Porphyry copper deposit - Wikipedia
网页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.
Porphyry copper deposit | Ore genesis, Hydrothermal, Magmatic
网页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.
Supergiant porphyry copper deposits are failed large eruptions
网页2022年5月6日 · In this study we focus exclusively on the syn-subduction Cu-rich porphyry copper deposit type (hereafter referred to as porphyry copper deposits), occurring in thick continental arcs.
Clues to hidden copper deposits | Nature Geoscience
网页2016年2月1日 · Porphyry copper deposits are large. They commonly consist of hundreds of millions to billions of tonnes of ore. However, they contain typically only 0.5–1.5% copper and are therefore classified...
Porphyry Copper Systems1 | Economic Geology - GeoScienceWorld
网页2010年1月1日 · 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 …
Crustal magmatic controls on the formation of porphyry copper ... - Nature
网页2021年7月6日 · Porphyry deposits are large, low-grade metal ore bodies that are formed from hydrothermal fluids derived from an underlying magma reservoir. They are important as major sources of critical...
Porphyry copper deposits of the world: Database, maps, and …
网页2002年8月1日 · This publication contains a computer file of information on porphyry copper deposits around the world. 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 …
From long-lived batholith construction to giant porphyry copper …
网页2021年1月28日 · This study documents the magmatic evolution of the Palaeocene–Eocene Yarabamba Batholith, Southern Peru, that was incrementally assembled between ~ 67 and ~ 59 Ma and hosts three, nearly contemporaneous, giant porphyry Cu–Mo deposits that formed at 57–54 Ma (Quellaveco, Toquepala and Cuajone).
How to make porphyry copper deposits - ScienceDirect
网页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 ...
网页As a group, porphyry copper deposits exhibit many distinctive characteristics: close spatial and genetic relationship with apical parts of epizonal, felsic, multiple igneous intrusions, which invariably include porphyritic members containing primary phenocrystic hornblende or biotite (commonly both);
- 某些结果已被删除