Year-end Sale % OFF 
Abstract
REE distribution patterns of the ores and host rocks of the Dzhimidon vein lead-zinc deposit (North Caucasus, Ossetia, Sadon mining district, Russia) have been analyzed to elucidate the source(s) of hydrothermal ore deposits. Two types of prevailing rocks are involved in ore formation - Paleozoic granites (the main ore-hosting rocks at the majority of deposits) and Precambrian schists (specific only the for host rocks of the Dzhimidon deposit). The source of ore components tends to be complex and includes host rocks in variable proportions that could be characterized by REE distribution in ores. Interaction of water with combined sources was thermodynamically modeled. Critical differences were found in the ore-forming models, with variable sequence and rock proportions during interaction with barren fluid.
Highlights
The determination of fluid sources is a fundamental problem in interpreting formation of hydrothermal ore deposits
The source of ore components is likely to have been complex and includes host rocks in variable proportions which could be characterized by rare earth elements (REE) distribution in ores (Fig. 2)
Geochemical evaluation and thermodynamic modeling of hydrothermal veining of the lead-zinc deposit of the Sadon mining district (North Caucasus, Ossetia, Russia) demonstrate that ore element behavior depends on extent of water/rock interaction
Summary
The determination of fluid sources is a fundamental problem in interpreting formation of hydrothermal ore deposits. Possible sources of components for hydrothermal vein lead-zinc deposits of the Sadon ore district are the Paleozoic granites, formed during pre-Callovian time (J2), which host most of the ore veins This conclusion was first reported by Turgarinov et al [1], on the basis of identical Pb isotope compositions of galena from 11 deposits of North Ossetia and K-feldspars from magmatic and metamorphic rocks of the area. “direct sources of the lead at the deposits were Paleozoic granitoids,” while “extraction of lead was related to the metasomatic reworking of feldspathic component of the granitoids” in the Middle Jurassic This conclusion is supported by our data on the distribution of trace ore elements in the primary dispersion aureoles at different horizons of the Kholst, Arkhon, Zgid, and Dzhimidon deposits, as well as by the results of thermodynamic modeling of ore mobilization and ore formation [2, 3]. REE patterns of some ore samples correspond to REE patterns of either Paleozoic granites or Precambrian schists (Fig. 1a, 1c), REE patterns of most ore samples indicate a combined/complex source for ore components
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
