 | | Journal (article/letter/editorial) | | example of the Cretaceous lava series from central Chile Francisco Fuentesa, Gilbert Féraudb,*, Luis Aguirrea...Geologı́a, Universidad de Chile, Casilla 13518, Correo 21, Santiago, Chile UMR 6526 Géosciences Azur...de Chacana area, in the Coastal Range of central Chile. On the same lava series, and even on the same rock...low-grade metamorphic event (by dating sericite and/or adularia). Sericite was dated on step heated single grains...Ages of 96.8F0.2 and 97.0F1.6 Ma displayed by adularia and sericite (respectively) are slightly older |  | | Journal (article/letter/editorial) | | AND SUPERGENE WEATHERING IN THE EL PEÑÓN DISTRICT, NORTHERN CHILE IAN WARREN,† Yamana Gold, 9670 Gateway...Zealand Abstract The El Peñón epithermal gold-silver deposit, Region II, Chile, comprises multiple epithermal...Paleocene metallogenic belt of northern Chile. Quartz-adularia-carbonate veins are hosted in Paleocene...related to precious metals mineralization of the El Peñón deposit. Timing of hydrothermal activity in...of weathering are constrained by ages for vein adularia, hypogene alunite, and supergene alunite determined |  | | Journal (article/letter/editorial) | | fissure veins cutting contact hornfelses. In the E1 Soldado region the lead ores are particularly rich and...supergene alteration are Cantos Blancos and E1 Soldado. Despite the lack of control for some samples the...Blancos (N) (Cu) Cantos Blancos (N) (Cu) El Cordobes (Bi) El Cordobes (Bi) Espuela de San Miguel (Bi)...(Bi) Lolita (Bi) El Soldado (N) (Pb) El Soldado (N) (Pb) El Soldado (N) (Pb) E1 Soldado (S) (Pb) ? K f...wallrock were collected both from in situ exposures and mine heaps. Descriptions of the analysed samples are |  | Arfè, Giuseppe, Boni, Maria, Mondillo, Nicola, Aiello, Roberto, Balassone, Giuseppina, Arseneau, Vernon, Soyk, Dominik (2016) Supergene Alteration In the Capricornio AU-AG Epithermal Vein System, Antofagasta Region, Chile. The Canadian Mineralogist, 54 (3) 681-706 doi:10.3749/canmin.1600012 | Journal (article/letter/editorial) | | Au-Ag EPITHERMAL VEIN SYSTEM, ANTOFAGASTA REGION, CHILE GIUSEPPE ARFȧ AND MARIA BONI* Dipartimento...mineralization occurs in multiple epithermal quartz-adularia-carbonate mineral veins, which extend from the...INTRODUCTION The Antofagasta region in northern Chile hosts many of the world’s significant porphyry Cu...owned by SQM Inc. (Sociedad Quı́mica y Minera de Chile), hosts a low-sulfidation epithermal Au-Ag vein system...other important epithermal Au deposits, including El Peñón (Warren 2005, Warren et al. 2004, 2008) and |  | | Journal (article/letter/editorial) | | Low-sulfidation Epithermal Gold Deposits of Chile Shoji KOJIMA* Abstract: In Chile the principal gold deposits of...epithermal gold deposits in continental arcs such as Chile, is an important subject not only for gold metallogeny...the South American Continent. 1. Introduction Chile has been a world-class gold producer, in addition...type (or adularia-sericite type). These two styles of epithermal mineralization occur in Chile, particularly...eastern Precordillera. Additionally, in central Chile, major porphyry copper deposits (late Miocene-Pliocene) |  | | 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...Sulfides in the Greenstone Belt of South-Central Chile - An Overview G. Alfaro and S. Callao . . . . ....Formation and Massive Sulfide Orebodies, South-Central Chile: Geologic and Isotopic Aspects S. Callao, G. Alfaro |  | | Journal (article/letter/editorial) | | Abstract Volcanic rocks hosting quartz ± calcite ± adularia ± illite epithermal deposits undergo elemental...identification of important hydrothermal minerals (e.g., adularia, illite, smectite) and alteration processes that...around precious metal epithermal quartz ± calcite ± adularia ± illite deposits (e.g., Buchanan, 1981; White...alteration minerals for the El Peñón epithermal deposit, northern Chile. The same techniques are applied...boiling, in particular, causes precipitation of adularia (Browne and Ellis, 1970; Simmons and Browne, 2000) |  | | Report (issue) | | 37.62±0.05 Ma (MSWD = 0.53). Reported as Copper Mine Point granodiorite, same pluton as Cox and others...Location derived from Wikipedia for Copper Mine Point copper mine; accuracy of location relative to this...using constants of Steiger and Jager (1977). Copper Mine Point, Virgin Gorda batholith. Two concordant fractions...km east of Santiago de Cuba, southern Oriente Province. Latitude and longitude approximate. Early to...km west of Santiago de Cuba, southern Oriente Province. Latitude and longitude approximate. Paleocene |  | | Journal (article/letter/editorial) | | previous ideas on what is without doubt a kind of “mine field”, because if a classification is based on...al., 2007): 1) Planetary-scale deposit-hosting