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porphyry copper deposit

How to make porphyry copper deposits - ScienceDirect

2020年1月1日  This article explores the geologic processes that control the formation of porphyry copper deposits (PCDs), shallow level magmatic intrusions associated with subduction zones.

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Crustal magmatic controls on the formation of porphyry copper

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 important as major

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Porphyry copper deposit Ore genesis, Hydrothermal, Magmatic

Learn about porphyry copper deposit, a large body of rock with copper minerals disseminated in the fractured periphery of intrusive igneous bodies. Find out where and how these deposits are

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Supergiant porphyry copper deposits are failed large eruptions

2022年5月6日  Mass balance calculations suggest that supergiant porphyry copper deposits (>10 million tonnes copper) require magma volumes (up to >2500 km 3) and magma injection rates

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The formation of porphyry copper deposits Acta Geochimica

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 young

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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 crust.

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A new model for the optimal structural context for giant porphyry ...

Porphyry-type deposits are the main global source of copper and molybdenum. An improved understanding of the most favorable structural settings for the emplacement of these deposits

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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

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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 mineralized with copper,

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

2005年7月18日  Mineral deposit models are important in exploration planning and quantitative resource assessments for two reasons: (1) ... It also presents new grade and tonnage models for porphyry copper deposits and for three subtypes of porphyry copper deposits and a map showing the location of all deposits.

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A new model for the optimal structural context for giant porphyry ...

We conclude that the most favorable conditions for the emplacement of a porphyry copper deposit are met when structural control is provided by deep-seated faults severely misoriented for activation . They could correspond to restraining (not releasing) bends in segments of major strike-slip faults.

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Porphyry Deposits: The World’s Largest Source of Copper

2013年7月23日  Deposit Characteristics. Porphyry copper deposits are generally composed of a “plug-like” igneous intrusion – a large magma body that is emplaced beneath a volcanic system. On average these deposits can have a vertical and horizontal extent of 1-2 km and can range from tens of millions to more than one billion tons in size.

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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 rocks that cover the temporal window prior to and during porphyry Cu deposit formation may provide critical insights into magmatic processes that are key in generating these systems. This study

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CHAPTER 8 PORPHYRY DEPOSITS - Springer

Large tonnage and low grade are characteristic features of porphyry copper deposits. According to Lowell (1974), a deposit should have at least 20 million tonnes of ore containing a minimum average grade of 0.1 % Cu to qualify as a porphyry copper deposit. Reserve and production data compiled by Gilmour (1982) show that all

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

Mineral deposit models are important in exploration planning and quantitative resource assessments for two reasons: (1) grades and tonnages among deposit types are significantly different, and (2) many types occur in different geologic settings that can be identified from geologic maps. Mineral deposit models are the keystone in combining the diverse geoscience

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A rapid change in magma plumbing taps porphyry copper deposit

2022年10月14日  Porphyry-type deposits are a vital source of green technology metals such as copper and molybdenum. They typically form in subduction-related settings from large, long-lived magmatic systems. The ...

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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.

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Discovery about how porphyry-type copper deposits form could

2022年10月17日  More information: Lawrence C. Carter et al, A rapid change in magma plumbing taps porphyry copper deposit-forming magmas, Scientific Reports (2022). DOI: 10.1038/s41598-022-20158-y.

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Porphyry Copper Deposit Formation: Identifying Garnet and

2023年7月23日  1 Introduction. Empirical evidence for high oxidation state of porphyry-copper-deposit (PCD) generative arc magmas has been noted and discussed for decades (Burnham Ohmoto, 1980; Hutchinson Dilles, 2019; Park et al., 2021).These magmas typically record oxygen fugacity (fO 2) values equal or greater than the Ni–NiO fO 2 buffer (Sun et al., 2015).

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Geology, geochronology, and exploration of the Jiama giant porphyry

2023年4月1日  Based on a case study of the Jiama deposit, Lin B et al. (2019) established a multi-center complex mineralization model for collision-related porphyry copper systems, summarized the basic geological elements and primary orebody types of collision-related porphyry copper systems, and identified differences between the model they established and

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

2022年10月1日  The porphyry copper belt in the Geza island arc in southwestern China is the only Indosinian porphyry copper metallogenic belt that has been discovered and evaluated so far. The Pulang porphyry copper deposit (also referred to as the Pulang deposit) in this area has proven copper reserves of 5.11×10 6 t.

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Mineralogy and mineral geochemistry of the Tuwu porphyry Cu deposit

2020年1月2日  The Tuwu deposit is one of the largest porphyry copper deposits in Eastern Tianshan, NW China. The widespread hydrothermal alteration is associated with porphyries and their wall-rocks in the porphyry deposit can be divided into potassic, chlorite–sericite, phyllic, and propylitic zones. In this study, we conducted a detailed study on the mineralogy of

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Imaging the subsurface architecture in porphyry copper ...

2023年4月26日  Accordingly, at Cerro Colorado, the largest porphyry copper deposit in our study area, the occurrence of highly fragmented structures, including breccias, veins and stockworks filled with sulfides ...

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

2015年2月27日  a, The giant Grasberg porphyry copper deposit (PCD) in Irian Jaya, Indonesia, showing the >1 km scale of PCDs.Craggy limestone surrounding the mineralized intrusive and volcanic rocks host the ...

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Porphyry Copper Deposit Model - USGS Publications Warehouse

Q. Theory of Ore Deposit Formation. R. Porphyry Copper Exploration and Resource Assessment Guides. S. Geoenvironmental Features. T. Knowledge Gaps and Future Research Directions. U. Broader Implications and Societal Relevance of Porphyry Copper Systems. References Cited. Appendix 1. Grade and tonnage models. Appendix 2.

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Everything You Need to Know About Copper Porphyries

2015年3月11日  What is a Porphyry? 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 molbdenum,

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(PDF) Porphyry deposits - ResearchGate

2007年1月31日  tion from a recognized porphyry deposit did not begin until. 1955, from the Copper Mountain deposit at Mines Gaspé, ... porphyry copper deposits, such as Bingham and Bajo de la.

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The formation of porphyry copper deposits - ResearchGate

2016年11月5日  porphyry Cu deposit, with a thickness of up to * 65 km and a total Cu reserve of over 490 million tons. ... Porphyry copper systems supply about 75% of the world's copper.

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