Indosinian collision-orogenic system of Chinese continent and its orogenic mechanism
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摘要:
古特提斯洋盆的闭合导致了诸多的微块体于晚三叠世至中侏罗世(T3-J2)碰撞，形成东亚大陆南部巨型印支造山系。中国大陆的印支碰撞造山系呈现巨大的 “T"型复合造山系，位于西部的印支造山系(巴颜喀拉-北羌塘-南羌塘-拉萨印支造山带) 形成于“多洋盆、多地体、多岛弧" 的古特提斯的构造背景，伴随古特提斯多洋盆的俯冲和闭合，产生广泛的岛弧、增生楔和高压变质带的增生造山，以及多地体的碰撞造山作用，形成大型造山拼贴体，伴随以紧闭同劈理褶皱和逆冲、走滑断裂为特征的地壳变形。而位于中东部的印支造山系为北中国与扬子陆块之间的直接碰撞的产物，在扬子被动陆缘之上形成的松潘-甘孜、南秦岭造山带显示深层滑脱为造山机制的大规模地壳上部剪切应变；由于扬子地壳印支期深俯冲(＞100km)和山根挤出机制，造成大别-苏鲁造山带中大规模高压-超高压变质带的出露。
Abstract:The closure of the large Paleo-Tethyan Ocean at the T3-J2 period induced collisions of many microterrains and formed huge Paleo-Tethys orogenic belts in South Asia, also known as Indosinian orogenic belts. The Indosinian orogenic belts of the Chinese continent and adjacent areas shows a "T"-shaped composite orogeny. Studies have shown that the western Indosinian "Bayan Har-North Qiangtang-South Qiangtang-Lasha" orogenic belts were formed in the Paleo-Tethys setting of multi-ocean basins, multi-terrains and multi-island arcs". Subduction and closure of Paleo-Tethyan ocean basins yielded a wide accretional orogeny in island arcs, accretionary wedges and high-pressure metamorphic belts, as well as large-scale orogenic collage due to multi-terrains collision orogeny charecterized by crustal deformations of syn-cleavage folds, thrusts and strike-slip faults. The eastern Indosinian orogenic system is the direct collision result between the North China and Yangtze blocks. The Songpan-Ganzi and South Qinling orogenic belts located above the Yangtze passive margin show large-scale deep decollement orogenic mechanism between the Upper Proterozoic metamorphic basement and Paleozoic-Triassic covers, as well as intensive shear strain of the Yangtze upper crust. The deep subduction (＞100km) of the Yangtze crust and root extrusion mechanism yielded large-scale high pressure/ultra-high pressure metamorphic belts exposed in the Dabie-Sulu orogenic belt.
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Key words:
- Indosinian /
- Collision-orogenic system /
- Mechanism
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图 1
中国大陆及邻区印支碰撞造山系位置图
Figure 1.
Distribution map of the Indosinian collision-orogenic system of Chinese continent and its adjacent areas
图 2
造山类型图示(据Cawood and Krǒner, 2009, 略加修改)
Figure 2.
Diagram showing orogenic type (modified after Cawood and Krǒner, 2009)
图 3
松潘-甘孜造山带构造图及剖面图
Figure 3.
Simplified structural map and cross-section of the Songpan-Garze orogenic belt
图 5
南秦岭印支造山带构造平面图及剖面图
Figure 5.
Simplified structural tectonic map and cross-section of the South Qinling Indosinian orogenic belt
图 6
苏鲁高压/超高压变质带形成与折返的地壳挤出的多隧道流模式(据Xu et al., 2009)
Figure 6.
Diagrams showing the multiple-channel flow of crustal extrusion for the formation and exhumation of the Sulu HP-UHP metamorphic belt (after Xu et al., 2009)
图 7
阿尼玛卿古特提斯缝合带北侧主动陆缘印支变形构造剖面(据1︰25万八宿幅地质图改编)
Figure 7.
The Indosinian deformation cross-section in the active margin at the northern side of the Anyemaqen Paleo-Tethys suture
图 8
北羌塘-南羌塘-北拉萨复合造山的构造剖面
Figure 8.
