 | Bugueño, Felipe, Calle-Gardella, Daniela, Comte, Diana, Reyes-Wagner, Valentina, Ojeda, Marcia, Rietbrock, Andreas, Roecker, Steven (2022) Subsurface Insights of the Maricunga Gold Belt through Local Earthquake Tomography. Minerals, 12 (11) 1437 doi:10.3390/min12111437 | Journal (article/letter/editorial) | | Universidad de Chile, Santiago 8370451, Chile Advanced Mining Technology Center, Universidad de Chile, Santiago...8370451, Chile Departamento de Geofísica, Facultad Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago...Santiago 8370449, Chile Geophysical Institute, Department of Physics, Karlsruhe Institute of Technology...which is a metallogenic belt located east of Copiapó, Chile, with a length of 200 km and oriented in the...institutional affiliations. Mining production in Chile is the top economic activity in terms of gross national |  | | Journal (article/letter/editorial) | | Porphyry Gold-Copper Deposit, Maricunga Belt, Northern Chile* RICHARD H. SILLITOE,1,† JUSTIN TOLMAN,2,** AND...the Maricunga gold-silver-copper belt of northern Chile, was discovered in 2007 beneath postmineral cover...and magnetite, which formed at the expense of biotite. A relatively minor, shallowly inclined zone of...28°S in the high volcanic Andes of the Atacama Region, northern Chile (Fig. 1). The belt, some 200 km long...-26°30’ ESPERANZA Argentina Chile Antofagasta LA COIPA Fig. 2 PUREN Copiapó Maricunga belt CASPICHE |  | 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...os M og ote sf au lt Refugio CHILE belt A R G E N T I N A Lobo-Marte La Pepa Taguas Pascua-Lama...late Oligocene-Miocene volcanic belt of northern Chile and contiguous Argentina, showing the age assignment |  | | Journal (article/letter/editorial) | | the Refugio District, Maricunga Belt, Northern Chile JOHN L. MUNTEAN†,* AND MARCO T. EINAUDI Department...A-veinlets range from hairline streaks of magnetite ± biotite with minor quartz and chalcopyrite, and K feldspar...feldspar-oligoclase that changes outward to a biotite-rich zone. Total sulfide content, predominately...the porphyry gold deposits of the Maricunga belt, Chile (Vila and Sillitoe, 1991). For this reason it is...prospects and deposits in the high Andes of northern Chile (Vila and Sillitoe, 1991; Fig. 1). Zones of hydrothermally |  | | Journal (article/letter/editorial) | | mineralization in the Atacama segment of the South American Andes, northern Chile (26°15'-27°25'S) Received:...magmatism and the rich ore deposits of northern Chile have been the focus of numerous studies. Significant...feature of the geology of this part of northern Chile is the existence of n o r t h - south to north-east-...alteration and cama segment - Andes - northern Chile mineralization (Baker and Guilbert, 1987; Colley...metallogenic belts Introduction (Fig. 1): (1) along the Atacama Fault System; (2) along the Inca de Oro Belt; (3) |  | | Journal (article/letter/editorial) | | Porphyry-Epithermal Transition: Maricunga Belt, Northern Chile JOHN L. MUNTEAN†,* AND MARCO T. EINAUDI Department...Pepa districts in the Maricunga belt of northern Chile contain advanced argillic alteration zones that...contain variable amounts of quartz, magnetite, biotite, and chalcopyrite and locally have K feldspar halos...by equivalent 40Ar/39Ar dates on hydrothermal biotite associated with porphyry-style ore and alunite...to as long as 900,000 years after hydrothermal biotite. Within the high-sulfidation epithermal environment |  | | Journal (article/letter/editorial) | | ileLtda., AvenidaPedrode Valdivia295, Santiago,Chile AND RICHARD H. SILLITOE 27 