 | | Journal (article/letter/editorial) | | Porphyry Gold-Copper Deposit, Maricunga Belt,NorthernChile*RICHARD H. SILLITOE,1,† JUSTIN TOLMAN,2,** AND...the Maricunga gold-silver-copper belt of northernChile, was discovered in 2007 beneath postmineral cover...28°S in the high volcanic Andes of theAtacama Region, northernChile (Fig. 1). The belt, some 200 kmlong...-26°30’ESPERANZAArgentinaChileAntofagastaLA COIPAFig. 2PURENCopiapóMaricunga beltCASPICHE...-LAMAVELADEROEL INDIO-30°-30°El Indio beltLOBOLA PEPAVOLCANPANTANILLOSSantiago-70°-27°30’ |  | 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) 407-426doi:10.5382/econgeo.4645 | Journal (article/letter/editorial) | | located in the Frontal Cordillera of San JuanProvince, Argentina, near the present-day northern limit...alteration, accompanied by minor high-sulfidationenargite mineralization, locally affected the southern...Cordillera of San JuanProvince, Argentina, ~8 km east of the border withChile (lat28°26'S, long 69°32'W)...SILLITOE ET AL.70°68°W69°40’oBOLIVIAu -ChileTamboTren25°chLos AzulesEl Altar - Piuquenes...a d osM ogotesfaultI NRefugioCHILEbeltALobo-MarteLa PepaTaguasPascua-Lamadio |  | | Journal (article/letter/editorial) | | ileLtda., AvenidaPedrode Valdivia295, Santiago,ChileAND RICHARDH. SILLITOE27 WestHill Park,HighgateVillage...and 28 ø S in the Andean Cordillera of northernChile. After 10 yearsof exploration,three preciousmetal...calteration,whichcarriesbarite, nativesulfur,enargite,andat La Pepa,high-grade,vein-typegoldmineralizationof...38-2353.001238 Au PORPHYRY,MARICUNGA BELT,CHILE1239and west of Marte which compriseadvancedargillic...gold-silver-copperprogressivelysouthwardand ends about latitude(enargite-gold)depositfrom 1976 to 1978, intensive 27ø30' |  | | Journal (article/letter/editorial) | | mineralization in theAtacama segmentof the South American Andes, northernChile (26°15'-27°25'S)Received:...magmatism and the rich oredeposits of northernChile have been the focus ofnumerous studies. Significant...feature of the geology of this part of northernChile is the existence of n o r t h - south to north-east-...alteration andcama segment - Andes - northernChilemineralization (Baker and Guilbert, 1987; Colley...metallogenic beltsIntroduction(Fig. 1): (1) along theAtacama Fault System; (2) along theInca de Oro Belt; (3) |  | | Journal (article/letter/editorial) | | Porphyry-Epithermal Transition: Maricunga Belt, NorthernChileJOHN L. MUNTEAN†,* AND MARCO T. EINAUDIDepartment...Pepa districts in the Maricunga belt of northernChile contain advancedargillic alteration zones that...zones ofvuggy residual quartz that can containenargite or, at higher elevations, barite. Of the three...we investigated the Maricunga belt ofnorthernChile, where numerous districts have zones of advanced...in northernChile about 700km north of Santiago (Figs. 1, 2), is a metallogenicprovinceof Miocene age |  | | Journal (article/letter/editorial) | | Vol. 86, 1991, pp. 1187-1205Gold Metallogeny ofChileRICHARDan IntroductionH. SILLITOE27 WestHill...includingnewly recognizedgold-onlyexamplesat Marte andLobo, accompanyquartzstockworksdevelopedin dioriticto...poorlymineralized.Paucityof golddepositsin the coastalzoneofChile, concentrationof highsulfidationandporphyry-typedepositsin...copper and silver enrichmentin northernand centralChile which took place during theOligoceneand early Mioceneand...CHILEhasbeena modestgoldproducerfor the last centralChile (24o-37 ø S; Flores, 1942; Ruiz et al.,fivecenturies |  | 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) 1287-1300doi:10.2113/gsecongeo.86.6.1287 | Journal (article/letter/editorial) | | Deposit,Atacama,ChileLuis OVIEDO,Los Quillayes191, Las Vertientes,SanJosdde