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Porphyry copper deposit | Wiki | Everipedia

Porphyry copper deposit's wiki: 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 name.

(PDF) The formation of porphyry copper deposits

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 subduction zones.

Preliminary Model of Porphyry Copper Deposits - USGS

to many porphyry copper deposits (for example, Bingham, Utah), as well as crosscutting porphyry-style mineralization (for example, Valea Morii, Romania). Primary Commodities Copper is the primary commodity of economic interest in most porphyry copper deposits, although some deposits with low

King Copper | AZGS

Copper remains Arizona's most abundant and valuable metallic mineral product. In 2017, Arizona provided 68% of domestic copper production in the U.S. Arizona has two major types of copper deposits: Porphyry Copper in southern and central Arizona; and, the Volcanogenic Massive Sulfide Copper of the United Verde Mine in Jerome of central Arizona.

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-

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 (geology) - Wikipedia

Most of the world's copper is extracted from a type of mineral deposit called a "porphyry copper". If you've seen a picture of a great big open-pit mining operation odds are that it was a porphyry copper deposit. Some of the biggest man-made holes in the ground are porphyry copper mines ...

porphyry deposit | Encyclopedia.com

porphyry deposit 1. Porphyry copper occurs as large copper deposits centred around stocks of intermediate to acid, porphyritic, igneous rocks. Most occur in Mesozoic and Tertiary orogenic belts.They show concentric zones of minerals; for example at Bingham, Utah, there is an inner zone of Cu/Mo and an outer zone of Pb/Zn/Ag.The deposits are also characterized by extensive alteration halos.

Panguna, Porphyry copper deposit - USGS

Eastoe, C.J., 1978, A fluid inclusions study at the Panguna porphyry copper deposit, Bougainville, Papua New Guinea: Economic Geology, v. 73, p. 721 748.

Types of Copper Deposits in the World | Investing News Network

Here's a brief overview of five things that are important to think about when finding the value of a copper deposit. 1. Types of copper deposits. Porphyry copper deposits are low grade, but are ...

What is a Porphyry Copper Deposit? - AGS Home

What is a Porphyry Copper Deposit? by David F. Briggs Over the last several years, many of you have probably heard the term "porphyry copper" and wondered what everyone is talking about. Porphyry copper deposits are very large mineralized systems that are typically formed by relatively small intrusions (stocks), which are several thousand

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.

Porphyry copper assessment of Central America and the ...

Mineral resource assessments provide a synthesis of available information about distributions of mineral deposits in the Earth's crust. The U.S. Geological Survey prepared a probabilistic mineral resource assessment of undiscovered resources in porphyry copper deposits in Central America and the Caribbean Basin in collaboration with geoscientists from academia and the minerals industry.

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

Porphyry Copper: The World's Most Valuable Deposits originally posted on copperinvestingnews.com The views and opinions expressed herein are the views and opinions of the author and do not ...

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?

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 name. In later stages, circulating meteoric fluids may interact with the magmatic ...

What Investors Need to Know About Porphyry Copper Deposits ...

Porphyry deposits are one of the most important sources of copper and molybdenum, and are also major sources of silver, gold, and tin.In addition, porphyry deposits may host valuable by-products ...

Porphyry Deposits 101 – Doubleview Capital Corp.

Porphyry copper-gold deposits form in a variety of volcanic environments, most commonly in continental margins and intra-oceanic arcs. These are large scale magmatic-hydrothermal systems associated with a series of porphyritic intrusions, which result in extensive alteration footprints that we map and model to target high grade copper-gold mineralization.

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 name. In later stages, circulating meteoric fluids may interact with the magmatic ...

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 …

Everything You Need to Know About Copper Porphyries ...

Mar 11, 2015· 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, and 20% of gold comes from this deposit type. Porphyries are most commonly found along ...

Porphyry Copper Deposits of the American Cordillera

A tabulation of grade and tonnage of porphyry copper ores of the region has been published by Gilmour (1982) and sum­ marized by Titley and Anthony (1989) and Titley (1994). Re­ serves in 1989 have been listed by Beard (1989). Production figures summarized for 45 porphyry copper deposits in the

Exploration of Porphyry Copper Deposits

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 ring of fire around the subducting pacific plate another fertile subduction zone occurs in Balkans, Turkey, Iran and Pakistan.

Porphyry (geology) - Wikipedia

The term porphyry is also used for a mineral deposit called a "copper porphyry". The different stages of cooling that create porphyritic textures in intrusive and hypabyssal porphyritic rocks also lead to a separation of dissolved metals into distinct zones.. This process, which occurs primarily when fluids are driven off the cooling magma, is one of the main reasons for the existence in the ...

Porphyry copper deposit | mineralogy | Britannica.com

Porphyry copper deposit: 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

Porphyry copper deposit density - pubs.er.usgs.gov

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.

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

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.

Geology of Porphyry Copper Deposits

A different but closely related group of deposits to Porphyry Copper Deposits are the skarn deposits. Skarns are formed when hot magma intrudes the limestone the fluids from the intrusive alter the limestone to form an exoskarn. The intrusives also simulates the limestone altering its composition and forming and endo skarns.

Triggers for the formation of porphyry ore deposits in ...

Oct 13, 2013· 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 subduction zones. However, generation of ...

Porphyry Copper Deposit Model - USGS

Sep 02, 2010· 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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