Search This Blog

Monday, February 24, 2025

https://youtu.be/bw6Y_Qx_bbc

Source: https://shorturl.at/sIWj5 The study examines the mineralogical and geochemical features of the Southern Ashaly gold deposit in East Kazakhstan, which contains both gold-sulfide and gold-low-sulfide-quartz ore types. The deposit underwent two ore mineralization phases, incorporating four stages: pyrite, pyrite-arsenopyrite, sulfide, and polymetallic. Researchers characterized the morphological and mineralogical-geochemical features of ore minerals, identifying diagenetic, metamorphic, and hydrothermal generations of pyrite, each displaying unique geochemical traits. Notably, elevated gold concentrations were found in diagenetic pyrite. The study also examined native gold of two generations, with average fineness values of 884‰ (early) and 998‰ (late). The research reveals that the formation of gold-sulfide ores occurred at temperatures ranging from 384 to 241°C, corresponding to the greenschist-zeolite facies of metamorphism. The study identifies key mineralogical and geochemical features of the Southern Ashaly deposit, which serves as a regional reference. By integrating isotopic-geochronological, thermobarogeochemical, and structural data, the study seeks to develop a comprehensive geological-genetic model for similar gold deposit types in East Kazakhstan. Ultimately, the study of the Southern Ashaly deposit advances the understanding of ore-forming processes in orogenic gold deposits within the West Kalba gold-bearing belt. P. Geo. Ricardo A Valls, M. Sc. and Geo Gadfly Valls Geoconsultant ORCID ID- https://orcid.org/0000-0002-5421-0914 Scopus Author ID: 7003369619/35335510700 ResearcherID: S-6604-2018 If you like this content, please "buy me a coffee" https://www.buymeacoffee.com/goldendroplets

No comments: