Bingham, Porphyry copper deposit - USGS

Albino, G.V., 1995, Porphyry copper deposits of the Great Basin Nevada, Utah, and adjacent California, in Pierce, F.W., and Bolm, J.G., eds, Porphyry copper deposits ...


Chuquicamata, Porphyry copper deposit

Names and other identifiers. GMRAP ID. 286. Tract name. Chile Eocene–Oligocene Chuquicamata (005pCu1010) Included sites. Chuqui Norte, Exotica, Radomiro Tomic (Pampa Norte) Site status. deposit.


Geochemical and mineralogical study of the Red Mountain porphyry copper …

The Red Mountain porphyry copper-molybdenum deposit (Cu-Mo deposit or PCD) is located in the northern part of the Patagonia Mountains, Santa Cruz County, Arizona. Extensive core drilling has delineated a large, deep-seated, structurally intact mineral system that extends from the present surface to depths of more than 1,765 meters. This system is hosted …


Hydrothermal fluid evolution in the Escondida porphyry copper deposit ...

Porphyry-type ore deposits are the world's most important economic sources of Cu, Mo and Au and host a variety of other metals (e.g. Sillitoe 2010).The origin of these deposits is related to the circulation of high-temperature, metal-bearing hydrothermal fluids that are exsolved from H 2 O-rich acidic to intermediate magma bodies emplaced at shallow depths …


Geology of Porphyry Copper Deposits - Mineral …

porphyry deposits and iocg's are the world's primary source of copper and they account for more than 60% of the copper production globally but in addition to copper they also supply of the world's molybdenum production, 10 to 15% of global uranium production and a significant proportion of the world's gold production in short they make up a …


Porphyry Copper Deposits | Geology for Investors

Porphyry copper deposits are typically very-low grade with between 0.4 and 1% copper. The main mineral is chalcopyrite, which is finely disseminated through the host porphyritic rocks. The only reason these ore …


The copper-molybdenum mineralization is hosted in the monzogranite porphyry and granodiorite porphyry that intruded early Devonian intermediate-mafic volcanic and …


Porphyry copper deposits of the world: Database and grade and …

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 necessary because of new information about substantial increases in resources in some deposits and because we revised locations of some deposits so that they are …


Supergiant porphyry copper deposits are failed large eruptions

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 (>0.001 km 3 year −1 ...


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

The large to giant porphyry Cu deposits (Cu endowment >0.32 Mt Cu (refs 92,182,183); blue circles) are preferentially located in the thick crust (>40 km), like the Andes.Orange circles and the ...


porphyry copper deposit | mineralogy | Britannica

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 by weight; although …


Exploration of Porphyry Copper Deposits

The key to porphyry exploration is the alteration of the surrounding rocks that occurred during the intrusion and mineralization. The so-called prophylactic folic and potassic alterations I spoke about. Identifying the …


Porphyry-type copper deposits and potassium-argon ages of …

Porphyry-type copper deposits and potassium-argon ages of plutonic rocks of the Orville Coast and eastern Ellsworth Land, Antarctica


Porphyry Deposits: The World's Largest Source of …

These deposits provide over 60% of the world's copper and include other important metals such as molybdenum, gold and silver. Porphyry copper deposits are known for their low grades and very high tonnage. A …


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 km 3 of the upper crust and result in ...


Failed eruptions play a role in the creation of porphyry copper deposits

Porphyry copper deposits are largely produced by mechanisms similar to those causing large volcanic eruptions, new research by the University of Geneva has found.In a paper published in the ...


Why the Global Economy Deems Copper Porphyry as One of the …

Palm Beach, FL – May 4, 2022 – FinancialNewsMedia.com News Commentary – Porphyry copper deposits are the world's largest source of copper and is also is one of the world's most valuable deposit types. The term "porphyry" comes from the word "porphyritic", a textural term used by geologists to describe the mineral pattern within the rocks that commonly …


What is a Porphyry Copper Deposit? - Arizona …

Porphyry copper deposits are very large mineralized systems that are typically formed by relatively small intrusions (stocks), which are several thousand feet in diameter. These small intrusions are the solidified remains of a magma chamber from which the …


Supergiant porphyry copper deposits are failed large eruptions

The black dots are porphyry copper deposits for which data are available for Cu endowments and duration of magmatic activity13,17 (Supplementary Data 1). Ay Antapaccay, Ch Chaucha, Chu Chuquicamata, Cc Coroccohuayco, Es Escondida, EA El Abra, ES El Salvador, ET El Teniente, Ju Junin, LP Los Pelambres, Qv Quellaveco, RB Rio Blanco, Tk Tampakan. ...


