2012年8月29日· Crystallization of chalcopyrite and Kmetasomatism has potential to build volumetric pressure Volumetric pressure has potential to rupture rock to form fractures and to expel fluids out wards Regular fracturing and fluid migration produce zoning of2012年10月29日· The paper presents a description of the geological structure of the Makmal deposit; the characteristics of skarns, greisens,Metasomatic Zoning of Copper Porphyry Deposits in
PDF | On Sep 1, 2020, V V Svistunov published The Patterns of the Ore–Metasomatic Zoning of the Svoboda District, the Malmyzh Au–Cu Porphyry Deposit | Find, read and2020年12月14日· The classical model of the ore–metasomatic zoning of porphyry deposits has been proposed by geologists during many studies worldwide In general, itThe Patterns of the Ore–Metasomatic Zoning of the Svoboda
2020年8月28日· Features of oremetasomatic zonation of ore area Freedom of Malmyzh goldcopper porphyry deposit Vestnik Moskvoskogo Universiteta Authors: Vasily Vladimirovich Svistunov Abstract and2015年12月1日· Representing the main source of copper in the world, porphyry copper deposits have been widely studied Different models have tried to explain the observedReverse Osmosis contributing to metal zoning in porphyry type
1992年11月1日· A unified description of supergene enrichment of a porphyry copper protore is presented based on the principles of metasomatic zoning Mathematically2019年8月5日· The source of these metasomatic agents is considered to be recycled crustal material, implications for mantle metasomatism and porphyry copper mineralization in collisional orogensA metasomatized lithospheric mantle control on the
mineralization and metasomatites zoning in porphyry copper deposits of goshgarchai ore magmatic system (lesser caucasus, azerbaijan) Earth sciences and subsoil use eng | русSemantic Scholar extracted view of "MINERALIZATION AND METASOMATITES ZONING IN PORPHYRY СOPPER DEPOSITS OF GOSHGARCHAI ORE MAGMATIC SYSTEMMINERALIZATION AND METASOMATITES ZONING IN PORPHYRY
Metasomatism Metasomatism (from the Greek μετά metá "change" and σῶμα sôma "body") is the chemical alteration of a rock by hydrothermal and other fluids [1] It is traditionally defined as metamorphism which involves a change in the chemical composition, excluding volatile components [2] It is the replacement of one rock by another1992年4月1日· Gold Distribution in Porphyry Copper Deposits of Kerman Region, Southeastern Iran B Shafiei J Shahabpour Geology 2008 Gold contents of the Kerman porphyry copper deposits are generally low, ranging from 0010 to 0190 g/t The copper ores exhibit Cu/Au atomic ratios much greater than 40000, and Au/Mo ratios belowApplication of metal zoning to gold exploration in porphyry copper
2013年2月28日· The overwhelming majority of porphyry MoAuCu deposits in the Urals are related to the lowK quartz diorite minor intrusions of the islandarc type, which were formed from Silurian MiddleLate Carboniferous In the South Urals, the Cu/Mo ratio of ore decreases eastward along with enrichment in Re At the same time, molybdenite is2006年9月1日· The SarCheshmeh porphyry copper deposit is associated with a Miocene dioritic to granodioritic pluton that intruded Eocene volcanosedimentary and related rocks Copper mineralization was accompanied mainly by phyllic, and to a lesser extent potassic, alteration These hydrothermal alteration episodes were studied in terms of mass transferMass Changes during Hydrothermal Alteration Semantic Scholar
2006年1月1日· Extensive zones of biotiterich alteration, generally barren and with a hornfelsic appearance, occur in many andesitehosted porphyry copper deposits, but few data are available elsewhere for mineralogical, pressure, temperature, or metasomatic exchange relationships in such systems2000年4月1日· Copper oxides represent an attractive exploration target because even lowgrade prospects have the potential to produce lowcost copper in an environmentally friendly fashion Derived from liypogene and/or supergene sulfides, copper oxides comprise a series of distinct assemblages that characterize a variable pH oxidizing geochemicalSupergene Oxidation of Copper Deposits: Zoning and
The ore–metasomatic zoning of the Svoboda locality, which is one of the centers of mineralization on the Malmyzh Au–Cu porphyry deposit, is reported The central part of the ore bodies is composed of quartz–sericite and biotite–feldspar metasomatic rocks that bear relatively rich Au–Cu mineralization The flank zones of ore bodies are mostly composed2010年1月1日· Abstract Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits centered on intrusions; skarn, carbonatereplacement, and sedimenthosted Au deposits in increasingly peripheral locations; and superjacent high and intermediatesulfidationPorphyry Copper Systems1 | Economic Geology | GeoScienceWorld
