 | | Journal (article/letter/editorial) | | SupergeneMetal Enrichmentat La Escondida, Atacama Desert, Northern Chile CHARLES 1âą. ALPERS* AND GEORGE...leachedcappingof the porphyrycopperdeposit at La Escondida,Chile, permitsreconstruction of the paleohydrologic...gradesin surfaceexposuresand tops of drill holesat La Escondidaare significantlylower than actual copper...verticalprofilesindicatethat water table descentat La Escondidawasrelatively continuousin space,althoughnot...conclusions froma previousstudyof coppermassbalanceat La Escondida(Brimhall et al., 1985) which showedthat lateral |  | Reich, Martin, Chryssoulis, Stephen L., Deditius, Artur, Palacios, Carlos, ZĂșñiga, Alejandro, Weldt, Magdalena, Alvear, Macarena (2010) âInvisibleâ silver and gold in supergene digenite (Cu1.8S) Geochimica et Cosmochimica Acta, 74 (21) 6157-6173 doi:10.1016/j.gca.2010.07.026 | Journal (article/letter/editorial) | | FıÌsicas y MatemaÌticas, Universidad de Chile, Santiago, Chile b Advanced Mineral Technology Laboratory...FıÌsicas y MatemaÌticas, Universidad de Chile, Santiago, Chile Received 12 April 2010; accepted in revised...the Atacama Desert of northern Chile, the worldâs premier Cu province, were determined in detail using...Cu-content at 67â80 wt% Cu (Vaughan and Craig, 1978). Anilite (Cu1.76S), digenite (Cu1.8S), djurleite (Cu1.97S)...Cu-sulïŹdes, the Cu-rich members of this group (i.e. anilite, digenite, djurleite and chalcocite) are the most |  | | 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 JosĂ© PerellĂł, Richard H. Sillitoe, Constantino...of the RĂo Blanco-Los Bronces District, Central Chile: Development of Worldâs Greatest Known Concentration...Northern Chile Geologic Overview of the Escondida Porphyry Copper District, Northern Chile Geology of...N. Moreto, AndrĂ© Luiz Silva Pestilho, Mineral Province, Brazil Gustavo Henrique Coelho de Melo, Marco |  | Braxton, D. P., Cooke, D. R., Ignacio, A. M., Rye, R. O., Waters, P. J. (2009) Ultra-Deep Oxidation and Exotic Copper Formation at the Late Pliocene Boyongan and Bayugo Porphyry Copper-Gold Deposits, Surigao, Philippines: Geology, Mineralogy, Paleoaltimetry, and their Implications for Geologic, Physiographic, and Tectonic Controls. Economic Geology, 104 (3) 333-349 doi:10.2113/gsecongeo.104.3.333 | Journal (article/letter/editorial) | | (PNG) El Abra (Cl) Mocoa (Co) Boyongan (Ph) La Escondida (Cl) 0 FIG. 1. Maximum thickness of the leached...Locality abbreviations: Az = Arizona (USA), Cl = Chile, Co = Colombia, NM = New Mexico (USA), Pe = Peru...Rosa 150 Cuajone 120 Quellaveco 80 Toquepala 150â350 La Granja 200 Rio Blanco 52â189 Philippines Boyongan...24, 13, 16 9, 1 Reference Abbreviations: an = anilite, ant = antlerite, at = atacamite, az = azurite...(m) El Salvador Los Pelambres El Teniente La Escondida Chile El Abra Cerro Colorado Rosario Ujina Chuquicamata |  | Clark, Alan H., Tosdal, Richard M., Farrar, Edward, Plazolles V., Armando (1990) Geomorphologic environment and age of supergene enrichment of the Cuajone, Quellaveco, and Toquepala porphyry copper deposits, southeastern Peru. Economic Geology, 85 (7) 1604-1628 doi:10.2113/gsecongeo.85.7.1604 | Journal (article/letter/editorial) | | northernmostand northernChile, asat Chuquicamata andLa Escondida,and in the Copiap6miningdistrict,in all of whichareasa...geochronologyof in the central Andes of Peru and Chile, as in other overlyingignimbrite flows.FollowingHollingworth...the broaderCopiap6miningdistrictofnorth-central Chile (ca.lat 26Ăž-29ĂžS;Fig. 1),buildingonthepioneering...Oligoceneandearly (or middle) or truncate them in the mine areas. The occurrence Miocene interval. The prevalenceof...nationof pedimentation andthe restrictionof major anilite; Clark and Sillitoe, 1971). At Cuajone and erosion |  | | Book (volume) | | existence o f a new unconformity-vein style uranium province in the Proterozoic of the Great Sandy Desert....Iran ian P o rp h y ry C u-M o-A u D eposits Brent LA. Mclnnes, Noreen J. Evans, Frank Q, Fut Steve Garwin...lm alyk (K a rm ak y r-D a ln e e ) and S au k b u la k C u-A u P o rp