Advertisement

Science China Earth Sciences

, Volume 61, Issue 7, pp 887–902 | Cite as

Structural characteristics and geochronology of migmatites in the North Dabie Complex unit: Timing of post-collisional deformation

  • Yongsheng Wang
  • Qiao Bai
  • Bingfei Yang
Research Paper
  • 30 Downloads

Abstract

Extensive migmatization and large-scale post-collisional intrusions occurred in the Dabie orogen, east-central China, during the Early Cretaceous, characterized by distinct deformation preserved in migmatites in the North Dabie Complex unit. The North Dabie Complex unit can be subdivided into three areas based on detailed field observations: the north of the Tiantangzhai pluton, the Luotian area and the Yuexi area. Banded migmatites crop out in the north of the Tiantangzhai pluton while anisotropically deformed migmatites occur in the Luotian area, and both types coexist in the Yuexi area. Microscopy reveals similar micro-structures are in migmatites from the north of the Tiantangzhai pluton, the Yuexi area and border of the Luotian area, while static recrystallization appears in migmatites from the core of the Luotian area. The Lattice-Preferred Orientation of dynamically recrystallized quartz grains in the migmatites are measured using electron backscattered diffraction, revealing prism <a> slip or <c> slip in migmatite from the north of the Tiantangzhai pluton and the Yuexi area and in one sample from the Luotian area. A Type I crossed girdle is developed in another sample from the Luotian area, indicating top-to-the-SE shearing that developed under greenschist facies conditions. Zircon U-Pb dates from four migmatites reveal that mainly Early Cretaceous ages are from the north of the Tiantangzhai pluton, only four Early Cretaceous ages are from the Luotian area, and all zircons from the Yuexi area record Indosinian metamorphic ages. Although zircon U-Pb results show multiple migmatization events, all samples record a migmatization age of about 132 Ma, suggesting an orogen-scale event at that time. The subsolidus deformation in migmatites indicates that deformation were soon after migmatization. Overall, this study shows that deformation in migmatites of the North Dabie Complex unit occurred somewhat later than the migmatization (~132 Ma) at about 131 Ma. The most likely mechanism for thinning of the thickened crust in the Dabie orogen involved removal of the upper along the detachment fault and ductile adjustment of lower crust during development of the North Dabie metamorphic core complex.

Keywords

The North Dabie Complex unit Migmatite Structural evidence Zircon U-Pb dating 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Notes

Acknowledgements

We gratefully acknowledge the support of Prof. Li Quanzhong from the Geological Laboratory, School of Resources and Environmental Engineering, Hefei University of Technology for assistance with U-Pb zircon LA-ICP-MS analysis. We sincerely thank the three anonymous reviewers for their constructive comments that improved the final version of the manuscript. This study was supported by the National Natural Science Foundation of China (Grant Nos. 41572186, 41541045).

Supplementary material

11430_2017_9189_MOESM1_ESM.pdf (143 kb)
Appendix 1 Zircon LA-ICP MS U-Pb analysis results of migmatites collected from North Dabie Complex unit

