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porphyry copper deposit

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

2021年11月16日  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

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Porphyry copper deposit Ore genesis,

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

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How to make porphyry copper deposits - ScienceDirect

2020年1月1日  Porphyry copper deposits (PCDs) represent shallow level intrusions (2–5 km) in the crust. Mineralization of Cu ores tend to occur at the tops of porphyry systems

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Supergiant porphyry copper deposits are failed large eruptions

2022年5月6日  Porphyry copper deposits, the principal source of copper and molybdenum, form at convergent margins. Copper is precipitated from fluids associated with cooling

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Clues to hidden copper deposits Nature Geoscience

2016年2月1日  Porphyry copper ore deposits mostly form beneath volcanoes, where magmas derived from a mid- to upper-crustal magma reservoir intrude into the shallower

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The formation of porphyry copper deposits Acta

2016年11月5日  This article explores the factors that control the formation of porphyry copper deposits along convergent margins, such as high oxygen fugacity, subduction of

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CHAPTER 8 PORPHYRY DEPOSITS - Springer

2017年8月29日  Learn about the characteristics, formation, and occurrence of porphyry copper deposits, which are large, low-grade ore bodies associated with igneous

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Porphyry Deposits SpringerLink

The most well known among the porphyry-type deposits are the porphyry copper deposits. Originally, the term porphyry copper was applied to stockwork copper mineralization in

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From long-lived batholith construction to giant porphyry copper deposit ...

2021年1月28日  This study documents the magmatic evolution of the Palaeocene–Eocene Yarabamba Batholith, Southern Peru, that was incrementally assembled between ~ 67

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A rapid change in magma plumbing taps porphyry copper deposit

2022年10月14日  The transition to new and green technologies is increasing the need for metals 1, 2 such as copper for which demand is forecast to increase by 140–350% from 2010 to 2050 3, 4. Porphyry-type ...

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CHAPTER 8 PORPHYRY DEPOSITS - Springer

2017年8月29日  Porphyry copper deposits contain approximately one-half of the world's copper reserves and currently account for more than 50% of the world's annual copper production. They are the best studied of all porphyry-type deposits and their salient features have been discussed in a number of review articles (e.g., Lowell Guilbert

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Porphyry Deposits » Geology Science

2023年4月23日  Mineralization: Porphyry deposits are typically mineralized with copper, gold, molybdenum, and silver.The minerals are typically found as sulfides and other minerals in the form of veins and disseminations.

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How to make porphyry copper deposits - ScienceDirect

2020年1月1日  Much of the world's economic copper resources are hosted in porphyry copper deposits (PCDs), shallow level magmatic intrusions associated mostly with thick (> 45 km) magmatic arcs, such as mature island arcs and continental arcs.However, a well-known, but unresolved paradox, is that arc magmas traversing thick crust, particularly in

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Porphyry Copper Systems1 Economic Geology

2010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, carbonate-replacement, and sediment-hosted Au deposits in increasingly peripheral locations; and superjacent high- and intermediate-sulfidation

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Generation of porphyry copper deposits by gas–brine

2015年2月9日  Porphyry copper deposits, that is, copper ore associated with hydrothermal fluids rising from a magma chamber, supply 75% of the world’s copper. They are typically associated with intrusions of ...

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Porphyry Copper Deposit Density Economic Geology

2005年5月1日  Porphyry copper deposit density is inversely related to the exposed area of permissive rock. The linear regression line and confidence limits constructed with the 19 control areas can be used to estimate the number of undiscovered deposits, given the size of a permissive area. In an example of the use of the equations, we estimate a 90 percent ...

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Discovery about how porphyry-type copper deposits form

2022年10月17日  The study describes a new 4D model for the formation of porphyry-type copper deposits which challenges the current paradigm of a progressive, multi-million year, arc-scale ramp up in the ...

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Imaging the subsurface architecture in porphyry copper deposits

2023年4月26日  For porphyry copper deposits, the world’s primary source of Cu, Mo, and Re, identifying the dynamic processes that control their emplacement in the upper crust can guide future exploration ...

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(PDF) The formation of porphyry copper deposits

2016年11月5日  Copper is a moderately incompatible chalcophile element. Its behavior is strongly controlled by sulfides. The speciation of sulfur is controlled by oxygen fugacity. Therefore, porphyry Cu deposits ...

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Tempo of magma degassing and the genesis of porphyry copper deposits ...

2017年1月12日  Porphyry deposits are copper-rich orebodies formed by precipitation of metal sulphides from hydrothermal fluids released from magmatic intrusions that cooled at depth within the Earth’s crust.

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PORPHYRY DEPOSITS - Earth Sci

2017年6月26日  The term porphyry copper now includes engineering as well as geological considerations; It refers to large, relatively low grade, epigenetic, intrusion-related deposits that can be mined using mass

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Everything You Need to Know About Copper

2015年3月11日  Others have barely any gold at all but may have plenty of molybdenum. Large Size, Low Grade – Porphyries typically have 100 million to 5 billion tonnes of ore with a lower grade (0.2% to >1% copper). It is

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Copper and critical metals production from porphyry ores

2021年7月1日  With ~109,000 Mt of ore, Chile owns 31 porphyry copper deposits ranging in size from 110 Mt to 21,300 Mt and averaging 0.2–1.3% copper, many of which also contain molybdenum, gold and silver (Table A1). 15 of the 31 porphyry copper deposits in Chile are currently being exploited and 7 of them belong to the 20 largest copper mines in the world ...

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Porphyry copper deposit formation by sub-volcanic sulphur ... - Nature

2015年2月27日  Porphyry copper deposits (PCDs, Fig. 1) have a broadly cylindrical distribution of mineralization (0.5–1 wt% Cu (ref. 4)) at the kilometre scale and are surrounded by more extensive zones of ...

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Porphyry Deposits: The World’s Largest Source of Copper

2013年7月23日  Grasberg is the world’s largest gold mine and second-largest copper mine. It was originally discovered by geologists looking for the source of the rich alluvial gold deposits in the lowlands of Irian Jaya. Between 1990 and 2019, the Grasberg district produced 33 billion pounds of copper and 53 million ounces of gold.

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Porphyry Copper Deposit Model - USGS Publications

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 0.44 percent copper in 2008), PCDs have significant economic and societal impacts ...

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Geology and mineralization of the Pulang supergiant porphyry copper ...

2022年10月1日  The ore-forming fluids of most porphyry copper deposits are dominated by mixed water, such as those (δ 18 O values: −0.94‒ 11.83) of the Dexing copper deposit in Jiangxi, and those (δ 18 O values: 6.40‒10.28) of the

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Geology and origin of the Zhunuo porphyry copper deposit,

2020年4月16日  Zhunuo is a porphyry deposit in the western GPCB. It was discovered in 2004 by the No. 2 Geology Survey Team of Tibet, China. Zhunuo contains 2.3 Mt copper metals at an average grade of 0.57% (Sun et al. 2018).Previous studies have reported zircon U-Pb ages, geochemistry of igneous rocks and molybdenite Re-Os ages for the

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