Saqez–Sardasht Goldfield, North Sanandaj-Sirjan Zone, Iran: A Tectono-Metallogenic Synthesis
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Saqez–Sardasht Goldfield, North Sanandaj-Sirjan Zone, Iran: A Tectono-Metallogenic Synthesis
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This research is a revision of the first author’s [EH] Ph.D. thesis dissertation at Golestan University. The authors give special thanks to Dr. Maryam Agh Atabay for her useful advice on microscopic studies and Foad Meysami for helping us to study the core samples. We sincerely thank the editors of Acta Geologica Sinica (English Edition) for improving our work with their thorough reviews and comments. Susan Turner (Brisbane) is also greatly thanked for her excellent assistance with the manuscript.

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    The Sanandaj–Sirjan Zone (SSZ), as the metamorphic-magmatic core of the Zagros Orogen in southwestern Iran, contains several styles of gold deposit of Phanerozoic age. The northern SSZ includes an ENE-trending goldfield belt. This area that encompasses the main orogenic gold deposits, e.g., Qolqoleh, Kervian, Qabaqhlujeh, and the Barika VMS goldfield, was chosen for this research to study the spatial and temporal relationships between gold mineralization and orogenic phases. Regarding the rock unit variations, metamorphism, magmatism and the settings of the structures, the study area is divided into four distinct tectonic blocks, separated by three main NW-trending thrust faults (suture lines) including, from NE to SW, the Tamugheh, the Ebrahim Hesar and the Zagros main thrust (ZMT) faults. The area between the Tamugheh and Ebrahim Hesar faults is a tectonized/uplifted basement of accretionary wedge-originated thrust slivers, hosting the above orogenic gold mineralizations. The other area between the here termed Ebrahim Hesar fault and the ZMT is an island-arc basin, proposed here as the Sardasht–Barika zone, including the only recognized massive sulfide gold district all over the SSZ, named Barika. The Barika goldfield was metamorphosed, deformed and enriched due to the island-arc collision to the Arabian continent, before the closure of Neotethys on the eastern flank.

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Erfan HAJI, Hojjatollah SAFARI, Behnam SHAFIEI BAFTI, Mehdi MOJALLAL.2020. Saqez–Sardasht Goldfield, North Sanandaj-Sirjan Zone, Iran: A Tectono-Metallogenic Synthesis[J]. ACTA GEOLOGICA SINICA(English edition),94(5):1693~1710

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  • 收稿日期:2019-11-30
  • 最后修改日期:2020-04-21
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  • 在线发布日期: 2020-10-26
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