GOLD MINERALIZATION IN GHOLGHOLEH AREA-SOUTHWEST OF SAQHEZ, IRAN

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SHAHROKH S.V.; KHAKZAD A.; RASA I.

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Journal: JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY) Year:2009 | Volume:19 | Issue:73 (GEOLOGY ISSUE) Page(s): 45-62

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Title

GOLD MINERALIZATION IN GHOLGHOLEH AREA-SOUTHWEST OF SAQHEZ, IRAN

Author(s)

SHAHROKH S.V. | KHAKZAD A. | RASA I. | Issue Writer Certificate

Keywords

GOLDQ3

MINERALIZATIONQ3

MINERALOGRAPHYQ3

FLUID INCLUSIONQ3

ALTERATIONQ3

GHOLGHOLEQ3

Abstract

Introduction: The GHOLGHOLEh area is located in 40 Km southwest of Saghez city and in northwest of Kordestan province. This area is situated in the Saghez 1:100,000 Geological map sheet. This mine is situated in northwest of Iran with upper Cretaceous age. From the viewpoint of general geology, this area is part of the Sanandaj-Sirjan metamorphosed zone.The case of study in the oldest rock-unit outcrops in the north of this area which belongs to Percambrian gneiss. Permian deposit mostly distributed in north, northeast and northwest of this area.Aim: The aim of this study is GOLD and its element MINERALIZATION in Qholqholeh area. This case can start to identification of MINERALIZATION in the studied area and their parts.Material and Methods: Course and model MINERALIZATION can be investigate to help of desert study, MINERALOGRAPHY, geochemical analysis, SEM, thin and polish section and FLUID INCLUSION study.Results: The major types of ALTERATION are composed of silicification, sulfidation, sericitization, chloritization and carbonatization. sercitization and choritization are the most, widespread ALTERATIONs, whereas, silisification and carbonatizatin are usually limited to the inner zone of altered shear zone and are dependant on the intensity of deformation. SEM and MINERALOGRAPHY studies indicate occurrence of sulfide mieralization especially Au sulfides which appeare in two generations. On the base of SEM studies, little Ag and As are observed. There is no GOLD in calcite. Primary mineral consist of: pyrite, marcazite and calchopyrite, and secondary minerals are pyrite, coveline and realgar. In addition, various pyrites occur as primary and secondary phase mineral. SEM study shows sense of GOLD in sulfide mineral. On the other hand, FLUID INCLUSION studies shows 350oC temperature in GOLD formation. Low salinity which shows probably that GOLD is not carried by chloridric complex in this stage. Daughter mineral in FLUID INCLUSION shown low Cl.Conclusion: Based on present evidence, and comparison with other GOLD type in the world, GOLD MINERALIZATION type is similar to GOLD orogenic type. Evidence like Parageneses, elements, gangue and ALTERATION around MINERALIZATION area all indicate the presence of monometal GOLD vein ore deposit of shear zone origin replaced by GOLD vein in cracks which are depended on this structure. Formation and occurrence GOLD field are influenced by structural properties and tectonic turnover and kind of hosted rock.

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APA: Copy

SHAHROKH, S.V., KHAKZAD, A., & RASA, I.. (2009). GOLD MINERALIZATION IN GHOLGHOLEH AREA-SOUTHWEST OF SAQHEZ, IRAN. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), 19(73 (GEOLOGY ISSUE)), 45-62. SID. https://sid.ir/paper/70297/en

Vancouver: Copy

SHAHROKH S.V., KHAKZAD A., RASA I.. GOLD MINERALIZATION IN GHOLGHOLEH AREA-SOUTHWEST OF SAQHEZ, IRAN. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)[Internet]. 2009;19(73 (GEOLOGY ISSUE)):45-62. Available from: https://sid.ir/paper/70297/en

IEEE: Copy

S.V. SHAHROKH, A. KHAKZAD, and I. RASA, “GOLD MINERALIZATION IN GHOLGHOLEH AREA-SOUTHWEST OF SAQHEZ, IRAN,” JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), vol. 19, no. 73 (GEOLOGY ISSUE), pp. 45–62, 2009, [Online]. Available: https://sid.ir/paper/70297/en

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