Crustal magmatic controls on the formation of porphyry …

Porphyry deposits are large, low-grade metal ore bodies that are formed from hydrothermal fluids derived from an underlying magma reservoir. They are important as …

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Post-collisional porphyry copper deposits in Tibet: An …

Porphyry copper deposits (PCDs) presently supply 75 % of the world's Cu, 50 % of the Mo, and 20 % of the Au. Such deposits typically occur in magmatic arcs and are genetically associated with calc-alkaline arc magmas typically formed by oceanic subduction (Richards, 2003). However, studies over the last 20 years have shown that …

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Formation of giant copper deposits in Tibet driven by …

Porphyry copper deposits (PCDs) occur in accretionary and collisional orogens, yet it is unclear how continental collision controls their formation. Two fundamental issues are debated: Which mechanism triggers melting of collision-thickened lithosphere, and which sources supply metals and volatiles necessary for formation of collision …

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Porphyry copper deposit | Ore genesis, Hydrothermal, …

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 other copper minerals are disseminated.Porphyry copper deposits commonly contain hundreds of millions of metric tons of ore that averages a fraction of 1 percent copper …

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Porphyry copper deposit | Ore genesis, Hydrothermal, …

Learn about porphyry copper deposit, a large body of rock with copper minerals disseminated in the fractured periphery of intrusive igneous bodies. Find out …

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Everything You Need to Know About Copper …

Porphyry deposits are very large, polymetallic systems that typically contain copper along with other important metals. Much of today's mineral production depends on porphyries: 60% of copper, 95% of …

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Mapping hydrothermal alteration of the Pulang porphyry copper deposit

The Pulang porphyry copper deposit is located southeast of the Zhongdian arc, and Zhongdian arc is located in the southern section of the Yidun arc. Pulang deposit has proven copper reserves of 5.11 × 10 6 t (Li et al., 2022) (Fig. 1 c). The geological framework of the mining area is relatively simple.

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Slab segmentation, anomalous arc volcanism, and giant porphyry copper …

Download: Download high-res image (2MB) Download: Download full-size image Fig. 1. Map of Southeast Asia showing locations of (1) Holocene arc volcanoes (grey triangles), (2) anomalous Indonesian arc volcanoes (white triangles), (3) giant Pliocene–recent porphyry Cu deposits (white circles), and (4) locations of subducted …

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CHAPTER 8 PORPHYRY DEPOSITS

The largest known porphyry copper deposit is located at Chuquicamata (Chile) with total reserves (proved + probable + possible) of about 10 billion tonnes averaging 0.56% Cu. …

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The Ak-Sug Porphyry Copper–Gold–Molybdenum Deposit, …

Abstract Ore mineralization of the Ak-Sug Porphyry Copper–Gold–Molybdenum deposit formed during three stages: 1) porphyry-copper mineralization with simple sulfides in quartz–sericite and quartz–sericite–chlorite metasomatites, 2) subepithermal Au–Bi–Te–Pd-quartz mineralization in quartz–sericite …

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An Empirical Geophysical Model for Porphyry Copper Deposits …

Gold-rich porphyry copper deposits are emplaced in a variety of subduction-related settings, especially around the Pacific rim, and are underlain by both oceanic and cratonic crust in either ...

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Porphyry Copper Deposit Model | PDF

It describes porphyry copper deposits as large-scale hydrothermal systems centered on porphyritic intrusions. Key points include: - Porphyry copper deposits form in arc settings and are associated with porphyritic intrusions emplaced at depths between 1-4 km. - Deposits can extend laterally over 1-4 km and vertically over 1-2 km.

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Geology and mineralization of the Duobaoshan supergiant porphyry …

The reserves of the Duobaoshan porphyry Cu-Au-Mo-Ag 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 …

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Metallogenesis of Porphyry Copper Deposit Indicated by In …

The origin of the Dexing porphyry Cu deposit is hotly debated. Zircon and apatite are important accessory minerals that record key information of mineralization processes. SHRIMP zircon U-Pb analyses of granodiorite porphyries yield ages of 168.9 ± 1.2 Ma, 168.0 ± 1.0 Ma, and 172.8 ± 1.3 Ma, whereas zircons in the volcanic rocks of …

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Porphyry copper deposit formation in arcs: What are the odds?

This paper estimates the probability of forming a large porphyry Cu deposit in an arc magmatic system and its chances of being exposed and mined. It identifies the main steps along the path from magma genesis to hydrothermal mineral precipitation …

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Geology of the post-collisional porphyry copper–molybdenum deposit …

1.. IntroductionAlthough porphyry copper deposits are usually thought to form in island-arc and continental arc settings (Sillitoe, 1972, Mitchell, 1973, Cooke et al., 2005), they can also occur in post-collisional extensional settings (Hou et al., 2003a, Hou et al., 2004, Hou et al., 2007, Hou et al., 2009, Hou et al., 2009).The Gangdese Porphyry …

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Porphyry copper deposits of the world: Database, maps, and …

This publication contains a computer file of information on porphyry copper deposits around the world. It also presents new grade and tonnage models for three …

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(PDF) SILLITOE 2010

Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits centered on intrusions; skarn, carbonate-replacement, and sedimenthosted Au deposits in increasingly peripheral locations; and superjacent high-and intermediate-sulfidation epithermal deposits.

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Geology and geochronology of Naruo large porphyry-breccia Cu deposit …

Although there are many large and giant porphyry copper deposits in Duolong district (Table 2), Tiegelongnan is the largest porphyry-epithermal deposit and closely related to Naruo porphyry-breccias deposit. Tiegelongnan has reserves of over 10 Mt contained Cu metal, averaging 0.53%, over 37 t Au, ...

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Preliminary Model of Porphyry Copper Deposits

Porphyry copper deposits form in continental magmatic arcs along convergent plate-margin boundaries or in island-arc environments. The deposits are associated with subduction-related volcanic centers, although in some examples, they are thought to be associated with postcollisional volcanism. Permissive magmatic-arc environments may …

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Identifying tectonic settings of porphyry copper deposits …

Porphyry Cu (±Mo ± Au) deposits (PCDs), as the most important type of ore deposits, provide nearly three-quarters of the copper, half of the molybdenum, and one-fifth of the gold, as well as other metals, such as rhenium, silver, lead and zinc (Sillitoe, 2010).Most PCDs were discovered in the magmatic arc environments related to the …

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Arc magmatic evolution and porphyry copper deposit …

The Andes host the most important porphyry Cu–Mo–Au ore belts in the world (Mao et al., 2018; Sillitoe and Perelló, 2005).The deposits in these belts were formed mainly during the Cenozoic, although some smaller Jurassic–Cretaceous porphyry deposits have been discovered (Clark et al., 1990; Drobe et al., 2013; Maksaev et al., …

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The Sarcheshmeh porphyry copper deposit, Kerman, Iran: A …

The giant Sarcheshmeh deposit is located 65 km southwest of Kerman city, southeastern Iran (lat. 29°56′30″ N., long. 55°52′30″ E (Fig. 1).The deposit is known as a typical porphyry Cu deposit with respect to alteration types, mineralization style, ore grade and size, tectonic setting, and igneous rock features (Waterman and Hamilton, 1975, …

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(PDF) Porphyry deposits

porphyry copper deposits, such as Bingham and Bajo de la. Alumbrera, sulphide deposition was primarily due to cooling. of metal-rich, saline brines below 400ºC (Ulrich et al., 2001;

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The Anatomy of an Alkalic Porphyry Cu-Au System

Each deposit is centered on a multiphase cluster of quartz monzonite porphyry intrusions that drove discrete hydrothermal systems. Initial fluid evolution was similar in all the deposits, with three major alteration facies developed as largely concentric zones around the quartz monzonite porphyry complexes.

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Porphyry Copper Systems of the Boulder batholith, Montana

Cretaceous gold-silver-polymetallic veins overprinted by Paleocene porphyry copper-molybdenum stockwork deposits (complex system of structurally controlled or randomly oriented veins) and copper lodes (ore containing primarily metal that fills or is embedded in a fracture in a rock formation) in the south,

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Porphyry copper deposits of the world: database, map, and …

In this report we have added 84 new porphyry copper deposits and removed 12 deposits. In addition, some errors have been corrected and a number of deposits have had some information, such as grades, tonnages, locations, or ages revised. This publication contains a computer file of information on porphyry copper deposits …

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Porphyry copper deposits of the world: database, map, and …

The foundation of mineral deposit models is information about known deposits-the purpose of this publication is to make this kind of information available in digital form for porphyry copper deposits. This report is an update of an earlier publication about porphyry copper deposits.

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The Batu Hijau porphyry copper-gold deposit, Sumbawa Island, Indonesia

The Batu Hijau porphyry Cu Au deposit lies in southwest Sumbawa Island, Indonesia. It is a world-class porphyry Cu deposit in an island are setting, and is typical of this deposit type in most features, including igneous association, morphology, hydrothermal alteration and mineralisation style.

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The Chain of Processes Forming Porphyry Copper Deposits…

Entrainment of any suspended sulfide particles is favored by forceful ascent of magmas in the tectonic setting where porphyry copper deposits are found (Loucks, 2021), and the H 2 O-rich and oxidized composition of such fertile magmas promotes subsequent sulfide decomposition and transfer of sulfur and metals to ore-forming fluid …

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The Chain of Processes Forming Porphyry Copper …

This paper reviews the formation of porphyry copper deposits, which are giant geochemical anomalies in the Earth's crust with orders-of-magnitude differences …

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