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DELAMINATION/THINNING OF SUB-CONTINENTAL LITHOSPHERIC MANTLE UNDER EASTERN CHINA: THE ROLE OF WATER AND MULTIPLE SUBDUCTION

文献类型：期刊论文

作者Windley, B. F.1; Maruyama, S.2; Xiao, W. J.3
刊名AMERICAN JOURNAL OF SCIENCE
出版日期2010-12-01
卷号310期号:10页码:1250-1293
关键词Delamination Water In Subduction Permo-triassic Orogeny East Asia North China Craton
ISSN号0002-9599
DOI10.2475/10.2010.03
文献子类Article
英文摘要We present a new model to explain one of the biggest tectonic problemsof Earth Sciences today, namely, how and why did the Archean sub-continental lithospheric mantle under the Eastern Block of the North China Craton (NCC) delaminate or thin so drastically in the Cretaceous? The eastern NCC is surrounded by several sutures: to the north the south-dipping Solonker (Permo-Triassic formation age) and Mongol-Okhotsk suture (Jurassic formation age), to the south the north-dipping Dabie Shan and Song Ma sutures (Permo-Triassic formation age), and to the east the Pacific oceanic plate (200-100 Ma). Water was carried down under the eastern NCC by the hydrated Pacific plate for at least 100 Ma, and by oceanic plates subducted along the Solonker, Dabie Shan and Song Ma sutures for at least 250 Ma from the early Paleozoic to the Permo-Triassic, and by the Mongol-Okhotsk suture for at least 200 Ma until the Jurassic. Tomographic images show that the Pacific plate has ponded along the top of the mantle transition zone under the eastern NCC for over ca. 2000 km from the Japan trench. An addition of 0.2 weight percent H2O lowered the solidus temperature of hydrous mantle peridotite by 150 degrees C, which led to extensive melting in the hydrous mantle transition zone, and to the rise of hydrous plumes into the overlying crust-mantle. By the time of formation of the Permo-Triassic sutures, the hydration caused by subduction of four oceanic plates had caused major garnetization of the Archean crustal root of the eastern NCC, and post-collisional thrusting in the Jurassic led to major crust/mantle thickening and this triggered collapse of the hydro-weakened garnet-enriched crustal root. During the extensional Cretaceous period, abundant mafic, adakitic and granitic intrusions and extensive gold mineralization were emplaced and metamorphic core complexes and sedimentary and foreland basins formed in and around the eastern NCC. Part of the root was chemically transformed and replaced by upwelling fertile asthenospheric material, which fed the extrusion of extensive alkali flood basalts in the Cenozoic.
WOS关键词SINO-KOREAN CRATON ; METAMORPHIC CORE COMPLEX ; U-PB AGES ; NOMINALLY ANHYDROUS MINERALS ; ULTRAHIGH-PRESSURE OROGEN ; MESOZOIC ADAKITIC ROCKS ; LOWER CRUST BENEATH ; DEEP UPPER-MANTLE ; RE-OS EVIDENCE ; NORTH-CHINA
WOS研究方向Geology
语种英语
WOS记录号WOS:000290550800004
出版者AMER JOURNAL SCIENCE
资助机构Chinese National Basic Research 973 Program(2007CB411307) ; Chinese National Basic Research 973 Program(2007CB411307) ; Chinese Academy of Science(KZCX2-YW-Q04-08) ; Chinese Academy of Science(KZCX2-YW-Q04-08) ; National Science Foundation of China(40725009 ; National Science Foundation of China(40725009 ; 40523003) ; 40523003) ; Chinese National Basic Research 973 Program(2007CB411307) ; Chinese National Basic Research 973 Program(2007CB411307) ; Chinese Academy of Science(KZCX2-YW-Q04-08) ; Chinese Academy of Science(KZCX2-YW-Q04-08) ; National Science Foundation of China(40725009 ; National Science Foundation of China(40725009 ; 40523003) ; 40523003) ; Chinese National Basic Research 973 Program(2007CB411307) ; Chinese National Basic Research 973 Program(2007CB411307) ; Chinese Academy of Science(KZCX2-YW-Q04-08) ; Chinese Academy of Science(KZCX2-YW-Q04-08) ; National Science Foundation of China(40725009 ; National Science Foundation of China(40725009 ; 40523003) ; 40523003) ; Chinese National Basic Research 973 Program(2007CB411307) ; Chinese National Basic Research 973 Program(2007CB411307) ; Chinese Academy of Science(KZCX2-YW-Q04-08) ; Chinese Academy of Science(KZCX2-YW-Q04-08) ; National Science Foundation of China(40725009 ; National Science Foundation of China(40725009 ; 40523003) ; 40523003)
源URL[http://ir.iggcas.ac.cn/handle/132A11/73180]  
专题中国科学院地质与地球物理研究所
通讯作者Windley, B. F.
作者单位1.Univ Leicester, Dept Geol, Leicester LE1 7RH, Leics, England
2.Tokyo Inst Technol, Dept Earth & Planetary Sci, Tokyo 1528551, Japan
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosphere Tecton Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Windley, B. F.,Maruyama, S.,Xiao, W. J.. DELAMINATION/THINNING OF SUB-CONTINENTAL LITHOSPHERIC MANTLE UNDER EASTERN CHINA: THE ROLE OF WATER AND MULTIPLE SUBDUCTION[J]. AMERICAN JOURNAL OF SCIENCE,2010,310(10):1250-1293.
APA Windley, B. F.,Maruyama, S.,&Xiao, W. J..(2010).DELAMINATION/THINNING OF SUB-CONTINENTAL LITHOSPHERIC MANTLE UNDER EASTERN CHINA: THE ROLE OF WATER AND MULTIPLE SUBDUCTION.AMERICAN JOURNAL OF SCIENCE,310(10),1250-1293.
MLA Windley, B. F.,et al."DELAMINATION/THINNING OF SUB-CONTINENTAL LITHOSPHERIC MANTLE UNDER EASTERN CHINA: THE ROLE OF WATER AND MULTIPLE SUBDUCTION".AMERICAN JOURNAL OF SCIENCE 310.10(2010):1250-1293.

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来源：地质与地球物理研究所

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