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Notwithstanding the ubiquity of porphyry Cu belts, major deposits may also occur in isola-tion or at least as distant outliers of coherent belts and provinces (e.g., Pebble in Alaska, Butte in Montana, and Bingham in Utah; Sillitoe, 2008; Fig. 1).
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 sedimenthosted Au deposits in increasingly.
Porphyry copper deposits provide around 75% of the world’s copper and are an important source of gold and other metals (Sillitoe 2010). One aspect of porphyry deposit models that is poorly understood …
22 de mar. de 2010 · According to Sillitoe (2010) and crosscutting relationships between early, main and late mineral phases, four major types of veins are distinguished in the Daralu deposit.
The systems are closely related to underlying composite plutons, at paleodepths of 5 to 15 km, which represent the supply chambers for the magmas and fluids that formed the vertically elongate (>3 km) stocks or dike swarms and associated mineralization.
Sistemas de Pórfidos Cupriferos - Richard H. Sillitoe - 2010 | PDF | Roca (geología) | Cobre. Este documento resume los sistemas de pórfidos cupríferos, que alojan algunos de los tipos de mineralización más ampliamente distribuidos en los límites de placa convergente. Los sistemas se forman... by leonel_coaguila.
Sillitoe (2010)..... 12 Figura 2.3: Modelo de Lowell & Guilbert (1970): A) Zonas de alteración hidrotermal. B) Zonas de mineralización hidrotermal. C) Ocurrencia de la mineralización de sulfuros.