References

  1. Altenberger U, Wilhelm S. 2000. Ductile deformation of K-feldspar in dry eclogite facies shear zones in the Bergen Arcs, Norway. Tectonophysics, 320: 107–121CrossRefGoogle Scholar
  2. Belousova E A, Griffin W L, O’Reilly S, Fisher N I. 2002. Igneous zircon: trace element composition as an indicator of source rock type. Contrib Mineral Petrol, 143: 602–622CrossRefGoogle Scholar
  3. Blumefeld P, Mainprice D, Bouchez J L. 1986. C-slip in quartz from subsolidus deformed granite. Tectonophysics, 127: 96–115Google Scholar
  4. Bryant D L, Ayers J C, Gao S, Miller C F, Zhang H. 2004. Geochemical, age, and isotopic constraints on the location of the Sino–Korean/Yangtze Suture and evolution of the Northern Dabie Complex, east central China. Geo Soc Am Bull, 116: 698–717CrossRefGoogle Scholar
  5. Chen J, Wang Q C. 1995. High temperature strain of quartz in the mylonite zone of the northern Dabie Mountains (in Chinese with English abstract). Chin J Geol, 30: 432–435Google Scholar
  6. Chen R X, Ding B H, Zheng Y F, Hu Z C. 2015. Multiple episodes of anatexis in a collisional orogen: Zircon evidence from migmatite in the Dabie orogen. Lithos, 212–215: 247–265CrossRefGoogle Scholar
  7. Davies G R, Tommasini S. 2000. Isotopic disequilibrium during rapid crustal anatexis: implications for petrogenetic studies of magmatic processes. Chem Geol, 162: 169–191CrossRefGoogle Scholar
  8. Davis G A, Zheng Y D. 2002. Metamorphic core complexes: Definition, types and tectonic setting (in Chinese with English abstract). Geol Bull China, 21: 185–192Google Scholar
  9. Deng X, Wu K B, Yang K G. 2013. Emplacement and deformation of Shigujian syntectonic granite in central part of the Dabie orogen: Im-plications for tectonic regime transformation. Sci China Earth Sci, 56: 980–992CrossRefGoogle Scholar
  10. Faure M, Lin W, Schärer U, Shu L, Sun Y, Arnaud N. 2003. Continental subduction and exhumation of UHP rocks. Structural and geochronological insights from the Dabieshan (East China). Lithos, 70: 213–241Google Scholar
  11. Gao X Y, Zhang Q Q, Zheng Y F, Chen Y X. 2017. Petrological and zircon evidence for the Early Cretaceous granulite-facies metamorphism in the Dabie orogen, China. Lithos, 284-285: 11–29CrossRefGoogle Scholar
  12. Hacker B R, Ratschbacher L, Webb L, Dong S W. 1995. What brought them up? Exhumation of the Dabie Shan ultrahigh-pressure rocks. Geology, 23: 743–746CrossRefGoogle Scholar
  13. Hacker B R, Ratschbacher L, Webb L, Ireland T, Walker D, Dong S W. 1998. U/Pb zircon ages constrain the architecture of the ultrahighpressure Qinling-Dabie Orogen, China. Earth Planet Sci Lett, 161: 215–230CrossRefGoogle Scholar
  14. Hacker B R, Ratschbacher L, Webb L, McWilliams M O, Ireland T, Calvert A, Dong S, Wenk H R, Chateigner D. 2000. Exhumation of ultrahighpressure continental crust in east central China: Late Triassic-Early Jurassic tectonic unroofing. J Geophys Res, 105: 13339–13364CrossRefGoogle Scholar
  15. He Y, Li S, Hoefs J, Huang F, Liu S A, Hou Z. 2011. Post-collisional granitoids from the Dabie orogen: New evidence for partial melting of a thickened continental crust. Geochim Cosmochim Acta, 75: 3815–3838CrossRefGoogle Scholar
  16. Hu S, Kohn B P, Raza A, Wang J, Gleadow A J W. 2006. Cretaceous and Cenozoic cooling history across the ultrahigh pressure Tongbai-Dabie belt, central China, from apatite fission-track thermochronology. Tectonophysics, 420: 409–429CrossRefGoogle Scholar