The porphyry center was encountered in the course of an exploration drilling campaign conducted from 1992 through 1997, comprising a series of subvertical surface core holes and subhorizontal underground core holes ranging in length from 1,000 to 1,955 m2020年8月28日· PDF | Present the oremetasomatic zonation of the Freedom area, one of the ore centers of the Malmyzh AuCu porphyry deposit The central part of| Find, read and cite all the research you need(PDF) Features of oremetasomatic zonation of ore area Freedom
2012年7月6日· 13—Zoning of Ore Deposits: Types and Causes* Here, epigenetic hydrothermal deposits include those commonly classified as vein, porphyry copper, contact metasomatic, and Mississippi Valley deposits; the syngenetic hydrothermal deposits are conformable, massive ores such as at Rammelsberg1992年11月1日· A unified description of supergene enrichment of a porphyry copper protore is presented based on the principles of metasomatic zoning Mathematically this formulation represents the supergene weathering process as a moving boundary problemA first principles approach to supergene enrichment of a porphyry
PDF | On Sep 1, 2020, V V Svistunov published The Patterns of the Ore–Metasomatic Zoning of the Svoboda District, the Malmyzh Au–Cu Porphyry Deposit | Find, read and cite all the researchKeywords: porphyry deposits, ore zoning, metasomatic zoning, copper, gold DOI: 103103/S50105 ies of metasomatic rocks The gold–copper mineralization of the SvobodaThe Patterns of the Ore–Metasomatic Zoning of the Svoboda
porphyry copper deposits Keywords: porphyry copper deposits, fluid inclusions, copper, and sulfur DOI: 103103/S5009X INTRODUCTION Recent years have been marked by a greater interest in porphyry copper deposits due to a stepwise increase (by more than 3 times) in copper prices in the early 2000s (Mudd et al, 2013) Copper2022年12月1日· Abstract The altered rocks of the KyzykChadr deposit are mostly composed of quartz and dioctahedral K‑micas of the muscovite–phengite series, which are dominant in almost in all zones of a metasomatic aureole The assemblages of albite with chlorite and epidote are typical only of the peripheral parts of this aureole characterizedThe Geological Structure and Metasomatic and Hidden
2011年1月1日· Clacic gold–copper bearing skarn in the Batu Hijau porphyry deposit is located in the western part of Sumbawa Island, Indonesia Skarn mineralizations were found at the deep level of the deposit2020年2月25日· With a downward significant increase of chlorite, the metasomatites grade into quartz–sericite–chlorite facies of secondary quartzites with copper content reaching 015%, thus demonstrating a vertical zoning The intermediate (middle) zone of metasomatites can be ascribed to the quartz–sericite–chlorite facies of secondaryRareEarth Elements in Magmatic and Metasomatic Rocks of
Article history: The origin of zonal mineralization in porphyry copper deposit is important for understanding the miner Received 9 July 2011 alization processes We propose a new, modified ‘‘orthomagmatic’’ genetic model for mineralization zon Received in revised form 1 May 2012 ing in hypogene porphyry copper deposits2010年7月6日· (1992) ZONATION OF METASOMATIC AUREOLES ASSOCIATED WITH PORPHYRYCOPPER DEPOSITS OF THE URALS International Geology Review: Vol 34, No 12, pp 12221231ZONATION OF METASOMATIC AUREOLES ASSOCIATED WITH PORPHYRYCOPPER
2001年1月1日· Request PDF | 40Ar/39Ar geochronology of magmatic and metasomatic events in the Sora porphyry CuMo ore cluster: (Kuznetsk Alatau) | 40Ar/39Ar dating (23 determinations) has been carried out forPresent the oremetasomatic zonation of the Freedom area, one of the ore centers of the Malmyzh AuCu porphyry deposit The central part of oremineralization zones composes of quartzsericite and biotiteKfeldspar metasomatites which carry relatively rich goldcopper Flank zones are composed mainly of phyllic and propylitesFeatures of oremetasomatic zonation of ore area Freedom of
2012年8月29日· The origin of mineral zoning in hypogene porphyry copper deposits has been related to a number of physical and chemical controls, such as: (1) temperature gradients, with nearmagmatic temperatures at the center of the stock, grading to relatively cool temperatures in the wall rocks (Park, 1955, Park, 1957, Nielsen, 1968); (2) chemicalКрупнейшие в Кыргызстане месторождения золотомеднопорфирового типа находятся в Киргизском хребте в Северном ТяньШане (рис1) На западе развиты меднопорфировые с золотом месторождения, формирование которыхMetasomatic Zoning of Copper Porphyry Deposits in Kyrgyzstan
