porphyry copper deposits

(PDF) Distribution of gold in porphyry copper deposits

Analysis of 55 porphyry copper deposits demonstrates a continuum between porphyry copper-gold deposits emplaced at a median depth of 1 km, with a median size of 160 million metric tons of copper ...

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Porphyry copper deposits of the world: database, maps, and ...

The foundation of mineral deposit models is information about known deposits—the purpose of this publication is to make this kind of information available in digital form for a group of porphyry copper deposits. This publication contains a computer file of information on porphyry copper deposits around the …

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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.

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King Copper | AZGS

A third copper source includes copper of breccia pipes of the Breccia Pipe Province of northern Arizona. Porphyry Copper Deposits. Most of the copper mined in Arizona comes from porphyry copper deposits. These are copper ore deposits associated with intrusive igneous rocks similar to granite.

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Porphyry copper deposit | mineralogy | Britannica.com

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 …

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Porphyry copper deposits: Strike-slip faulting and ...

Porphyry copper deposits sometimes form during the solidification of stocks of relatively oxidized magma of intermediate composition. Most workers have assumed ore-forming systems have special chemical attributes, but none has been found that is useful to guide exploration efforts.

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Porphyry copper deposit - Infogalactic: the planetary ...

Porphyry copper deposits are copper orebodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the deposit itself. Predating or associated with those fluids are vertical dikes of porphyritic intrusive rocks from which this deposit type derives its …

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Porphyry Copper, Gold, and Molybdenum Deposits: Preface ...

Mutschler et al., 1981; Wallace, 1991. Because some porphyry Mo deposits contain significant W, the few papers that document Mo-W and W porphyry deposits are also provided in this subsection. Breccias associated with porphyry copper deposits have been a …

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Footprints of porphyry Cu deposits: Vectors to the ...

porphyry copper deposits, despite different tectonic settings, magma compositions, ages, and ore mineral suites produce a relatively consistent mineralogic and geochemical zonation. (Note that the minerals are not identical, and the magnitude of trace metal anomalies varies significantly).

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

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 a billion+ tons in size.

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Porphyry copper deposit - Wikipedia

Porphyry copper deposits are copper orebodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the deposit itself. Predating or associated with those fluids are vertical dikes of porphyritic intrusive rocks from which this deposit type derives its …

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3- Geophysics for Porphyry Copper Deposits- SW N. America ...

Jan 02, 2019· IP geophysics exploration over porphyry copper deposits. Presented by Mark Thoman (Freeport-McMoRan) at the 2018 Society of Exploration Geophysicists Conference, Porphyry Copper Workshop, held on ...

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Porphyry copper deposit : definition of Porphyry copper ...

Porphyry copper deposits are copper orebodies which are associated with porphyritic intrusive rocks and the fluids that accompany them during the transition and cooling from magma to rock. Circulating surface water or underground fluids may interact with the plutonic fluids.

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El Salvador, Porphyry copper deposit - USGS

Codelco, 2006, Corporación Nacional del Cobre de Chile (Codelco), Annual Reports 1983 2006.

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What is a Porphyry Copper Deposit? - arizonageologicalsoc.org

Although copper has been mined from a number of different types of mineral deposits, porphyry copper deposits are the most important source for copper, accounting for more than 60 percent of the annual world copper production and approximately 65 percent of the known total copper resource.

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porphyry copper | AZGS Document Repository

Copper oxides are also found in Arizona in other types of deposits including stratabound, replacements, and veins. Figures 2-4 show the distribution of these deposit types for metallic mineral districts with known production.

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Porphyry Copper: The World's Most Valuable Deposits ...

Porphyry deposits may also host valuable by-products, including platinum, palladium, and tungsten.Approximately 50-60 percent of the world's copper, and …

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Porphyry Copper Deposits - mingeoch.uni-jena.de

Porphyry Copper Deposits This text is based mostly on the Economic Geology Notes by Ron Morton and the review of porphyry-copper deposits by Sillitoe (2010). The latter publication is exhaustive and is available through the ThULB in Jena.

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Types of Copper Deposits in the World | Investing News Network

Copper mineralization occurs in many forms, and in a variety of geological settings.As such, there are various factors to consider when determining the value of different types of copper deposits.

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Exploration of Porphyry Copper Deposits

As with almost all ore deposit types porphyry targets need to be drilled eventually to quantitatively determine actual copper, gold and molybdenum values in the identified mineralization. I'll talk more in detail about drilling and the drill techniques in a later course.

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Geology of Porphyry Copper Deposits

When it comes to porphyry deposits there are a number of variations on a theme and the deposits can be copper only, they can be copper gold, copper molybdenum or molybdenum only but regardless of the metal mix the process of deposit formation is the same.

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Porphyry | Definition of Porphyry by Merriam-Webster

Porphyry definition is - a rock consisting of feldspar crystals embedded in a compact dark red or purple groundmass. a rock consisting of feldspar crystals embedded in a compact dark red or purple groundmass; an igneous rock of porphyritic texture…

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Everything You Need to Know About Copper Porphyries ...

Everything You Need to Know About Copper Porphyries. Presented by Entrée Gold. What is a Porphyry? Porphyry deposits are very large, polymetallic systems that typically contain copper along with other important metals.

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Porphyry Copper Flashcards | Quizlet

Can porphyry copper deposits be located within the host rock, country rock or both? Both If the ore is spread-out (at different grades) through the entire deposit is it then not fracture controlled?

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(PDF) The formation of porphyry copper deposits

PDF | 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 ...

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PORPHYRY DEPOSITS - Earth science

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 …

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porphyry copper deposit at El Salvador, Chile | Economic ...

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.

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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-

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