province or planetary-scale metallogenic belt (1000 x...subprovince (2 to 20 by 103 km2); T 4) metallogenic province (20 to 40 x 103 km2); 7) ore cluster (concentration...anomalous concentration of metals Operating/abandoned mine: workings that are operating or on care and maintenance...mineral system remains, if I may use the expression, a mine field, as testified by the abundance of books and |  | | Report (issue) | | en el modelaje de yacimientos minerales. Los colegos del Geological Survey de Canada preceden el presente...canadiense. En la industria minera es bien conocido el axioma que dice que cualquiera escusa sufice para...han descubierto mas yacimientos minerales. Aunque el concepto de modelos ha sido utilizado por muchos...Mississiippi Valley no se puede haber originado de uno o el otro los procesos singeneticos o de las aguas superficiales...eran esfuerzos empiricos que intentaban extender el conocimiento proveniente de experiencias previas |  | | Journal (article/letter/editorial) | | episodic burial metamorphism in the Andes of central Chile Received: 11 March 2003 / Accepted: 14 August 2003...Departamento de Geologı́a, Universidad de Chile, Santiago, Chile breaks. Accordingly, this study suggests...metamorphic events as reported for the Coastal Ranges of Chile (Levi 1969). This distinctive evolutionary model...most specific ages for secondary minerals are from adularia (93 Ma) or celadonite (101 Ma; Aguirre et al....episodes to those represented in the central Andes of Chile. However, the results show that for the area of |  | | 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 |  | | Report (chapter) | | dating on samples from porphyry deposits in Iran, Chile and Indonesia in order to investigate their genesis...world’s largest Cu-Mo porphyry deposit, Chuquicamata, Chile. We present new thermochronology data (Table 3,...intrusive. Selected porphyry deposits Chuquicamata, Chile. The thermal history of the world’s largest porphyry...71% Cu and 0.01% Mo) at Chuquicamata, northern Chile has been studied extensively and from various perspectives...strike-slip feature that cuts through Northern Chile. The vertical displacement along the fault was determined |  | | 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 |  | | Book | | affects its present characteristics as a minera1 province, because of the exposure of the various depth...+j//+V+\ Henderson^*/-\ El Teniente K\ ^ΐ&^" 4km tourmaline f breccia pipes Chile Fig. 27-4. + + +...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...and contains the principal Soviet porphyry Cu-Mo province estimated to represent some 15 Mt Cu and 200 Tt |  | | Book | | affects its present characteristics as a mineral province, because of the exposure of the various depth...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...and contains the principal Soviet porphyry Cu-Mo province estimated to represent some 15 Mt Cu and 200 Tt...and Au mineralization this is a distinct Sn(W) province. 1026 Fig. 28-9. Kounrad "porphyry" Cu-Mo deposit |  | | Book (volume) | | Lomero-Poyatos. Maria Luisa Mines of the Vuelta Falsa-El Toro (Paymogo-Huelva) lineament Lugo district . Silver...Barruecopardo Golpejas or Bellita mine Morille-Martinamor El Cubito El Trasqui16n. Santa Maria . La Parrilla...Phosphates . Celestine Gypsum Magnesite Eugui Rubian • El Escorial • Valderrodero • Other showings Special...provinces Polymetamorphic Caledonian-Hercynian-Alpidic province Northern Alpine chain Southern Alpine chain C...(mainly) Alpidic province Alpidic plutonic sub-province . Alpidic volcanic sub-province . Alpidic tectonized |  | | Book | | PUBLISHING COMPANY D. M. Davidson, Jr., Business Manager, El Paso, Texas Printed by Lancaster Press, Inc., Lancaster...base of the Complex (Vermaak, 1976). At the Atok mine, platinoid minerals tend to occur at the boundaries...above the copper-zinc orebody at Prieska, Cape Province, in an intermediate to salic volcanic as¬ semblage...possibly the base metal deposits of the northern Cape Province, South Africa (Kroner, 1978). Deposition may have...Butte, or in breccia zones and pipes, as at El Teniente, Chile. The sericite-clay-pyrite assemblage is reminiscent |  | | Report (volume) | | Planet Sci Lett 201:593-607 Young EJ, Myers AT, Munson EL, Conklin NM (1969) Mineralogy and geochemistry of...Constraints on the age of the British Tertiary volcanic province from ion microprobe U-Pb (SHRIMP) ages for acid...the Front Range, Colorado. J Geol 72:493-525 Heffem EL, Coates DA (2004) Geologic history of natural coalbed...precisely the exhumation age, but in practice one must “mine deeper” into the profile to extract enough He to...relate lag time to source-region erosion rate: f f EL \ e2l ^ 1-exp — + y 1 - exp — K L k J- 1 h J. Technically |
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