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porphyry copper deposit

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

2021年11月16日  Porphyry Cu deposits are characterized by concentrations of Cu-Fe-sulfide minerals (mainly chalcopyrite, CuFeS 2 ), along with pyrite (FeS 2) and variable quantities of molybdenite (MoS 2 ), precipitated in quartz veins and as disseminations in

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Porphyry copper deposit Ore genesis,

Learn about the formation, characteristics, and distribution of porphyry copper deposits, which are large bodies of rock with low-grade copper

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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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Crustal magmatic controls on the formation of porphyry copper deposits ...

2021年7月6日  Porphyry deposits are large, low-grade metal ore bodies that are formed from hydrothermal fluids derived from an underlying magma reservoir. They are

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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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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

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

2021年1月28日  Porphyry Cu ore deposits are a rare product of arc magmatism that often form spatiotemporal clusters in magmatic arcs. The petrogenetic evolution of igneous

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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 (

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Discovery about how porphyry-type copper

2022年10月17日  A study led by University of Exeter reveals how porphyry-type copper deposits form due to a rapid change in the underlying magmatic plumbing system. The findings could help exploration geologists discover

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Exploration Guides for High-Grade Hypogene Porphyry Copper Deposits ...

2023年10月1日  Abstract. Hypogene porphyry Cu deposits, unaffected by supergene enrichment, are generally perceived as relatively low-grade orebodies, in keeping with a

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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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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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Generation of porphyry copper deposits by

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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Exploration Guides for High-Grade Hypogene Porphyry Copper Deposits ...

2023年10月1日  Hypogene porphyry Cu deposits, unaffected by supergene enrichment, are generally perceived as relatively low-grade orebodies, in keeping with a current average production grade of 0.53% Cu. Nonetheless, all or large parts of some deposits exceed 1% Cu, and smaller deposit components can be much higher in grade, locally >6% Cu.

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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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Everything You Need to Know About Copper Porphyries

2015年3月11日  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 the size of these deposits that allow for bulk mining and economies of scale. Long Mine Life – The size of porphyry systems usually mean that the life of the mine can be multi-decades long.

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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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Porphyry Deposits » Geology Science

2023年4月23日  General Characteristics of Porphyry Deposits: Large 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

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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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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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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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Oxidized sulfur-rich arc magmas formed porphyry Cu deposits

2021年4月13日  Introduction. Porphyry Cu systems presently contribute ~75% of the world’s Cu production and of the known deposits most formed in Phanerozoic arc-related settings 1, 2. The arc-related calc ...

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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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Geology and Genesis of Major Copper Deposits and Districts

2012年1月1日  Tectonic setting also plays a fundamental role in copper metallogeny. Contractional tectonomagmatic belts, created by flat-slab subduction or, less commonly, arc-continent collision and characterized by crustal thickening and high rates of uplift and exhumation, appear to host most large, high-grade hypogene porphyry copper deposits.

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Porphyry copper deposit formation by sub-volcanic sulphur

2015年2月9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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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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Porphyry copper deposits in China Request PDF

2019年1月13日  The Gangdese belt is a famous porphyry copper metallogenic belt in Tibet, China, where many post-collisional porphyry Cu-Mo deposits are developed, such as Qulong, Jiama, Chongjiang, Tinggong, and ...

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The Tongkuangyu Cu Deposit, Trans-North China Orogen: A

2020年1月1日  The Tongkuangyu copper deposit in the Zhongtiaoshan region, southern Trans-North China orogen, is hosted by a poorly constrained sequence of Paleoproterozoic volcano-sedimentary (quartz-sericite schist and biotite schist) and granitic rocks that have been metamorphosed to lower greenschist facies and variably deformed.

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Porphyry Copper Deposit Formation: Identifying Garnet and

2023年7月23日  How do porphyry copper deposits form in different tectonic settings? This study uses a novel method of modeling the curvature of rare earth element patterns to reveal the role of garnet and amphibole fractionation in the magma source and evolution. The results have implications for understanding the metallogeny and geodynamics of

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