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Crustal composition model across the Bangong-Nujiang suture belt derived from INDEPTH III velocity data

文献类型：期刊论文

作者Zhang, Xi1; Brown, Dennis2; Deng, Yangfan1
刊名JOURNAL OF GEOPHYSICS AND ENGINEERING
出版日期2011-12-01
卷号8期号:4页码:549-559
ISSN号1742-2132
关键词crustal composition model Bangong-Nujiang suture belt INDEPTH III profile
DOI10.1088/1742-2132/8/4/007
文献子类Article
英文摘要The Bangong-Nujiang suture (BNS) belt separates the Lhasa and Qiangtang plates and, as indicated from previous teleseismic tomography, receiver functions, and active source seismic experiments, record the convergence and collision between the Indian and Eurasian plates. In this study, we construct a crustal composition model along the 400 km long NNW-SSE-oriented INDEPTH III profile by comparing the P-wave velocity (V-P), S-wave velocity (V-S), V-P/V-S ratio, density (rho) and Lame impedances (rho lambda, rho mu) to those determined by laboratory measurements of different crustal rock types. Corrections for pressure and temperature are performed in order to directly compare the physical properties determined from the INDEPTH III data with these laboratory measurements made at room temperature and variable pressures. Inversion of the INDEPTH III data set to rock compositions indicates that there are a number of differences in the crustal composition of the Lhasa and Qiangtang plates. For example, while the average composition of the upper crust in both plates is mainly characterized by granite-granodiorite and granite gneiss, these lithologies are much thicker beneath the Lhasa plate. Metagreywacke provides a best fit lithology for the upper crust beneath the BNS. The middle crust in both plates is somewhat similar, with diabase being the best fit for the Lhasa plate and basalt for the Qiangtang plate. The lower crust is quite distinctive for the two plates, with mafic garnet granulite, gabbronorite or troctolite providing a best fit for the Lhasa plate, whereas mafic garnet granulite, marble and anorthositic granulite being the best fit for the Qiangtang plate. While the difference in composition between the two plates may be affected by the different thermal regimes determined for them, it nevertheless appears that the BNS clearly forms a boundary between the physical properties and therefore the composition of the Lhasa and Qiangtang plates.
WOS关键词ANGLE SEISMIC DATA ; CONTINENTAL-CRUST ; TIBETAN PLATEAU ; SOUTHERN TIBET ; GEODYNAMIC SIGNIFICANCE ; TECTONIC ENVIRONMENT ; TETHYAN HIMALAYA ; WAVE VELOCITIES ; POISSONS RATIO ; HEAT-FLOW
WOS研究方向Geochemistry & Geophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000299309600007
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; 40721003 ; 40721003 ; 40721003 ; 40721003 ; 40830315 ; 40830315 ; 40830315 ; 40830315 ; 41021063 ; 41021063 ; 41021063 ; 41021063 ; 20930140 ; 20930140 ; 20930140 ; 20930140 ; SINOPROBE-02 ; SINOPROBE-02 ; SINOPROBE-02 ; SINOPROBE-02 ; 2008ZX05008-006) ; 2008ZX05008-006) ; 2008ZX05008-006) ; 2008ZX05008-006) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; 40721003 ; 40721003 ; 40721003 ; 40721003 ; 40830315 ; 40830315 ; 40830315 ; 40830315 ; 41021063 ; 41021063 ; 41021063 ; 41021063 ; 20930140 ; 20930140 ; 20930140 ; 20930140 ; SINOPROBE-02 ; SINOPROBE-02 ; SINOPROBE-02 ; SINOPROBE-02 ; 2008ZX05008-006) ; 2008ZX05008-006) ; 2008ZX05008-006) ; 2008ZX05008-006) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; 40721003 ; 40721003 ; 40721003 ; 40721003 ; 40830315 ; 40830315 ; 40830315 ; 40830315 ; 41021063 ; 41021063 ; 41021063 ; 41021063 ; 20930140 ; 20930140 ; 20930140 ; 20930140 ; SINOPROBE-02 ; SINOPROBE-02 ; SINOPROBE-02 ; SINOPROBE-02 ; 2008ZX05008-006) ; 2008ZX05008-006) ; 2008ZX05008-006) ; 2008ZX05008-006) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Ministry and the Land and Resources of China ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; Important National Science & Technology Specific Projects(KZCX2-YW-132 ; 40721003 ; 40721003 ; 40721003 ; 40721003 ; 40830315 ; 40830315 ; 40830315 ; 40830315 ; 41021063 ; 41021063 ; 41021063 ; 41021063 ; 20930140 ; 20930140 ; 20930140 ; 20930140 ; SINOPROBE-02 ; SINOPROBE-02 ; SINOPROBE-02 ; SINOPROBE-02 ; 2008ZX05008-006) ; 2008ZX05008-006) ; 2008ZX05008-006) ; 2008ZX05008-006)
源URL[http://ir.iggcas.ac.cn/handle/132A11/74166]  
专题中国科学院地质与地球物理研究所
通讯作者Zhang, Xi
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Inst Ciencias Tierra Jaume Almera, Barcelona 08028, Spain
推荐引用方式
GB/T 7714		 Zhang, Xi,Brown, Dennis,Deng, Yangfan. Crustal composition model across the Bangong-Nujiang suture belt derived from INDEPTH III velocity data[J]. JOURNAL OF GEOPHYSICS AND ENGINEERING,2011,8(4):549-559.
APA Zhang, Xi,Brown, Dennis,&Deng, Yangfan.(2011).Crustal composition model across the Bangong-Nujiang suture belt derived from INDEPTH III velocity data.JOURNAL OF GEOPHYSICS AND ENGINEERING,8(4),549-559.
MLA Zhang, Xi,et al."Crustal composition model across the Bangong-Nujiang suture belt derived from INDEPTH III velocity data".JOURNAL OF GEOPHYSICS AND ENGINEERING 8.4(2011):549-559.

入库方式： OAI收割

来源：地质与地球物理研究所

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