PORPHYRY DEPOSITS - Earth Sci

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. Geologically, the deposits occur close to or in granitic intrusive rocks that are porphyritic in texture.


ArcPacific Reports that GoldSpot Identifies 24 Targets and …

Confirmed copper porphyry occurrences with open-ended upside potential on the LMSL Project. Regionally located along mineralized corridor with ideal geology to host copper deposits. 24 areas with multi-factor indicators showing existing or potential to host mineralization. Clear work plan and recommendations laid out for exploring target areas.


Failed eruptions play a role in the creation of porphyry copper deposits

Porphyry copper deposits are largely produced by mechanisms similar to those causing large volcanic eruptions, new research by the University of Geneva has found. In a paper published in the journal Communications Earth & Environment, the scientists behind the discovery say that at a time when copper resources are dwindling, their finding opens ...


Hannan Identifies Significant Copper-Gold Porphyry-Epithermal ...

VANCOUVER, BC / ACCESSWIRE / May 12, 2022 / Hannan Metals Limited ("Hannan" or the "Company") (TSX.V:HAN) (OTCPK:HANNF) is pleased to provide an update on exploration programs at the Belen project area at the -owned Valiente copper-gold porphyry project in central Peru (Figures 1 and 2). The Valiente Project, located 19 km east …


Porphyry Copper Deposit Model - USGS

Chapter B of Mineral Deposit Models for Resource Assessment 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 …


Porphyry copper deposits - SlideShare

Porphyry copper deposits Epithermal deposits originate in or nearby porphyritic intrusives which were saturated by water as they intruded in shallow areas of the crust (less than 6 km depth(. The developing …


Porphyry Copper Deposits | Geology for Investors

Porphyry copper deposits are typically very-low grade with between 0.4 and 1% copper. The main mineral is chalcopyrite, which is finely disseminated through the host porphyritic rocks. The only reason these ore bodies are economic is because porphyries are huge, with hundreds of millions of tonnes available in a fairly low-cost mining setting.


Basics Of Copper Porphyry Deposits For Investors

The ore in copper porphyry deposits is usually located between the potassic and phyllic alternations. There is a pyrite halo surrounding the ore. Chlorite, calcide, epidote, and adularia are ...


Porphyry Deposits: General characteristics and modeling

Porphyry Copper-Gold Deposits . Porphyry Cu-Mo Deposits . Tectonic Setting Porphyry copper deposits are typically formed in a continental arc and island arc settings along the Pacific Ring of Fire – the west coast of North and South America to the Eastern portions of Asia.


(PDF) The formation of porphyry copper deposits

Introduction About 75% of world copper, 50% of molybdenum, and 20% of gold are produced from porphyry copper deposits (Sillitoe, 2010) with an average ore grade of 0.45–1.5% Cu, 0.007–0.04% Mo ...


Preliminary Model of Porphyry Copper Deposits - USGS

A porphyry copper deposit is defined as follows: 1. One wherein copper-bearing sulfides are localized in a network of fracture-controlled stockwork veinlets and as dis- seminated grains in the adjacent altered rock matrix; 2.


The porphyry copper deposit at El Salvador, Chile

Abstract. The formation of the porphyry copper deposit at El Salvador culminated volcanic activity in the Indio Muerto district. Host rocks for the ore are Cretaceous andesitic flows and sedimentary rocks overlain unconformably by lower Tertiary volcanics. Early rhyolite domes, formed about 50 m.y. ago and roughly contemporaneous with ...


How to make porphyry copper deposits - ScienceDirect

Like most ore deposits, porphyry copper deposits (PCDs) are rare, but they exhibit spatiotemporal patterns of distribution and geochemical signatures that may hint at their origins. They represent shallow level intrusives (2–5 km) ( Sillitoe, 2010 ), not too shallow that they erupt and not too deep that they do not degas ( Fig. 1 ).


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

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 hydrothermally altered wall rocks.


Porphyry Copper Systems* - University of Utah

Porphyry Copper Systems* RICHARD H. SILLITOE† 27 West Hill Park, Highgate Village, London N6 6ND, England 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-


Gold in porphyry copper deposits: its abundance and fate

Porphyry 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 ...