  17. Ji W, Lin W, Faure M, Shi Y, Wang Q. 2017. The early Cretaceous orogenscale Dabieshan metamorphic core complex: implications for extensional collapse of the Triassic HP-UHP orogenic belt in east-central China. Int J Earth Sci (Geol Rundsch), 106: 1311–1340CrossRefGoogle Scholar
  18. Jiang L L, Liu Y C, Wu W P, Li H M, Fang Z. 2002. Zircon U-Pb age and its geological implications of the gray gneiss to the northern Manshuihe in the North Dabie Mountains (in Chinese with English abstract). Geochimica, 31: 66–70Google Scholar
  19. Lafrance B, John B E, Frost B R. 1998. Ultra high-temperature and subsolidus shear zones: Examples from the Poe Mountain anorthosite, Wyoming. J Struct Geol, 20: 945–955CrossRefGoogle Scholar
  20. Leeman W P, Harry D L. 1993. A binary source model for extensionrelated magmatism in the Great Basin, Western North America. Science, 262: 1550–1554CrossRefGoogle Scholar
  21. Li S G, He Y S, Wang S J. 2013. Process and mechanism of mountain-root removal of the Dabie Orogen—Constraints from geochronology and geochemistry of post-collisional igneous rocks. Chin Sci Bull, 58: 4411–4417CrossRefGoogle Scholar
  22. Li S, Jagoutz E, Chen Y, Li Q. 2000. Sm-Nd and Rb-Sr isotopic chronology and cooling history of ultrahigh pressure metamorphic rocks and their country rocks at Shuanghe in the Dabie Mountains, Central China. Geochim Cosmochim Acta, 64: 1077–1093CrossRefGoogle Scholar
  23. Lin W, Ji W, Faure M, Wu L, Li Q, Shi Y, Scharer U, Wang F, Wang Q. 2015. Early Cretaceous extensional reworking of the Triassic HP-UHP metamorphic orogen in Eastern China. Tectonophysics, 662: 256–270CrossRefGoogle Scholar
  24. Lin W, Wang Q C, Faure M, Arnaud N. 2005. Tectonic evolution of the Dabieshan orogen: In the view from polyphase deformation of the Beihuaiyang metamorphic zone. Sci China Ser D-Earth Sci, 48: 886–899CrossRefGoogle Scholar
  25. Lin W, Wang Q C, Faure M, Sun Y, Shu L S, Schärer U. 2003. Different deformation stages of the Dabieshan Mountains and UHP rocks exhumation mechanism (in Chinese with English abstract). Acta Petrol Sin, 77: 44–54Google Scholar
  26. Lister G S, Baldwin S L. 1993. Plutonism and the origin of metamorphic core complexes. Geology, 21: 607–610CrossRefGoogle Scholar
  27. Lister G S, Davis G A. 1989. The origin of metamorphic core complexes and detachment faults formed during Tertiary continental extension in the northern Colorado River region, U.S.A.. J Struct Geol, 11: 65–94CrossRefGoogle Scholar
  28. Liu F L, Xue H M, Xu Z Q, Liang F H, Gerdes A. 2006. SHRIMP U-Pb zircon dating from eclogite lens in marble, Shuanghe area, Dabie UHP terrane: Restriction on the prograde, UHP and retrograde metamorphic ages (in Chinese with English abstract). Acta Petrol Sin, 22: 1761–1778Google Scholar
  29. Liu Y C, Li S G, Xu S T. 2007. Zircon SHRIMP U-Pb dating for gneisses in northern Dabie high T/P metamorphic zone, central China: Implications for decoupling within subducted continental crust. Lithos, 96: 170–185CrossRefGoogle Scholar
  30. Ludwig K R. 2004. User′s manual for Isoplot 3.14: A Geochronological Toolkit for Microsoft Excel. California: Berkeley Geochronology CenterGoogle Scholar
  31. Mainprice D, Bouchez J L, Blumenfeld P, Tubià J M. 1986. Dominant c slip in naturally deformed quartz: Implications for dramatic plastic softening at high temperature. Geology, 14: 819–822CrossRefGoogle Scholar
