Contributions to Mineralogy and Petrology

, Volume 149, Issue 5, pp 499–526 | Cite as

High-pressure/ultrahigh-pressure eclogites from the Hong’an Block, East-Central China: geochemical characterization, isotope disequilibrium and geochronological controversy

  • Bor-ming JahnEmail author
  • Xiaochun Liu
  • Tzen-Fu Yui
  • N. Morin
  • M. Bouhnik-Le Coz
Original Paper


The Hong’an Block (western Dabieshan) exposes a series of HP/UHP metamorphic rocks, with a S-to-N distribution from blueschist–greenschist, kyanite-free, to kyanite- and coesite-bearing eclogites. The available age data are inconclusive that hinder our understanding of the tectonic evolution of the Block. The metamorphic temperatures in the Hong’an Block (Tmeta ≈ 700 to 500°C) are lower by 50–150°C than that of the Dabie and Sulu terranes. In this work, we undertook new trace element and Sr–Nd–O isotopic analyses on minerals in order to gain more insight into the geochronological problems. The results are as follows: (1) Trace element distribution patterns suggest that garnet and omphacite in many cases are out of chemical equilibrium; and the presence of high-temperature LREE-rich mineral inclusions (e.g., epidote) in garnet and omphacite has contributed to isotope disequilibrium. (2) Sm–Nd isotope analyses yielded no isochron ages for the Hong’an eclogites. (3) Rb–Sr isotope analyses gave mixed results; in some cases, coexisting minerals are completely out of isotope equilibrium, and in others, isochron relationship is established, yielding ages from 210 Ma to 225 Ma. The pattern of Rb–Sr isotope disequilibrium appears to be independent of the petrological and O-isotope temperatures. (4) In contrast to the unequilibrated Sm–Nd isotopic systems, oxygen isotopes of the eclogite minerals seem to have attained isotope equilibrium or near-equilibrium. Oxygen isotope temperatures are comparable with petrological temperatures. However, this is an apparent feature due to mass balance constraints. (5) Whole-rock δ18O values show a large variation from +10‰ to −8‰, suggesting that their protoliths have undergone very different processes of water–rock interaction. In view of the overall geochronological information, we conclude that the HP/UHP metamorphism in the Hong’an Block took place in the Triassic at about 220–230 Ma, as observed in the Dabie and Sulu terranes. The significance of published Paleozoic dates (450–300 Ma) for the Xiongdian eclogite is not clear. However, any hypotheses advocating two periods of UHP metamorphic events for the same tectonic unit or in the same locality are not constrained by the geochronological data.


Oxygen Isotope Isotope Equilibrium Isochron Eclogite Sample Glaucophane Schist 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Joël Macé ably assisted in mass spectrometric analyses reported herein. Klaus Mezger and Yong-Fei Zheng reviewed the manuscript and made many constructive suggestions for clarification and improvement of the final draft. The senior author (BmJ) was initially supported by grants from the French CNRS-INSU. The NSC-Taiwan grants (NSC91-2811-M-002-012, NSC92-2811-M-002-056 and NSC92-2116-M-002-024) allowed him to complete this work. Xiaochun Liu was supported by the Major State Basic Research Development Program of China (TG1999075505), Geological Investigation Project of China Geological Survey (200013000169) and Free Research Project of MLR (2002406). He was further supported by the National Science Council of Taiwan for the final preparation of the manuscript. T.F. Yui acknowledges the constant support of NSC.

