Thermobarometric properties of epigenitic mineralization based on fluid inclusion data in Dehkoyeh salt dome, Lar, Fars province

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JABBARIAN M.; KARIMI M.; LOTFI M.; NOORI KHANKAHDANI K.

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Journal: GEOSCIENCES Year:2020 | Volume:29 | Issue:115 Page(s): 289-300

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Title

Thermobarometric properties of epigenitic mineralization based on fluid inclusion data in Dehkoyeh salt dome, Lar, Fars province

Author(s)

JABBARIAN M. | KARIMI M. | LOTFI M. | NOORI KHANKAHDANI K. | Issue Writer Certificate

Keywords

DehkooyeQ1

Salt domeQ2

Epigenetic mineralizationQ1

IronQ2

Fluid inclusionQ1

Abstract

Dehkooye Salt dome is located 30 km northeast ofLar in Fars province, Iran. The Salt dome occurred in Zagros folded zone where infracambrian thick evaporate strata (Hormoz series) intruded Cenozoic sedimentary rocks. Core of the dome mainly made up of salt and gypsum and overlain by marl, gypsum, limestone, and dolomitic formations. Besides primary stratiform mineralization, epigenetic Iron and copper mineralization occurred mostly within dolomitic lime stone members in the cap rock of the Salt dome in Hormoz Formation. Ore mineralogy is simple and includes hematite, minor goethite, and sparse occurrence of magnetite. Chalcopyrite is evident as minor phase. Samples for Fluid inclusion studies were collected from sulfide-bearing quartz veins and veinlets. According to homogenization temperature (Th: 172-374 ° C with average 374° C), which in fact represents the boiling point of the irrigation solution, indicate the epithermal to the beginning ofhypothermal conditions and the mean of the beginning of the mesothermal. The depth formation of deposit was between 50 to 1500 meters and an average of about 200 meters. The hydrothermal solutions forming the ore deposit, due to their high salinity, have the origin of magmatic brine that have been displaced because of low density and tectonic pressures. This solutions have climbed upwards along faults and fractures and after being mixed with meteoric waters, Epigenetic mineralization is created.

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APA: Copy

JABBARIAN, M., KARIMI, M., LOTFI, M., & NOORI KHANKAHDANI, K.. (2020). Thermobarometric properties of epigenitic mineralization based on fluid inclusion data in Dehkoyeh salt dome, Lar, Fars province. GEOSCIENCES, 29(115 ), 289-300. SID. https://sid.ir/paper/378285/en

Vancouver: Copy

JABBARIAN M., KARIMI M., LOTFI M., NOORI KHANKAHDANI K.. Thermobarometric properties of epigenitic mineralization based on fluid inclusion data in Dehkoyeh salt dome, Lar, Fars province. GEOSCIENCES[Internet]. 2020;29(115 ):289-300. Available from: https://sid.ir/paper/378285/en

IEEE: Copy

M. JABBARIAN, M. KARIMI, M. LOTFI, and K. NOORI KHANKAHDANI, “Thermobarometric properties of epigenitic mineralization based on fluid inclusion data in Dehkoyeh salt dome, Lar, Fars province,” GEOSCIENCES, vol. 29, no. 115 , pp. 289–300, 2020, [Online]. Available: https://sid.ir/paper/378285/en

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