اترك رسالة
(PDF) The formation of porphyry copper deposits
Porphyry deposits are usually related to oxidized, calcalkaline to alkalic magmas with intermediate to felsic composition, and Geology and origin of the Zhunuo porphyry copper deposit, Gangdese belt, southern Tibet Introduction The Gangdese Porphyry Copper Belt (GPCB) in Geology and origin of the Zhunuo porphyry copper
Crustal magmatic controls on the formation of porphyry
Porphyry deposits are large, lowgrade metal ore bodies that are formed from hydrothermal fluids derived from an underlying magma reservoir They are Porphyry Cu deposits are characterized by concentrations of CuFesulfide minerals (mainly chalcopyrite, CuFeS 2 ), along with pyrite (FeS 2) and variable Porphyry copper deposit formation in arcs: What are the odds?
Origin of postcollisional magmas and formation of
Porphyry copper deposits 1 Introduction Porphyry copper deposits (PCDs) are generally associated with oxidized and H 2 Orich magmas, which are the Porphyry copper deposit, large body of rock, typically a porphyry of granitic to dioritic composition, that has been fractured on a fine scale and through which chalcopyrite and Porphyry copper deposit Ore genesis, Hydrothermal,
Porphyry copper deposit formation by subvolcanic
Porphyry copper deposits—the primary source of the world’s copper—are a consequence of the degassing of intrusion complexes in magmatic arcs associated with ancient subduction zones 1, 2Porphyry copper deposits, the principal source of copper and molybdenum, form at convergent marginsSupergiant porphyry copper deposits are failed large eruptions
From longlived batholith construction to giant porphyry
In this study, we aim to better understand the magmatic processes that determine the formation of giant porphyry Cu ore deposits by tracking the longlived The theory of lithosphere plate tectonics, embodying the concepts of seafloor spreading, transform faulting, and underthrusting at continental margins and island arcs, is employed as a basis for an actualistic, though speculative, model for the origin and spacetime distribution of porphyry copper and porphyry molybdenum depositsPorphyry ore A Plate Tectonic Model for the Origin of Porphyry Copper Deposits
Failed eruptions are at the origin of copper deposits
Supergiant porphyry copper deposits are failed large eruptions Communications Earth & Environment,2022; 3 (1) DOI: 101038/s43247022004407 Cite This Page :Porphyry copper deposits provide 75% of the world’s copper According to the researchers, the link that they found is related to how vast quantities of mineralizing fluids are extracted andUnderstanding how porphyrytype copper deposits
Discovery about how porphyrytype copper deposits form could
There is therefore a growing need to better understand where and how porphyry copper deposits form and for new methods to find Failed eruptions are at the origin of copper deposits May 9, 2022The Origin of Porphyry Copper and Molybdenum In summation,therefore, porphyry copper and Deposits molybdenumdepositsare consideredto be confined In view of the closetemporaland spatialrelation to orogenic belts characterizedby calcalkaline ship betweenthe genesisof porphyryore deposits magrnatism,and resulting from plates of A plate tectonic model for the origin of porphyry copper deposits
Crustal magmatic controls on the formation of porphyry copper deposits
Porphyry deposits are large, lowgrade metal ore bodies that are formed from hydrothermal fluids derived from an underlying magma reservoir They are important as major sources of critical metals for industry and society, such as copper and gold However, the magmatic and redox processes required to form economicgrade porphyry deposits 摘要： The theory of lithosphere plate tectonics, embodying the concepts of seafloor spreading, transform faulting, and underthrusting at continental margins and island arcs, is employed as a basis for an actualistic, though speculative, model for the origin and spacetime distribution of porphyry copper and porphyry molybdenum depositsPorphyry A Plate Tectonic Model for the Origin of Porphyry Copper Deposits
斑岩铜矿床研究进展
