians Zone the Silurian (?) Rocklands Rhyolite and Grampians Group lie unconformably on the Glenelg...two-pyroxene and pyroxene--hornblende andesite, dacite, rhyolite, volcaniclastic equivalents of the intermediate |  | | 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 |  | | Journal (issue) | | reached more than 3,300 mm as measured at Phang Nga province meteorological station (Szczucinski et al. 2006)...tin belt, Na khon Si Thammarat Geol 2:195-202 province, Southern Zarcinas BA, Pongsakul P, McLaughlin... in stream sediments from the semiarid Coquimbo Region, Chile R. Oyarzun - J. Oyarzin - J. Lillo - H...out in the three main watersheds of the Coquimbo Region of Chile. This mountainous semiarid realm occupies...An investigation of the other two anomalies (Elqui and Hurtado) reveals R. Oyarzun(D4) Departamento |  | | Book | | by a massive conglomerate formation containing rhyolite pebbles in addition to sandstone, slate, and granite...basal phase of conglomerates, with pebbles of rhyolite and granite as well as sediment, is followed by...Devonian quartz reefs, for example in the Wattle Gully Mine, Chewton, mark the final pulses of tectonic activity...Kalorama Rhyodacite Mt. Evelyn Rhyodacite Coldstream Rhyolite -_ - "Upper Dacite" "Middle Dacite" "Lower... Vict., 51: 73-98. Edwards, A. B:-:-I956. The rhyolite-dacite-granodiorite association of the Dandenong |  | Sillitoe, Richard H., Jaramillo, Luis, Damon, Paul E., Shafiqullah, Muhammad, Escovar, Ricardo (1982) Setting, characteristics, and age of the Andean porphyry copper belt in Colombia. Economic Geology, 77 (8) 1837-1850 doi:10.2113/gsecongeo.77.8.1837 | Journal (article/letter/editorial) | | the K-Ar sion and its flanks. It includes the E1 Tambo, Dommethod(Orregoet al., 1980b). inical, Piedrasentada...which quartz, plagioclase, rulanda, 1976) and E1 Tambo, but commonlycut and biotite, with or without hornblende...Pied(Fig. 2). Host rocks rasentada,Dominical, El Tambo, El Pisno,and Marmato,but alsopredominates at Acand•...batholithichostrocks.Else- Chili, Acand•, and El Tambo, and at the last two the form of at least a where...Cretaceous age of 127 ñ $ m.y. for a minor intrusiveof rhyolite porphyry (Goldsmithet porphyry system:biotite |
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