Localization patterns of gold mineralization in the Phuoc Son area, Central Vietnam

Background. In this paper, the authors aim to reveal localization patterns of gold mineralization in Phuok Son region Central Vietnam, which formed a Proterozoic-Cambrian metamorphic complex zone Late Paleozoic Benzhang–Queshon granite block. Aim. To determine Phuoc area, Vietnam. Materials and methods. The research was based on geological materials, as well mine working appraisal data. material composition materials studied using 15 transparent sections 18 polished sections. total, 127 samples were subjected atomic absorption spectroscopy. Results. Within Phuoс ore field site Baidat Baigo mines located reverse-shear termination investigated. Here, bodies are represented by quartz-sulfide veins subparallel schistosity. ore-bearing zones layered tectonic faults, at end period complicated western limbs locks anticlines. These under regional sublatitudinal horizontal stresses. horizons carbonaceous quartz-sericite schists great importance control. There steeply dipping post-ore faults that displace bodies. Two stages can be distinguished. early stage characterized wide development sphalerite smaller amount gold. later associated with main precipitation formation galena. According geochronological data argon isotopy biotite, probably Triassic (250–200 Ma ago), extinction metamorphism Indosinian orogeny Conclusion. results obtained should used when conducting local forecasting deposits