2023年1月1日· The reserves of the Duobaoshan porphyry CuAuMoAg deposit (also referred to as the Duobaoshan porphyry Cu deposit) ranks first among the copper deposits in China and 33 rd among the porphyry copper deposits in the world It has proven resources of copper (Cu), molybdenum (Mo), gold (Au), and silver (Ag) of 228×10 6 t,2016年4月6日· In other porphyry systems, some elements lost from potassic zones (eg, Ca, Fe, Co) are redistributed outward, producing metasomatic propylitic alteration domains, primarily through the formationPropylitic alteration and metal mobility in porphyry systems: a
2019年8月5日· The source of these metasomatic agents is considered to be recycled crustal material, implications for mantle metasomatism and porphyry copper mineralization in collisional orogensThe root zones of four Laramide porphyry copper systems in Arizona recently have been characterized at a reconnaissance level: the Miami Inspiration system associated with the Schultze Granite, the SierritaEsperanza system associated with the Ruby Star Granodiorite, the Ray system associated with the Granite Mountain pluton, and the KelvinRiversideRoot Zones of Porphyry Systems: Extending the Porphyry Model
2020年10月1日· Prograde and retrograde metasomatic reactions in mineralised magnesiumsilicate skarn in the CuAu Ertsberg East Skarn System, Geological and Geochemical Zoning of the Grasberg Igneous Complex, IrianJaya, Indonesia J Geochem The Chating deposit is a porphyry copper deposit in the Middle Lower Yangtze RiverMajor geological structure features, ore and metasomatic composition, oremetasomatic and isotopegeochemical zoning are considered for KyzykChadr deposit within the namesake ore cluster of Ozhinsky ore district, AltaiSayany mineragenic province A set of geological and prospecting evidence (elements of the deposit geological and prospectingGeological structure, oremetasomatic and Semantic Scholar
2018年2月26日· The Chuxiong basin, located in southwest China, is well known as a mineralization area of redbed type copper deposits in China These deposits are characterized by mineral zoning, which is especiallyClacic goldcopper bearing skarn in the Batu Hijau porphyry deposit is located in the western part of Sumbawa Island, Indonesia Skarn mineralizations were found at the deep level of the deposit (450m to 1050mL) by drilling program 2003 No(PDF) The mineralogy of goldcopper skarn related porphyry at
1992年11月1日· A unified description of supergene enrichment of a porphyry copper protore is presented based on the principles of metasomatic zoning 30, and 40% of copper recovery, respectively Cyanide leaching applied in sequential extractions of porphyry copper tailings samples from the Piuquenes impoundment, La Andina, Chile,1977年1月1日· INTRODUCTION In porphyry copper deposits, hydrothermal alteration zones are usually broader than the mineralization, The theory of metasomatic zoning Mineral Deposita (Berl), 3 (1968), pp 222231 View in Scopus Google Scholar McMillan, 1971 WJ McMillan Valley CopperMajor element halos in granitic wall rocks of porphyry copper
Early quartz monzonite porphyry apophyses and Permian Rib Hill Sandstone above the top of the porphyry cylinder contain quartz, kaolinite, alunite, zunyite, pyrite, and minor sericite, minerals characteristic of advanced argillic alterationEarly quartz monzonite porphyry in the core of the hydrothermal system shows biotiteorthoclase alteration and contains2021年1月26日· The porphyry copper–related granitic rocks in the southeast China coastal belt, ranging from diorite to granite, are characterized by highK calcalkaline, shoshonitic, and calcalkaline compositions, which are similar to those of the subductionrelated porphyry copper systems in the North and South American Cordillera (Cooke etRecognition of a Middle–Late Jurassic arcrelated porphyry copper
The Copper Mountain and Porphyry Mountain plugs, apophyses of the pluton, intruded the metasedimentary rocks and superimposed further metamorphic and metasomatic effects on them Early mineralizaotion, like the prograde metamorphism, is widespread throughout the aureoles (although very weak in most areas)2010年3月22日· Porphyry copper systems are thought to be associated with hightemperature (300700 • C) hydrothermal fluids exsolved from intrusive rocks and later emplaced into the upper crust (egPorphyry Copper Systems | Request PDF ResearchGate
Download scientific diagram | Hydrothermal alteration zones associated with porphyry copper deposit (modified after Lowell & Guilbert 1970) (A) Schematic cross section of hydrothermal alterationThe silicate and sulfide zoning is generally centered on a granitic porphyry stockLead and sulfur isotope data, as well as the zoning, suggest that the ore fluid traveled outward from the porphyry, starting at high temperatures and relatively high K/H ratios in the orthoclase field, thereby forming the biotiteorthoclase alterationZonal relations of wallrock alteration and sulfide distribution
