| ElucidarioProvee contexto, definición y detalle de un tópico específico. ALGUNAS TEORÍAS. The cyclic rise of metal-rich, moderately saline fluids that issued from dilution of hypersaline fluids stored (Ed. En la siguiente fecha, a jugarse el martes 17, España será local contra Alemania, mientras que Suiza se verá las caras ante Ucrania. Categoría:Estadios de Suiza | Futbolpedia | Fandom. replacement sulphide bodies, (2) a weakly mineralized porphyry Cu-Au-Ag-(Mo) system associated with several feldspar-biotite porphyry dikes and breccias, (3) a second porphyry system associated with sericite-clay(illite)-chlorite alteration (SCC) with significant mineralization of Cu-Au-Ag-(Mo), (4) a high sulphidation epithermal system with Cu-Au-Ag-As-Sb developed in Miocene volcanic rocks and subvolcanic intrusions with major enargite-pyrite structures and finally (5) an epithermal intermediate sulphidation system with "Carbonate Base Metal" mineralization of Au-Ag-Pb-Zn-Cu associated with rhyolitic dikes and stocks. © 1999 Canadian Institute of Mining, Metallurgy and Petroleum. On the surface, towards the margins of the lithocap, quartz-sericite-pyrite alteration is observed (Fig. mineralised faults were controlled by northerly striking faults associated with the Old Man Fault, a major regional structure with a complex history of reactivation from the Cretaceous to the present. The Geological Survey Canada operates a network of 14 magnetic observatories throughout Canada, located as follows:[5][6]. La siguiente es una lista de estadios de fútbol en Suecia, ordenados por capacidad. Bissig, T., Ulrich, T., Tosdal, R., Friedman, R. and Ebert, S., 2008. The discrimination of the three mineralization stages A, B, and C at La Tapada has allowed a more accurate resource modelling, including geometallurgical implications. The systems commonly define linear belts, some many hundreds of kilometers long, as well as occurring less commonly in apparent isolation. … Intermineral porphyries IMP1 and IMP2 contain all the types of veinlets described above, but the abundance of A veinlets is between 2 to 5%, and their width less than 2 cm. In the polymetallic mineralization, three stages have been distinguished (Bernaola et al. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Access scientific knowledge from anywhere. Au-carbonate veins; and, economically most important, (3) quartz-roscoelite-Au veins and breccias. Futbolpedia. There is an asymmetric alteration zonation, with a core of silicic-potassic (adularia) and smectite-illite clay alteration that is bounded to the east by argillic alteration. Explora wikis; Comunidad Central; Crear un wiki; Buscar Iniciar sesión ¿No tienes una cuenta? Estadíos de mineralización en La Tapada, yacimiento cordillerano polimetálico Carhuacayán, Perú Central: su aplicación para modelar recursos y definir nuevos targets de exploración. The sequence of alteration-mineralization events charted above is principally a consequence of progressive rock and fluid cooling, from >700° to <250°C, caused by solidification of the underlying parental plutons and downward propagation of the lithostatichydrostatic transition. ), Geology and Ore Deposits of The rheology and composition of the host rocks may strongly influence the size, grade, and type of mineralization generated in porphyry Cu systems. R., Espinoza, S. y Díaz, M., 2019. The Cu-Au Santa Bárbara porphyry consists of a typical sequential system of quartz monzonite porphyries cut by intrusive polymictic and monomictic breccias (Fig. Local high Au grades up to 9.36 g/t found in B stage pyrite aggregates are attributed to stage C. The presence of fahlore, kaolinite, illite, and Ca-Mg-Fe-Mn carbonates indicate intermediate-sulfidation conditions. Noble, D. y McKee, E., 1999. La policía suiza registra la sede de la UEFA debido al escándalo de los "Panamá Papers". The Geological Survey of Canada (GSC; French: Commission géologique du Canada (CGC)) is a Canadian federal government agency responsible for performing geological surveys of the country, developing Canada's natural resources and protecting the environment. 