  32. Malaspina N, Hermann J, Scambelluri M, Compagnoni R. 2006. Multistage metasomatism in ultrahigh-pressure mafic rocks from the North Dabie Complex (China). Lithos, 90: 19–42CrossRefGoogle Scholar
  33. Passchier C W, Trouw R A J. 2005. Microtectonics. 2nd ed. New York-Berlin-Heidelberg: Springer. 25–111Google Scholar
  34. Pryer L L. 1993. Microstructures in feldspars from a major crustal thrust zone: The Grenville Front, Ontario, Canada. J Struct Geol, 15: 21–36CrossRefGoogle Scholar
  35. Ratschbacher L, Hacker B R, Webb L E, McWilliams M, Ireland T, Dong S, Calvert A, Chateigner D, Wenk H R. 2000. Exhumation of the ultrahigh-pressure continental crust in east central China: Cretaceous and Cenozoic unroofing and the Tan-Lu fault. J Geophys Res, 105: 13303–13338CrossRefGoogle Scholar
  36. Rey P, Vanderhaeghe O, Teyssier C. 2001. Gravitational collapse of the continental crust: definition, regimes and modes. Tectonophysics, 342: 435–449CrossRefGoogle Scholar
  37. Stipp M, Stünitz H, Heilbronner R, Schmid S M. 2002. The eastern Tonale fault zone: a ‘natural laboratory’ for crystal plastic deformation of quartz over a temperature range from 250 to 700°C. J Struct Geol, 24: 1861–1884CrossRefGoogle Scholar
  38. Tullis J, Yund R A. 1987. Transition from cataclastic flow to dislocation creep of feldspar: Mechanisms and microstructures. Geology, 15: 606–609CrossRefGoogle Scholar
  39. Wang G C, Wang P, Liu C, Wang A, Ye R Q. 2008. Geochronology constraints on transformation age from ductile to brittle deformation of the Shangma fault and its tectonic significance, Dabieshan, central China. J China Univ Geosci, 19: 97–109CrossRefGoogle Scholar
  40. Wang G C, Yang W R. 1998. Uplift evolution during Mesozoic-Cenozoic of the Dabie orogenic belt: Evidence from the tectono-chronology (in Chinese with English abstract). Earth Sci, 23: 461–467Google Scholar
  41. Wang J H, Sun M, Deng S X. 2002. Geochronological constraints on the timing of migmatization in the Dabie Shan, East-central China. Eur J Mineral, 14: 513–524CrossRefGoogle Scholar
  42. Wang Q, Wyman D A, Xu J, Jian P, Zhao Z, Li C, Xu W, Ma J, He B. 2007. Early Cretaceous adakitic granites in the Northern Dabie Complex, central China: Implications for partial melting and delamination of thickened lower crust. Geochim Cosmochim Acta, 71: 2609–2636CrossRefGoogle Scholar
  43. Wang S J, Li S G, Chen L J, He Y S, An S C, Shen J. 2013. Geochronology and geochemistry of leucosomes in the North Dabie Terrane, East China: implication for post-UHPM crustal melting during exhumation. Contrib Mineral Petrol, 165: 1009–1029CrossRefGoogle Scholar
  44. Wang S J, Li S G. 2014. Migmatite and its geodynamic implications (in Chinese with English abstract). Earth Sci Front, 21: 21–31Google Scholar
  45. Wang Y S, Wang H F, Sheng Y, Xiang B W. 2014. Early Cretaceous uplift history of the Dabie orogenic belt: Evidence from pluton emplacement depths. Sci China Earth Sci, 57: 1129–1140CrossRefGoogle Scholar
  46. Wang Y, Xiang B, Zhu G, Jiang D. 2011. Structural and geochronological evidence for Early Cretaceous orogen-parallel extension of the ductile lithosphere in the northern Dabie orogenic belt, East China. J Struct Geol, 33: 362–380CrossRefGoogle Scholar
  47. Wawrzenitz N, Romer R L, Oberhänsli R, Dong S. 2006. Dating of subduction and differential exhumation of UHP rocks from the Central Dabie Complex (E-China): Constraints from microfabrics, Rb–Sr and U-Pb isotope systems. Lithos, 89: 174–201CrossRefGoogle Scholar