Supplementary material

410_2005_668_esm.xls (116 kb)
XLS 119 KB


  1. Ames L, Tilto GR, Zhou G (1993) Timing of collision of the Sino-Korean and Yangtze cratons: U–Pb Zircon dating of coesite-bearing eclogites. Geology 21:339–342Google Scholar
  2. Ames L, Zhou G, Xiong B (1996) Geochronology and isotopic character of ultrahigh-pressure metamorphism with implications for collision of the Sino-Korean and Yangtze Cratons, central China. Tectonics 15:472–489Google Scholar
  3. Ayers JC, Dunkle S, Gao S, Miller CF (2002) Constraints on timing of peak and retrograde metamorphism in the Dabie Shan ultrahigh-pressure metamorphic belt, east-central China, using U-Th-Pb dating of zircon and monazite. Chem Geol 186:315–331Google Scholar
  4. Bocchio R, De Capitan L, Ottolini L, Cella F (2000) Trace element distribution in eclogites and their clinopyroxene/garnet pair: a case study from Soazza (Switzerland). Eur J Mineral 12:147–161Google Scholar
  5. Bohlen SR, Boettcher AL (1982) The quartz-coesite transition: a precise determination and the effects of other components. J Geophys Res 87:7,073–7,078Google Scholar
  6. Burton KW, Kohn MG, Cohen AS, O’Nions RK (1995) The relative diffusion of Pb, Nd, Sr and O in garnet. Earth Planet Sci Lett 133:199–211Google Scholar
  7. Carswell DA, Harley SL (1990) Mineral barometry and thermometry. In: Carswell DA (eds) Eclogite facies rocks. Blackie, New York, pp 83–110Google Scholar
  8. Carswell DA, O’Brien PJ, Wilson RN, Zhai M (1997) Thermobarometry of phengite-bearing eclogites in the Dabie Mountains of central China. J Metam Geol 15:239–252Google Scholar
  9. Chavagnac V, Jahn B-m, (1996) Coesite-bearing eclogites from the Bixiling Complex, Dabie Mountains, China: Sm–Nd ages, geochemical characteristics and tectonic implications. Chem Geol 133:29–51Google Scholar
  10. Chavagnac V, Jahn B-m, Villa IM, Whitehouse MJ, Liu D (2001) Multichronometric evidence for an in situ origin of the ultrahigh-pressure metamorphic terrane of Dabieshan, China. J Geol 109:633–646Google Scholar
  11. Cheng Y, Liu D, Williams IS, Jian P, Zhuang Y, Gao T (2000) SHRIMP U–Pb dating of zircons of a dark-colored eclogite and a garnet-bearing gneissic-granitic rocks. Acta Geol Sin 74:193–205 (in Chinese with English abstract)Google Scholar
  12. Clayton RN, Mayeda TK (1963) The use of bromine pentafluoride in the extraction of oxygen from oxides and silicates for isotopic analysis. Geochim Cosmochim Acta 27:43–52Google Scholar
  13. Cui W, Wang X (1995) Eclogites of southern Henan and northern Hubei Provinces, central China. Island Arc 4:347–361Google Scholar
  14. Dodson MH (1973) Closure temperature in cooling geochronological and petrological systems. Contrib Mineral Petrol 40:259–274Google Scholar
  15. Duchêne S, Blichert-Toft J, Luais B, Télouk P, Lardeaux JM, Albarède F (1997) The Lu-Hf dating of garnets and the ages of the Alpine high-pressure metamorphism. Nature 387:586–589Google Scholar
  16. Eide EA, Liou JG (2000) High-pressure blueschists and eclogites in Hong’an: a frame work for addressing the evolution of high- and ultrahigh-pressure rocks in central China. Lithos 52:1–22Google Scholar
  17. Eide EA, Mcwilliams MO, Liou JG (1994) 40Ar/39Ar geochronology and exhumation of high-pressure to ultrahigh-pressure metamorphic rocks in east central China. Geology 22:601–604Google Scholar
