Porphyry Copper-Gold Deposits . Porphyry Cu-Mo Deposits . Tectonic Setting Porphyry copper deposits are typically formed in a continental arc and island arc settings along the Pacific Ring of Fire – the west coast of North and South America to the Eastern portions of …

 · 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 are …

 · In a paper published in the journal Scientific Reports, the scientists describe a new 4D model for the formation of porphyry-type copper deposits which challenges the current paradigm of a ...

 · Copper porphyry deposits are responsible for 75 percent of the world's copper resources and reserves, and 20 percent of global gold production. These polymetallic powerhouses also account...

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 …

 · Covellite (CuS), chalcocite (Cu 2 S), azurite (Cu 3 (CO 3) 2 (OH) 2 and cuprite (Cu 2 O) are examples of secondary minerals. The striking blue-green and iridescent colours of some of these ore minerals …

,porphyry copper deposit,porphyry copper deposit [] porphyry copper deposit [] porphyry copper deposit >> DNS ...

porphyry copper deposit, large body of rock, typically a porphyry of granitic to dioritic composition, that has been fractured on a fine scale and …

 · in addition to the porphyry copper deposit itself, the 'porphyry copper system' encompasses several environments of hydrothermal mineralization and alteration, including lithocaps of advanced argillic alteration, which in some cases host high-sulfidation epithermal au–ag–cu–as deposits, more distal intermediate-sulfidation au–ag and ag–au …

 · January 1, 2016 Porphyry Cu and porphyry Mo deposits are large to giant deposits ranging up to >20 and 1.6 Gt of ore, respectively, that supply about 60 and 95% of the world's copper and molybdenum, as well as significant amounts of gold and silver.

"ekerite porphyry" In many porphyry copper deposits, additional enrichment of the metal has been caused by surficial weathering .,。 Prospecting of porphyry copper and other types of ore deposit in the eastern tianshan metallogenic zone …

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 …

 · An estimated 1.4 undiscovered deposits contain a calculated mean of 1.8 Mt copper and a median of 0.72 Mt copper. The spatial density for the 2.4 known plus estimated undiscovered deposits in this permissive tract is approximately 7 deposits per 100,000 km 2 . Western Canada has been thoroughly explored for porphyry copper deposits.

 · The study describes a new 4D model for the formation of porphyry-type copper deposits which challenges the current paradigm of a progressive, multi-million year, arc-scale ramp up in the ...

 · Porphyry copper deposits Epithermal deposits originate in or nearby porphyritic intrusives which were saturated by water as they intruded in shallow areas of the crust (less than 6 km depth (.

 · porphyry copper deposits, such as Bingham and Bajo de la. Alumbrera, sulphide deposition was primarily due to cooling. of metal-rich, saline brines below 400ºC (Ulrich …

 · Like most ore deposits, porphyry copper deposits (PCDs) are rare, but they exhibit spatiotemporal patterns of distribution and geochemical signatures that may hint …

 · Abstract. Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits …

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. …

 · : The origin of the Dexing porphyry Cu deposit is hotly debated. Zircon and apatite are important accessory minerals that record key information of mineralization processes. SHRIMP zircon U-Pb analyses of granodiorite porphyries yield ages of 168.9 ± 1.2 Ma, 168.0 ± 1.0 Ma, and 172.8 ± 1.3 Ma, whereas zircons in the volcanic rocks of the …

 · 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.

 · The key to porphyry exploration is the alteration of the surrounding rocks that occurred during the intrusion and mineralization. The so-called prophylactic folic and potassic alterations I spoke about. …

 · Porphyry deposits and IOCG's are the world's primary source of copper and they account for more than 60% of the copper production globally but in addition to copper they also supply of the world's …

 · It also presents new grade and tonnage models for three subtypes of porphyry copper deposits, maps showing locations and general ages of these deposits, and a preliminary analysis with a number of figures summarizing many of the properties of these porphyry-style deposits.

 · The world's second-largest copper mine, Collahuasi, produced 559,000 Mt of copper in 2018. The world's second-deepest open-pit copper mine, Codelco's massive Chuquicamata deposit in Chile ...

Porphyry Cu deposits in China contain a total resource of ∼47 million tonnes (Mt) Cu at average grades ranging mostly from 0.2 to 0.7% Cu (most <0.5% Cu), accounting for 42% of China's Cu reserves. In terms of contained Cu, 14 Cu-rich porphyry deposits are classified as giant (≥2.0 Mt Cu), and 38 are classified as intermediate (≥0.06 Mt ...

 · 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-hosted Au deposits in increasingly peripheral locations; and superjacent high- and intermediate-sulfidation …

Porphyry Cu and porphyry Mo deposits are large to giant deposits ranging up to >20 and 1.6 Gt of ore, respectively, that supply about 60 and 95% of the world's copper and molybdenum, as well as significant amounts of gold and silver.

 · The large to giant porphyry Cu deposits (Cu endowment >0.32 Mt Cu (refs 92,182,183); blue circles) are preferentially located in the thick crust (>40 km), like the Andes.Orange circles and the ...

 · Mass balance calculations suggest that supergiant porphyry copper deposits (>10 million tonnes copper) require magma volumes (up to >2500 km 3) and magma injection rates (>0.001 km 3 year −1 ...

 · 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 …

Porphyry Cu deposits in China contain a total resource of ∼47 million tonnes (Mt) Cu at average grades ranging mostly from 0.2 to 0.7% Cu (most <0.5% Cu), accounting for 42% of China's Cu reserves. In terms of contained Cu, 14 Cu-rich porphyry deposits are classified as giant (≥2.0 Mt Cu), and 38 are classified as intermediate (≥0.06 Mt Cu).

 · Porphyry Cu and porphyry Mo deposits are large to giant deposits ranging up to >20 and 1.6 Gt of ore, respectively, that supply about 60 and 95% of the world's copper and molybdenum, as well as significant amounts of gold and silver. These deposits form from hydrothermal systems that affect 10s to >100 km3 of the upper crust and result in …

 · These deposits provide over 60% of the world's copper and include other important metals such as molybdenum, gold and silver. Porphyry copper deposits are known for their low grades and very high …

Porphyry Copper Systems. R. Sillitoe. Published 2010. Geology. Economic Geology. 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 …