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.

2010年1月1日 · 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 epithermal deposits.

2020年1月1日 · Porphyry copper deposits (PCDs) represent shallow level intrusions (2–5 km) in the crust. Mineralization of Cu ores tend to occur at the tops of porphyry systems in cupolas. Possible regimes where Cu may be mobilized include hydrothermal circulation at mid-ocean ridge centers, dehydration or melting of the subducting slab, and late stage ...

2025年1月2日 · Porphyry Cu deposits (PCDs) belong to the broader category of magmatic-hydrothermal deposits known as porphyry copper systems [1]. These deposits supply nearly three-quarters of the world’s copper, about one-fifth of its gold, most of the molybdenum, rhenium, selenium, and tellurium, along with smaller quantities of other metals such as ...

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 …

2013年7月23日 · 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 more than one billion tons in size.

Large tonnage and low grade are characteristic features of porphyry copper deposits. According to Lowell (1974), a deposit should have at least 20 million tonnes of ore containing a minimum average grade of 0.1 % Cu to qualify as a porphyry copper

Porphyry copper deposits are integral to the global supply of copper and other valuable metals. Understanding their formation processes, geological characteristics, and the economic and environmental considerations associated with their development is crucial for sustainable resource management.

2024年10月29日 · Porphyry copper deposits (PCDs) are vital sources of copper, gold, and molybdenum, significantly impacting the global economy. This review synthesizes recent advancements in understanding the...

2024年11月4日 · We show that the isotopic signatures of Laramide granitic rocks are consistent with a Proterozoic crustal source that was potentially pre-enriched in copper. This source underwent water-fluxed...