895-922. Even if age of 15 Ma based on molybdenite Re–Os age is used to calculate the initial 187Os/188Os, the ratios show a wide range and low ratios of 187Re/188Os (<5000) is not suitable to calculate the model ages. Bernaola, R., Espinoza, S., Díaz, M., Figueroa, O., Farfán, C. y Fontboté, L., 2019. Chalcopyrite and minor contents of bornite occur scattered in all veinlets and in the matrix in a ratio of 3:1. En cambio, se encuentran en una fase preliminar los preparativos para erigir la fachada frontal del estadio, que está hecha de una membrana azul y blanca resistente al viento. replacement bodies (stage A), (2) deep quartz-pyrite veins (stage B1) and a funnel-shaped massive replacement body of pyrite-quartz (stage B2) with quartz-sericite ± kaolinite alteration, and (3) well-zoned Zn-Pb-(Bi-Ag- Cu) carbonate-replacement orebodies (stage C1) and E-W–trending Cu-Ag-(Au-Zn-Pb) enargite-pyrite veins Low sulfidation-state chalcopyrite ± bornite assemblages are characteristic of potassic zones, whereas higher sulfidation-state sulfides are generated progressively upward in concert with temperature decline and the concomitant greater degrees of hydrolytic alteration, culminating in pyrite ± enargite ± covellite in the shallow parts of the lithocaps. Eocene to late Miocene magmatism in the central Peruvian high-plain (approx. References de los estadíos evidencia una transición en las. Type "B" (<2 cm) veinlets are less abundant. The systems are closely related to underlying composite plutons, at paleodepths of 5 to 15 km, which represent the supply chambers for the magmas and fluids that formed the vertically elongate (>3 km) stocks or dike swarms and associated mineralization. Registrarse Crear un wiki. All content in this area was uploaded by Lluís Fontboté on Nov 04, 2019, Central Peru: its application to resources modelling. Gold occurs in early, multi-phase, variably bladed and banded quartz veins and breccias, which are cut by barren, single phase, drusy quartz veins. The alteration-mineralization in the porphyry Cu deposits is zoned upward from barren, early sodic-calcic through potentially ore-grade potassic, chlorite-sericite, and sericitic, to advanced argillic, the last of these constituting the lithocaps, which may attain >1 km in thickness if unaffected by significant erosion. It is accompanied by quartz-sericite alteration. El St. Jakob-Park, en Basilea, es el estadio con mayor capacidad de espectadores del país, con 38.512. This age is similar to that of the neighboring Cordilleran polymetallic deposit of Carhuacayán (, Exploración bajo un lithocap en el pórfido Au-Cu Santa Bárbara, Carhuacayán -Franja miocénica en el Perú Central: Importancia del reconocimiento de distintas fases intrusivas. A, B1, B2, and C2 and down to 150°C in stage C1), and show a wide salinity range (1.2–19 wt % NaCl equiv) with commun., 2019). The La Tapada is part of the late Miocene Carhuacayán Cordilleran polymetallic deposit, emplaced in Cretaceous carbonate and siliciclastic rocks, and that is interpreted as the last event of a multistage porphyry system. Mineralised structures were apparently normal faults that formed in the middle to late Cretaceous during regional extension of the Otago schist belt. Erosion level is a cogent control on the deposit types that may be preserved and, by the same token, on those that may be anticipated at depth. Resúmenes proEXPLO 2019. distintas fases intrusivas. Such a mechanism may also explain moderate-salinity The mineralization of Cu-Au has been introduced mainly during the potassic alteration of the early porphyry EP. In the spring of 1843, Logan established the GSC's headquarters in Montreal (in his brother's warehouse and then in a rented house on Great St. James Street (now Saint Jacques Street). La siguiente es una lista de los estadios de fútbol de Suiza ordenados por capacidad de espectadores. Lista de estadios de Portugal; Última edición el 14 sep 2019 a las 07:44. [1] After Aylesworth Perry was appointed as acting librarian in 1881 he prepared the catalogue of reference works on geology, mineralogy, metallurgy, chemistry and natural history. Las obras en el terreno