WestHill Park,HighgateVillage...and 28 ø S in the Andean Cordillera of northern Chile. After 10 yearsof exploration,three preciousmetal...quartzstockworksandadvanced argilliccapsare telescopedat Marte, Valy, SantaCecilia, andLa Pepabut are separatedby...polymetallicveinswith quartz-alunite selvagesat Aldebaran. Marte andLobo are rich in gold(1.43 and 1.6 ppm) andpoorin...,andalongwith lead, are alsoweaklyanomalous at Marte in the underlying,shallow-levelquartz stockwork |  | | Journal (article/letter/editorial) | | Geochronologyof the Maricunga Gold-Silver Belt, Northern Chile RICHARD H. SILLITOE, 27 WestHill Park, HighgateVillage...ileLtda., AvenidaPedrode Valdivia295, Santiago,Chile Abstract The Maricungametallogenicbelt in northernChile...tersin the belt, includingthe La Coipa,La Pepa,Marte, andLobodeposits, weredatedradiometrically using...Reand 28 ø S in the Andean Cordillera of northern Chile at Aldebaran,gold-silverat (Fig. 1) at altitudesrangingfromabout4...during the initial stagesof, the subductionzone Marte porphyrygold deposit(Vila et al., 1991), the fl |  | | Journal (article/letter/editorial) | | Vol. 86, 1991, pp. 1187-1205 Gold Metallogeny of Chile RICHARD an Introduction H. SILLITOE 27 WestHill...s,includingnewly recognizedgold-onlyexamplesat Marte and Lobo, accompany quartzstockworks developedin...poorlymineralized. Paucityof golddepositsin the coastalzoneof Chile, concentration of highsulfidationand porphyry-typedepositsin...copper and silver enrichmentin northernand central Chile which took place during the Oligoceneand early Mioceneand...CHILEhasbeena modestgoldproducerfor the last central Chile (24o-37 ø S; Flores, 1942; Ruiz et al., fivecenturies |  | | Journal (article/letter/editorial) | | Magmatic Evolution of the Maricunga Mineral Belt in Chile a b c Suzanne Mahlburg Kay , Constantino Mpodozis...y Mineria, Avenida Santa Maria 0104, Santiago, Chile c Department of Geological Sciences, Snee Hall...y Mineria, Avenida Santa Maria 0104, Santiago, Chile Version of record first published: 06 Jul 2010....Magmatic Evolution of the Maricunga Mineral Belt in Chile, International Geology Review, 36:12, 1079-1112...Magmatic Evolution of the Maricunga Mineral Belt in Chile SUZANNE MAHLBURG KAY, Department of Geological Sciences |  | Oviedo, Luis, Fuster, Nicolas, Tschischow, Natasha, Ribba, Luis, Zuccone, Alvio, Grez, Enrique, Aguilar, Angelo (1991) General geology of La Coipa precious metal deposit, Atacama, Chile. Economic Geology, 86 (6) 1287-1300 doi:10.2113/gsecongeo.86.6.1287 | Journal (article/letter/editorial) | | Deposit, Atacama,Chile Luis OVIEDO, Los Quillayes191, Las Vertientes,SanJosdde Maipo, Chile NICOLAS...6651, Copiapd,Chile ENRIQUE GREZ, Goldfields,Chile, S.A.,CarmenSylva2449, Santiago,Chile AND ANGELO AGUILAR...AGUILAR Minera Homestake,Chile S.A.,Pedrode Valdivia 0193, 4 ø Piso,Santiago,Chile Abstract The La Coipaore...suchasLa Coipa (1980-1982), Esperanza (1981), Lobo-Marte (1982-1984), E1 The earliestwritteninformationaboutLa...and 6 oz/metricton (93.3 and 186.6 g/ a 12-year mine life. metric ton) and a gold gradeover 0.1 oz/metric |  | | Journal (article/letter/editorial) | | east of the main Andean porphyry copper belt of Chile. The deposit consists of a composite stock of dacitic...potassic alteration (secondary K feldspar and biotite), which affects all porphyries except the latest...intrusions are dominated by dark hydrothermal biotite. An outer halo of propylitic alteration (epido...and have a closely overlapping distribution on the mine scale. A well-developed ore shell coincides with...include the porphyry