WebAug 28, 2024 · 9.3.2.1 Porphyry Deposits. Porphyry deposits are a special kind of hydrothermal deposit. They form when hydrothermal fluids, derived from magmas at … WebJan 1, 2024 · Major controls on the generation of ore-forming magmas for porphyry Cu systems remain controversial. This study provides a comprehensive dataset for the …
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WebJan 11, 2024 · Several large-scale porphyry copper deposits (PCDs) with high economic value have been excavated in the Duolong ore district, Tibet, China. However, the high … WebJan 1, 2005 · Porphyry deposits arguably represent the most economically important class of nonferrous metallic mineral resources. These magmatic-hydrothermal deposits are … how to start a startup in india
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WebPorphyry deposits occur in two main settings within the orogenic belts; in island arcs and at continental margins. Deposits of Cenozoic and, ... volatile-enriched magmas emplaced in highly permeable rock are ore-forming … Characteristics of porphyry copper deposits include: The orebodies are associated with multiple intrusions and dikes of diorite to quartz monzonite composition with porphyritic textures.Breccia zones with angular or locally rounded fragments are commonly associated with the intrusives. The sulfide … See more 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 … See more Geological background and economic significance Porphyry copper deposits represent an important resource and the dominant source of copper … See more Copper is not the only metal that occurs in porphyry deposits. There are also porphyry ore deposits mined primarily for molybdenum, many of which contain very little copper. … See more Mexico • Cananea • La Caridad • Santo Tomas Canada See more WebName (s) in local language (s): A large modern open-pit copper-rhenium-molybdenum mine in copper porphyry, disseminated fine-grained sulphide ore with abundant anhydrite veins and tourmaline breccias. Owned by SPCC. Reserves: 700 million tons @ 0.74% Cu. Crystal vugs are either rare or nonexistent. The oxide zone has been completely consumed. how to start a stem program for minority kids