Geology, mineralogy and fluid inclusion studies of the Abdossamadi barite deposit, Northeast Marivan

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TAJEDDIN H.A.; Hassan khanlou S.; MOHAJJEL M.

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Journal: GEOSCIENCES Year:2018 | Volume:27 | Issue:109 Page(s): 97-108

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Information Journal Paper

Title

Geology, mineralogy and fluid inclusion studies of the Abdossamadi barite deposit, Northeast Marivan

Author(s)

TAJEDDIN H.A. | Hassan khanlou S. | MOHAJJEL M. | Issue Writer Certificate

Keywords

Barite depositQ1

StratiformQ2

Fluid inclusionsQ1

KurokoQ1

AbdossamadiQ1

MarivanQ2

Abstract

Abdossamadi Barite deposit is located 80 km northeast of the city of Marivan in the northwestern part of the Sanandaj– Sirjan metamorphic zone. The rocks in the deposit area predominantly consist of Cretaceous volcanosedimentary sequences of metamorphosed andesite, calcareous shale and limestone, metamorphosed under greenschist facies grade. The deposit is composed of Stratiform ore and stringer zone. The Stratiform ore consists of a lens-like barite body associated with sulfide minerals which are underlain by metamorphosed (and altered) andesite (stringer zone) and was under the calcareous shale. Sulfide mineral assemblages of the deposit are simple and consist of pyrite, sphalerite, galena, chalcopyrite, and tetrahedrite-tennantite. Massive, bedded, colloform, framboidal and disseminated structures and textures are common in the Stratiform ore and indicate deposition of the deposit on the sea floor. The stringer zone that forming footwall of the Stratiform ore is altered andesite that cut by sulfide-bearing quartz-barite veins and veinlets. Fluid inclusion studies indicated that barite samples in the Stratiform ore homogenized between 115° and 215° C. Salinities of the Fluid inclusions show a range from 0. 21 to 5. 86 wt. % NaCl equivalent. Cooling of the ore-bearing hydrothermal fluid is an important process in the Stratiform ore deposition. This study shows that the Barite deposit is an immature Kuroko type massive sulfide deposit, which contains only black ore. The deposit underwent metamorphism and deformation after the ore deposition and therefore, shows significant changes in ore structures and textures.

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APA: Copy

TAJEDDIN, H.A., Hassan khanlou, S., & MOHAJJEL, M.. (2018). Geology, mineralogy and fluid inclusion studies of the Abdossamadi barite deposit, Northeast Marivan. GEOSCIENCES, 27(109 ), 97-108. SID. https://sid.ir/paper/32640/en

Vancouver: Copy

TAJEDDIN H.A., Hassan khanlou S., MOHAJJEL M.. Geology, mineralogy and fluid inclusion studies of the Abdossamadi barite deposit, Northeast Marivan. GEOSCIENCES[Internet]. 2018;27(109 ):97-108. Available from: https://sid.ir/paper/32640/en

IEEE: Copy

H.A. TAJEDDIN, S. Hassan khanlou, and M. MOHAJJEL, “Geology, mineralogy and fluid inclusion studies of the Abdossamadi barite deposit, Northeast Marivan,” GEOSCIENCES, vol. 27, no. 109 , pp. 97–108, 2018, [Online]. Available: https://sid.ir/paper/32640/en

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