h y ry System s, U zbekistan IgorM...the largest deposits in any established porphyry province. For a discussion of the accepted terminology...localised in the U.S. âSouth-westâïŒ and in northern Chile and southern PeruïŒand were Cu-Mo orebodies (Gilmour |  | Sikka, Desh B., Petruk, William, Nehru, Cherukupalli E., Zhang, Zheru (1991) Geochemistry of secondary copper minerals from Proterozoic porphyry copper deposit, Malanjkhand, India. Ore Geology Reviews, 6 (2) 257-290 doi:10.1016/0169-1368(91)90026-4 | Journal (article/letter/editorial) | | Geochemistry, Academy Sinica, Guiyang, Guizhou Province, People's Republic of China (Accepted after revision...(CugSs)spionkopite (Cu39S2a)-geerite (Cul.6oS)-anilite (CuL75S)-djurleite (CuL943S)-chalcocite (Cu2S)...sequence to covellite, i.e., chalcocite-djudeite-anilite-geerite-spionkopite-yarrowitecovellite. The excess...films of FeO (OH), bornite, idaite, covellite, anilite, and chalcocite. The tarnish varies in color from... 1 ). Since July 1982, a 2 million tpy open pit mine and mill complex is being operated by the Hindustan |  | | Report (issue) | | Mountain (British Columbia, Canada) and El Teniente (Chile) porphyry copper deposits.........................deposits include El Teniente and El Salvador in Chile, Bajo de la Alumbrera in Argentina, Grasberg in Indonesia...regional faults such as near deposits in northern Chile (Behn and others, 2001; Gow and Walshe, 2005), central...much as about 100°C for samples from El Teniente, Chile. When binned in 10°C intervals, the median reported...in the El Teniente data is 380°â390°C. At Bajo de la Alumbrera, Argentina, Ulrich and others (2001) reported |  | | Book | | Universidad de Concepci6n Casilla 4107 Concepci6n, Chile ISBN 978-3-642-88284-5 DOI 10.1007/978-3-642-88282-1.... . . . 37 The Metalliferous Ore Deposits of Chile and Argentina, and Their Geologic Framework J. Oyarzun... . . . . . . . . 147 X Contents El Aguilar Mine: An Ordovician Sediment-Hosted Stratiform Lead-Zinc.... . . . . . . . . . . . . . . . . . . 175 The "La Helvecia" Pb, Zn, and Barite Deposit, Argentina A...Sulfides in the Greenstone Belt of South-Central Chile - An Overview G. Alfaro and S. Callao . . . . . |  | | Book | | org/details/geologyofchile0000unse The Geology of Chile âą 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 |  | Mathur, Ryan, Ruiz, Joaquin, Titley, Spencer, Liermann, Laura, Buss, Heather, Brantley, Susan (2005) Cu isotopic fractionation in the supergene environment with and without bacteria. Geochimica et Cosmochimica Acta, 69 (22) 5233-5246 doi:10.1016/j.gca.2005.06.022 | Journal (article/letter/editorial) | | is replaced sequentially by digenite (Cu1.96S), anilite (Cu1.75S), geerite (Cu1.6S), spionkopite (Cu1.4S)...chalcopyrite from the El Teniente porphyry copper mine (e.g., Skewes and Stern, 1994; Maksaev et al., 2004)...[2000]). The bornite sample was from Collahuasi, Chile (described in Masterman et al. [2004]). The samples...Teniente Tt-8, El Teniente El-1, El Salvador Esc-1, Escondida C-1, Chuquicamata C-1, Chuquicamata C-2, Chuquicamata...supergene metal enrichment at La Escondida, Atacama Desert, Northern Chile. Econ. Geol. 84, 229 â257. Amend |  | Tornos, Fernando, Velasco, Francisco, Slack, John F., Delgado, Antonio, Gomez-Miguelez, Nieves, Escobar, Juan Manuel, Gomez, Carmelo (2017) The high-grade Las Cruces copper deposit, Spain: a product of secondary enrichment in an evolving basin. Mineralium Deposita, 52 (1) 1-34 doi:10.1007/s00126-016-0650-3 | Journal (article/letter/editorial) | | IsĂłtopos Estables, Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Avda. de las Palmeras, 4, 18100...only the secondary ore, the mine has a projected life until 2022. The mine will produce ca. 1 Mt of copper...Scheiber et al. (2015). HCH and HCL refer, following mine terminology, to cementation zones developed on the...approximate depth of 1500 m was attained. At the mine site, the basement is located at a depth of ca....calcarenite and sandstone-microconglomerate. At the mine site and unconformably above the basement, it contains |  | | Journal (article/letter/editorial) | | composition, consisting of djurleite ( CI.I,.