  18. Fu B, Zheng Y-F, Touret JLR (2002) Petrological, isotopic and fluid inclusion studies of eclogites from Sujiahe, NW Dabie Shan (China). Chem Geol 187:107–128Google Scholar
  19. Gao S, Qiu Y, Ling W, McNaughton NJ, Zhang B, Zhang G, Zhang Z, Zhong Z, Suo S (2002) SHRIMP single zircon U–Pb geochronology of eclogites from Yingshan and Xiongdian. Earth Sci 27:558–564 (in Chinese with English abstract)Google Scholar
  20. Gebauer D, Schertl HP, Brix M, Schreyer W (1997) 35 Ma old ultrahigh-pressure metamorphism and evidence for very rapid exhumation in the Dora Maira Massif, Western Alps. Lithos 41:5–24Google Scholar
  21. Günther M, Jagoutz E (1997) Isotope disequilibria (Sm/Nd, Rb/Sr) between minerals of coarse grained, low temperature garnet peridotites from Kimberley floors, Southern Africa. In: Meyer HOA, Leonardos OH (eds) Proceedings of 5th International Kimberlite Conference 1, CPRM Spec Publ 1A (Brasilia), pp 354–365Google Scholar
  22. Hacker BR, Wang X, Eide EA, Ratschbacher L (1996) The Qinling-Dabie ultra-high-pressure collisional orogen. In: Yin A, Harrison MT (eds) The tectonic evolution of Asia. Cambridge University Press, Cambridge, pp 345–370Google Scholar
  23. Hacker BR, Ratschbacher L, Webb LE, Ireland T, Walker D, Dong S (1998) Zircon ages constrain the architecture of the ultrahigh-pressure Qinling-Dabie orogen, China. Earth Planet Sci Lett 161:215–230Google Scholar
  24. Hacker BR, Ratschbacher L, Webb LE, McWilliams MO, Ireland T, Calvert A, Dong S, Wenk H-R, Chateigner D (2000) Exhumation of ultrahigh-pressure continental crust in east central China: late triassic-early jurassic tectonic unroofing. J Geophys Res 105:13339–13364Google Scholar
  25. Holland TJB (1980) The reaction albite = jadeite + quartz determined experimentally in the range 600–1200°C. Am Mineral 65:129–134Google Scholar
  26. Hoskin PWO, Black LP (2000) Metamorphic zircon formation by solid-state recrystallization of protolith igneous zircon. J Metam Geol 18:423–439Google Scholar
  27. Humphries FJ, Cliff RA (1982) Sm–Nd dating and cooling history of Scourian granulites, Sutherland, NW Scotland. Nature 295:515–517Google Scholar
  28. Jagoutz E (1988) Nd and Sr systematics in an eclogite xenolith from Tanzania: evidence for frozen mineral equilibria in the continental lithosphere. Geochim Cosmochim Acta 52:1285–1293Google Scholar
  29. Jahn B-m (1990) Early Precambrian basic rocks of China. In: Hall RP, Hughes DJ (eds) Early Precambrian basic magmatism. Blackie, Glasgow, pp 294–316Google Scholar
  30. Jahn B-m (1998) Geochemical and isotopic characteristics of UHP eclogites and ultramafic rocks of the Dabie orogen: Implications for continental subduction and collisional tectonics. In: Hacker B, Liou JG (eds) When continents collide: geodynamics and geochemistry of ultrahigh-pressure rocks. Kluwer, Dordrecht, pp 203–239Google Scholar
  31. Jahn B-m, Liu X (2002) Age (s) of the Hong’an block and the question of 400 Ma UHP metamorphic event. In: International workshop on geophysics and structure geology of UHPM terranes (extended abstract). Beijing, China, pp 68–70Google Scholar
  32. Jahn B-m, Cornichet J, Cong B, Yui TF (1996) Ultrahigh εNd eclogites from an UHP metamorphic terrane of China. Chem Geol 127:61–79Google Scholar
