Potassic alteration assemblage
WebPORPHYRY COPPER SYSTEMS Exploring and understanding porphyry copper systems Modified magmatic - hydrothermal breccias model after (Baker… Web1 Oct 2024 · The alteration mainly includes silication, carbonatation, albitization, and chloritization, along with potassic feldspathization and sericitization. The silication, ankeritization, and albitization predate the metal sulfide hydrothermal.
Potassic alteration assemblage
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Webalteration is usually disposed in the exterior parts of the alteration types from near the veins. The propylitic alteration affects the deeper parts of the subvolcanic rocks and it is … Web12 Apr 2024 · In general, the dominant alteration zones associated with Cu mineralization (mainly as stockwork–type veinlets and disseminated pyrite and chalcopyrite) are potassic and to a lesser extent sericitic alteration types (Fig. 6 g).
WebThese orebodies contain well-developed potassic alteration assemblages that were formed during brittle deformation that resulted in the formation of breccia bodies. ... Sulfides in both groups of deposits were precipitated … Web1 Jan 2008 · Sulfides in both groups of deposits were precipitated first with potassic alteration and more importantly with a later assemblage of …
Weblinked to a calc-potassic style of alteration associated with the intrusion of a mafic dyke, whereas subsequent quartz-sericite-chalcopyrite alteration is linked with lower grade gold … Web21 Jul 2024 · In these experiments, potassic alteration was induced without external K-input, but via dynamic evolution of fluid driven by an initial disequilibrium between mineral and …
Web10 Feb 2024 · The potassic alteration is overprinted by later stages of alteration (e.g., phyllic). The phyllic alteration assemblage consists of quartz, sericite, and pyrite. …
Web16 Jul 2024 · Potassic alteration involves the formation of new potassium feldspar and/or biotite. There may also be small amounts of sericite, chlorite and quartz. This type of … sherco 290 trials for sale craigslistWebRinkite-(Ce) in the nepheline syenite pegmatite from the Saima alkaline complex, northeastern China: Its occurrence, alteration, and implications for REE mineralization. ... sherco 290 2005Web1 Apr 2024 · Potassic alteration is observed as a red brick-colored aphanitic assemblage ( Fig. 4 A–C). It is mostly composed of microcline, quartz and pyrite with smaller amounts … sprint wireless phone serviceWebThe Kuru-Tegerek Cu-Au-Mo deposit is situated in a system of Late Carboniferous subduction-related magmatic arcs of the Middle Tien Shan, which together constitute a metallogenic belt of Cu-Au-Mo (±W) porphyry, with local skarns, deposits. The deposit is related to magnetite-series gabbro-diorite to tonalite intrusion. It contains prograde … sherco 250 trials bikeWeb28 Feb 2024 · The role of potassic alteration and associated quartz veins for porphyry Cu mineralization in two representative porphyry systems (El Salvador, Chile, and Grasberg, … sprint wireless phones to purchasePotassic alteration is a type of hydrothermal alteration that results in the formation of potassium-rich minerals, such as orthoclase, sanidine, and microcline. This type of alteration is typically associated with porphyry copper and gold deposits and is considered an important mineralization indicator. See more Alteration refers to a change in the physical or chemical properties of rocks and minerals. In geology, alteration is a common term used to describe the transformation of rocks and minerals due to various geological … See more Hydrothermal alteration is important in mineral exploration and mining because it can provide valuable information about the location and type of … See more There are several factors that control the extent and nature of hydrothermal alteration. Some of the key controls include: 1. … See more sprint wireless phone providerWeb1 Jan 2016 · Potassic, sericite-chlorite, sericitic, and propylitic alteration assemblages are zoned about the porphyry intrusions. The early and intermineral porphyry intrusions are … sherco 290 review