~~_&~), anilite (CU,.~~S), and digenite (Cu,,,& POTTER, 1977; EVANS...plotted on a pepH activity diagram shown in Fig. 1 la balanced on Fe and Fig. 1lb balanced on Cu. The thick...conditions found in the arid environment of northern Chile (e.g., ALPERSand BRIMHALL,1989). At the other extreme...Atacama desert, northern Chile: Evidence from supergene mineralization at La Escondida. GSA Bull. 100, 16401656...supergene metal enrichment at La Escondida, Atacama desert, northern Chile. Econ. Geol. 84, 229-255. ANDERSON |  | | Book | | Associated with Volcanogenic Massive Sulfides, Fukazawa Mine, Hokuroku District, Japan St.1. KALOGEROPOULOS and...evidence they find in the barite zone at the Fukazawa mine as indicating the mixing of a circulating barium-rich...Hornfels D Ma jor Cu-Ni 47" o I 50KM , Fig. lA, B. Index (A) and generalized geologic map (B) of...contamination. Earth Planet Sci Lett 61 :97 -111 Kovach LA, Marsh BD (1981) Magma flow rate and partial fusion...1982), in the southern part of the Southern Cross Province (Porter and McKay 1981), and in the Circum-Superior |  | | Report (volume) | | based on considerations that extend far beyond the mine itself, in some instances relating to the overall...subject, as in a scale model of the workings of a mine, to a unifying concept that explains or describes...government believed might someday be economic ta mine. Stratiform deposits of large areal extent, such...EXAMPLES High Plateau, Del Norte Cty, USCA Coto Mine, Luzon, PLPN (Wells and others, 1946) (LeBlanc...DEPOSITS Name Ace of Spades Adobe Canyon Gp. Ajax Alice Mine Allan (Johnson) Alta Hill Althouse Alyce and Blue |  | | Journal (article/letter/editorial) | | ZrO2 (Ba,Sr)(Nb,Ti)2(O,OH)7 BaSO4 2Ca(SO4)·H2O (Ce,La)(CO3)F Be3(Sc,Al)2 Si2O18 Ca(UO2)6O4(OH)6·8(H2O)...Anatase Ancylite Andalusite Anglesite Anhydrite Anilite Ankerite Annabergite Anorthite (Ca end member plagioclase)...BaAl2Si2O8 (Ce,Th)O2 (Ce,Ca,Y)2(Nb,Ta)2O6(OH,F) (La,Ce,Ca)9(Mg,Fe)(SiO4)6[SiO3(OH)](OH)3 PbCO3 (Ca0.5Na...5Si3AlO12(OH)6 K5Ca8Si18O46(OH)·3(H2O) Ir3Fe (Ce,La,Ca,Th)4(Fe,Mg)2(Ti,Fe)3Si4O22 CaMnBe2Si5O13(OH)2·2H2O...Gallite Gallobeudantite Garnet (Ce, La)Al3(PO4)2(OH)6, (Ce,La)F3 CaF2 Mg2SiO4 Pb(UO2)4O3(OH)4·4(H2O) | | | Journal (article/letter/editorial) | | ZrO2 (Ba,Sr)(Nb,Ti)2(O,OH)7 BaSO4 2Ca(SO4)·H2O (Ce,La)(CO3)F Be3(Sc,Al)2 Si2O18 Ca(UO2)6O4(OH)6·8(H2O)...Anatase Ancylite Andalusite Anglesite Anhydrite Anilite Ankerite Annabergite Anorthite (Ca end member plagioclase)...BaAl2Si2O8 (Ce,Th)O2 (Ce,Ca,Y)2(Nb,Ta)2O6(OH,F) (La,Ce,Ca)9(Mg,Fe)(SiO4)6[SiO3(OH)](OH)3 PbCO3 (Ca0.5Na...5Si3AlO12(OH)6 K5Ca8Si18O46(OH)·3(H2O) Ir3Fe (Ce,La,Ca,Th)4(Fe,Mg)2(Ti,Fe)3Si4O22 CaMnBe2Si5O13(OH)2·2H2O...Gallite Gallobeudantite Garnet (Ce, La)Al3(PO4)2(OH)6, (Ce,La)F3 CaF2 Mg2SiO4 Pb(UO2)4O3(OH)4·4(H2O) |  | | Report (issue) | | Average composition from various types of ore, Thierry mine, Ont. ACANTHITE. Sakharova and Bryzgalov, Mineral...Analyses from Lavrion, Greece (not in abstr.). AGARDITE-(La). Fehr and Hochleitner (Lapis 1, 22, 37) (1984)(German)...87M/2325 (1987) Analyses (not in abs.) from'Koryu mine, Hokkaido, Japan AIKINITE. Boldyreva (Zap. Vses...analyses (4) from volcanic rocks, Laguna del Maule, Chile. AMPHIBOLE. Friend and Janardhan, Mineral. Mag....415-436) (1987) Microprobe analyses (4), Grenville Province, Canada. AMPHIBOLE. Thomson et al. (Can. Mineral |  | | Book | | Azurite crystals, partly replaced by malachite, Tsumeb mine, Namibia; width of view ca. 3 cm; collection H.E...the Medieval Latin word mina = shaft (minare = to mine). The antique people, e.g., the Greeks and Romans...between a1, a2 and a3. Examples: bastnĂ€site, (Ce,La,Y)CO3F, benitoite, BaTi[Si3O9]. 5 *622, hex.-trapezohedral:...the groundwater. Therefore, outflow of mine water or from mine dumps, but also from geothermal power stations...Silesia, Poland, that had served as an outflow of mine water from a gold-arsenic deposit for many decades |
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