  33. Jahn B-m, Caby R, Monie P (2001) The oldest UHP eclogites of the World: age of UHP metamorphism, nature of protoliths and tectonic implications. Chem Geol 178:143–158Google Scholar
  34. Jahn B-m, Fan Q, Yang J-J, Henin O (2003a) Petrogenesis of the Maowu pyroxenite-eclogite body from the UHP metamorphic terrane of Dabieshan: chemical and isotopic constraints. Lithos 70:243–267Google Scholar
  35. Jahn B-m, Rumble D, Liou JG (2003b) Geochemistry and isotope tracer study of UHPM rocks (Chapter 12). In: Carswell DA, Compagnoni R (eds) Ultra-high pressure metamorphism. EMU Notes in Mineralogy 5:365–414Google Scholar
  36. Jerde EA, Taylor LA, Crozaz G, Sobolev NV, Sobolev VN (1993) Diamondiferous eclogites from Yakutia, Siberia: evidence for a diversity of protoliths. Contrib Mineral Petrol 114:189–202Google Scholar
  37. Jensen LS (1976) A new cation plot for classifying subalkalic volcanic rocks. Ontario Div Mines Misc Pap, pp 66Google Scholar
  38. Jian P, Yang W, Li Z (1997) Isotopic geochronological evidence for the Caledonian Xiongdian eclogite in the western Dabie Mountains, China. Acta Geol Sin 71:133–141 (in Chinese with English abstract)Google Scholar
  39. Jian P, Liu D, Yang W, Williams IS (2000) Petrographical study of zircons and SHRIMP dating of the Caledonian Xiongdian eclogite, northwestern Dabie Mountains. Acta Geol Sin 74:259–264 (in Chinese with English abstract)Google Scholar
  40. Li Hongyan (2003) Crustal evolution of the UHP metamorphic terranes in the Dabie Orogen. Thesis, Université de Rennes 1, France, pp 152Google Scholar
  41. Li S, Xiao Y, Liu D, Chen Y, Ge N, Zhang Z, Sun S-s, Cong B, Zhang R, Hart SR, Wang S (1993) Collision of the North China and Yangtze Blocks and formation of coesite-bearing eclogites: timing and processes. Chem Geol 109:89–111Google Scholar
  42. Li S, Wang S, Chen Y, Zhou H, Zhang Z, Liu D, Qiu J (1994) Excess argon in phengite from eclogite: evidence from dating of eclogite minerals by Sm–Nd, Rb–Sr and 40Ar/39Ar methods. Chem Geol 112:343–350Google Scholar
  43. 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 64:1077–1093Google Scholar
  44. Li S, Huang F, Nie Y, Han W, Long C, Li H, Zhang S, Zhang Z (2001) Geochemical and Geochronological constraints on the suture location between the North and South China Blocks in the Dabie orogen, central China. Phys Chem Earth (A) 26:655–672Google Scholar
  45. Liati A, Gebauer D (1999) Constraining the prograde and retrograde P-T-t path of Eocene HP rocks by SHRIMP dating of different zircon domains: inferred rates of heating, burial, cooling and exhumation for central Rhodope, northern Greece. Contrib Mineral Petrol 135:340–354Google Scholar
  46. Liati A, Gebauer D, Wysoczanski R (2002) U–Pb SHRIMP-dating of zircon domains from UHP mafic rocks in the Rhodope zone (N Greece): evidence for Early Cretaceous crystallzation and Late Cretaceous metamorphism. Chem Geol 184:281–300Google Scholar
  47. Liermann H-P, Isachsen C, Altenberger U, Oberhänsli R (2002) Behavior of zircon during high-pressure, low-temperature metamorphism: case study from the Internal Unit of the Sesia Zone (Western Italian Alps). Eur J Mineral 14:61–71Google Scholar
  48. Liou JG, Zhang RY, Wang X, Eide EA, Ernst WG, Maruyama S (1996) Metamorphism and tectonics of high-pressure and ultra-high-pressure belts in the Dabie-Sulu region, China. In: Yin A, Harrison MT (eds) The tectonic evolution of Asia. Cambridge University Press, Cambridge, pp 300–344Google Scholar
