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 …
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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 from around the world.
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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 slabs from the Slab2 model (Hayes et …
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Advances in Geological Models and Exploration Methods for Copper …
This paper focuses on the relationships between the geological model and exploration techniques for porphyry Cu ± Au deposits, with reference to the discovery record and exploration practices over the past fifteen years. The porphyry model is built on a long record of study dating back to the 1960s which has been gradually refined to encompass differences and complexities in …
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Gold endowments of porphyry deposits controlled by
Porphyry deposits are natural suppliers of most copper and significant gold to our society. Whereas the Cu-richest (Au-poor) porphyries are related to Andean-type subduction and typical calc ...
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The formation of porphyry copper deposits | Acta …
The distribution of porphyry Cu deposits along the Pacific margins may be plausibly explained by ages of subducting oceanic plates (Sun et al. 2012, 2013). High oxygen …
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Porphyry Deposits
The major products from porphyry copper deposits are copper and molybdenum or copper and gold. 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 mining techniques.
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Metallogenesis and major challenges of porphyry copper …
Porphyry copper±molybdenum±gold deposits (PCDs) are the most representative magmatic-hydrothermal metallogenic system above subduction zones with important economic value. Previous studies revealed that large PCDs are generally formed from initial arc magmas (from subduction-induced partial melting of the mantle wedge), which eventually ascend to the …
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Porphyry copper deposit formation in arcs: What are the odds?
This magmatic-hydrothermal fluid phase has the potential to form ore deposits (most commonly porphyry Cu ± Mo ± Au deposits) if its metal load is precipitated in economic concentrations, but there are many steps along the way that must be successfully negotiated …
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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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By-products of porphyry copper and molybdenum deposits
Porphyry Cu and porphyry Mo deposits are large to giant deposits ranging up to >20 and 1.6 Gt of ore, respectively, that supply about 60 and 95% of the world's copper and molybdenum, as well as significant amounts of gold and silver. These deposits form from hydrothermal systems that affect 10s to >100 km3 of the upper crust and result in enormous mass redistribution and …
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How to make porphyry copper deposits
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 in cupolas. …
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Geology, geochronology, and exploration of the Jiama giant porphyry …
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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Porphyry Copper Deposits | Historical Perspectives of …
Differences among porphyry copper deposits may in many cases reflect differences in timing and extent of interaction with meteoric water and the deposits' postmineral histories. There is probably more than one tectonic mechanism capable of generating porphyry copper magmas of variable compositions. The sulfur content and oxidation state of ...
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Multi-million-year magmatic and hydrothermal activity is key …
Understanding the primary controls on mineral deposit formation and size is essential for sourcing the metals required by our ever-growing economy. The tonnage of porphyry copper deposits ranges five orders of magnitude but the key mechanisms and processes that modulate the size of these deposits remain enigmatic. Here, we investigate …
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Copper sulfide deposition and remobilisation triggered by …
The Tongchang porphyry Cu deposit along with the Fujiawu and Zhushahong deposits are located in a Neoproterozoic orogen that sutured the Yangtze and Cathaysia blocks 34.The three deposits, unlike ...
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Tempo of magma degassing and the genesis of porphyry copper deposits
Porphyry Copper Deposits (PCDs) are classically regarded as large upper crustal volumes of hydrothermally altered, veined and mineralized rocks centred on small appendices of magmatic rocks ...
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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 major …
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Porphyry copper deposits of the world: database, map, and …
This publication contains a computer file of information on porphyry copper deposits from around the world. It also presents new grade and tonnage models for porphyry copper deposits and …
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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., 2010; Richards et al., 2017; …
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Super Porphyry Copper & Gold Deposits-A Global Perspective …
Magmatic-related porphyry copper and high-sulphidation epithermal copper-gold ore deposits are spatially and temporally clustered in arc segments that underwent crustal shortening during magmatic ...
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Porphyry Copper Deposit Model
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.
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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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Porphyry copper deposits of the world: Database, maps, …
It also presents new grade and tonnage models for three subtypes of porphyry copper deposits, maps showing locations and general ages of these deposits, and a preliminary analysis with a number of figures summarizing many of the properties of these porphyry-style deposits. These summaries can be considered a new, quantified, form of most parts ...
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From long-lived batholith construction to giant …
Porphyry Cu ore deposits are the products of large, long-lived, trans-crustal arc magma systems that release and focus metal-charged fluids during the intrusion of porphyritic stocks and dykes (Dilles 1987; Seedorf et al. …
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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. Other …
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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 subtypes …
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CHAPTER 8 PORPHYRY DEPOSITS
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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2.2 Porphyry-epithermal mineral system
Figure 2.2.1: Diagrammatic sketch of the porphyry-related mineral system illustrating the relative location of deposits types within the overall setting and the likely distribution of critical and other commodities within and around these deposit types.In the commodity lists, blue indicates critical commodities, underlined bold indicates major products, bold indicates commonly recovered by ...
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Porphyry copper deposits of the world: database, map, and …
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. The value of this information and any derived analyses depends critically on the consistent manner of data gathering. For this reason, we first discuss the rules used in ...
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