Structural cross-section of the North Qiangtang-South Qiangtang-North Lhasa orogenic composite belts
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Calassou S. 1994. Etude tectonique d'une chane de décollement.(a) Tectonique triasique et tertiaire de lachane de Songpan-Garzê.(b) Géométrie et cinématique des deformations dans les prismes d'accrétion sédimentaires: Modélisation analogque. Ph. D. Dissertation. Montpellier: Université Montpellier 2
Carswell DA, Wilson RN and Zhai M. 2000. Metamorphic evolution, mineral chemistry and thermobarometry of schists and orthogneisses hosting ultra-high pressure eclogites in the Dabieshan of central China. Lithos, 52(1-4): 121-155
Cawood PA and Krǒner A. 2009. Earth accretionary systems in space and time. Spec. Publ. Geol. Soc. Lond., 318: 1-36
Chavagnac V and Jahn BM. 1996. Coesite-bearing eclogites from the Bixiling Complex, Dabie Mountains, China: Sm-Nd ages, geochemical characteristics and tectonic implications. Chemical Geology, 133(1-4): 29-51
Chen SY, Yang JS, Luo LQ et al. 2007. MORB-type eclogites in the Lhasa block, Tibet, China: Petrochemical evidence. Geological Bulletin of China, 26(10): 1327-1339(in Chinese with English abstract)
Chen SY. 2010. The development of Sumdo suture in the Lhasa block, Tibet. Ph. D. Dissertation. Beijing: Chinese Academy of Geological Sciences(in Chinese with English summary)
Collins AS, Fitzsimons ICW, Hulscher B and Razakamanana T. 2003. Structure of the eastern margin of the East African Orogen in central Madagascar. Precambrian Research, 123: 111-133
Cong BL, Zhai MG, Carswell DA, Wilson RN, Wang QC, Zhao ZY and Windley BF. 1995. Petrogenesis of ultrahigh-pressure rocks and their country rocks at Shuanghe in Dabieshan, Central China. European Journal of Mineralogy, 7(1): 119-138
Fromaget J. 1927. Etudes géologiques sur le nord de l'Indochine centrale. Bull. Fr. Serv. Géol. Indochine, 16(2): 141-164
Fromaget J. 1934. Observations et reflexions sur la geologie stratigraphique et structutale de L'Indochine. Bull. Soc. Géol. Fr., 4(5) : 101-164
Fromaget J. 1952. Etudes geologiques sur le Nord-Ouest du Tonkin et le Nord du Haut-Laos. 2ème et 3ème parties. Bull. Serv. Geol. Indoch., 29(6): 198
Helwig JE. 1974. Eugeosynclinal gasement and a college concept of orogenic belts. Soc. Econ. Paleontol. Mineral.,19: 359-376
Hou QL, Wu YD, Wu FY, Zhai MG, Guo JH and Li Z. 2008. Possible tectonic manifestations of the Dabie-Sulu orogenic belt on the Korean Peninsula. Geological Bulletin of China, 27(10): 1659-1666(in Chinese with English abstract)
Huang TK. 1945. On Major Tectonic Forms of China. Geol. Memoirs of National Geological Survey of China Ser. A, No.20, 212 (in Chinese)
Hutchison CS. 1989. Geological evolution of South-East Asia. Oxford Monographs on Geology and Geophysics, Vol. 13. Oxford, UK: Clarendon Press, 368
Jahn BM. 1998. Geochemical and isotopic characteristics of UHP eclogites and ultramafic rocks of the Dabie orogen: Implications for continental subduction and collisional tectonics China. Geology, 17(12): 1085-1088
Jiang CF, Yang JS, Feng BG, Zhu ZZ, Zhao M and Chai YC. 1992. Opening-closing Tectonics of the Kunlun Mountains. Beijing: Geological Publishing House, 25-234(in Chinese)
Jiang YS, Zhou YY, Wang MG, Xie YX, Li JB and Peng B. 2003. Characteristics and geological significance of Quaternary volcanic rocks in the central segment of the Gangdise area. Geological Bulletin of China, 22(1): 16-20(in Chinese with English abstract)
