Porphyry copper deposit | Project Gutenberg Self ,

Porphyry copper deposit: | |Porphyry copper deposits| are |copper| |orebodies| that are formed from hydrothermal flu, World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive collection ever assembled...

Types of Copper Deposits in the World | Investing News Network

Most types of copper deposits also have secondary ores, however, and they can add a great deal of value to a deposit The Escondida mine is primarily a chalcopyrite porphyry deposit overlain by ....

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...

A Plate Tectonic Model for the Origin of Porphyry Copper ,

space-time distribution of porphyry copper and porphyry molybdenum deposits Porphyry ore deposits, occurring in the western Americas, southwest Pacific and Alpide orogenic belts, are thought to constitute a normal facet of calc-alkaline magma- tism Chemical and isotopic data cited are consistent with the generation of the com-...

ORE DEPOSITS 101 - Part 3 - Porphyries, Skarns & IOCG ,

Jul 07, 2017· ORE DEPOSITS 101 - Part 3 - Porphyries, Skarns & IOCG SprottEDU , Finding Something Unexpected in an Abandoned Copper Mine - Duration: 14:48...

Copper Porphyry Deposits Flashcards | Quizlet

Where is the main ore zone in a copper porphyry deposit? In a sheath zone around the central zone What non-economic mineral is found in a shell around the main ore body? Pyrite - contaminated with sulphide What are the main ores of a copper porphyry deposit?...

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? No , precipitation of porphyry ore on cooling...

Porphyry Copper Gold Ore - Under the Microscope | New ,

This is an ore from a zone of Copper Porphyry which was located in southeastern New Brunswick The overall grade of the ore was assayed at 35% copper and 600ppb AU or gold This deposit is actually a project which myself and another prospector have been looking at over the last year...

Giant Porphyry Deposits: Characteristics, Distribution ,

More than half of the 25 largest known porphyry copper deposits, defined in terms of contained copper metal, formed during three time periods: the Paleocene to Eocene, Eocene to Oligocene, and middle Miocene to Pliocene These giant deposits are clustered within three provinces, central Chile, northern Chile, and southwest Arizona-northern Mexico...

Porphyry-Epithermal Transition: Maricunga Belt, Northern ,

A spectrum of porphyry-style deposits exists Cerro Casale at Aldebar√°n shares many characteristics of por-phyry copper deposits worldwide, whereas Verde at Refugio is a true porphyry gold deposit Potassic alteration zones and A-veinlets are strongly developed at Cerro Casale, whereas they are absent at Verde Banded quartz...

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...

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? No , precipitation of porphyry ore on cooling...

Iron oxide copper gold ore deposits - Wikipedia

Iron oxide copper gold ore deposits (IOCG) are important and highly valuable concentrations of copper, gold and uranium ores hosted within iron oxide dominant gangue assemblages which share a common genetic origin These ore bodies range from around 10 million tonnes of contained ore, to 4,000 million tonnes or more, and have a grade of between 02% and 5% copper, with gold contents ranging ....

Porphyry Copper Deposits of the American Cordillera

ores with subaerial andesitic volcanic activity and the affinity of ores with felsic intrusive porphyry centers link porphyry copper deposits with specific geologic settings which have undergone the effects of plate convergence, most commonly along conti­ nental ,...

Porphyry copper deposit - Infogalactic: the planetary ,

Porphyry-type ore deposits for metals other than copper Copper is not the only metal that occurs in porphyry deposits There are also porphyry ore deposits mined primarily for molybdenum, many of which contain very little copper...

What is a Porphyry Copper Deposit?

bodies are very large, generally containing from 100 million to several billion tons of copper ore with a copper content of 02% to 20% The majority of porphyry copper deposits occur adjacent to subduction zones (ie Ring of Fire around the Pacific Ocean), which form along continental margins (ie Andes Mountains) and island...

Porphyry copper deposit - Wikipedia

If you take into account the probable cut off you can see how small the margins are porphyry deposits are very sensitive to metal pric These examples are some of the cadillacs of the ore deposit worlds but other lower grade porphyry deposits can become uneconomic with just a 20% drop in copper price...

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 ,...

What is a Porphyry Copper Deposit? by David F Briggs on ,

porphyry copper deposits were the first type of metallic mineral deposit to be exploited by large- scale, bulk tonnage, open pit mining methods Economies of scale and advances in technology have...

How to Locate Copper Deposits | Sciencing

Geologists employ many techniques to locate copper deposits, from testing the components of ore to studying land features to determine probable locations for a copper deposit The process is not as easy as it once was, in part because environmental regulations prevent exploratory digs deep in ,...

porphyry copper deposits - YouTube

Aug 29, 2016· Regional Characteristics of Porphyry Copper Deposits of the Abstract , Chairman of Goldcliff Resource Corporation reports that Goldcliff has made the first significant porphyry copper ore grade ....

Porphyry copper deposit - IPFS is the Distributed Web

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 copper deposit - Howling Pixel

Porphyry copper deposit 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 ....

Erdenet, Porphyry copper deposit - USGS

Comments: Grade and tonnage data from Singer and others (2008) Mineralization at depth between the known, but undeveloped Erdenet Central and Erdenet SE orebodies, along with drill results on the NW margins of the existing mine, demonstrate there is nearly continuous mineralization extending >10 km along a NW-SE trend...

Porphyry Copper Deposits of the American Cordillera

ores with subaerial andesitic volcanic activity and the affinity of ores with felsic intrusive porphyry centers link porphyry copper deposits with specific geologic settings which have undergone the effects of plate convergence, most commonly along conti­ nental ,...

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 zon However, generation of ....

Porphyry copper deposit - Infogalactic: the planetary ,

Porphyry-type ore deposits for metals other than copper Copper is not the only metal that occurs in porphyry deposits There are also porphyry ore deposits mined primarily for molybdenum, many of which contain very little copper...

Porphyry Copper Deposit Model - USGS

Sep 02, 2010· Summary of Porphyry Copper Deposit Model A Introduction B Deposit Type and Associated Commoditi C History of Porphyry Copper Deposits D Regional Environment E Physical Description of Deposits F Geophysical Characteristics G Hypogene Ore Characteristics H and K Hypogene and Supergene Gangue Characteristics I Hydrothermal ....

(PDF) The formation of porphyry copper deposits

The formation of porphyry copper deposits , Many researchers have studied the oxidation states of porphyry Cu ± Mo ± Au ore deposits and found that in a given region the parental magmas of ....

Grasberg, Porphyry copper deposit

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 101 1013...