Deformational History of the Kanguer Subduction Complex in the Eastern Tianshan (NW China): Implications for Paleozoic-Triassic Multiple Accretionary Tectonics of the Southern Altaids
文献类型：期刊论文
| 作者 | Mao, Qigui2,3,4; Xiao, Wenjiao2,4,5,6; Buckman, Solomon1; Huang, Peng2,4,5; Ao, Songjian4,5; Song, Dongfang4,5; Zhang, Ji'en4,5; Sang, Miao2,4; Tan, Zhou2,4; Wang, Hao2,4 |
| 刊名 | TECTONICS
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 41期号:11页码:31 |
| ISSN号 | 0278-7407 |
| 关键词 | Kanguer Subduction Complex Qiugemingtash Shear Zone folds Permian transtension orocline Eastern Tianshan |
| DOI | 10.1029/2022TC007527 |
| 英文摘要 | The Kanguer Subduction Complex in the Eastern Tianshan is critical to understanding the tectonic evolution of the southern Altaids as it marks the terminal suture along which the Paleo-Asian Ocean was consumed. However, the nature and timing of this final collision, as well as the mechanism of shearing and related magmatism, remain enigmatic. The Kanguer Subduction Complex demonstrates obvious sinistral transtensional and dextral compressional deformation in different tectonic events along the Qiugemingtash Shear Zone in Huangshan area. Three sets of asymmetric plunging folds (e.g., basin-like, S-shaped and Z(W)-shaped) were recognized in the sedimentary rocks. Locally, the folds are offset by dextral strike-slip faults, indicating that they were formed by dextral shearing. The Huangshandong mafic-ultramafic complex experienced brittle dextral shearing partitioned around the margins of the intrusion. Detrital zircon U-Pb dates for deformed sedimentary rocks have maximum deposit ages (MDA) of 251 and 290 Ma, respectively, and syn-compressional shearing conjugate granitic dikes that intruded into the deformed sedimentary rocks yield crystallization ages of 249 and 245 Ma, respectively. These ages reveal that the extensional and/or transtensional sedimentary basins formed between ca. 290-249 Ma, and dextral compressional shearing started ca. 249 Ma. Combining deformed units with transtensional basins and mantle-derived magmatism, we suggest that ocean-ridge subduction induced a sinistral transtensional regime in a forearc/intraarc setting related to the Tuva-Mongol Orocline in the Permian. The oblique convergence between the Tarim Craton and southern Altaids triggered the Qiugemingtash dextral compressional shearing in the Early Triassic (ca. 249 Ma). |
| WOS关键词 | MAFIC-ULTRAMAFIC INTRUSIONS ; U-PB CHRONOLOGY ; MO DEPOSIT ; CENTRAL-ASIA ; NORTHWEST CHINA ; OROGENIC BELT ; GOLD DEPOSIT ; HF ISOTOPES ; GEOCHEMISTRY ; EVOLUTION |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:000888585600001 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/107656]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Mao, Qigui; Xiao, Wenjiao; Tan, Zhou |
| 作者单位 | 1.Univ Wollongong, Sch Earth & Environm Sci, Wollongong, NSW, Australia 2.Chinese Acad Sci, Xinjiang Res Ctr Mineral Resources, Xinjiang Inst Ecol & Geog, Urumqi, Peoples R China 3.Redrock Min CO Ltd, Hami, Peoples R China 4.Natl Key Lab Ecol Secur & Resource Utilizat Arid, Urumqi, Peoples R China 5.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing, Peoples R China 6.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mao, Qigui,Xiao, Wenjiao,Buckman, Solomon,et al. Deformational History of the Kanguer Subduction Complex in the Eastern Tianshan (NW China): Implications for Paleozoic-Triassic Multiple Accretionary Tectonics of the Southern Altaids[J]. TECTONICS,2022,41(11):31. |
| APA | Mao, Qigui.,Xiao, Wenjiao.,Buckman, Solomon.,Huang, Peng.,Ao, Songjian.,...&Li, Rui.(2022).Deformational History of the Kanguer Subduction Complex in the Eastern Tianshan (NW China): Implications for Paleozoic-Triassic Multiple Accretionary Tectonics of the Southern Altaids.TECTONICS,41(11),31. |
| MLA | Mao, Qigui,et al."Deformational History of the Kanguer Subduction Complex in the Eastern Tianshan (NW China): Implications for Paleozoic-Triassic Multiple Accretionary Tectonics of the Southern Altaids".TECTONICS 41.11(2022):31. |
入库方式： OAI收割
来源：地质与地球物理研究所
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