Kapp P, Yin A and Manning CE, Murphy M, Harrison TM, Matthew S, Ding L, Deng XG and Wu CM. 2000, Blueschist-bearing metamorphic core complexes in the Qiangtang block reveal deep crustal structure of northern Tibet. Geology, 28(1): 19-22
Kapp P, Yin A, Manning CE, Harrison TM and Taylor MH. 2003. Tectonic evolution of the Early Mesozoic blueschist-bearing Qiangtang metamorphic belt, Central Tibet. Tectonics, 22(4): 1043, doi:10.1029/2002TC001383
Kato T, Enami M and Zhai M. 1997. Ultra-high-pressure (UHP) marble and eclogite in the Su-Lu UHP terrane, eastern China. Journal of Metamorphic Geology, 15(2):169-182
Lepvrier C, Nguyen VV, Maluski H, Thi PT and Tich VV. 2008. Indosinian tectonics in Vietnam. C.R Geoscience, 340: 94-111
Li C. 1987. The Longmucuo-Shuanghu-Lanchangjiang plate suture and the north boundary of distribution of Gondwana facies Permian-Carboniferous system in northern Xizang, China. Journal of Changchun University of Earth Science, 17(2): 155-166(in Chinese with English abstract)
Li C, Cheng LR, Hu K et al. 1995. Study on the Paleo-Tethys Suture Zone of Lungmu Co-Shuanghu, Tibet. Beijing: Geological Publishing House, 1-45(in Chinese)
Li C. 1997. The 40Ar/39Ar age and its significance of the crossite from the bluschist in the Mid-Qiangtang area, Tibet. Chinese Science Bulletin, 42(1) : 88
Li C, Zhai QG, Dong YS and Huang XP. 2006a. Discovery of eclogite and its significance from the Qiangtang area, central Tibet. Chinese Science Bulletin, 51(9): 1095-1100
Li C, Zhai QG, Chen W, Yu JJ, Huang XP and Zhang Y. 2006b. Ar-Ar chronometry of the eclogite from central Qiangtang area, Qinghai-Tibet Plateau. Acta Petrologica Sinica, 22(12): 2843-2849(in Chinese with English abstract)
Li HQ, Cai ZH, Chen SY, Tang ZM, Yang M. 2008. The Indosiulan orogcnesis occurred in Lhasa terrainand the evidence from museovite 40Ar/39Ar geochronology. Acta Petrologica Sinica, 24(7): 1595-1604(in Chinese with English abstract)
Li HQ, Xu ZQ, Yang JS et al. 2009. Records of Indosinian Orogenesis in Lhasa Terrane, Tibet. Journal of Earth Science, 20(2): 348-363
Li HQ, Xu ZQ, Cai ZH, Tang ZM, Yang M. 2011. Indosinian epoch magmatic event and geological significance in the Tengchong block, western Yunnan Province. Acta Petrologica Sinica, 27(7): 2165-2172(in Chinese with English abstract)
Li SG, Liou DL, Chen YZ et al. 1991. A chronological table of the major tectonic events for Qinling-Dabie orogenic belt and its implications. In: Conference on Qinling Orogenic Belt (Selected Papers). Xi'an: Publishing House of Northwest University, 229-237(in Chinese)
Li SG, Xiao YL, Liou G, Ge NJ, Zhang ZQ, Sun SS, Cong BL, Zhang RY, Hart SR and Wang SS. 1993. Collision of the North China and Yangtze blocks and formation of coesite-bearing eclogites-timing and processes. Chemical Geology, 109: 89-111
Liou JG and Zhang RY. 1996. Occurrence of intergranular coesite in ultrahigh-P rocks from the Sulu region, eastern China: Implications for lack of fluid during exhumation. American Mineralogist, 81: 1217-1221
Liu BT, Jiang YM and Qu JC. 1983. The pplate and its dynamic analysis. Regional Geology of China, 4: 289-300(in Chinese)
Xu ZQ, Hou LW and Wang ZX. 1992. Orogenic Processes of the Songpan-Garze Orogenic Belt of China. Beijing: Geological Publishing House, 1-190 (in Chinese)
Xu ZQ, Zhang ZM, Liu FL, Yang JS, Li HB, Yang TN, Qiu HJ, Li TF, Meng FC, Chen SZ, Tang ZM and Chen FY. 2003. Exhumation structure and mechanism of the Sulu ultrahigh-pressure metamorphic belt, Central China. Acta Geologica Sinica, 77(4): 433-451(in Chinese with English abstract)
