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地质通报  2004 

青藏高原北缘早古生代板块构造演化和大陆深俯冲

, PP. 918-925

Keywords: 高压超高压变质带,榴辉岩,石榴橄榄岩,含柯石英片麻岩,北祁连山,柴达木盆地北缘

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Abstract:

青藏高原北缘北祁连山和柴达木盆地北缘分别发育有2类不同的高压和超高压变质带.北祁连山为典型的环太平洋型俯冲带,榴辉岩锆石的SHRIMP年龄为464Ma±5Ma.而柴北缘为典型的大陆俯冲型变质带,片麻岩锆石中的柯石英证明柴北缘是一超高压变质带.石榴橄榄岩中的超硅石榴子石和橄榄石中的钛铁矿等出溶反映其形成深度大于200km.柴北缘榴辉岩的原岩具有MORB和OIB的特征,并与北祁连山榴辉岩的年龄相同,代表早古生代祁连洋俯冲变质的时代.而含柯石英片麻岩的锆石和石榴橄榄岩超高压变质年龄均为423Ma,代表大陆地壳深俯冲发生的时间.北祁连山和柴北缘很可能是一个俯冲带从大洋俯冲到大陆碰撞的不同阶段的产物.

References

[1]  Rubbato D, Hermann J. Exhumation as fast as subduction? [J].Geology, 2001, 29:3~6.
[2]  Ernst W G. Subduction, ultrahigh-pressure metamorphism, and regurgitation of buoyant crustal slices-implications for arcs and continental growth [J]. Physics of the Earth and Planetary Interiors, 2001, 127:253~275.
[3]  Maruyama S, Liou J G, Terabayashi M. Blueschicts and eclogites of the world and their exhumation[J]. International Geology Review, 1996, 38:485~594.
[4]  李春昱,刘仰文,朱宝清,等.秦岭及祁连山构造发展史[A].见:国际交流地质学术论文集(1)[C].1978.174~187.
[5]  李春昱.中国板块构造轮廓[J].中国地质科学院院报,1980,2(1):11~22.
[6]  杨建军,朱红,邓晋福,等.柴达木北缘石榴石橄榄岩的发现及其意义[J].岩石矿物学杂志,1994,13(2):97~104.
[7]  杨经绥,许志琴,李海兵,等.我国西部柴北缘地区发现榴辉岩[J].科学通报,1998,43:1544~1548.
[8]  杨经绥,许志琴,宋述光,等.青海都兰榴辉岩的发现:试论我国中央造山带中的高压-超高压变质带的分布及构造意义[J].地质学报,2000,74(2):156~168.
[9]  杨经绥,宋述光,许志琴,等.柴北缘早古生代高压-超高压变质带中发现典型超高压矿物--柯石英[J].地质学报,2001,75(2):175~179.
[10]  宋述光,杨经绥.柴北缘都兰地区榴辉岩中透长石+石英包裹体:超高压变质作用的证据[J].地质学报,2001,75(2):180~185.
[11]  Song S G, Yang J S, Xu Z Q, et al. Metamorphic Evolution of the Coesite-bearing Ultrahigh-pressure terrane in the North Qaidam, northern Tibet, NW China[J]. Journal of Metamorphic Geology, 2003, 21:631~644.
[12]  Song S G, Yang J S, Liou J G, et al. Petrology, Geochemistry and isotopic ages of edogites in the Dulan UHPM terrane,the North Qaidam, NW China[J]. Lithos, 2003, 70:195~211.
[13]  Yang J S, Xu Z Q, Zhang J X, et al. Early Palaeozoic North Qaidam UHP metamorphic belt on the north-eastern Tibetan Plateau and a paired subduction model[J]. Terra Nova, 2002,14: 397~404.
[14]  Zhang J X, Zhang Z M, Xu Z Q, et al. Petrology and geochronology of eclogites from the western segment of the Altyn Tagh, Northwestern China[J]. Lithos, 2001, 56:187~206.
[15]  李惠民,陆松年,郑健康,等.阿尔金山东端花岗片麻岩中3.6Ga锆石的地质意义[J].矿物岩石地球化学通报,2001,20:259~262.
[16]  青海省地质矿产局.青海省区域地质志[J].地质出版社,1991.
[17]  Song S G. Metamorphic Geology of Blueschists, Eclogites and Ophiolites in the North Qilian Mountains [A]. In: 30th IGC Field Trip Guide T392 [C]. Beijing: Geological Publishing House, 1996.40.
[18]  Wan Y S, Xu Z Q, Yang J S, et al. Ages and compositions of the Precambrian high-grade basement of the Qilian terrane and its adjacent areas[J]. Acta Geologica Sinica, 2001, 75: 375~384.
[19]  张建新,孟繁聪,万渝生,等.柴达木盆地南缘金水口群的早古生代构造热事件:锆石U-Pb SHRIMP年龄证据[J].地质通报,2003,22:397~404.
[20]  Wu H Q, Feng Y M, Song S G. Metamorphism and deformation of blueschist belts and their tectonic implications, North Qilian Mountains, China[J]. Journal of Metamorphic Geology,1993, 11:523~536.
[21]  宋述光.北祁连山俯冲杂岩带的构造演化[J].地球科学进展,1997,12(4):351~365.
[22]  吴汉泉,冯益民,霍有光,等.北祁连山中段甘肃肃南奥陶系变质硬柱石蓝片岩的发现及其意义[J].地质论评,1990,(3):277-280.
[23]  Krogh-R avna E, Terry M P. Geothermobarometry of phengite-Kyanite-quartz/coesite eclogites[A]. In: Eleventh Annual V.3145[C]. LPI Contri Abstract# M. Goldschmidt Conference, bution No. 1088, Lunar and Planetary Institute, Houston (CDRom) ,2001.
[24]  Pearce J A, Cann J R. Tectonic setting of basic bolcanic rocks determined using trace element analysis [J]. Earth Planet. Sci.Lett., 1973,19:290~300.
[25]  Meschede M. A method of discriminating between different types of mid-ocean ridge basalts and continental tholeiites with the Nb-Zr-Y diagram[J]. Chemical Geology, 56:207~218.