  48. Whitney D L, Teyssier C, Rey P, Buck W R. 2013. Continental and oceanic core complexes. Geological Soc Am Bull, 125: 273–298CrossRefGoogle Scholar
  49. Wightman R H, Prior D J, Little T A. 2006. Quartz veins deformed bydiffusion creep-accommodated grain boundary sliding during a transient, high strain-rate event in the Southern Alps, New Zealand. J Struct Geol, 28: 902–918CrossRefGoogle Scholar
  50. Wu Y B, Zheng Y F, Zhang S B, Zhao Z F, Wu F Y, Liu X M. 2007. Zircon U-Pb ages and Hf isotope compositions of migmatite from the North Dabie terrane in China: Constraints on partial melting. J Metamorph Geol, 25: 991–1009CrossRefGoogle Scholar
  51. Wu Y, Zheng Y. 2004. Genesis of zircon and its constraints on interpretation of U-Pb age. Chin Sci Bull, 49: 1554–1569CrossRefGoogle Scholar
  52. Xia B, Cai Z R, Zhang Y Q, Zhong L F, Wu W P, Wang H, Liu L W, Yang Z Q, Dong C Y. 2010. SHRIMP U-Pb dating of migmatite in Shiguan of Yuexi County, Dabie Mountains and its geological significance (in Chinese with English abstract). Acta Geol Sin, 84: 206–210CrossRefGoogle Scholar
  53. Xia Q K, Zheng Y F, Ge N J, Deloule E. 2003. U-Pb ages and oxygen isotope compositions of zircons from gneiss of Huangtuling, Northern Dabie: Old protolith and multi-stage evolution (in Chinese with English abstract). Acta Petrol Sin, 19: 506–512Google Scholar
  54. Xie Z, Gao T, Chen J. 2004. Multi-stage evolution of gneiss from North Dabie: Evidence from zircon U-Pb chronology. Chin Sci Bull, 49: 1963–1969CrossRefGoogle Scholar
  55. Xie Z, Zheng Y F, Zhao Z F, Wu Y B, Wang Z, Chen J, Liu X, Wu F Y. 2006. Mineral isotope evidence for the contemporaneous process of Mesozoic granite emplacement and gneiss metamorphism in the Dabie orogen. Chem Geol, 231: 214–235CrossRefGoogle Scholar
  56. Xu H, Ma C, Ye K. 2007. Early cretaceous granitoids and their implications for the collapse of the Dabie orogen, eastern China: SHRIMP zircon UPb dating and geochemistry. Chem Geol, 240: 238–259CrossRefGoogle Scholar
  57. Xu H, Ma C, Zhang J, Ye K. 2012. Early Cretaceous low-Mg adakitic granites from the Dabie orogen, eastern China: Petrogenesis and implications for destruction of the over-thickened lower continental crust. Gondwana Res, 23: 190–207CrossRefGoogle Scholar
  58. Xu H, Zhang J. 2017. Anatexis witnessed post-collisional evolution of the Dabie orogen, China. J Asian Earth Sci, 145: 278–296CrossRefGoogle Scholar
  59. Xu S T, Jiang L L, Liu Y C, Zhang Y. 1992. Tectonic framework and evolution of the Dabie Mountains in Anhui, eastern China (in Chinese with English abstract). Acta Geol Sin, 66: 1–14Google Scholar
  60. Xu S T, Jiang L L, Liu Y C, Zhang Y. 1992. Tectonic framework and evolution of the Dabie Mountains in Anhui, eastern China (in Chinese with English abstract). Acta Geol Sin, 66: 1–14Google Scholar
  61. Xue H M, Ma F, Zhao X, Wu W P. 2011. Characteristics and LA-ICP-MS zircon U-Pb ages of the Tianzhushan granitoid intrusive body, southeastern Dabie orogen (in Chinese with English abstract). Acta Petrol Mineral, 30: 935–950Google Scholar
  62. Yan J, Liu J, Li Q, Xing G, Liu X, Xie J, Chu X, Chen Z. 2015. In situ zircon Hf-O isotopic analyses of late Mesozoic magmatic rocks in the Lower Yangtze River Belt, central eastern China: Implications for petrogenesis and geodynamic evolution. Lithos, 227: 57–76CrossRefGoogle Scholar
