porphyry copper deposits

porphyry copper deposits

What is a Porphyry Copper Deposit?

2015-6-27 · Porphyry copper deposits are also important sources for other metals, including molybdenum, gold and silver. Minor amounts of rhenium, tellurium, arsenic, zinc and platinum group elements are also present in elevated concentrations within these systems and are recovered at some mining operations. ...

Porphyry copper deposits of the world - USGS

Porphyry copper deposits of the world. Information on porphyry copper deposits from around the world with grade and tonnage models, a general classification based on geologic setting, mineralogy, with data allowing locations of these deposits to be plotted using GIS.

Porphyry Copper Deposit Model - USGS

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

Porphyry copper deposit | mineralogy | Britannica

2018-11-20 · 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

Geology of Porphyry Copper Deposits

2015-3-22 · Porphyry copper deposits ppt. Here let’s understand the geology of porphyries and iron oxide copper gold deposits or IOCG as they are known. These are somewhat the giants of the ore deposits world. As a mining interested learner, the geology of porphyry copper deposits

PORPHYRY DEPOSITS - Earth Sci

2017-6-26 · Porphyry copper deposits comprise three broad types: plutonic, volcanic, and those we will call "classic". The general characteristics of each are illustrated in photographs linked near the bottom of this page.&. 1. Plutonic porphyry copper deposits

How to make porphyry copper deposits - ScienceDirect

2020-1-1 · 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. Possible regimes where Cu may be mobilized include hydrothermal circulation at mid-ocean ridge centers, dehydration or melting of the subducting slab, and late stage ...

(PDF) The formation of porphyry copper deposits

2016-11-5 · Porphyry ore deposits are the source of much of the copper, molybdenum, gold and silver used by humans. Porphyry ore typically forms in magmatic arcs above

Crustal magmatic controls on the formation of porphyry ...

2021-7-6 · The Cadia, Grasberg, Oyu Tolgoi, Kalmakyr, Pebble Copper and Bingham deposits in red symbols are the six largest Au-rich porphyry Cu deposits based on Au endowments.

Porphyry copper deposit | mineralogy | Britannica

2018-11-20 · 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

Porphyry Deposits: The World’s Largest Source of Copper ...

2014-5-28 · Porphyry copper deposits form along convergent plate margins or more specifically, ancient subduction zones. As the dense oceanic crust becomes consumed by the mantle it begins to melt. This melting or partial melting of the crust creates magma

Porphyry Copper Deposits of the World: Database and

Tonnage of porphyry copper deposits versus average copper grades (from figure 1). This report is an update of earlier publications about porphyry copper deposits (Singer, Berger, and Moring, 2002; Singer, D.A., Berger, V.I., and Moring, B.C., 2005). The update was

Exploration of Porphyry Copper Deposits

2015-6-22 · So how do we explore for Porphyry Copper Deposits which are completely covered by barren younger rocks? Well let’s back up a bit, we know that porphyries form under large subduction related volcanoes and that most of these are located under the

The porphyry copper deposit at El Salvador, Chile ...

Copper was mostly removed from the sericitic capping, but iron, molybdenum, and gold were relatively immobile during supergene leaching.Interpretation of the space-time patterns and relations of the mineralization, alteration, volcanism, and intrusion allows reconstruction of the depositional environments of the El Salvador porphyry copper deposit.

Gold in porphyry copper deposits: its abundance and fate ...

2002-10-1 · 1.. IntroductionPorphyry copper deposits contain up to 100 t of gold and are among the largest reservoirs of gold in the upper crust (Kerrich et al., 2000).They are commonly surrounded by deposits and country rock containing gold that is thought to have been derived from them (Jones, 1992).Gold can be removed from porphyry copper systems by vapors that separate at high

Grasberg, Porphyry copper deposit - USGS

Potter, D., 1996, What makes the Grasberg anomalous, implications for future exploration, in Porphyry related copper and gold deposits of the Asia Pacific region: Conference Proceedings, Australian Mineral Foundation, Glenside, South Australia, p. 10.1 10.13.