Xu ZQ, Yang JS, Li HB, Zhang JX and Wu CL. 2007. Orogenic Plateau: Terrane Amalgamation, Collision and Uplift in the Qinghai-Tibet Plateau. Beijing: Geological Publishing House, 1-458(in Chinese with English abstract)
Xu ZQ, Yang WC, Ji SC, Zhang ZM, Yang JS, Wang Q and Tang ZM. 2009. Deep root of a continent-continent collision belt: Evidence from the Chinese Continental Scientific Drilling (CCSD) deep borehole in the Sulu ultrahigh-pressure (HP-UHP) metamorphic terrane, China. Tectonophysics, 475: 204-219
Yang F, Zou GF, Wu J, Li F, Jiang YG and Zhao XD. 2011. Ages and geological significance of the porphyries in the Chundu copper mining area in Zhongdian,Yunnan Province. Geotectonica Et Metallogenia, 35(2): 307-314 (in Chinese with English abstract)
Yang JJ. 1991. Eclogites, Garnet, Pyroxeneites and Related Ultrabasics in Shandong and North Jiangsu of East China. Beijing: Geological Publishing House, 205-213(in Chinese with English abstract)
Yang JS, Robinson PT, Jiang CF and Xu ZQ. 1996. Ophiolites of the Kunlun Mountains, China and their tectonic implications. Tectonophysics, 258: 215-231
Yang JS, Xu ZQ, Wu CL, Liu FL, Shi RD, Wooden J and Maruyama S. 2002. SHRIMP U-Pb dating on coesite-bearing zircon: Evidence for Indosinian ultrahigh-pressure metamorphism in Su-Lu, East China. Acta Geologica Sinica, 76(3): 354-372(in Chinese with English abstract)
Yang JS, Xu ZQ, Geng QR, Li ZL, Xu XZ, Li TF, Ren YF, Li HQ, Cai ZH, Liang FH and Chen SY. 2006. A possible new HP/UHP (?) metamorphic belt in China: Discovery of eclogite in the Lasha Terrane, Tibet. Acta Geologica Sinica, 80: 1787-1792(in Chinese with English abstract)
Yang JS, Xu ZQ, Li TF, Li HQ, Li ZL, Ren YF, Xu XZ and Chen SY. 2007. Oceanic subduction-type eclogite in the Lhasa block, Tibet, China: Remains of the Paleo-Tethys ocean basin? Geological Bulletin of China, 26(10): 1277-1287(in Chinese with English abstract)
Yang JS, Xu ZQ, Li ZL, Xu X, Li TF, Ren YF, Li HQ, Chen SY and Robinson TP. 2009. Discovery of an eclogite belt in the Lhasa block, Tibet: A new border for Paleo-Tethys? Journal of Asian Earth Sciences, 34: 76-89
Yang JS, Xu ZQ, Duan XD, Li J, Xiong FH, Liu Z, Cai ZH and Li FQ. 2012. Discovery of a Jurassic SSZ ophiolite in the Myitkyina region of Myanmar. ActaPetrologica Sinica, 28(6): 1710-1730(in Chinese with English abstract)
Ye K, Cong BL, Hirajima T and Banno S. 1999. Transformation from granulite to transitional eclogite at Haiyangsuo, Rushan County, eastern Shandong Peninsula: The kinetic process and tectonic implications. Acta Petrologica Sinica, 15(1): 21-36(in Chinese)
Yin A and Harrison TM. 2000. Geological evolution of the Himalayan-Tibetan orogen. Annual Review of Earth and Planetary Sciences, 28: 211-280
Zhai MG, Guo JH, Li Z, Chen DZ, Peng P, Li TS, Zhang YB, Hou QL, Fan QC and Hu B. 2007. Extension of the Sulu UHP belt to the Korean Peninsula: Evidence from orogenic belts, Precambrian basements, and Paleozoic sedimentary basins. Geological Journal of China Universities, 13(3): 415-428(in Chinese with English abstract)
Zhai QG, Zhang RY, Jahn BM, Li C, Song SG and Wang J. 2011a. Triassic eclogites from central Qiantang, northern Tibet, China: Petrology, geochronology and metamorphic P-T path. Lithos, 125: 173-189