  49. Liou JG, Zhang RY, Ernst WG, Rumble D, Maruyama S (1998) High-pressure minerals from deeply subducted metamorphic rocks. Rev Mineral 37:33–96Google Scholar
  50. Liu X, Wei C, Li S, Dong S, Liu J (2004a) Thermobaric structure of a traverse across western Dabieshan: implications for collision tectonics between the Sino-Korean and Yangtze cratons. J Metam Geol 22:361–379Google Scholar
  51. Liu X, Jahn B-m, Liu D, Dong S, Li S (2004b) SHRIMP U–Pb zircon dating of a metagabbro and eclogites from western Dabieshan (Hong’an Block), China, and its tectonic implications. Tectonophysics 394:171–192Google Scholar
  52. Luais B, Duchene S, de Sigoyer J (2001) Sm–Nd disequilibrium in high-pressure, low-temperature Himalayan and Alpine rocks. Tectonophysics 342:1–22Google Scholar
  53. Ludwig KR (1999) Isoplot/Ex (v. 2.01)—a geochronological toolkit for Microsoft Excel. Berkeley Geochronology Center, Special Publication, No. 1a, pp 49Google Scholar
  54. Maruyama S, Tabata H, Nutman AP, Morikawa T, Liou JG (1998) SHRIMP U–Pb geochronology of ultrahigh-pressure metamorphic rocks of the Dabie Mountains, central China. Cont Dynam 3:72–85Google Scholar
  55. Mezger K, Essene EJ, Halliday AN (1992) Closure temperatures of the Sm–Nd system in metamorphic garnets. Earth Planet Sci Lett 113:397–409Google Scholar
  56. Middlemost EAK (1994) Naming materials in the magma/igneous rock system. Earth- Sci Rev 37:215–224Google Scholar
  57. Newton RC (1986) Metamorphic temperatures and pressures of Group B and C eclogites. In: Evans BW, Brown EH (eds) Blueschists and eclogites. Geol Soc Am, Boulder, pp 17–30Google Scholar
  58. Pidgeon RT (1992) Recrystallisation of oscillatory zoned zircon: some geochronological and petrological implications. Contrib Mineral Petrol 110:463–472Google Scholar
  59. Pidgeon RT, Nemchin AA, Hitchen GJ (1998) Internal structures of zircons from Archaean granites from the Darling Range batholith: implications for zircon stability and the interpretation of zircon U–Pb ages. Contrib Mineral Petrol 132:288–299Google Scholar
  60. Powell R (1985) Regression diagnostics and robust regression in geothermometer/geobarometer calibration: the garnet–clinopyroxene geothermometer revisited. J Metam Geol 3:231–243Google Scholar
  61. Powell R, Holland T, Worley B (1998) Calculating phase diagrams involving solid solutions via non-linear equations, with examples using Thermocalc. J Metam Geol 16:577–588Google Scholar
  62. Ratschbacher L, Hacker BR, Calvert A, Webb LE, Grimmer JC, Mcwilliams MO, Ireland T, Dong S, Hu J (2003) Tectonics of the Qinling (Central China): tectonostratigraphy, geochronology, and deformation history. Tectonophysics 366:1–53Google Scholar
  63. Rowley DB, Xue F, Tucker RD, Peng ZX, Baker J, Davis A (1997) Ages of ultrahigh pressure metamorphism and protolith orthogneisses from the eastern Dabie Shan: U/Pb zircon geochronology. Earth Planet Sci Lett 151:191–203Google Scholar
  64. Rubatto D, Gebauer D, Fanning M (1998) Jurassic formation and Eocene subduction of the Zermatt-Saas-Fee ophiolites: implications for the geodynamic evolution of the Central and Western Alps. Contrib Mineral Petrol 132:269–287Google Scholar
