Multiphase evolution of fluids in the Rudnik hydrothermal-skarn deposit (Serbia): new constraints from study of quartz-hosted fluid inclusions
Објеката
- Тип
- Рад у часопису
- Верзија рада
- објављена верзија
- Језик
- енглески
- Креатор
- Stefan Petrović, Ronald J. Bakker, Vladica Cvetković, Rade Jelenković
- Извор
- Mineralogy and Petrology
- Издавач
- Springer Science and Business Media LLC
- Датум издавања
- 2024
- Сажетак
-
This study presents and discusses first detailed petrographic, microthermometric and Raman spectroscopic data from quartzhosted fluid inclusions at Rudnik Zn-Pb-Cu-Ag skarn deposit (Serbia) and combines them with the information on skarnand ore paragenesis. Three periods in the metamorphic-hydrothermal history of the deposit are recognized: 1) the pre-ore prograde skarn period when garnet-clinopyroxene skarns formed, 2) the syn-ore period that encompasses a retrograde stage marked by epidote and zoisite and a quartz-sulfide stage characterized by quartz, pyrrhotite, sphalerite, galena and chalcopyrite, and 3) the post-ore period associated with precipitation of calcite and quartz. The hydrothermal evolution is inferred from studying six groups of quartz-hosted fluid inclusions (FI). Two-phase FI of high- (Group A) and moderate salinity (Group B) are found in quartz cores and homogenized at 380–390 °C (mode) and 370–380 °C (mode), respectively.
Group A FI consists of H2O- NaCl liquids and CO2- CH4 gas mixtures and likely represents the original fluid composition, whereas Group B FI records dilution of the original fluid at constant temperature, with a slight increase in CH4 contents.
The quartz cores also contain Group C as volatile-rich FI (mostly CO2 with up to 10 mol% CH4 and H2S) of a moderately low salinity and liquid-rich Group D FI composed of pure water with homogenization temperatures of 180–200 °C (mode).
The transitional zones of quartz crystals show overgrowth textures and host Group E FI with low salinity that homogenized at 235–401 °C, which vapour phase is a CO2- CH4 mixture with up to 17 mol% CH4.
Group F comprises FI found within the rim zones of quartz crystals and they exhibit a low salinity and homogenization temperatures between 259–365 °C. Accordingly, the hydrothermal history at Rudnik involved: a) mixing of different salinity fluids at high temperatures (Groups A and B—retrograde stage), b) introduction of fluids with high volatile contents (Group C) and cooling of fluids with constant salinity (between Groups E and F), which likely correspond to the quartz-sulfide stage, and c) inflow of meteoric water (Group D—the post-ore quartz-calcite stage). - том
- 118
- Број
- 3
- почетак странице
- 461
- крај странице
- 482
- doi
- 10.1007/s00710-024-00860-7
- issn
- 0930-0708
- Subject
- skarnovska ležišta, rudnik, fludine inkluzije, srpska kenozojska magmatska provincija, Zapadno Tetisjki metalogenetski pojas
- skarn deposits, mine, fluid inclusions, serbian cenozoic magmatic province, Western Tethys metallogenetic belt
- Шира категорија рада
- M20
- Ужа категорија рада
- М22
- Је дио
- 176016, F9, F17
- Права
- Затворени приступ
- Лиценца
- All rights reserved
- Формат
Stefan Petrović, Ronald J. Bakker, Vladica Cvetković, Rade Jelenković. "Multiphase evolution of fluids in the Rudnik hydrothermal-skarn deposit (Serbia): new constraints from study of quartz-hosted fluid inclusions" in Mineralogy and Petrology, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s00710-024-00860-7
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