Zhai QG, Jahn BM, Zhang RY, Wang J and Su L. 2011b. Triassic subduction of the Paleo-Tethys in northern Tibet, China: Evidence from the geochemical and isotopic characteristics of eclogites and blueschists of the Qiangtang Block. Journal of Asian Earth Sciences, 42(6): 1356-1370
Zhang GW, Dong YP, Lai SC, Guo AL, Meng QR, Liu SF, Cheng SY, Yao AP, Zhang ZQ, Pei XZ and Li SZ. 2003. The Mian-Lue tectonic belt and suture zone in the south of the Qinling-Dabie Orogen. Science in China (Series D), 35(12): 1121-1135(in Chinese)
Zhang HF, Zhang L, Harris N, Jin LL and Yuan HL. 2006. U-Pb zircon ages, geochemical and isotopic compositions of granitoids in Songpan-Garze fold belt, eastern Tibetan Plateau: Constraints on petrogenesis and tectonic evolution of the basement. Contrib. Mineral. Petrol., 152: 75-88
Zhang HF, Parrish R, Zhang L, Xu WC, Yuan HL, Gao S and Crowley QG. 2007. A type granite and adakitic magmatism association in Songpan-Garze fold belt, eastern Tibetan Plateau: Implication for lithospheric delamination. Lithos, 97: 323-335
Zhang KJ, Zhang YX, Li B, Zhu YT and Wei RZ. 2006a. The blueschist-bearing Qiangtang metamorphic belt (northern Tibet, China) as an in situ suture zone: Evidence from geochemical comparison with the Jinsa suture. Geology, 34(6): 493-496
Zhang KJ, Cai JX, Zhang YX and Zhao TP. 2006b. Eclogites from central Qiangtang, northern Tibet (China) and tectonic implications. Earth and Planetary Science Letters, 245: 722-729
Zhang KJ, Tang XC, Wang Y and Zhang YX. 2011. Geochronology, geochemistry, and Nd isotopes of Early Mesozoic bimodal volcanism in northern Tibet, western China: Constraints on the exhumation of the central Qiangtang metamorphic belt. Lithos, 121: 167-175
Zhang RY, Liou JG and Cong BL. 1995. Talc-magnesite and Ti-clinohumite-bearing ultrahigh-pressure meta-mafic and ultramafic complex in the Dabie Mountains, China. Journal of Petrology, 36: 1011-1037
Zhang RY and Liou JG. 1997. Transformation of gabbro to coesite-bearing eclogites from Yangkou, the Sulu terrane, eastern China. Journal of Metamorphic Geology, 15: 183-202
Zhang RY and Liou JG. 1998. Ultrahigh-pressure metamorphism of the Sulu terrane, eastern China: A prospective view. Cont. Dyn., 3: 32-53
Zhang RY, Liou JG, Yang JS and Yui TF. 2000. Petrochemical constraints for dual origin of garnet peridotites from the Dabie-Sulu UHP terrane, eastern-central China. Journal of Metamorphic Geology, 18: 149-166
Zhang RY, Liou JG, Zheng YF and Fu B. 2003. Transition of UHP eclogites to gneissic rocks of low-amphibolite facies during exhumation: Evidence from the Dabie terrane, Central China. Lithos, 70: 269-291
Zhang XD, Chen YF and Wang GZ. 1992. Characteristics of eclogites in Junan County, southeastern Shandong. Acta Petrologica Sinica, 8(1): 40-50(in Chinese with English abstract)
Zhang XD, Wang SG, Liu JW, Zhang HF, Song WQ and Luan YD. 1999. PTt path of metamorphism of Lanshantou eclogite in southeastern Shandong and its geological significance. Acta Petrologica Sinica, 15(1): 37-47(in Chinese)
Zhang ZM and Jin M. 1979. Two kinds of melange and their tectonic significance in Xiangcheng-Derong area, southwestern Sichuan. Acta Geologica Sinica, 85(3): 205-216(in Chinese with English abstract)
Zheng LL, Geng QR, Dong H, Ou CS and Wang XW. 2003. The discovery and significance of the relicts of ophiolitic mélanges along the Parlung Zangbo in the Bomi region, eastern Xizang. Geological Bulletin of China, 22(11-12) : 908-911(in Chinese with English abstract)
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