de juego se han completado. If you continue browsing the site, you agree to the use of cookies on this website. Carhuacayán, Perú Central: su aplicación para modelar recursos y definir nuevos targetsde exploración. (stage C2); stages C1 and C2 are accompanied by advanced argillic alteration. Based on the two dates for roscoelite, the age of the main ore deposition event is interpreted to be 5.92ǂ.08 Ma. DESARROLLO SOCIO-EMOCIONAL. The following intrusive phases, from oldest to youngest, have been recognized: (1) dacite porphyry (DP), approximately 1.5 km in diameter, (2) subvertical intrusive monomictic breccia body that at the contact with the host sedimentary rocks is polymictic, and (3) quartz feldspar porphyry (QFP) 230 m in diameter that crosscuts Fig. Advanced argillic alteration (quartz, pyrophyllite, dickite, alunite, kaolinite) and "ledges" of quartz-alunite that crop out (<20 cm) form an extensive lithocap (Figs. Commonly, several discrete stocks are emplaced in and above the pluton roof zones, resulting in either clusters or structurally controlled alignments of porphyry Cu systems. Mediocampista; Defensa; Delantero; Portero; Líbero; Porteros; Enganche; Estadios. All rights reserved. Porphyry Cu systems are initiated by injection of oxidized magma saturated with S- and metal-rich, aqueous fluids from cupolas on the tops of the subjacent parental plutons. Mineralization Stages and Alteration Gold mineralization, in hydrothermal breccias, veins and stockworks developed mainly in Skonun sediments and dacite. Depending location, below elevations between 3,950 and 4,050 m, it can be observed that at the contact of the early porphyry EP with the intermineral porphyries the grades drop sharply (Fig. At La Tapada, they trace the transition from low to intermediate sulfidation conditions in the hydrothermal fluid. 1). Players may hold more than one non-FIFA nationality. Five drillings conducted in 1996 by Rio Tinto Mining and Exploration (RTZ) yielded a resource of 76 Mt at 0.4 g/t Au and 0.3% Cu. 2. It is assumed that most of the Cu and Au mineralization has been introduced during potassic alteration with development of A quartz veinlets (Sillitoe, 2017). Wikis. Red beds of the the Casapalca Formation (Upper Cretaceous-Paleogene) and Upper Cretaceous limestones of the Jumasha Formation are the main country rocks. Other sulfides are rare, and are identified only microscopically. similar temperatures to the moderate-salinity fluid. High-sulfidation epithermal deposits may occur in lithocaps above porphyry Cu deposits, where massive sulfide lodes tend to develop in deeper feeder structures and Au ± Ag-rich, disseminated deposits within the uppermost 500 m or so. Cu and Mo have different. Figueroa, O., Farfán, C., Fontboté, F., Bernaola, R., Espinoza, S. and Díaz, M., 2019. Many features of porphyry Cu systems at all scales need to be taken into account during planning and execution of base and precious metal exploration programs in magmatic arc settings. The Geological Survey of Canada (GSC; French: Commission géologique du Canada (CGC)) is a Canadian federal government agency responsible for performing geological surveys of the country, developing Canada's natural resources and protecting the environment. [1], William Edmond Logan was in Montreal at the time and made it known that he was interested in participating in this survey. The intrusive polymictic breccia contains early, intermineral, and late porphyry fragments. 5:55. environment, where it in turn mixed with low-salinity fluids that were stored below the paleowater table and had Gold and silver occur as electrum; individual silver minerals have not been identified. Sillitoe R., 2017, Comments on the Carhuacayán, Cerro de Pasco, Pedregal and Chumpe projects, Central Peru/ Memorándum interno de Volcan Compañía Minera S.A.A., 13 p. Introduction and Geology Resúmenes proEXPLO 2019. Véxase tamén Ligazóns externas. it (Peru), and thus to better understand the role of boron-rich fluids for the formation of major Sn deposits. bajo un lithocap en el pórfido Au-Cu Santa Trace element LA-ICP-MS analyses of sphalerite, pyrite, and enargite also reveal important compositional differences. ESTADIOS DE PIAGET 2. This same liquid also causes mineralization of the peripheral parts of systems, including the overlying lithocaps. Extended abstracts, p. 73-77. diorita cortan a los intrusivos. To date, a resource of 143.8 Mt @ 0.52% Cu equivalent has been estimated, whereby parts of the deposit remain open to exploration. 