Akhtarchi deposit with carbonated host: geology, mineralography and electron microprobe (EPMA) studies

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Naziri M.A.; RASSA I.; YAZDI M.

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Paper Information

Journal: Iranian Journal of Geology Year:2021 | Volume:15 | Issue:57 Page(s): 107-121

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Information Journal Paper

Title

Akhtarchi deposit with carbonated host: geology, mineralography and electron microprobe (EPMA) studies

Author(s)

Naziri M.A. | RASSA I. | YAZDI M. | Issue Writer Certificate

Keywords

AkhtarchiQ1

Sanandaj-Sirjan zoneQ1

Carlin typeQ1

Carbonated host rockQ1

GoldQ2

Abstract

The Akhtarchi Gold deposit with carbonate host is located in southeast Mahallat, Markazi province, and Sanandaj-Sirjan structural zone. Host rock includes impure carbonated rocks with Permian age which is affected by dissolution (decarbonatization) and brecciation in mineralized zones. Mineralization is controlled structurally and there is spatial relation between faults and mineralization. The most important alterations include silicification, hematization, dolomitization, decarbonatization and argillic. Gold occurrence is seen as three forms, associated with iron oxides, siliceous (jasperoid) and placer. There are five types of mineralized veins in the area including Gold bearing iron oxide, Gold bearing siliceous-iron oxide, copper bearing siliceous-iron oxide, siliceous-pyritic and milky quartz veins. Microscopic studies and microprobe analyses show that Gold exists in this deposit as microscopic grains inside iron oxides and as submicroscopic in iron oxides, iron-manganese oxides, carbonates, copper bearing secondary minerals and sulfides. Based on geological, structural, alteration, mineralography and microprobe studies, properties of Akhtarchi deposit have the most similarity with Carlin type Gold deposit.

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APA: Copy

Naziri, M.A., RASSA, I., & YAZDI, M.. (2021). Akhtarchi deposit with carbonated host: geology, mineralography and electron microprobe (EPMA) studies. IRANIAN JOURNAL OF GEOLOGY, 15(57 ), 107-121. SID. https://sid.ir/paper/399524/en

Vancouver: Copy

Naziri M.A., RASSA I., YAZDI M.. Akhtarchi deposit with carbonated host: geology, mineralography and electron microprobe (EPMA) studies. IRANIAN JOURNAL OF GEOLOGY[Internet]. 2021;15(57 ):107-121. Available from: https://sid.ir/paper/399524/en

IEEE: Copy

M.A. Naziri, I. RASSA, and M. YAZDI, “Akhtarchi deposit with carbonated host: geology, mineralography and electron microprobe (EPMA) studies,” IRANIAN JOURNAL OF GEOLOGY, vol. 15, no. 57 , pp. 107–121, 2021, [Online]. Available: https://sid.ir/paper/399524/en

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