Porphyry alteration
WebAug 23, 2024 · In our previous study on petrogenesis of quartz syenite and granite porphyry, the host rocks of the Late Mesozoic Shapinggou Mo deposit in the Qinling–Dabie orogenic belt, we found that the initial Sr isotopic composition of the host rocks is strongly affected by the degree of K-alteration. Here, we provide further isotopic evidence of the host rocks … WebJun 1, 2024 · Chlorite alteration processes in porphyry deposits. Chlorite displays wide compositional variations that are related to the pressure, temperature and redox …
Porphyry alteration
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WebSep 19, 2015 · PDF Summary of the different alteration types found in Porphyry Copper deposits with detailed mineralogy and spectral signatures. Find, read and cite all the … WebMany geological descriptions of porphyry Cu-Au deposits use the term "potassic alteration". However, this is actually a rather unspecific umbrella term for three different secondary …
WebPorphyry copper deposits are copper ore bodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the deposit … WebThese deposits originate from huge volumes of metal-bearing hydrothermal fluid that exsolved from crystallising crustal magma reservoirs. Recent studies have shown that the propylitic alteration halo – the most extensive zone of alteration associated with porphyry centres – can extend for more than 5 km from the ore deposit itself, and that ...
WebApr 15, 2024 · From the inner quartz syenite porphyry to the outer wall-rock, three mineralization-related alteration zones are present. The inner alteration zone exhibits pervasive K-silicate and quartz–sericite alteration with disseminated molybdenite ± chalcopyrite and veinlets of molybdenite ± chalcopyrite mineralization. Webargillic, phyllic, and potassic alteration with the porphyry copper deposit and the hydrothermal fluid paths have been mapped to the associated skarn deposits (Dilles and Proffett, 2000).
WebThis is common in porphyry copper and porphyry molybdenum deposits. Argillic alteration, commonly present in the distal areas of porphyry deposits, is a low-temperature …
WebApr 11, 2024 · April 11, 2024 – Vancouver, B.C. – Solaris Resources Inc. (TSX: SLS; OTCQB: SLSSF) (“Solaris” or the “Company”) is pleased to report that ongoing field work within the Warintza porphyry cluster has identified a new, potentially well mineralized porphyry called Patrimonio, immediately southwest of the Central deposit at its Warintza Project … eagle study craoWeb2 days ago · Solaris Resources Inc. (TSX: SLS; OTCQB: SLSSF) ('Solaris' or the 'Company') is pleased to report that ongoing field work within the Warintza porphyry cluster has identified a new, potentially well mineralized porphyry called Patrimonio, immediately southwest of the Central deposit at its Warintza Project ('Warintza' or 'the Project') in southeastern Ecuador. cs my lifeWebJun 1, 2024 · The sodic-calcic and sodic alteration types, however, occur more proximally to the porphyry orebody. Sodic-calcic assemblages containing Na plagioclase (An 10 -An 33 … eagle study narrow angleWebApr 11, 2024 · The highest part of the Patrimonio target, exposed on a hilltop, contains galena and sphalerite in a relatively low-temperate alteration mineral assemblage that is typically located above and lateral to porphyries. The presence of these minerals implies that the porphyry has been minimally eroded and is well-preserved. eagle study tablesWebThe hydrothermal alteration, which was accompanied by the introduction of copper sulphides in the disseminated copper deposits, is considerably more complex than is generally recognized.Detailed microscopic study of selected porphyry specimens from the important deposits in the United States, together with a review of published data, leads to … cs mystic\u0027sWebThese rocks form from the slow cooling of magma in the Earth’s crust and provide the setting for the formation of porphyry deposits. Hydrothermal Alteration Zones: Porphyry deposits are associated with hydrothermal … eagle study smokingWebThese deposits originate from huge volumes of metal-bearing hydrothermal fluid that exsolved from crystallising crustal magma reservoirs. Recent studies have shown that the … eagle study ophthalmology