  65. Rubatto D, Gebauer D, Compagnoni R (1999) Dating of eclogite-facies zircons: the age of Alpine metamorphism in the Sesia-Lanzo Zone (Western Alps). Earth Planet Sci Lett 167:141–158Google Scholar
  66. Sassi R, Harte B, Carswell DA, Han Y (2000) Trace element distribution in central Dabie eclogites. Contrib Mineral Petrol 139:298–315Google Scholar
  67. Sharp ZD (1990) A laser-based microanalytical method for the in situ determination of oxygen isotope ratios of silicates and oxides. Geochim Cosmochim Acta 54:1353–1357Google Scholar
  68. de Sigoyer J, Chavagnac V, Blichert-Toft J, Villa I, Luais B, Guillot S, Cosca M, Mascle G (2000) Dating the Indian continental subduction and collisional thickening in the northwest Himalaya: multichronology of the Tso Morari eclogites. Geology 28:487–490Google Scholar
  69. Snyder GA, Jerde EA, Taylor LA, Halliday AN, Sobolev VN, Sobolev NV (1993) Nd and Sr isotopes from diamondiferous eclogites, Udachnaya Kimberlite Pipe, Yakutia, Siberia: evidence of differentiation in the early Earth? Earth Planet Sci Lett 118:91–100Google Scholar
  70. Sun W, Williams IS, Li S (2002) Carboniferous and Triassic eclogites in the western Dabie Mountains, east-central China: evidence for protracted convergence of the North and South China Blocks. J Metam Geol 20:873–886Google Scholar
  71. Tatsumi Y, Nakashima T, Tamura Y (2002) The petrology and geochemistry of calc-alkaline andesites on Shodo-Shima Island, SW Japan. J Petrol 43:3–16Google Scholar
  72. Thöni M (2002) Sm–Nd isotope systematics in garnet from different lithologies (Eastern Alps): age results, and an evaluation of potential problems for garnet Sm–Nd chronometry. Chem Geol 185:255–281Google Scholar
  73. Valley JW, Matthew NM, Kohn J, Niendorf CR, Spicuzza MJ (1995) UWG-2, a garnet standard for oxygen isotope ratios: Strategies for high precision and accuracy with laser heating. Geochim Cosmochim Acta 59:5223–5231Google Scholar
  74. Wang X, Jing Y, Liou JG, Pan G, Liang W, Xia M, Maruyama S (1990) Field occurrences and petrology of eclogites from the Dabie Mountains, Anhui, central China. Lithos 25:119–131Google Scholar
  75. Webb LE, Hacker BR, Ratschbacher L, McWilliams MO, Dong S (1999) Thermochronologic constraints on deformation and cooling history of high- and ultrahigh-pressure rocks in the Qinling-Dabie orogen, eastern China. Tectonics 18:621–638Google Scholar
  76. Webb LE, Ratschbacher L, Hacker BR, Dong S (2001) Kinematics of exhumation of high- and ultrahigh-pressure rocks in the Hong’an and Tongbai Shan of the Qinling-Dabie collisional orogen, eastern China. In: Hendrix MS, Davis GA (eds) Paleozoic and Mesozoic tectonic evolution of central Asia: from continental assembly to intracontinental deformation, Memoir 194, Geol Soc Am, Boulder, pp 231–245Google Scholar
  77. Whitney D (1996) Garnets as open systems during regional metamorphism. Geology 24:147–150Google Scholar
  78. Xie Z, Zheng Y-F, Jahn B-m, Ballevre M, Chen J-F, Gautier P, Gao T-S, Gong B, Zhou J-B (2004) Sm–Nd and Rb–Sr dating of pyroxene-garnetite from North Dabie in east-central China: problem of isotope disequilibrium due to retrograde metamorphism. Chem Geol 206:137–158Google Scholar
  79. Xu B, Grove M, Wang C, Zhang L, Liu S (2000) 40Ar/39Ar thermochronology from the northwestern Dabie Shan: constraints on the evolution of Qinling-Dabie orogenic belt, east-central China. Tectonophysics 322:279–301Google Scholar