A plate tectonic model for the origin of porphyry copper deposits[J] Economic Geology,1972, 67(2):184197 [30]Sillitoe R H Characteristics and controls of the largest porphyry coppergold and epithermal gold deposits in the circumPacific region[J]Australian Journal of Earth Sciences,1997, 44(3):373388The Zhunuo porphyry copper deposit in the Gangdese belt of southern Tibet contains 237 Mt at 057% Cu In this deposit, Eocene rhyolite (516 ± 10 Ma) and quartz porphyry (491 ± 06 Ma) wereGeology and Origin of the Zhunuo Porphyry Copper Deposit, Gangdese belt
A Plate Tectonic Model for the Origin of Porphyry Copper Deposits
The theory of lithosphere plate tectonics, embodying the concepts of seafloor spreading, transform faulting, and underthrusting at continental margins and island arcs, is employed as a basis for an actualistic, though speculative, model for the origin and spacetime distribution of porphyry copper and porphyry molybdenum depositsPorphyry ore Where this reversal has not occurred (eg, New Zealand and Japan), porphyry coppergold deposits are absent or scarce; hence, older porphyry coppergold deposits may be useful clues to tectonic history Enrichment of magmas in gold may have resulted from twostage meltingSubduction, arc reversal, and the origin of porphyry copper
A Tribute to Richard H SillitoeA Tribute to Richard H Sillitoe
Porphyry CopperMolybdenum and CopperConstantino Mpodozis, Gold Deposits at Los Pelambres, Central Chile Humberto Brockway, and Héctor Posso 79 5 Protracted MagmaticHydrothermal History ofThe Tongshankou Cu–Mo deposit, located in the westernmost Daye district of the Late Mesozoic Metallogenic Belt along the MiddleLower reaches of the Yangtze River, eastern China, consists mainly of porphyry and skarn ores hosted in the Tongshankou granodiorite and along the contact with the Lower Triassic marine Origin of the Tongshankou porphyry–skarn Cu–Mo deposit,
Porphyry Copper Deposit Model USGS Publications Warehouse
This report contains a revised descriptive model of porphyry copper deposits (PCDs), the world’s largest source (about 60 percent) and resource (about 65 percent) of copper and a major source of molybdenum, gold and silver Despite relatively low grades (average 044 percent copper in 2008), PCDs have significant economic and societal impactsLarge scale: Porphyry deposits are large in size, often covering several square kilometers; Age: Porphyry deposits typically form in a relatively short time period, typically 1 to 5 million years after the formation of the associated intrusive igneous rock; Mineralization: Porphyry deposits are typically mineralized with copper, gold, Porphyry Deposits » Geology Science
The Origin of Cu/Au Ratios in PorphyryType Ore Deposits
Microanalysis of major and trace elements in sulfide and silicate melt inclusions by laserablation inductively coupled plasma mass spectrometry indicates a direct link between a magmatic sulfide liquid and the composition of porphyrytype ore deposits Copper (Cu), gold (Au), and iron (Fe) are first concentrated in a sulfide melt duringThe theory of lithosphere plate tectonics, embodying the concepts of seafloor spreading, transform faulting, and underthrusting at continental margins and island arcs, is employed as a basis for an actualistic, though speculative, model for the origin and spacetime distribution of porphyry copper and porphyry molybdenum depositsPorphyry ore A Plate Tectonic Model for the Origin of Porphyry Copper Deposits
Volume 118 Issue 6 Economic Geology GeoScienceWorld
Read the current issue of Economic Geology On the cover: Geologic elements of the Delamerian orogen in South Australia, Victoria, and New South Wales, overlain on the total magnetic intensity (TMI) grid of eastern Australia The geology and ore deposits of this region are described in the paper by Hong et al in this issueDOI: 101016/JOREGEOREV201408009 Corpus ID: ; Chalcophile elemental compositions and origin of the Tuwu porphyry Cu deposit, NW China @article{Gao2015ChalcophileEC, title={Chalcophile elemental compositions and origin of the Tuwu porphyry Cu deposit, NW China}, author={JianFeng Gao and Chalcophile elemental compositions and origin of the Tuwu porphyry
Origin of the Newly Discovered Zhunuo Porphyry Cu‐Mo‐Au Deposit
The newly discovered Zhunuo porphyry Cu‐Mo‐Au deposit is located in the western part of the Gangdese porphyry copper belt in southern Tibet, SW China The granitoid plutons in the Zhunuo region are composed of quartz diorite porphyry, diorite porphyry, granodiorite porphyry, biotite monzogranite and quartz porphyry The quartz