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Porphyry Copper Deposits are the largest source of Cu/Mo/Au.
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
01/01/2020· 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).
17/10/2019· 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.
As a result of this dynamic, copper porphyry deposit kind of looks like a tooth diagram. What you see in a copper porphyry deposit is the ore body and three alterations (potassic, phyllic, and
20/10/2020· 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 commonly present in the propylitic alteration. Pyrite is commonly found in the phyllic alteration.
As a result of this dynamic, copper porphyry deposit kind of looks like a tooth diagram. What you see in a copper porphyry deposit is the ore body and three alterations (potassic, phyllic, and
17/10/2019· 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.
Porphyry copper deposits result from the complex interactions and feedbacks of many processes. Owing to the complexity, a succinct definition that includes the essential attributes of this deposit class is elusive. Consequently, this descriptive model uses a working definition of a porphyry copper deposit. A porphyry copper deposit is defined
Porphyry copper deposits are copper ore bodies 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
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
Using Whole Rock and Zircon Geochemistry to Assess Porphyry Copper Potential of the Tonggou Copper Deposit, Eastern Tianshan by Xue-Bing Zhang 1,2,*,Feng-Mei Chai 1,Chuan Chen 1,Hong-Yan Quan 3,Ke-Yong Wang 1,4,Shun-Da Li 1 and Shi-Shan Wu 1
Porphyry copper systems supply about 75% of the world's copper. They form above subduction zones and are preferentially associated with calc-alkaline magmas. Such magmas result from continuous
Porphyry copper deposits are large (commonly hundreds to thousands of million tonnes) and low to medium in grade (0.3 to 1.5% copper). The majority of gold-rich porphyry deposits occur in the circum-Pacific and commonly contain 0.3 to 1.6 g/t gold.
01/10/2002· Porphyry copper deposits are among the largest reservoirs of gold in the upper crust and are important potential sources for gold in lower temperature epithermal deposits. Whether gold remains in porphyry copper deposits is important both to their economic attractiveness and to the distribution of gold in the upper crust.
Porphyry copper deposits result from the complex interactions and feedbacks of many processes. Owing to the complexity, a succinct definition that includes the essential attributes of this deposit class is elusive. Consequently, this descriptive model uses a working definition of a porphyry copper deposit. A porphyry copper deposit is defined
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
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 feet in diameter. These small intrusions are the
Porphyry copper deposits are copper ore bodies 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
26/06/2020· Idealized cross-section of porphyry copper deposit formation. Company news releases relating to copper porphyry deposits will often refer to these various alteration zones. These includes potassic, propylitic, argillic and phyllic. Although these zones can overlap and make understanding the deposit difficult, there is a general consensus on how these zones are related to economic
Porphyry Copper Deposit Model By David A. John, editor, with contributions by Robert A. Ayuso, Mark D. Barton, Richard J. Blakely, Robert J. Bodnar, John H. Dilles, Floyd Gray, Fred T. Graybeal, John C. Mars, Darcy K. McPhee, Robert R. Seal, Ryan D. Taylor, and Peter G. Vikre Chapter B of Mineral Deposit Models for Resource Assessment . This report contains a revised descriptive model of
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 voluminous rhyolitic and andesitic volcanics, were followed by
Porphyry copper deposits are large (commonly hundreds to thousands of million tonnes) and low to medium in grade (0.3 to 1.5% copper). The majority of gold-rich porphyry deposits occur in the circum-Pacific and commonly contain 0.3 to 1.6 g/t gold.
Using Whole Rock and Zircon Geochemistry to Assess Porphyry Copper Potential of the Tonggou Copper Deposit, Eastern Tianshan by Xue-Bing Zhang 1,2,*,Feng-Mei Chai 1,Chuan Chen 1,Hong-Yan Quan 3,Ke-Yong Wang 1,4,Shun-Da Li 1 and Shi-Shan Wu 1
Porphyry copper systems supply about 75% of the world's copper. They form above subduction zones and are preferentially associated with calc-alkaline magmas. Such magmas result from continuous
Porphyry copper deposits result from the complex interactions and feedbacks of many processes. Owing to the complexity, a succinct definition that includes the essential attributes of this deposit class is elusive. Consequently, this descriptive model uses a working definition of a porphyry copper deposit. A porphyry copper deposit is defined
Porphyry Copper Deposits Shelby Cloer, Rhiannon Garrard, and Ian Johnson Definition and Occurrence Porphyry copper deposits define a broad range of sulfide rich, ore bearing intrusions and surrounding rocks found generally formed at depths of 1-4 km within continental crust. These deposits are distinguishable from other granite-related geological bodies such as skarns and mantos by
26/06/2020· Idealized cross-section of porphyry copper deposit formation. Company news releases relating to copper porphyry deposits will often refer to these various alteration zones. These includes potassic, propylitic, argillic and phyllic. Although these zones can overlap and make understanding the deposit difficult, there is a general consensus on how these zones are related to economic
Porphyry Copper Deposit Model By David A. John, editor, with contributions by Robert A. Ayuso, Mark D. Barton, Richard J. Blakely, Robert J. Bodnar, John H. Dilles, Floyd Gray, Fred T. Graybeal, John C. Mars, Darcy K. McPhee, Robert R. Seal, Ryan D. Taylor, and Peter G. Vikre Chapter B of Mineral Deposit Models for Resource Assessment . This report contains a revised descriptive model of
Clay minerals of hydrothermal origin associated with porphyry copper deposits are commonly zoned at the deposit or prospect scale (e.g. the Campana Mahuida porphyry Cu deposit; Franchini et al
Porphyry copper systems supply about 75% of the world's copper. They form above subduction zones and are preferentially associated with calc-alkaline magmas. Such magmas result from continuous
30/09/2020· PORPHYRY COPPER DEPOSIT. mining 13d. SolGold kicks off drilling at Porvenir. The project is located about 100km north of the Peruvian border in Zamora Chinchipe province, and is situated within the Jurassic segment of the Andean porphyry belt, which hosts several of the world’s largest and most significant copper and gold deposits. Drilling operations are currently underway at
Porphyry Copper Systems* lion years, whereas deposit clusters or alignments as well as entire belts may remain active for 10 m.y. or longer. The alteration and mineralization in porphyry Cu systems, occupying many cubic kilometers of rock, are zoned outward from the stocks or dike swarms, which typically comprise several generations of intermediate to felsic porphyry intrusions. Porphyry
Application Notes
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