copper deposits of El Salvador, Chile (Gustafson and Hunt, 1975), Ann Mason, Nevada (Dilles |  | | Journal (article/letter/editorial) | | east of the main Andean porphyry copper belt of Chile. The deposit consists of a composite stock of dacitic...potassic alteration (secondary K feldspar and biotite), which affects all porphyries except the latest...intrusions are dominated by dark hydrothermal biotite. An outer halo of propylitic alteration (epido...and have a closely overlapping distribution on the mine scale. A well-developed ore shell coincides with...include the porphyry copper deposits of El Salvador, Chile (Gustafson and Hunt, 1975), Ann Mason, Nevada (Dilles |  | | Journal (article/letter/editorial) | | Geologic Evolution of the Escondida Area, Northern Chile: A Model for Spatial and Temporal Localization of...has been carried out over a 745-km2 area of the Atacama Desert surrounding the porphyry Cu deposits at...and Chimborazo (Cordillera de Domeyko, northern Chile). The purpose of this study was to examine the regional...throughout much of the porphyry belt of northern Chile. Geochemically, they are I-type in character, but...giant porphyry deposits. Introduction NORTHERN CHILE is the world’s premier porphyry copper district |  | | Journal (article/letter/editorial) | | Porphyry Gold Deposit at Marte, Northern Chile TOMkS VILA, Minera Anglo American Chile Ltda., Avenida Pedro...Pedro de Valdivia 295, Santiago,Chile RICHARD H. SILLITOE, 27 West Hill Park, Highgate Village, London N6...CopiapS,Chile AND ENRIQUEVITERI** Minera AngloAmericanChile Ltda., ChaKarcillo840, CopiapC,Chile Abstract...porphyrygolddeposithasbeendocumentedfor the firsttime at Marte in the Maricunga belt of the AndeanCordillera,northernChile...andesitic stratovolcano at 13 to 14 Ma. The hornblende-biotite diorite stock is subdivided into three phases:two |  | | Journal (article/letter/editorial) | | Deposits,Chile JOHN DAVIDSON Minera ComincoResourcesChile, Ltda., Los Leones234, Santiago,Chile AND CONSTANTINO...Minerfa, Casilla 10465, Santiago,Chile Abstract Epithermal gold depositsin Chile are Cretaceousto Cenozoicin...hydrothermalalterationzones were formed in central Chile. Paleocene-Eocene volcanicrocksconstitutea large...DepositssuchasEl IndioTambo,Nevada,La Pepa,Lobo, Marte, andLa Coipa are hostedby Oligocene-Miocenevolcanics...and 33 ø S. Late Mioceneto Holocenemagmatismin Chile is presentin two segmentsbeneathwhich the dip of |  | | 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 GeoloÂgico de Chile (1982) and Mapa GeoloÂgico de la RepuÂblica Argentina...sections) perpendicular to the axis of the Peru±Chile trench, which enabled us to distinguish between |  | | Report (issue) | | the core or flank of a stratovolcano. Potassic (biotite) and (or) sericitic alteration in the ore zone...Enrique Viteri, The porphyry gold deposit at Marte, northern Chile, Economic Geology Monograph 8, in press...by geologists at La Pepa, Alderberan, Marte and Lobo Mines, Chile. REGIONAL GEOLOGIC ATTRIBUTES TECTONIC...WALLROCK ALTERATION: Fine-grained hydrothermal biotite and biotite as stable phenocrysts are common in diorite...the ore zone with potassic alteration at depth (biotite). Veins of anhydrite and its near surface alteration |  | | 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...subject of research by numerous individuals in Chile and elsewhere. The support of mining companies has |  | | Journal (article/letter/editorial) | | disseminations and veinlets, is hosted by garnet–biotite schist. Subeconomic mineralization in the footwall...footwall to the ore