INVESTIGATION ON MANGANESE MINERALIZATION ASSOCIATED WITH OPHIOLITE COLORED MÉLANGES FROM BASHAGARD AND RUDAN AREAS, HORMOZGAN PROVINCE BY USING MINERALOGICAL AND GEOCHEMICAL DATA

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RAJABZADEH MOHAMMAD ALI; ZAMANSANI NAZANIN

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Journal: GEOCHEMISTRY Year:2014 | Volume:3 | Issue:1 Page(s): 411-418

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Title

INVESTIGATION ON MANGANESE MINERALIZATION ASSOCIATED WITH OPHIOLITE COLORED MÉLANGES FROM BASHAGARD AND RUDAN AREAS, HORMOZGAN PROVINCE BY USING MINERALOGICAL AND GEOCHEMICAL DATA

Author(s)

RAJABZADEH MOHAMMAD ALI | ZAMANSANI NAZANIN | Issue Writer Certificate

Keywords

MANGANESEQ2

OPHIOLITEQ2

GEOCHEMISTRYQ2

RUDANQ2

BASHAGARDQ2

Abstract

MANGANESE deposits occur in association with OPHIOLITE colored mélanges in BASHAGARD and RUDAN areas, Hormozgan Province. The ore deposits are divided in three types: a) syngenetic, b) diagenetic-metamorphic and c) epigenetic ores. Psylomelane and braunite are the primary MANGANESE minerals in syngenetic ores that were formed in sedimentary environment. The MANGANESE compounds are found in alternative bands with amorphous silica and quartz. The diagenetic ores are characterized by the presence of bixbyite that is the product of braunite-hematite interaction. Lens-shaped structures of the MANGANESE deposits hosted by siliceous rocks indicate the effects of diagenesis and metamorphism on primary banded structures. Metamorphism of greenschist, glaucophane schist and then amphibolite facies in some ores is indicated by the formation of MANGANESE silicates and hydrosilicates e.g. johansenite in BASHAGARD and tephroite in RUDAN. Progressive metamorphism in RUDAN area is evidenced by the presence of rhodochrosite that is absent from BASHAGARD ores. Pyrolusite is the main MANGANESE-bearing mineral from epigenetic ores that was formed by tardy hydrothermal process as open space fillings. High values of Mn/Fe (55.2), Si/Al (124.3), Zn (2-68ppm), ni (3-450ppm) along with negative anomaly of Ce, positive anomaly of Eu, low REEs in MANGANESE ores are consistent with hydrothermal origin and the formation of the primary MANGANESE compounds close to mid oceanic ridges above seafloor exhalation channels.

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APA: Copy

RAJABZADEH, MOHAMMAD ALI, & ZAMANSANI, NAZANIN. (2014). INVESTIGATION ON MANGANESE MINERALIZATION ASSOCIATED WITH OPHIOLITE COLORED MELANGES FROM BASHAGARD AND RUDAN AREAS, HORMOZGAN PROVINCE BY USING MINERALOGICAL AND GEOCHEMICAL DATA. GEOCHEMISTRY, 3(1), 411-418. SID. https://sid.ir/paper/230856/en

Vancouver: Copy

RAJABZADEH MOHAMMAD ALI, ZAMANSANI NAZANIN. INVESTIGATION ON MANGANESE MINERALIZATION ASSOCIATED WITH OPHIOLITE COLORED MELANGES FROM BASHAGARD AND RUDAN AREAS, HORMOZGAN PROVINCE BY USING MINERALOGICAL AND GEOCHEMICAL DATA. GEOCHEMISTRY[Internet]. 2014;3(1):411-418. Available from: https://sid.ir/paper/230856/en

IEEE: Copy

MOHAMMAD ALI RAJABZADEH, and NAZANIN ZAMANSANI, “INVESTIGATION ON MANGANESE MINERALIZATION ASSOCIATED WITH OPHIOLITE COLORED MELANGES FROM BASHAGARD AND RUDAN AREAS, HORMOZGAN PROVINCE BY USING MINERALOGICAL AND GEOCHEMICAL DATA,” GEOCHEMISTRY, vol. 3, no. 1, pp. 411–418, 2014, [Online]. Available: https://sid.ir/paper/230856/en

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