Mineralogy, texture and structure, and formation stages of the Golijeh intermediate-sulfidation epithermal deposit in Tarom subzone of western Alborz-Azerbaijan zone

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Khodabandelou zahra; GHADERI MAJID; RASTAD EBRAHIM

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Journal: ADVANCED APPLIED GEOLOGY Year:2018 | Volume:8 | Issue:2 (28) Page(s): 9-20

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Title

Mineralogy, texture and structure, and formation stages of the Golijeh intermediate-sulfidation epithermal deposit in Tarom subzone of western Alborz-Azerbaijan zone

Author(s)

Khodabandelou zahra | GHADERI MAJID | RASTAD EBRAHIM | Issue Writer Certificate

Keywords

MineralogyQ2

intermediate-sulfidation epithermalQ1

hydrothermal alterationQ2

Tarom subzoneQ1

base metal-silverQ1

Abstract

The Golijeh base metal-silver deposit in northeast Zanjan is located in the Tarom subzone of western Alborz – Azerbaijan structural zone. Lithologic units in the area are volcanic-pyroclastic rocks of Eocene age with a composition of crystalline tuff, lithic tuff, volcanic breccia and andesitic lavas of the Kordkand member of Karaj Formation. The subvolcanic body of gabbro-diorite porphyry with a post-Eocene age has intruded these units. Mineralization has occurred in the form of vein-veinlets in the andesitic unit and, to a lesser extent, in the pyroclastic units. The main ore minerals include chalcopyrite, pyrite, galena, and iron-poor sphalerite together with lesser amounts of Ag-bearing tetrahedrite-tennantite. The alteration at Golijeh can be distinguished as two groups of mineralization-related alteration (silica-sulfide, phyllic, silica-carbonate and carbonate-sulfide) and non-mineralization-related general alteration (propylitic and argillic). The major ore textures and structures are, respectively, vein-veinlet, brecciated, open space filling and replacement. The intrusion of the subvolcanic gabbro-diorite porphyry body and the occurrence of faults are the factors controlling mineralization in the area. Considering the main properties of mineralization at Golijeh including Mineralogy, metal content, vein-veinlet shape and the occurred alteration, the Golijeh mineralization can be classified as an intermediate-sulfidation epithermal deposit.

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APA: Copy

Khodabandelou, zahra, GHADERI, MAJID, & RASTAD, EBRAHIM. (2018). Mineralogy, texture and structure, and formation stages of the Golijeh intermediate-sulfidation epithermal deposit in Tarom subzone of western Alborz-Azerbaijan zone. ADVANCED APPLIED GEOLOGY, 8(2 (28) ), 9-20. SID. https://sid.ir/paper/365691/en

Vancouver: Copy

Khodabandelou zahra, GHADERI MAJID, RASTAD EBRAHIM. Mineralogy, texture and structure, and formation stages of the Golijeh intermediate-sulfidation epithermal deposit in Tarom subzone of western Alborz-Azerbaijan zone. ADVANCED APPLIED GEOLOGY[Internet]. 2018;8(2 (28) ):9-20. Available from: https://sid.ir/paper/365691/en

IEEE: Copy

zahra Khodabandelou, MAJID GHADERI, and EBRAHIM RASTAD, “Mineralogy, texture and structure, and formation stages of the Golijeh intermediate-sulfidation epithermal deposit in Tarom subzone of western Alborz-Azerbaijan zone,” ADVANCED APPLIED GEOLOGY, vol. 8, no. 2 (28) , pp. 9–20, 2018, [Online]. Available: https://sid.ir/paper/365691/en

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