is hosted by feldspar–biotite–amphibole gneiss and porphyritic quartz monzodiorite. The...Norrbotten ore province Æ Sweden Introduction Aitik is Sweden’s largest copper mine and one of Europe’s...had been produced since mining began in 1968. The mine has a remaining reserve of 226 Mt of ore with an...of Gällivare, in the northern Norrbotten ore province (Fig. 1). Several other epigenetic copper–gold |  | | 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...syn-orpostmineralization feldspar-biotite-quartz porphyry intrusion.At theZaldfvar porphyry Cu mine,zirconandbiotitehavebeenanalyzed...alyzed froma similarsynmineralizationfeldspar-biotite-quartz porphyry (theLlamoporphyry): thezirconU-Pbageis38...Zald/vardepositand least,from E1 Salvadorand Potrerillosin Chile (-27 ø S) to from Escondida single-crystal incremental-heating |  | 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) | | K-silicate (K-feldspar + quartz + magnetite ± biotite ± anhydrite) and (iii) 38 chlorite-calcite alteration...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...worldwide (Sillitoe, 2000), such as Maricunga (e.g., Marte and Lobo; Vila and Sillitoe, 83 1991), the Javorie |  | | Journal (article/letter/editorial) | | central Chile; A.J. Wilson, writ. commun., 2009) and Mo (2.5 Mt: El Teniente, central Chile; Camus, 2003)...(Nena) Wafi-Golpu Gaby El Salvador Potrerillos Marte & Caspiche Taca Taca Bajo Bajo de la Alumbrera...to global-scale anomalies for Cu (e.g., northern Chile-southern Peru, southwestern North America) or Au...HI B AR C A 26° El Salvador Potrerillos COPIAPÓ ARGENTINA LA SERENA 30° Lineament Fault Porphyry...belt and an intra-arc fault zone: the northern Chile part of the central Andean middle Eocene to early |  | Gurbanov, A. G., Bogatikov, O. A., Dokuchaev, A. Ya., Gazeev, V. M., Abramov, S. S., Groznova, E. O., Shevchenko, A. V. (2008) Ore-bearing hydrothermal metasomatic processes in the Elbrus volcanic center, the northern Caucasus, Russia. Geology of Ore Deposits, 50 (3) 199-217 doi:10.1134/s1075701508030033 | Journal (article/letter/editorial) | | time. By analogy with porphyry Cu–Mo deposits in Chile and the United States, the ore mineralization of...that are mined in the Maricunga Belt in northern Chile are localized in early and late Miocene volcanic...argillic cap commonly covers the subvolcanic bodies (Marte, La Pepa, Valle, and other gold deposits); at some...successfully mined in Chile at a rather great height (3000–4500 m). The Marte deposit, with Au reserves...volcanic belts of California, Nevada, Italy, Japan, Chile, the Kurile Islands (Kudryavy volcano), and Kamchatka |  | Koděra, Peter, Kozák, Jaroslav, Brčeková, Jana, Chovan, Martin, Lexa, Jaroslav, Jánošík, Michal, Biroň, Adrián, Uhlík, Peter, Bakos, František (2018) Distribution and composition of gold in porphyry gold systems: example from the Biely Vrch deposit, Slovakia. Mineralium Deposita, 53 (8) 1193-1212 doi:10.1007/s00126-018-0798-0 | Journal (article/letter/editorial) | | including the classical Maricunga belt in N Chile (e.g., Lobo, Marte, Maricunga (previously Refugio); Vila...as free grains of high fineness (910 to 990). At Marte, gold grains were found in the argillized groundmass...veinlets and in silicate alteration minerals, such as biotite and plagioclase. Gold grains are almost pure gold...K-silicate (biotite, K-feldspar, magnetite) K+Ca Chl K-silicate + Ca-Na-silicate (biotite, K-feldspar...graben (Figs. 1b and 2a); it is centered on a biotite-hornblende diorite to andesite porphyry stock 300 |
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