[26]  宋述光,张立飞,Niu Y,等.北祁连山高压变质带榴辉岩的锆石SHRIMP定年及其构造意义[J].科学通报,2004,49(6):592~595.
[27]  Song S G, Zhang L F, Chen J, et al. Sodic amphibole exsolutions in garnet from garnet-peridotite, North Qaidam UHP belt, NW China: implications for ultradeep-origin and hydroxyl defects in upper mantle[J]. American Mineralogist, in revision.
[28]  Song S G, Zhang L F, Niu Y L, et al. Geochemical and Geochronological constraints on tectonic evolution of two types of subduction belts in the Northern Tibetan Plateau[J]. J.Petrol,in review.
[29]  Song S G, Zhang L F, Su L, et al. Geochronology of diamond-bearing zircons from garnet- peridotite in the North Qaidam UHPM belt, North Tibetan Plateau: A record of complex histories associated with continental collision [J]. Earth and Planetary Science Letters, in review.
[30]  陆松年.青藏高原北部前寒武纪地质初探[M].北京:地质出版社,2002.1~125.
[31]  Mueller S, Phillips R. On the initiation of subduction [J]. J.Geophys. Res., 1991, 96:651~665.
[32]  Bercovici D. The generation of plate tectonics from mantle convection [J]. Earth and Planetary Science Letters, 2003, 205:107~121.
[33]  张建新,许志琴,陈文,等.北祁连中段俯冲-增生杂岩/火山弧的时代探讨[J].岩石矿物学杂志,1997,16(2):112~119.
[34]  Ayers J C, Dunkle S, Gao S, et al. Constrints on timing of peak and retrograde metamorphism in the Dabie Shan ultrahighpressure metamorphic belt, east-central China, using U-Th-Pb dating of zircon and monazite [J]. Chemical Geology, 2002,186:315~331.
[35]  Hacker B R, Ratschbacher L, Webb L, et al. U-Pb ages constrain the architecture of the ultrahigh- pressure QinlingDabie orogen, China [J]. Earth and Planetary Science Letters,1998, 161:215~230.
[36]  Jahn B M. Sm-Nd isotope tracer of UHP metamorphic rocks:implications for continental subduction and collisional tectonics[J].International Geology Review, 1999,41:859~885.
[37]  崔智林,梅志超.祁连山中寒武世牙形石动物群、古生态和板块构造[J].古生物学报,1997,36:86~92.
[38]  Krogh E J, Carswell D A. HP and UHP eclogites and garnet peridotites in the Scandinavian Caledonides[A]. In: Coleman R G, Wang X (eds). Ultrahigh pressure metamorphism[C]. Cambridge: Cambridge University Press, 1995.244~298.
[39]  Massonne H J, O\'Brien P J. The Bohemian Massif and the NW Himalayas[A]. In: Carswell D A, Compagnoni R (eds).Ultrahigh Pressure Metamorphism, EMU Notes in Mineralogy,5 European Mineralogical Union[C]. Budapest: Eotvos University Press, 2003.145~187.
[40]  Chopin C. Coesite and pure pyrope in high-grade blueschists of the western Alps: a first record and some consequences[J]. Contributions to Mineralogy and Petrology, 1984, 86 :107~118.
[41]  Smith D C. Coesite in clinopyroxene in the Caledonides and its implications for geodynamics[J]. Nature, 1984, 310:641~644.
[42]  Sobolev N V, Shatsky V S. Diamond inclusions in garnets from metamorphic rocks[J]. Nature, 1990, 343:742~746.
[43]  Xu S, Okay A I, Ji S, et al. Diamond from the Dabie Shan metamorphic rocks and its implication for tectonic setting[J]. Science, 1992, 256:80~82.
[44]  Ye K, Cong B, Ye D. The possible subduction of continental material to depths greater than 200km[J]. Nature, 2000, 407:734~736.
[45]  Song S G, Zhang L F, Nin Y L. Ultra-deep origin of garnet peridotite from the North Qaidam ultrahigh- pressure belt,Northern Tibetan Plateau, NW China[J]. American Mineralogist,2004, 89:1330~1336.
[46]  Niu Y, O\'hara M J, Pearce J A. Initiation of subduction zones as a consequence of lateral compositional buoyancy contrast within the lithosphere: a petrological perspective[J]. Journal of Petrology, 2003, 44: 851~866.
[47]  肖序常,陈国铭,朱志直.祁连古蛇绿岩的地质构造意义[J].地质学报,1978,52:287~295.
[48]  肖序常,汤耀庆,高延林.再论青藏高原的板块构造[J].中国地质科学院院报,1986,(4):7~20.
[49]  Liou J G, Wang X M, Colemen R G. Blueschists in major suture zones of China[J]. Tectonics, 1989, 8(3) :609~619.

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