The blueschits-bearing Qiangtang metamorphic belt (northern Tibet, China) as an in situ suture zone: Evidence from geochemical comparison with the Jinsa suture

Geology

Volumn 34, Issue 6, 2006, Pages 493-496

  Zhang, Kai Jun ^a,b   Zhang, Yu Xiu ^a,c   Li, Bing ^a,c   Zhu, Ying Tang ^d   Wei, Rong Zhu ^e  

^a GUANGZHOU INSTITUTE OF GEOCHEMISTRY   (China)

^b NANJING UNIVERSITY   (China)

^c UNIVERSITY OF CHINESE ACADEMY OF SCIENCES   (China)

^d CHENGDU UNIVERSITY OF TECHNOLOGY   (China)

^e Shanxi Institute of Geological Survey   (China)

Author keywords

Crustal structure; Geochemistry; Jinsa suture zone; M lange; Qiangtang; Tethys; Tibet

Indexed keywords

CRUSTAL STRUCTURE; GEOCHEMICAL DISTINCTION; IN SITU SUTURE ZONE; METABASALTS; METAMORPHIC BELT; METASILICICLASTIC ROCKS;

BASALT; METAMORPHIC ROCKS; SEDIMENTS; STRUCTURAL GEOLOGY; TECTONICS;

GEOCHEMISTRY;

BLUESCHIST; CRUSTAL STRUCTURE; GEOCHEMISTRY; METABASALT; METAMORPHIC ROCK; MID-OCEAN RIDGE BASALT; SUTURE ZONE; THOLEIITIC BASALT;

ASIA; CHINA; EURASIA; FAR EAST; QIANGTANG BASIN; XIZANG;

EID: 33745326596     PISSN: 00917613     EISSN: 00917613     Source Type: Journal    
DOI: 10.1130/G22404.1     Document Type: Article

References (32)

