Porphyry Copper Deposit

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 …

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 …

Preliminary Model of Porphyry Copper Deposits

uses a working definition of a porphyry copper deposit. 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. Alteration and ore mineralization at 1–4-km depth are genetically related to magma reservoirs emplaced into the shal-

(PDF) The formation of porphyry copper deposits

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 deposits...

Everything You Need to Know About Copper Porphyries ...

11.03.2015· In porphyry mineralization, there are many economic minerals that can be found: copper, gold, molybdenum, silver, lead, zinc, tin, and tungsten. There are also associated mineral deposits that can form that depend on the host rock and the distance from the heat source. These include skarn, epithermal, and breccia type deposits. Four Things to Know on Porphyries. Polymetallic nature – …

Porphyry (geology) - Wikipedia

Porphyry deposits are formed when a column of rising magma is cooled in two stages. In the first stage, the magma is cooled slowly deep in the crust, creating the large crystal grains with a diameter of 2 mm or more. In the second and final stage, the magma is cooled rapidly at relatively shallow depth or as it erupts from a volcano, creating small grains that are usually invisible to the unaided eye. The term porphyry is also used for a mineral deposit called a "copper porphyry". The different stages o…

Fluid inclusion systematics in porphyry copper deposits ...

01.08.2020· Case study: The Grasberg porphyry copper deposit With a metal content of over 32 Mt of Cu and 3 kt of Au, the Grasberg deposit (longitude 137.1144, latitude −4.0461) is a super-giant relative to many other well-known porphyry copper deposits (Kalinichev, 2017).

Porphyry Copper Deposits | Geology for Investors

15.02.2021· 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 …

Preliminary Model of Porphyry Copper Deposits

uses a working definition of a porphyry copper deposit. 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. Alteration and ore mineralization at 1–4-km depth are genetically related to magma reservoirs emplaced into the shal-

How to make porphyry copper deposits - ScienceDirect

01.01.2020· How to make porphyry copper deposits 1. Introduction. Copper (Cu) is one of many “mineral” resources needed to support the world's increasing needs for... 2. Hypotheses for the formation of porphyry copper deposits. Making a PCD clearly involves a sequence of …

(PDF) The formation of porphyry copper deposits

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 deposits...

Everything You Need to Know About Copper Porphyries ...

In porphyry mineralization, there are many economic minerals that can be found: copper, gold, molybdenum, silver, lead, zinc, tin, and tungsten. There are also associated mineral deposits that can form that depend on the host rock and the distance from the heat source. These include skarn, epithermal, and breccia type deposits. Four Things to Know on Porphyries. Polymetallic nature – …

Development of a Copper Porphyry deposit - YouTube

31.05.2015· Development of a Copper PorphyryPorphyry copper deposits are copper orebodies that are formed from hydrothermal fluids that originate from a voluminous magma...

Fluid inclusion systematics in porphyry copper deposits ...

01.08.2020· Uniquely, the Grasberg supergiant porphyry copper deposit occupies the breccia-filled diatreme underlying the crater of a maar volcano and preserved a lacustrine-volcaniclastic sequence that marks the paleo-surface to within a few hundred meters. Interpreting fluid inclusion data with respect to this paleo-surface shows that porphyry mineralization extended from a paleo-depth of about 500 m to …

Porphyry Copper Systems* - University of Utah

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-hosted Au deposits in increasingly peripheral locations; and superjacent high- and intermediate-sulfidation epi-thermal deposits. The systems commonly define linear belts, some many hundreds of …

The Haib Copper Porphyry Project, Namibia.

The Haib deposit is a large palaeo-Proterozoic copper porphyry deposit, located in southern Namibia that, according to a Behre Dolbear report written in 1996 (1) has a combined Historical Estimate using a Kriging estimation model of some 1,353 Mt of mineralised material (using a 0.1% Cu cut-off) of which 739 Mt is at 0.29 % Cu (using a 0.2% Cu cut-off) and within which a higher grade section ...

