Mineralogical and geochemical characteristics of the Siahrudbar bauxite deposit, Golestan Province, north of Iran

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Kiaeshkevarian Maryam; CALAGARI ALI ASGHAR; ABEDINI ALI; SHAMANIAN GHOLAM HOSEIN

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Journal: Iranian Journal of Crystallography and Mineralogy Year:2019 | Volume:27 | Issue:3 Page(s): 507-520

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Title

Mineralogical and geochemical characteristics of the Siahrudbar bauxite deposit, Golestan Province, north of Iran

Author(s)

Kiaeshkevarian Maryam | CALAGARI ALI ASGHAR | ABEDINI ALI | SHAMANIAN GHOLAM HOSEIN | Issue Writer Certificate

Keywords

BauxiteQ2

SiahrudbarQ2

Golestan provinceQ2

trace and rare earth elementsQ2

Ce and Eu anomaliesQ2

Enrichment factorQ2

Abstract

The Siahrudbar deposit is located about 25 km southwest of Aliabad-Katool city in the Golestan province, north of Iran. This deposit lies between the Triassic limestone (Elika Formation) and Jurassic sandstone (Shemshak Formation). Mineralogical studies indicate the presence of major minerals such as diaspore, hematite, anatase, kaolinite, and chamosite accompanied by minor minerals such as boehmite, goethite, rutile, calcite, moscovite, clinoclar, quartz, and tridymite. Calculation of Enrichment factor showed that the bauxitization processes at Siahrudbar were accompanied by enrichment of elements such as Al, Fe, Ti, V, Cr, Co, Ni, Ga, Th, U, Y, Zr, Ta, Nb, Hf, and REEs. While elements such as Si, Mg, Na, K, P, Ba and Rb were leached out of the profile and suffered depletion. Futhermore, elements like Ca, Mn, Sr and Cs experienced both partial leaching and fixation. Based on the results of geochemical studies, changes in pH and Eh of the weathering solutions, adsorption, presence of organic matter, function of carbonate bed rock as a geochemical barrier, existence in resistant minerals, and fixation in neomorph mineral phases played crucial role in distribution of the trace and rare earth elements in the studied ores. Consideration of the correlation coefficients among elements demonstrated that the neomorph phosphate minerals can be conceived as the potential host of rare earth elements.

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APA: Copy

Kiaeshkevarian, Maryam, CALAGARI, ALI ASGHAR, ABEDINI, ALI, & SHAMANIAN, GHOLAM HOSEIN. (2019). Mineralogical and geochemical characteristics of the Siahrudbar bauxite deposit, Golestan Province, north of Iran. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 27(3 ), 507-520. SID. https://sid.ir/paper/3956/en

Vancouver: Copy

Kiaeshkevarian Maryam, CALAGARI ALI ASGHAR, ABEDINI ALI, SHAMANIAN GHOLAM HOSEIN. Mineralogical and geochemical characteristics of the Siahrudbar bauxite deposit, Golestan Province, north of Iran. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2019;27(3 ):507-520. Available from: https://sid.ir/paper/3956/en

IEEE: Copy

Maryam Kiaeshkevarian, ALI ASGHAR CALAGARI, ALI ABEDINI, and GHOLAM HOSEIN SHAMANIAN, “Mineralogical and geochemical characteristics of the Siahrudbar bauxite deposit, Golestan Province, north of Iran,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 27, no. 3 , pp. 507–520, 2019, [Online]. Available: https://sid.ir/paper/3956/en

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