  80. Yang JS, Wooden JL, Wu CL, Liu FL, Xu ZQ, Shi RD, Katayama I, Liou JG, Maruyama S (2003) SHRIMP U–Pb dating of coesite-bearing zircon from the ultrahigh-pressure metamorphic rocks, Sulu terrane, east China. J Metam Geol 21:551–560Google Scholar
  81. Yui TF, Rumble D, Lo CH (1995) Unusually low δ18O ultrahigh-pressure metamorphic rocks from the Sulu terrain, eastern China. Geochim Cosmochim Acta 59:2859–2864Google Scholar
  82. Yui TF, Rumble D, Chen CH, Lo CH (1997) Stable isotope characteristics of eclogites from the ultrahigh-pressure metamorphic terrains, east-central China. Chem Geol 137:135–147Google Scholar
  83. Zhang RY, Liou JG (1994) Coesite-bearing eclogite in Henan Province, central China: detailed petrography, glaucophane stability and PT path. Eur J Mineral 6:217–233Google Scholar
  84. Zheng Y-F (1991) Calculation of oxygen isotope fractionation in metal oxides. Geochim Cosmochim Acta 55:2299–2307Google Scholar
  85. Zheng Y-F (1993a) Calculation of oxygen isotope fractionation in anhydrous silicate minerals. Geochim Cosmochim Acta 57:1079–1091Google Scholar
  86. Zheng Y-F (1993b) Calculation of oxygen isotope fractionation in hydroxyl-bearing silicates. Earth Planet Sci Lett 120:247–263Google Scholar
  87. Zheng Y-F, Fu B, Li Y, Xiao Y, Li S (1998) Oxygen and hydrogen isotope geochemistry of ultrahigh-pressure eclogites from the Dabie Mountains and the Sulu terrane. Earth Planet Sci Lett 155:113–129Google Scholar
  88. Zheng Y-F, Fu B, Xiao Y, Li Y, Gong B (1999) Hydrogen and oxygen isotope evidence for fluid-rock interactions in the stages of pre- and post-UHP metamorphism in the Dabie Mountains. Lithos 46:677–693Google Scholar
  89. Zheng Y-F, Wang Z, Li S, Zhao Z (2002) Oxygen isotope equilibrium between eclogite minerals and its constraints on mineral Sm–Nd chronometer. Geochim Cosmochim Acta 66:625–634Google Scholar
  90. Zheng Y-F, Zhao Z, Li S, Gong B (2003) Oxygen isotope equilibrium between ultrahigh-pressure metamorphic minerals and its constraints on Sm–Nd and Rb–Sr chronometers. In: Vance D, Müller W, Villa IM (eds) Geochemistry: linking the isotopic record with petrology and textures. Geol Soc London, Spec Publ 220:93–117Google Scholar
  91. Zhong Z, Suo S, You Z (1999) Regional-scale extensional tectonic pattern of ultrahigh-P and high-P metamorphic belts from the Dabie massif, China. Inter Geol Rev 41:1033–1041Google Scholar
  92. Zhong Z, Suo S, You Z, Zhang H, Zhou H (2001) Major constituents of the Dabie collisional orogenic belt and partial melting in the ultrahigh-pressure unit. Inter Geol Rev 43:226–236Google Scholar
  93. Zhou B, Hensen BJ (1995) Inherited Sm/Nd isotope components preserved in monazite inclusions within garnets in leucogneiss from East Antarctica and implications for closure temperature studies. Chem Geol 121:317–326Google Scholar

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Bor-ming Jahn
    • 1
    • 2
    Email author
  • Xiaochun Liu
    • 2
    • 3
  • Tzen-Fu Yui
    • 1
  • N. Morin
    • 4
  • M. Bouhnik-Le Coz
    • 4
  1. 1.Institute of Earth SciencesAcademia SinicaTaipeiTaiwan
  2. 2.Department of GeosciencesNational Taiwan UniversityTaipeiTaiwan
  3. 3.Institute of GeomechanicsCAGSBeijingChina
  4. 4.Géosciences RennesUniversité de Rennes 1Rennes CedexFrance

Personalised recommendations