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End-Permian to mid-Triassic termination of the accretionary processes of the southern Altaids: implications for the geodynamic evolution, Phanerozoic continental growth, and metallogeny of Central Asia

文献类型：期刊论文

作者Xiao, W. J.1; Windley, B. F.2; Huang, B. C.1; Han, C. M.1; Yuan, C.3; Chen, H. L.4; Sun, M.5; Sun, S.1; Li, J. L.1
刊名INTERNATIONAL JOURNAL OF EARTH SCIENCES
出版日期2009-09-01
卷号98期号:6页码:1189-1217
关键词End-Permian to mid-Triassic termination Accretionary process Southern Altaids Geodynamic evolution Continental growth Metallogeny Central Asia
ISSN号1437-3254
DOI10.1007/s00531-008-0407-z
文献子类Review
英文摘要The Altaids is one of the largest accretionary orogenic collages in the world with the highest rate of Phanerozoic continental growth and significant metallogenic importance. It is widely accepted that subduction-related orogenesis of the Altaids started in the late Precambrian and gradually migrated southward (present coordinates). However, it is uncertain when and how the building of the Altaids was finally completed. Based on structural geology, geochemical, geochronological, and paleomagnetic data, this paper presents late Paleozoic to early Mesozoic accretionary tectonics of two key areas, North Xinjiang in the west and Inner Mongolia in the east, together with neighboring Mongolia. The late Paleozoic tectonics of North Xinjiang and adjacent areas were characterized by continuous southward accretion along the wide southern active margin of Siberia and its final amalgamation with the passive margin of Tarim, which may have lasted to the end-Permian to early/mid-Triassic. In contrast, in Inner Mongolia and adjacent areas two wide accretionary wedges developed along the southern active margin of Siberia and the northern active margin of the North China craton, which may have lasted to the mid-Triassic. The final products of the long-lived accretionary processes in the southern Altaids include late Paleozoic to Permian arcs, late Paleozoic to mid-Triassic accretionary wedges composed of radiolarian cherts, pillow lavas, and ophiolitic fragments, and high-pressure/ultrahigh-pressure metamorphic rocks. Permian Alaskan-type zoned mafic-ultramafic complexes intruded along some major faults of the Tien Shan. We define a new Tarim suture zone immediately north of the Tarim craton that is probably now buried below the Tien Shan as a result of northward subduction of the Tarim block in the Cenozoic. The docking of the Tarim and North China cratons against the southern active margin of Siberia in the end-Permian to mid-Triassic resulted in the final closure of the Paleoasian Ocean and terminated the accretionary orogenesis of the southern Altaids in this part of Central Asia. This complex geodynamic evolution led to formation of giant metal deposits in Central Asia and to substantial continental growth.
WOS关键词SHRIMP U-PB ; NORTH CHINA BLOCK ; CARBONIFEROUS VOLCANIC-ROCKS ; MAFIC-ULTRAMAFIC INTRUSIONS ; BAYANKHONGOR OPHIOLITE ZONE ; TIANSHAN OROGENIC BELT ; WEST JUNGGAR REGION ; TIEN-SHAN-RANGE ; EAST GOBI BASIN ; A-TYPE GRANITES
WOS研究方向Geology
语种英语
WOS记录号WOS:000269376400002
出版者SPRINGER
资助机构Major State Basic Research Development Program of China(2007CB411307) ; Major State Basic Research Development Program of China(2007CB411307) ; National 305 Project(2007BAB25B04) ; National 305 Project(2007BAB25B04) ; National Science Fund for Distinguished Young Scholars(40725009) ; National Science Fund for Distinguished Young Scholars(40725009) ; Major State Basic Research Development Program of China(2007CB411307) ; Major State Basic Research Development Program of China(2007CB411307) ; National 305 Project(2007BAB25B04) ; National 305 Project(2007BAB25B04) ; National Science Fund for Distinguished Young Scholars(40725009) ; National Science Fund for Distinguished Young Scholars(40725009) ; Major State Basic Research Development Program of China(2007CB411307) ; Major State Basic Research Development Program of China(2007CB411307) ; National 305 Project(2007BAB25B04) ; National 305 Project(2007BAB25B04) ; National Science Fund for Distinguished Young Scholars(40725009) ; National Science Fund for Distinguished Young Scholars(40725009) ; Major State Basic Research Development Program of China(2007CB411307) ; Major State Basic Research Development Program of China(2007CB411307) ; National 305 Project(2007BAB25B04) ; National 305 Project(2007BAB25B04) ; National Science Fund for Distinguished Young Scholars(40725009) ; National Science Fund for Distinguished Young Scholars(40725009)
源URL[http://ir.iggcas.ac.cn/handle/132A11/70360]  
专题中国科学院地质与地球物理研究所
通讯作者Xiao, W. J.
作者单位1.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Univ Leicester, Dept Geol, Leicester LE1 7RH, Leics, England
3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
4.Zhejiang Univ, Sch Earth Sci, Hangzhou 310027, Peoples R China
5.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China
推荐引用方式
GB/T 7714		 Xiao, W. J.,Windley, B. F.,Huang, B. C.,et al. End-Permian to mid-Triassic termination of the accretionary processes of the southern Altaids: implications for the geodynamic evolution, Phanerozoic continental growth, and metallogeny of Central Asia[J]. INTERNATIONAL JOURNAL OF EARTH SCIENCES,2009,98(6):1189-1217.
APA Xiao, W. J..,Windley, B. F..,Huang, B. C..,Han, C. M..,Yuan, C..,...&Li, J. L..(2009).End-Permian to mid-Triassic termination of the accretionary processes of the southern Altaids: implications for the geodynamic evolution, Phanerozoic continental growth, and metallogeny of Central Asia.INTERNATIONAL JOURNAL OF EARTH SCIENCES,98(6),1189-1217.
MLA Xiao, W. J.,et al."End-Permian to mid-Triassic termination of the accretionary processes of the southern Altaids: implications for the geodynamic evolution, Phanerozoic continental growth, and metallogeny of Central Asia".INTERNATIONAL JOURNAL OF EARTH SCIENCES 98.6(2009):1189-1217.

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来源：地质与地球物理研究所

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