WebAug 1, 2024 · Porphyry copper deposits consist of low-grade stockwork and disseminated sulfide zones that contain characteristic vein generations formed during the evolution of the magmatic-hydrothermal systems. WebMar 23, 2024 · Porphyry vectors identified include: Magnetite veins and deformed porphyry B-Veins, with chalcopyrite and bornite. Leached diorite with interpreted B-veins and interlayered pyrophyllite...
Quartz solubility in the H2O-NaCl system: A framework for ... - USGS
WebApr 16, 2024 · Generally, B veins crosscut the monzogranite and monzogranite porphyry that were affected by phyllic alteration. B veins at Zhunuo have been subdivided into two … WebJun 2, 2024 · This fluid is forced to the edge of the granite pluton and forms thick veins or pods. The fluid apparently solidifies rapidly at relatively high temperatures, under conditions that favor a few very large crystals rather … east 123456
Pictures and Descriptions of Igneous Rock Types
Webrelative position of the vein in the shear zone. The vein system appears to be a southeasterly extension of the cupriferous carbonate veins reported at Copper Camp and in the Scapegoat Wilderness, most notably at Bugle Mountain (Mudge and others, 1974). The presence of the carbonate veins and the quartz-monzonite porphyry dike in the same shear WebJan 16, 2024 · The second interval was high-grade with 55.8 g/t Au and 33.5 g/t Ag over 1.5 meters, from 449.5m within Porphyry Y, although no notable veins or mineralization were observed. Webveins, with a gangue assemblage of quartz + sericite + calcite + kaolinitc(?) + epidote + chlorite, and a variety of base and precious metal minerals. The coexistence of vapor- and liquid-rich fluid inclusions in vein quartz shows that the molybdenite-bearing anhydrite and quartz veins formed at 360 ø to 410øC from boiling, low-salinity brines. east 10 street nyc