Geology and origin of the Zhunuo porphyry copper

2020-4-16 · The Zhunuo porphyry copper deposit in the Gangdese belt of southern Tibet contains 2.37 Mt at 0.57% Cu. In this deposit, Eocene rhyolite (51.6 ± 1.0 Ma) and quartz porphyry (49.1 ± 0.6 Ma) were intruded by monzogranite (14.7 ± 0.3 Ma) and monzogranite porphyry (14.5 ± 0.2 Ma) which commonly host mafic microgranular enclaves (14.9 ± 0.3 Ma). Late-mineralization diorite porphyry

Crustal magmatic controls on the formation of porphyry ...

Porphyry copper deposits, the principal natural source of Cu and Mo, form at convergent margins. Copper is precipitated from fluids associated with cooling magmas that have formed in the mantle ...

Explainer: Why are so many explorers chasing a porphyry ...

2020-3-1 · When it comes to porphyry deposits, size counts. These multigenerational monsters are responsible for ~60 per cent of the world’s copper, most of its molybdenum, and significant amounts of gold and silver. Their easy-mining large volumes make up for the low grades, typically between 0.3 per cent to 1 per cent copper

Porphyry copper deposit | mineralogy | Britannica

2018-11-20 · 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

Porphyry Deposits: The World’s Largest Source of Copper ...

2014-5-28 · Porphyry copper deposits form along convergent plate margins or more specifically, ancient subduction zones. As the dense oceanic crust becomes consumed by the mantle it begins to melt. This melting or partial melting of the crust creates magma

Porphyry Copper Deposits of the World: Database and

Tonnage of porphyry copper deposits versus average copper grades (from figure 1). This report is an update of earlier publications about porphyry copper deposits (Singer, Berger, and Moring, 2002; Singer, D.A., Berger, V.I., and Moring, B.C., 2005). The update was

Exploration of Porphyry Copper Deposits

2015-6-22 · So how do we explore for Porphyry Copper Deposits which are completely covered by barren younger rocks? Well let’s back up a bit, we know that porphyries form under large subduction related volcanoes and that most of these are located under the

Porphyry Copper Deposits in the American Southwest:

The visit to this group of deposits will allow the study of parts of porphyry copper deposits from altered and oxidized lithocaps downward into metallized systems where both sedimentary and crystalline rocks host the metals and alteration. Further, the location of these deposits and the routes traveled will afford a sightseer's view of parts of ...

The porphyry copper deposit at El Salvador, Chile ...

Copper was mostly removed from the sericitic capping, but iron, molybdenum, and gold were relatively immobile during supergene leaching.Interpretation of the space-time patterns and relations of the mineralization, alteration, volcanism, and intrusion allows reconstruction of the depositional environments of the El Salvador porphyry copper deposit.

Grasberg, Porphyry copper deposit - USGS

Potter, D., 1996, What makes the Grasberg anomalous, implications for future exploration, in Porphyry related copper and gold deposits of the Asia Pacific region: Conference Proceedings, Australian Mineral Foundation, Glenside, South Australia, p. 10.1 10.13.

Geology and origin of the Zhunuo porphyry copper

2020-4-16 · The Zhunuo porphyry copper deposit in the Gangdese belt of southern Tibet contains 2.37 Mt at 0.57% Cu. In this deposit, Eocene rhyolite (51.6 ± 1.0 Ma) and quartz porphyry (49.1 ± 0.6 Ma) were intruded by monzogranite (14.7 ± 0.3 Ma) and monzogranite porphyry (14.5 ± 0.2 Ma) which commonly host mafic microgranular enclaves (14.9 ± 0.3 Ma). Late-mineralization diorite porphyry

DISCOVERING WORLD CLASSGOLD AND GOLD-COPPER

2021-2-1 · copper porphyry deposits; made the first property examination of the Petaquilla Cu- Au porphyry prospect (now Cobre Panama mine) and co -managed its early exploration and drilling NEIL RICHARDSON P.Geo. President of Forensic Geoscience North Inc., a geological consultancy COO of VMS Ventures Inc. and North American Nickel from 2011 to 2015

Explainer: Why are so many explorers chasing a porphyry ...

2020-3-1 · When it comes to porphyry deposits, size counts. These multigenerational monsters are responsible for ~60 per cent of the world’s copper, most of its molybdenum, and significant amounts of gold and silver. Their easy-mining large volumes make up for the low grades, typically between 0.3 per cent to 1 per cent copper