MINERALIZATION AND HYDROTHERMAL ALTERATION OF THE TAJROUD VEIN SYSTEM, SOUTH OF NEYSHABOUR

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ALIKHANI BANGHANI MOHSEN; SHAMANIAN GHOLAM HOSEIN; JAFARI ZANGLANLOU MOHAMMAD

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Journal: JOURNAL OF ECONOMIC GEOLOGY Year:2014 | Volume:5 | Issue:2 Page(s): 325-342

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Title

MINERALIZATION AND HYDROTHERMAL ALTERATION OF THE TAJROUD VEIN SYSTEM, SOUTH OF NEYSHABOUR

Author(s)

ALIKHANI BANGHANI MOHSEN | SHAMANIAN GHOLAM HOSEIN | JAFARI ZANGLANLOU MOHAMMAD | Issue Writer Certificate

Keywords

EPITHERMALQ2

HYDROTHERMAL ALTERATIONQ2

ALTERATION INDEXQ2

LOW-SULFIDATIONQ2

TAJROUDQ2

Abstract

The TAJROUD vein system is located 190 km southwest of Mashhad, and in the southern part of the Sabzevar zone. The vein host rocks consist of Eocene intermediate to silicic volcanic rocks. The mineralization occurs as open space filling, taking place as veins, veinlets and hydrothermal breccias. Based on field geology and textural evidence, three main stages of mineralization were identified. Stage I mainly contains quartz, pyrite, chalcopyrite and magnetite. Stage II, which has the same mineral assemblage as stage I, is the most important stage in terms of volume. Finally, stage III is characterized by repetitive quartz and calcite banding with negligible amounts of sulfide minerals. HYDROTHERMAL ALTERATION is developed around the veins and tends to be more intense in the vicinity of the veins. The plot of the Ishikawa ALTERATION INDEX (AI) versus chlorite carbonate-pyrite index (CCPI), known as alteration box plot, displays three main alteration trends. The HYDROTHERMAL ALTERATION assemblage of quartz, adularia, chlorite, illite, calcite, and epidote that envelops the TAJROUD vein system formed from the upwelling of near-neutral to weakly alkaline hydrothermal solutions. The mineralogic, alteration and geochemical characteristics of the studied area and comparison with EPITHERMAL ore deposits indicate that the TAJROUD vein system represents an EPITHERMAL system of low sulfidation type.

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APA: Copy

ALIKHANI BANGHANI, MOHSEN, SHAMANIAN, GHOLAM HOSEIN, & JAFARI ZANGLANLOU, MOHAMMAD. (2014). MINERALIZATION AND HYDROTHERMAL ALTERATION OF THE TAJROUD VEIN SYSTEM, SOUTH OF NEYSHABOUR. JOURNAL OF ECONOMIC GEOLOGY, 5(2), 325-342. SID. https://sid.ir/paper/180442/en

Vancouver: Copy

ALIKHANI BANGHANI MOHSEN, SHAMANIAN GHOLAM HOSEIN, JAFARI ZANGLANLOU MOHAMMAD. MINERALIZATION AND HYDROTHERMAL ALTERATION OF THE TAJROUD VEIN SYSTEM, SOUTH OF NEYSHABOUR. JOURNAL OF ECONOMIC GEOLOGY[Internet]. 2014;5(2):325-342. Available from: https://sid.ir/paper/180442/en

IEEE: Copy

MOHSEN ALIKHANI BANGHANI, GHOLAM HOSEIN SHAMANIAN, and MOHAMMAD JAFARI ZANGLANLOU, “MINERALIZATION AND HYDROTHERMAL ALTERATION OF THE TAJROUD VEIN SYSTEM, SOUTH OF NEYSHABOUR,” JOURNAL OF ECONOMIC GEOLOGY, vol. 5, no. 2, pp. 325–342, 2014, [Online]. Available: https://sid.ir/paper/180442/en

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