1. Anders, E., and Grevesse, N., 1989, Abundances of the elements: Meteoritic and solar: Geochimica et Cosmochimica Acta, v. 53, p. 197-214, doi: 10.1016/0016-7037(89)90286-X.
2. Bao, P.S., Xiao, X.C., Wang, J., Li, C., and Hu, K., 1999, The blueschist belt in the Shuanghu region, central-northern Tibet, and its tectonic implications: Acta Geologica Sinica, v. 73, p. 302-314.
3. Bass, M.N., Moberly, R., and Rhodes, J.M., 1973, Volcanic rocks cored in the central Pacific, Leg 17: Initial Reports of the Deep Sea Drilling Project, v. 17, p. 429-503.
4. Bhatia, M.R., and Crook, K.A.W., 1986, Trace element characteristics of greywackes and tectonic setting discrimination of siliciclastic basin: Contributions to Mineralogy and Petrology, v. 92, p. 181-193, doi: 10.1007/BF00375292.
5. Chung, S.L., Jahn, B.M., Wu, G.Y., Lo, C.H., and Cong, B.L., 1998, The Emeishan flood basalt in SW China: A mantle plume initiation model and its connection with continental breakup and mass extinction at the Permian-Triassic boundary: Geodynamics Series, v. 27, p. 47-58.
6. Deng, W.M., Yin, J., and Guo, Z., 1996, Basic-ultrabasic and volcanic rocks in Chagbu-Shuanghu area of northern Xizang (Tibet), China: Science in China: Series D, v. 39, p. 359-368.
7. Deng, X.G., Ding, L., Liu, X.H., Yin, A., Kapp, P., Murphy, M.A., and Manning, C.E., 2002, Geochemical characteristics of the blueschists and its tectonic significance in the central Qiangtang area, Tibet: Acta Petrologica Sinica, v. 18, p. 517-525.
8. Dewey, J.F., 1988, Extensional collapse of orogens: Tectonics, v. 9, p. 1123-1139.
9. Engel, A.E., Engel, S.E., and Havens, R.V., 1965, Chemical characteristics of oceanic basalts and the upper mantle: Geological Society of America Bulletin, v. 76, p. 719-734.
10. Gromet, L.P., Dymek, R.F., Haskin, L.A., and Korotev, R.L., 1984, The North American shale composite: Its compilation, major and trace element characteristics: Geochimica et Cosmochimica Acta, v. 48, p. 2469-2482, doi: 10.1016/0016-7037 (84)90298-9.
11. GSC (Geological Survey of China), and CIGMR (Chengdu Institute of Geology and Mineral Resources), 2004, Geological map of Tibet (China) and adjacent areas (1:1,500,000) with an explanation: Chengdu, Chengdu Cartographic Press, 133 p.
12. Hacker, B., Gnos, E., Ratschbacher, L., Grove, M., McWilliams, M., Sobolev, S., Jiang, W, and Wu, Z., 2000, Hot and dry deep crustal xenoliths from Tibet: Science, v. 287, p. 2463-2466, doi: 10.1126/ science.287.5462.2463.
13. Kapp, P., Yin, A., Manning, C.E., Murphy, M., Harrison, T.M., Spurlin, M., Ding, L., Deng, X.G., and Wu, C.M., 2000, Blueschist-bearing metamorphic core complexes in the Qiangtang block reveal deep crustal structure of northern Tibet: Geology, v. 28, p. 19-22, doi: 10.1130/ 0091-7613(2000)028 <0019:BBMCCI>2.3.CO;2.
14. Kapp, P., Yin, A., Manning, C.E., Harrison, T.M., and Taylor, M.H., 2003, Tectonic evolution of the early Mesozoic blueschist-bearing metamorphic belt, central Tibet: Tectonics, v. 24, 1043, doi: 1029/ 2002TC001383.
15. Li, C., Cheng, L.R., Hu, K., Yang, Z.R., and Hong, Y.R., 1995, Study on the paleo-Tethys suture zone of Longmu Co-Shuanghu, Tibet: Beijing, Geological Publishing House, 131 p.
16. Li, C., Li, Y.T., Lin, Y.X., Wang, T.W., Yang, D.M., and He, Z.H., 2002, Sm-Nd dating of the protoliths of blueschist in the Shuanghu area, Tibet: Geology in China, v. 29, p. 355-360.
17. Li, Y.J., Wu, H.R., Li, H.S., and Sun, D.L., 1997, Discovery of radiolarians in the Amugang and Chasang Groups and Lugu Formation in northern Tibet and discussion on some problems: Geological Review, v. 43, p. 250-257.
18. McDonough, W.F., and Sun, S.S., 1995, The composition of the Earth: Chemical Geology, v. 120, p. 223-253, doi: 10.1016/0009-2541(94)00140-4.
19. Meschede, M., 1986, A method of discriminating between different types of mid-ocean ridge basalts and continental tholeiites with the Nb-Zr-Y diagram: Chemical Geology, v. 56, p. 207-218, doi: 10.1016/ 0009-2541(86)90004-5.
20. Mo, X.X., Lu, F.X., and Shen, S.Y., 1993, Volcanism and mineralization of the three-river Tethys (Tibet, western China): Beijing, Geological Publishing House, 234 p.
21. Myrow, P.M., Hughes, N.C., Paulsen, T.S., Williams, I.S., Parcha, S.K., Thompson, K.R., Bowring, S.A., Peng, S.C., and Ahluwalia, A.D., 2003, Integrated tectonostratigraphic analysis of the Himalaya and implications to its tectonic reconstruction: Earth and Planetary Science Letters, v. 212, p. 433-441, doi: 10.1016/S0012-821X(03)00280-2.
22. Pearce, J.A., and Deng, W.M., 1988, The ophiolites of the Tibetan Geotraverses, Lhasa to Golmud (1985) and Lhasa to Kathmandu (1986): Royal Society of London Philosophical Transactions, ser. A, v. 327, p. 215-238.
23. Pearce, J.A., and Norry, M.J., 1979, Petrogenetic implications of Ti, Zr, Y, and Nb variations in volcanic rocks: Contributions to Mineralogy and Petrology, v. 69, p. 33-47, doi: 10.1007/BF00375192.
24. Shervais, J.W., 1982, Ti-V plots and the petrogenesis of modern and ophiolitic lavas: Earth and Planetary Science Letters, v. 59, p. 101-118, doi: 10.1016/0012-821X(82)90120-0.
25. Sun, S.S., Nesbitt, R.W., and Sharaskin, A.Y., 1979, Geochemical characteristics of mid-ocean basalts: Earth and Planetary Science Letters, v. 44, p. 119-138, doi: 10.1016/0012-821X(79)90013-X.
26. Wang, C.S., Hu, C.Z., and Wu, R.Z., 1987, Discovery and geologic significance of the Casang-Cabu rift in northern Xizang: Bulletin of Chengdu College of Geology, v. 14, p. 33-46.
27. Winchester, J.A., and Floyd, P.A., 1976, Geochemical magma type discrimination: Application to altered and metamorphosed basic igneous rocks: Earth and Planetary Science Letters, v. 28, p. 459-469, doi: 10.1016/0012-821X(76)90207-7.
28. Xia, B.D., Li, C., and Ye, H.F., 2001, Blueschist-bearing metamorphic core complexes in the Qiangtang terrain reveal deep crustal structure of northern Tibet: Comment: Geology, v. 29, p. 663, doi: 10.1130/ 0091-7613(2001)029<0663:BBM CCI>2.0.CO;2.
29. Xu, J.F., and Castillo, P.R., 2004, Geochemical and Nd-Ph isotopic characteristics of the Tethyan asthenosphere: Implications for the origin of the Indian Ocean mantle domain: Tectonophysics, v. 393, p. 9-27, doi: 10.1016/j.tecto.2004.07.028.
30. Yin, A., and Harrison, T.M., 2000, Geologic evolution of the Himalayan-Tibetan orogen: Annual Review of Earth and Planetary Sciences, v. 28, p. 211-280, doi: 10.1146/annurev.earth.28.1.211.
31. Zhang, K.J., 2001, Blueschist-bearing metamorphic core complexes in the Qiangtang terrain reveal deep crustal structure of northern Tibet: Comment: Geology, v. 29, p. 90, doi: 10.1130/ 00917613(2001)029<0090:BBMCCI>2.0.CO;2.
32. Zhang, K.J., 2004, Secular geochemical variations of the Lower Cretaceous siliciclastic rocks from central Tibet (China) indicate a tectonic transition from continental collision to back-arc rifting: Earth and Planetary Science Letters, v. 229, p. 73-89, doi: 10.1016/ j.epsl.2004.10.030.