Maipo,ChileNICOLAS...6651, Copiapd,ChileENRIQUE GREZ,Goldfields,Chile, S.A.,CarmenSylva2449, Santiago,ChileAND ANGELOAGUILAR...AGUILARMinera Homestake,Chile S.A.,Pedrode Valdivia 0193, 4 ø Piso,Santiago,ChileAbstractThe La Coipaore...chalcopyrite,covellite,tennantitetetrahedrite,enargite,galena,andsphaleritealsohavebeenobservedin the...1980-1985, suchasLa Coipa (1980-1982),Esperanza (1981),Lobo-Marte (1982-1984), E1The earliestwritteninformationaboutLa |  | | Journal (article/letter/editorial) | | Geochronologyof the MaricungaGold-Silver Belt, NorthernChileRICHARD H. SILLITOE,27 WestHill Park, HighgateVillage...ileLtda., AvenidaPedrode Valdivia295, Santiago,ChileAbstractThe Maricungametallogenicbelt in northernChile...Reand 28 ø S in the Andean Cordillera of northernChileat Aldebaran,gold-silverat(Fig. 1) at altitudesrangingfromabout4...LA COIPA/24-20)- 27"MARTE(14-13).•\.•../LOBO(13)'iLA PEPAILßPANTANILLOS(22)•.-.j...teethon upthrownsideALTERATIONAGE,(Ma)(22)MINE OR PROSPECTVOLCANIC CENTERFIG.1. Locationof |  | | Journal (article/letter/editorial) | | The specimens from the Hokuetsumine, Japan and the Mankayanmine, Philippines have most nearly stoichiometric...mol % Cu3SbS4. They from theLobomine, Philippines and the Kinkasekimine, Formosa have from 2 to 12 mol...Skinner (1960). Lz: luzonite, Fm: famatinite, En:enargite. (昭 和53年2月8日 受 理) 64 苣木 Cu3SbS4成 AsS4成 分...して検 量 線 を求 めれ ば,こ れ に よ って ル ゾ ナ イ Mankayanお よ びLobo両 新 潟 県 北 越 鉱 山,北 赤 石 両 鉱 山,台 の 鉱 山 産 ル ゾ ナ イ...bismuthinite and emplectite from the Toriyabe vein, Teinemine. B: Growth zoning band of mineral in luzonitefamatinite | | | Report (issue) | | Mountain (British Columbia,Canada) and El Teniente (Chile) porphyry copper deposits.........................important copperore minerals may include bornite andenargite. Ore minerals occur as disseminations and in stockworks...deposits include El Teniente and El Salvador inChile, Bajo de la Alumbrera in Argentina, Grasberg in...regional faults such as near deposits in northernChile (Behn and others, 2001; Gow and Walshe,2005), central...substantial amounts of copper may occur as bornite,enargite, and chalcocite. By-productminerals frequently |  | | Journal (article/letter/editorial) | | deposits in the western Luzon arc are determined:Lobo-Boneng (10.5±0.4Ma), Santo Niño (9.5±0.3 Ma), Black...Solomon Islands defines a significantmetallogenicprovince. The purpose of this paper is todocument the...(Fig. 1) delineates late Cenozoic metallogenicprovince typical of the western Pacificmargin. The chain...Guinaoang(Tirad) (Sillitoe and Angeles, 1985), theLobo and Boneng (Jacinto, 1977), the SantoNiño (Bryner...(1995), Guinaoang: Sillitoe and Angeles (1985),Lobo: this study, Santo(Wolfe et al., 1978) in the southwestern |  | | Journal (article/letter/editorial) | | enargiteluzonite Cu-Au deposit in Mankayan, BenguetProvince, Philippines.The principal orebody consists of...sulfidation-typeenargite-luzonite CuAu deposit in the Mankayan Mineral District, BenguetProvince, northern...SolomonIslands defines a significant metallogenicprovince.The Philippine archipelago is situated in the...the Santo Tomas II, BlackMountain, Santo Niño,Lobo and Boneng mines (Balce,1979; Sillitoe and Gappe...and Au-bearing skarndeposit of the Thanksgivingmine (Callow, 1967).The geologic outline and distribution |  | | Journal (article/letter/editorial) | | (Imai, 2002; Sajona and Maury, 1998), e.g., TheLobo-Boneng218and Santo Niño porphyry Cu-Au deposits...The Mid-Upper245Miocene deposits include theLobo-Boneng and Santo Niño porphyry Cu-Au deposits246...are summarized as follows.253(1) The MioceneLobo-Boneng porphyry Cu deposit is located north of the...biotite-altered quartz diorite262porphyry