7, p. 155. The deposit lies within an elongate zone of moderate to intense hydrothermal alteration that, at surface, extends over a known area of approximately 2 km 2. Geological and hydrothermal alteration map of the Santa Bárbara Cu-Au porphyry deposit. El St. Jakob-Park, en Basilea, es el estadio con mayor capacidad de espectadores del país, con 38.512. This age is similar to that of the neighboring Cordilleran polymetallic deposit of Carhuacayán (Bernaola et al., 2019) and other late Miocene deposits in central Peru such as the giant Toromocho Cu-Mo deposit (7.3-6.8 Ma, Catchpole et al., 2015). epithermal polymetallic mineralization has formed in the shallow part of a porphyry system. Source: Liga Portugal. The Canadian National Seismograph Network is monitored by the Geological Survey of Canada. The contents of Re, common Os and 187Os in these four sulfides are 0.145–32.9 ppb, 0.0022–0.0669 ppb and 0.0003–0.0118 ppb, respectively. Similarly, as in other Cordilleran deposits, three main stages of polymetallic mineralization are recognized. Bissig et al. giant epithermal polymetallic deposit of Cerro de Pasco. Asistió a la Universidad de Neuchatel en Suiza, donde él recibió es el grado de Doctorado en Biología. The date of the magmatic biotite is interpreted to represent the age of the intrusions more accurately than the hornblende dates because small amounts of excess 40Ar were present in the hornblende samples. sulfide and/or sulfosalt inclusions. Estadio; Superficie: Céspede: Dimensións: 105 x 68: Capacidade: 19 694: Propietario: FC St. Gallen: Localía: FC St. Gallen: O Kybunpark, anteriormente AFG Arena, é un estadio multiusos, usado principalmente para fútbol, de St. Gallen, Suíza. 1) have been distinguished on the basis of veinlet types, crosscutting relationships, and other fabric features. Fig. Exploración bajo un lithocap en el pórfido Au-Cu Santa Bárbara, Carhuacayán - Franja miocénica en el Perú Central: Importancia del reconocimiento de distintas fases intrusivas. Implications for Resource Modelling and Exploration ... Esto ha sido clave para la exploración y evaluación del yacimiento. Chlorite-sericite alteration (illite, smectites, and relicts of potassic alteration and partial martitized magnetite) appears beneath it. formed during three successive mineralization stages resulting in low- to high-sulfidation mineral associations Magmatic-hydrothermal breccias may form during porphyry intrusion, with some of them containing high-grade mineralization because of their intrinsic permeability. The late porphyry LP shows no visible alteration. metallogenic belt of central and northern Peru, In: In 2016-2017, Volcan Compañía Minera began an exploration campaign with surface mapping, geochemical rock sampling and drilling (9,087 m in 16 drill holes). Recognition of single ore deposit types, whether economic or not, in porphyry Cu systems may be directly employed in combination with alteration and metal zoning concepts to search for other related deposit types, although not all those permitted by the model are likely to be present in most systems. A branch of the Earth Sciences Sector of Natural Resources Canada, the GSC is the country's oldest scientific agency and was one of its first … Pyrite typically forms idiomorphic crystals. Late Tertiary coarse clastic sediments and lesser andesitic volcanic rocks of the Skonun Formation to the east. The Re–Os results of these four types of sulfides indicate that Re–Os isotope system at Jiama has been affected by the disturbance. The moderate-salinity metal-rich magmatic fluid cannot be interpreted as an evolved intermediate-density fluid Cyclic dilution of magmatic metal-rich hypersaline fluids by magmatic low-salinity fluid: a major process generating the giant