2010年1月1日 · Porphyry Cu systems are initiated by injection of oxidized magma saturated with S- and metal-rich, aqueous fluids from cupolas on the tops of the subjacent parental plutons.

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 epi-thermal deposits.

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 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.

Updated geochronology, along with geochemistry, mineralogy, and geologic mapping, will help refine the location and temporal evolution of critical minerals in Laramide porphyry copper systems. The main focus of this project is the refinement of Laramide pluton ages using the 40Ar/39Ar dating method.

2010年3月22日 · Porphyry copper deposits are the world's most important source of copper, with precious metals commonly being recovered as by-products (Sillitoe, 2010). The hypogene ores in porphyry...

2016年11月4日 · Porphyry copper deposits form from hydrothermal fluids that come from a magmatic source, generally a volcano. The copper is concentrated first by magmatic-hydrothermal processes, then copper can be further concentrated by later supergene fluids, typically meteoric waters.

Several porphyry copper depos-its and other areas in New Mexico are currently being examined by mining and exploration companies for potential development. Additional potential exists in other districts in New Mexico.

Tectonic elevation of copper porphyry systems with oxidation and erosion could result in the several stages of ground water dropping and movement of chalcocite blankets. Each new process results in dissolution of previous blanket and formation of the new one.

2024年6月1日 · In this paper I develop the thesis that the formation of these exceptional geochemical anomalies is not the product of special triggers or of unusual complexity but the result of common geologic processes that are unusually well aligned in space and time.