from theLobo deposit, represents the age of biotitization during...extracted by underground mining318from 1931 tomine closure in 1991 (Cooke and McPhail, 2001; Cooke |  | | Journal (article/letter/editorial) | | copper-typedepositlocatedin northwesternArgentina in theprovince of Catamarca. It was investigatedby Cities Service...very unusualassemblage:pyr[te-covellite-bornite-enargite-molybdenite-sphalerite-galena-marcasit.e-rhodochrosite-native... There are someindication.scentral Catamarcaprovince to the Mi Vida-Filosuggestinga ,relationbetweenthat...molybdenite,mgt= magnetite,cv = covellite,en =enargite,sph= sphalerite,gn = galena,rho= rhodochrosite...stronglyzonedrino (1950b), a lipariteby SisterandLobo (1966),and a quaternarygravelby Navarro (1969) |  | | Journal (article/letter/editorial) | | with sphalerite and galena at deeper part, whileenargite and stibnite at shallower levels associated with...through the Cenozoic in the island arc setting inmine was operated by Benguet Corporation by an open pit...municoang (Tirad) (Sillitoe and Angeles, 1985), theLobo and ipality of San Marcelino, Zambales, about 80... Fig. 2 Geology and alteration map of the Dizonmine and the vicinity (modified after Malihan, 1987)...stibnite cut across the porphyry system (Figs. 2, 3).Enargite is found at a shallower portion of these veins |  | | Journal (article/letter/editorial) | | MineraFMCLtda.,La Capitanfa163,LasCondes,Santiago,ChileAbstractThe ParadisePeakgold-silver-mercurydepositin...similarporphyrygolddepositsin the Maricungabelt, northernChile.An episodeof detachmentfaultingaffectedthe Pa...'"''"•-.'"•...•......'......'•..5..,'"'.":"PROVINCE•' "q'""""'"'""'"'•..".......'_..'•.'.•:.•':....recentlydiscoveredporphyrygold depositsat Marte,Lobo,were deposited(cf. Johnet al., 1991).Boiling of...ng palcowatertable descent.The La Coipadeposit,Chile, similarlylocated Gold-silver mineralizationimmediatelybeneatha |  | | Journal (article/letter/editorial) | | Published online September 2008The reaction ofenargite with alkaline NaClO solutions: an AFMand flow-through...08028, Catalunya, SpainAbstract: The reaction ofenargite, Cu3AsS4, with alkaline NaClO solutions is of...K). Likewise, the evolution of the reaction ofenargite powder (25< sizefraction< 53 lm) interacting...be on the order of 108 mol m2 s1.Key-words:enargite, oxidative dissolution, alkaline solution, AFM...experiment, sulphur, arsenic.1. IntroductionEnargite, Cu3AsS4, is a mineral of remarkable environmental |  | | Journal (article/letter/editorial) | | the country. The Taysan porof Mt. Loboproducedenargitewithsilverin a barite phyry copper depositis locatedin...The Tolos intrusive is 11 to 12 km wide and hasProvince. Gold was producedfrom the Antipolo an exposedlength...elongationapproximately northwest. The batholith is intruded intomine,located1.5kmwestof theTaysandisseminatedand to...peninsulaof Luzon are a complexof intra-Antipolo goldmine 1.5 km west of the batholith arc rifting and minor...theextensivepyroclastics.alongthe roadfrom DagatantoLobo. It is magneticand containsplant remainsand gastropodssuggest- |  | Lescuyer, J. L., Leistel, J. M., Marcoux, E., Milési, J. P., Thiéblemont, D. (1997) Late Devonian-Early Carboniferous peak sulphide mineralization in the Western Hercynides.Mineralium Deposita, 33 (1) 208-220doi:10.1007/s001260050141 | Journal (article/letter/editorial) | | (stannite, mawsonite),Bi (bismuthinite) and As (enargite) (Cesbron et al. 1985).Armorican Massif (ChaÃteaulin...part of this domain is overthrust by the Pulo doLoboUnit that has been aected by a Late Devonian compression...1995, 1996), whereas in the neighbouringPulo doLobo Unit, Eden and Andrews (1990) de®ne aGivetian to...les Jebilet (Maroc); une correÂlationavec laprovince pyriteuse du Sud de l'Espagne. CR Acad SciParis...Signature isotopique du plomb des amas sulfureÂs de laprovince de Huelva, Espagne. ConseÂquences meÂtallogeÂniques |  | | Journal (issue) | | crystalson quartz from an abandoned pyrophyllitemine nearSnow Camp, Alamance County, North Carolina...it.The efforts of clubs to promote safety duringmine and quarry visits should be stressed. Asa good...assemble a suite of properly labelled specimensfor themine or quarry office. Many of us knowof localities...lection of these fine stibnites from$75.00this newmine near Felsobanya.The xls on these are much larger...at that timegeologist at the ASARCO undergroundmine at Quiruvilca,Peru, presented to the Mineralogical |  | | Journal (article/letter/editorial) | | LOUIS, 14, MO.OPALS, BRILLIANT COLORS-Direct frommine,15 for $5.00. 10 ringsize cabochons (opal,amethyst...COLLECTION-Miniatures of dioptase. TigerMine; vanadinite, Old YumaMine;enargite crystals, Butte, Mont. $2 each... 75?.MoneybackCarlsbad, N e wguarantee.Lobo,Box144-R,Mexico.CAPPING BAROQUES IS N O...garnet dodecahedrons. Collectedin 1923 at TrotterMine. 1 V 2 x2 to 2x3. $2.00; $2.50; $3.00; $4.00.AXINITE...BakeriteBurkeiteActinoliteOrpimentBrauniteEnargitePriceiteJarositeLinarite•Amethyst•Turquoise |  | | Journal (article/letter/editorial) | | Deposit at Marte, NorthernChileTOMkS VILA,Minera Anglo AmericanChile Ltda., Avenida Pedro de Valdivia...Valdivia 295, Santiago,ChileRICHARD H. SILLITOE,27 West Hill Park, Highgate Village, London N6 6ND, England...CopiapS,ChileAND ENRIQUEVITERI**Minera AngloAmericanChile Ltda., ChaKarcillo840, CopiapC,ChileAbstract...Santiago,Chile.** Presentaddress:Avenida11 de Septiembre2250, Oficina1304, Santiago,Chile.0361-01...de losAndes)of the Atacamaregion(Regi6nIII)ofChile, some130 km eastof Copiap6(Fig. 1), theregionalcapital |  | 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) 199-217doi:10.1134/s1075701508030033 | Journal (article/letter/editorial) | | time. By analogy with porphyry Cu–Mo deposits inChile and the United States, the ore mineralization of...that are mined in the Maricunga Belt in northernChile are localized in early andlate Miocene volcanic...Valle, and othergold deposits); at some deposits (Lobo, Refugio), thiscap has been eroded. The deposits...a large volumeof ore are successfully mined inChile at a rather greatheight (3000–4500 m). The Marte...t, 1.43 g/t Au, 500 ppm Cu, and 4.6 ppmMo; theLobo deposit, with Au reserves of 128 t, 1.6 g/tAu, |  | | Book (volume) | | existence o f a new unconformity-vein style uraniumprovincein the Proterozoic of the Great Sandy Desert....the largest deposits inany established porphyryprovince. For a discussion ofthe accepted terminology...localised in the U.S. “South-west”，and in northernChile and southern Peru，and were Cu-Moorebodies (Gilmour...Cook and Porter;all in this publication) and inChile, Argentina and Peru inSouth America (see Camus;...Chuquicamata, ElAbra, La Escondida and El Teniente inChile, CerroColorado in Panama, Grasberg in Indonesia |  | | Report (issue) | | needed)names in capital letters above the list ofmine names. For example, theRawhide and Wonder districts...and Gooseberry. Epithermal quartz-alunite Au(orenargite gold) deposits are represented by the Pyramid...quartz-alunite Au orenargite gold deposits such as Goldfield,NV, Summitville, CO, and El Indio,Chile, are characterized...characterized by quartz-pyritegold-enargite veins and breccias in zones of high-alumina, acid-sulfatehydrothermal...sphalerite + galena + chalcopyrite +bornite toenargite + pyrite ± chalcopyrite in the central area (Wallace |
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