epithermal polymetallic deposit of Cerro de Pasco, Peru. Similar zoning defined by the distribution of metals reflects the position of the main feeder conduit. Source: Head-to-head away goals: Braga 1, Sporting 0. Estadios por país; Estadios demolidos ; Estadios por … The Geological Survey of Canada first began allowing women to conduct fieldwork in the early 1950s. Universidad Nacional San Antonio Abad del Cusco, Cusco, Exploración bajo un lithocap en el pórfido Cu-Au Santa Bárbara, Carhuacayán - Franja miocénica en el Perú Central: Importancia del reconocimiento de distintas fases intrusivas, Santa Bárbara Cu-Au porphyry deposit, dentral Peru Miocene Belt: geology, intrusive phases, alteration and mineralization, Mineralization stages at La Tapada in the Cordilleran polymetallic deposit of Carhuacayán, central Peru: Applications for resource modelling and exploration, Cyclic Dilution of Magmatic Metal-Rich Hypersaline Fluids by Magmatic Low-Salinity Fluid: A Major Process Generating the Giant Epithermal Polymetallic Deposit of Cerro de Pasco, Peru, The time-space distribution of eocene to miocene magmatism in the Central Peruvian Polymetallic Province and its metallogenetic implications, Magmatic-hydrothermal transition at the world-class San Rafael Sn deposit (Peru). This resource is hosted in a low-sulfidation epithermal deposit of Miocene age that is localized along the northwesterly-trending Sandspit fault. Juegos Películas TV. : Economic Geology, v. 113, p. 825–856. Massive magnetite followed by pyrrhotite intergrowth with Fe-rich sphalerite are the main minerals and outline low sulfidation conditions. 1). Field evidence indicates that the Main The recognition of these three stages has allowed to optimize the resource modelling and to refine the exploration model. Estadio de São Miguel: 2,450: Gondomar: Gondomar Sport Clube: 50: Campo SC Freamunde: 1,500: Freamunde: SC Freamunde: Enlaces externos Wikimedia Commons alberga una categoría multimedia sobre Estadios de fútbol de Portugal. Keywords: gold, orogenic, faults, joints, veins, extension, supergene, Otago schist. Fig. Looks like you’ve clipped this slide to already. ProExplo2019. 1. between a moderate-salinity metal-rich magmatic fluid and a low-salinity fluid at the (shallow) site of deposition. Estadios de piaget diapositivas 1. The black shale in the Cretaceous Linbuzong Formation is one possible source for Re–Os as we can see from the wide range of initial 187Os/188Os. Cross section at Carhuacayán showing mineralization stages A, B, and C. They are filled by quartz, pyrite, Fe-poor sphalerite, galena, Ag-bearing sulfosalts with high Late-stage alteration overprints may cause partial depletion or complete removal of Cu and Au, but metal concentration may also result. Páxinas na categoría "Estadios de fútbol de Suíza" As seguintes 10 páxinas están nesta categoría, dun total de 10 The Miocene Ullevi: 43.200: … © 2008-2020 ResearchGate GmbH. has been exploring the area. Mineralization of altered wallrock is dominated by 1% to 4% auriferous pyrite and marcasite. No Stage B is composed by massive pyrite bodies parallel to bedding replacing stage A. Magnetita, pirrotita y esfalerita en manto de estadío A con skarn de serpentina. Stage C is formed by sets of subvertical veinlets, veins, and breccias crosscuting the previous stages and striking NE-SW, subordinately NW-SE; the width of these veins varies from 0.5 cm to 1.2 m showing comb and crustiform textures. The plutons may erupt volcanic rocks, but generally prior to initiation of the systems. This estimation takes into account that ore grades are low in the upper part of the deposit owing to overprinting by advanced argillic alteration favored by telescoping. They are hosted by magnesian skarn bearing serpentine, talk, tremolite, phengite, phlogopite, calcite, and chlorite. The date for hydrothermal biotite is interpreted to be the age of the alteration associated with the magnetite-sulfide - Au veins (the paragenetically earliest veins), and thus reflects the age of the onset of the mineralizing activity at Porgera. Lower-grade intermineral porphyries that emerge at the edges and in depth have imbibed parts of the early porphyry. Resúmenes proEXPLO The Late Miocene Santa Bárbara Cu-Au porphyry deposit is located 2 km NE of the old Carhuacayán mine and 3.5 km N-W of the town Santa Bárbara de Carhuacayán (Figueroa et al., 2019). stable isotopic data allow reconstruction of the evolution and tracing of the source(s) of the mineralizing fluids.   