Home - World Copper Ltd.

The Escalones Cu-Mo-Au porphyry-skarn deposit has a historical NI 43-101 resource estimate and significant expansion potential. MORE INFO. Cristal. Project. Cristal is in an under-explored region along a belt of significant copper mines and has good potential for a large buried porphyry copper deposit. MORE INFO. John Drobe P.Geo., World Copper’s Exploration Manager, and a qualified person ...

What is a Porphyry Copper Deposit?

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 made it possible to profitably mine these deposits despite their relatively low ore grades.

Development of a Copper Porphyry deposit - YouTube

31.05.2015· Development of a Copper PorphyryPorphyry copper deposits are copper orebodies that are formed from hydrothermal fluids that originate from a voluminous magma...

Everything You Need to Know About Copper Porphyries ...

In porphyry mineralization, there are many economic minerals that can be found: copper, gold, molybdenum, silver, lead, zinc, tin, and tungsten. There are also associated mineral deposits that can form that depend on the host rock and the distance from the heat source. These include skarn, epithermal, and breccia type deposits. Four Things to Know on Porphyries. Polymetallic nature – …

Coed y Brenin Porphyry-copper deposit: guided field …

Leaching of copper from the deposit by groundwaters led to the formation, on the other side of the hill from here, of a 70-acre peat deposit so richly impregnated with copper that it was profitable to strip the peat, ash it in a stone kiln and sent the ashes off to Swansea for smelting. The site, known as the Turf Copper Mine, was worked in the early 19th Century. Back then, it was believed ...

The Haib Copper Porphyry Project, Namibia.

The Haib deposit is a large palaeo-Proterozoic copper porphyry deposit, located in southern Namibia that, according to a Behre Dolbear report written in 1996 (1) has a combined Historical Estimate using a Kriging estimation model of some 1,353 Mt of mineralised material (using a 0.1% Cu cut-off) of which 739 Mt is at 0.29 % Cu (using a 0.2% Cu cut-off) and within which a higher grade section ...

Gold endowments of porphyry deposits controlled by ...

14.01.2020· Porphyry deposits are natural suppliers of most copper and significant gold to our society. Whereas the Cu-richest (Au-poor) porphyries are related to Andean-type subduction and typical calc ...

MAPPING MINERALS AT THE COPPER FLAT PORPHYRY, NEW MEXICO ...

The Copper Flat porphyry is a Laramide copper deposit in southwest New Mexico. High-altitude AVIRIS data were acquired over the site in 1998. Limonite minerals, carbonates, some phyllosilicates, epidote, gypsum, and tremolite/talc have been preliminarily mapped based on AVIRIS data. The results indicate a fairly regular zonation of hydrothermal alteration minerals around the porphyry that is ...

IG Copper | Advanced the Malmyzh porphyry copper …

IGC’s drill campaigns intersected porphyry copper-gold mineralization at fifteen separate target areas. The majority of the drill meters were concentrated on defining the Valley, Freedom (Southeast), Central, and Flats deposits on nominal 200 meter centers. The open pit constrained inferred resources for these four deposits at a 0.30% copper equivalent cut-off at the time of sale were 1,661 ...

Hydrothermal Alteration Revealed by Apatite …

Apatite in several porphyry copper deposits in British Columbia has a unique set of physical and compositional characteristics that can be used to evaluate the chemical conditions of magmas that formed the causative intrusions or associated hydrothermal alteration. Apatite under visible light and SEM shows no notable variations between unaltered and altered varieties but cathodoluminescence ...

Home - World Copper Ltd.

The Escalones Cu-Mo-Au porphyry-skarn deposit has a historical NI 43-101 resource estimate and significant expansion potential. MORE INFO. Cristal. Project. Cristal is in an under-explored region along a belt of significant copper mines and has good potential for a large buried porphyry copper deposit. MORE INFO. John Drobe P.Geo., World Copper’s Exploration Manager, and a qualified person ...

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