  63. Yang K, Ma C, Xu C, Yang W. 2000. Differential uplift between Beihuaiyang and Dabie orogenic belt. Sci China Ser D-Earth Sci, 43: 193–199CrossRefGoogle Scholar
  64. Yund R A, Tullis J. 1991. Compositional changes of minerals associated with dynamic recrystallizatin. Contr Mineral Petrol, 108: 346–355CrossRefGoogle Scholar
  65. Zhai M G, Cong B L, Zhao Z, Wang Q C, Wang G, Jiang L L. 1995. Petrological-tectonic units in the coesite-bearing metamorphic terrain of the Dabie Mountains, central China and their geotectonic implication. J Asian Earth Sci, 1: 1–13Google Scholar
  66. Zhang R Y, Liou J G, Tsai C H. 1996. Petrogenesis of a high-temperature metamorphic terrane: A new tectonic interpretation for the north Dabieshan, central China. J Metamorph Geol, 14: 319–333CrossRefGoogle Scholar
  67. Zhao Z F, Liu Z B, Chen Q. 2017. Melting of subducted continental crust: Geochemical evidence from Mesozoic granitoids in the Dabie-Sulu orogenic belt, east-central China. J Asian Earth Sci, 145: 260–277CrossRefGoogle Scholar
  68. Zhao Z F, Zheng Y F, Wei C S, Wu Y B, Chen F, Jahn B. 2005. Zircon UPb age, element and C–O isotope geochemistry of post-collisional mafic-ultramafic rocks from the Dabie orogen in east-central China. Lithos, 83: 1–28CrossRefGoogle Scholar
  69. Zhao Z F, Zheng Y F, Wei C S, Wu Y B. 2004. Zircon isotope evidence for recycling of subducted continental crust in post-collisional granitoids from the Dabie terrane in China. Geophys Res Lett, 31: L22602CrossRefGoogle Scholar
  70. Zhao Z F, Zheng Y F, Wei C S, Wu Y B. 2007. Post-collisional granitoids from the Dabie orogen in China: Zircon U-Pb age, element and O isotope evidence for recycling of subducted continental crust. Lithos, 93: 248–272CrossRefGoogle Scholar
  71. Zhao Z F, Zheng Y F. 2009. Remelting of subducted continental lithosphere: Petrogenesis of Mesozoic magmatic rocks in the Dabie-Sulu orogenic belt. Sci China Ser D-Earth Sci, 52: 1295–1318CrossRefGoogle Scholar
  72. Zheng Y F, Chen R X, Zhao Z F. 2009. Chemical geodynamics of continental subduction-zone metamorphism: Insights from studies of the Chinese Continental Scientific Drilling (CCSD) core samples. Tectonophysics, 475: 327–358CrossRefGoogle Scholar
  73. Zheng Y F, Fu B, Gong B, Li L. 2003. Stable isotope geochemistry of ultrahigh pressure metamorphic rocks from the Dabie-Sulu orogen in China: Implications for geodynamics and fluid regime. Earth-Sci Rev, 62: 105–161CrossRefGoogle Scholar
  74. Zheng Y F, Zhou J B, Wu Y B, Xie Z. 2005. Low-grade metamorphic rocks in the Dabie-Sulu Orogenic Belt: A passive-margin accretionary wedge deformed during continent subduction. Int Geol Rev, 47: 851–871CrossRefGoogle Scholar
  75. Zheng Y F. 2008. A perspective view on ultrahigh-pressure metamorphism and continental collision in the Dabie-Sulu orogenic belt. Chin Sci Bull, 53: 3081–3104CrossRefGoogle Scholar
  76. Zhu G, Wang Y, Liu G, Niu M, Xie C, Li C. 2005. 40Ar/39Ar dating of strike-slip motion on the Tan-Lu fault zone, East China. J Struct Geol, 27: 1379–1398CrossRefGoogle Scholar
  77. Zhu G, Wang Y, Wang W, Zhang S, Liu C, Gu C, Li Y. 2017. An accreted micro-continent in the north of the Dabie Orogen, East China: Evidence from detrital zircon dating. Tectonophysics, 698: 47–64CrossRefGoogle Scholar

Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Resources and Environmental EngineeringHefei University of TechnologyHefeiChina

Personalised recommendations