Draw Añadir página. emplaced at a paleodepth from <500 to 1,500 m: (1) pyrrhotite pipes grading outward to sphalerite and galena El estadio de Nizhni Nóvgorod será el escenario del Suecia-República de Corea el próximo 18 de junio. ... Esta edad es similar a la del Figura 2. area supports the hypothesis that magnesium input was part of the hydrothermal alteration related to mineralization. The specogna gold deposit: A late tertiary, low-sulfidation epithermal hot spring deposit, Graham Is... Short life-span of the ore-forming system at the Porgera gold deposit, Papua New Guinea: Laser 40Ar/... Re-Os systematics of sulfides (chalcopyrite, bornite, pyrite and pyrrhotite) from the Jiama Cu-Mo de... Conference: Proexplo2019, extended abstracts, p. 73-77. the intrusive breccia. hypersaline fluids and low-salinity magmatic fluids exsolved late in the lifetime of the magmatic-hydrothermal El contenido está disponible bajo la licencia, Última edición el 26 may 2020 a las 01:26, https://es.wikipedia.org/w/index.php?title=Anexo:Estadios_de_fútbol_de_Suiza&oldid=126389734, Licencia Creative Commons Atribución Compartir Igual 3.0. Porphyry Cu ± Au ± Mo deposits are centered on the intrusions, whereas carbonate wall rocks commonly host proximal Cu-Au skarns, less common distal Zn-Pb and/or Au skarns, and, beyond the skarn front, carbonate-replacement Cu and/or Zn-Pb-Ag ± Au deposits, and/or sediment-hosted (distal-disseminated) Au deposits. Three types of veins occur: (1) magnetite-sulfide - Au-carbonate veins; (2) base-metal sulfide -, The Jiama Cu–Mo deposit, one of the largest skarn-porphyry deposits in China currently being mined, is located in the eastern part of the Gangdese porphyry Cu belt, Tibet, China. 1. The late porphyry LP does not contain veinlets and occurs in the NE part of the project (Fig. El Friends Arena en la ciudad de Estocolmo, es el estadio con mayor capacidad con cerca de 54.400 espectadores aproximadamente. These are formed in an 800 m long zone that roughly parallels the Sandspit fault. Minera S.A.A. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Early EP, intermineral IMP1, and IMP2 porphyries as well as a late porphyry LP of quartz monzonitic (Fig. The fact that advanced argillic alteration overprints potassic alteration, with partly destruction of hypogen mineralization associated with potassic and chlorite-sericite alteration, indicates strong telescoping. Esta página se editó por última vez el 26 may 2020 a las 01:26. The 2019–20 Sporting CP season was the club's 114th season in existence and 87th consecutive season in the top flight of Portuguese football. the ascent of CO2-bearing, contracted vapor-like fluids that subsequently mixed with cold meteoric water. Múltiples sistemas hidrotermales en el proyecto Antakori Cu-Au-Ag : Relaciones temporales y evidenci... Gold-bearing Faults of the Old Man Range, Central Otago. One of the stocks was dated at 7.9 ± 0.1 Ma (U/Pb in zircon; G. Zulliger, writ. Resúmenes proEXPLO 2019, 4 p. The porphyry Cu mineralization occurs in a distinctive sequence of quartz-bearing veinlets as well as in disseminated form in the altered rock between them. FANDOM. SUIZA UN PAÍS DE CUENTO - SCHAFFHAUSEN - Duration: 5:55. La siguiente es una lista de los estadios de fútbol de Suiza ordenados por capacidad de espectadores. Individual systems have life spans of ∼100,000 to several million years, whereas deposit clusters or alignments as well as entire belts may remain active for 10 m.y. Scribd will begin operating the SlideShare business on December 1, 2020 [3] George Mercer Dawson became a staff member in 1875, progressed to assistant director in 1883 and finally to director of the Geological Survey of Canada in 1895.

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