Trace-element transport during subduction-zone ultrahigh-pressure metamorphism: Evidence from Western Tianshan, China

Bulletin of the Geological Society of America

Volumn 124, Issue 7-8, 2012, Pages 1113-1129

  Xiao, Yuanyuan ^a,b   Lavis, Shaun ^c   Niu, Yaoling ^a,b   Pearce, Julian A ^c   Li, Huaikun ^d   Wang, Huichu ^d   Davidson, Jon ^a  

^a DURHAM UNIVERSITY   (United Kingdom)

^b LANZHOU UNIVERSITY   (China)

^c CARDIFF UNIVERSITY   (United Kingdom)

^d TIANJIN INSTITUTE OF GEOLOGY AND MINERAL RESOURCES   (China)

Author keywords

[No Author keywords available]

Indexed keywords

AQUEOUS FLUIDS; ARC MAGMAS; ARC MAGMATISM; BLUESCHISTS; CHEMICAL FILTERS; COMPOSITIONAL HETEROGENEITY; ECLOGITES; FIRST-ORDER; HIGH FIELD STRENGTH ELEMENTS; INCOMPATIBLE ELEMENT; NORTHWEST CHINA; OCEAN CRUST; OCEANIC BASALTS; PROTOLITHS; SOURCE MATERIAL; SR-ND ISOTOPES; ULTRAHIGH-PRESSURE METAMORPHIC; ULTRAHIGH-PRESSURE METAMORPHISM; WESTERN TIANSHAN; WHITE MICA;

BARIUM; BASALT; CESIUM; ISOTOPES; LEAD; MICA; RARE EARTH ELEMENTS; RUBIDIUM; SEDIMENTARY ROCKS; SEDIMENTOLOGY; TRACE ELEMENTS;

STRONTIUM;

BLUESCHIST; ECLOGITE; HETEROGENEITY; METAMORPHIC ROCK; PETROGRAPHY; PROTOLITH; RARE EARTH ELEMENT; SUBDUCTION ZONE; TRACE ELEMENT; ULTRAHIGH PRESSURE METAMORPHISM;

TIEN SHAN;

EID: 84865154865     PISSN: 00167606     EISSN: 19432674     Source Type: Journal    
DOI: 10.1130/B30523.1     Document Type: Article

References (87)

1. Ai, Y.L., Zhang, L.F., Li, X.P., and Qu, J.F., 2006, Geochemical characteristics and tectonic implications of HP-UHP eclogites and blueschists in southwestern Tianshan, China: Progress in Natural Science, v. 16, no. 6, p. 624-632, doi:10.1080/10020070612330044.
2. Ando, A., Mita, N., and Terashima, S., 1987, 1986 values for fifteen GSJ rock reference samples: Igneous rock series: Geostandards Newsletter, v. 11, p. 159-166, doi:10.1111/j.1751-908X.1987.tb00023.x.
3. Bebout, G.E., 2007, Metamorphic chemical geodynamics of subduction zones: Earth and Planetary Science Letters, v. 260, p. 373-393, doi:10.1016/j.epsl.2007.05.050.
4. Becker, H., Jochum, K.P., and Carlson, R.W., 2000, Trace element fractionation during dehydration of eclogites from high-pressure terranes and the implications for ele ment fluxes in subduction zones: Chemical Geology, v. 163, p. 65-99, doi:10.1016/S0009-2541(99)00071-6
5. Beinlich, A., Klemd, R., John, T., and Gao, J., 2010, Traceelement mobilization during Ca-metasomatism along a major fluid conduit: Eclogitization of blueschist as a consequence of fluid-rock interaction: Geochimica et Cosmochimica Acta, v. 74, p. 1892-1922, doi:10.1016 /j.gca.2009.12.011.
6. Brandon, A.D., and Draper, D.S., 1996, Constraints on the origin of the oxidation state of mantle overlying subduction zones-An example from Simcoe, Washington, USA: Geochimica et Cosmochimica Acta, v. 60, p. 1739-1749, doi:10.1016/0016-7037(96)00056-7.
7. Cann, J.R., 1970, Rb, Sr, Y, Zr and Nb in some ocean floor basaltic rocks: Earth and Planetary Science Letters, v. 10, p. 7-11, doi:10.1016/0012-821X(70)90058-0.
8. Dilek, Y., and Furnes, H., 2011, Ophiolite genesis and global tectonics: Geochemical and tectonic fingerprinting of ancient oceanic lithosphere: Geological Society of America Bulletin, v. 123, p. 387-411, doi:10.1130 /B30446.1.
9. Donnelly, K.E., Goldstein, S.L., Langmuir, C.H., and Spiegelman, M., 2004, Origin of enriched ocean ridge basalts and implications for mantle dynamics: Earth and Planetary Science Letters, v. 226, p. 347-366, doi:10.1016 /j.epsl.2004.07.019.
10. El Korh, A., Schmidt, S.T., Ulianov, A., and Potel, S., 2009, Trace element partitioning in HP-LT metamorphic as-semblages during subduction-related metamorphism, Ile de Groix, France: A detailed LA-ICPMS study: Journal of Petrology, v. 50, p. 1107-1148, doi:10.1093 /petrology/egp034.
11. Feineman, M.D., Ryerson, F.J., DePaolo, D.J., and Plank, T., 2007, Zoisite-aqueous fluid trace element partitioning with implications for subduction zone fluid composition: Chemical Geology, v. 239, p. 250-265, doi:10.1016 /j.chemgeo.2007.01.008.
12. Gao, J., and Klemd, R., 2003, Formation of HP-LT rocks and their tectonic implications in the western Tianshan orogen, NW China: Geochemical and age constraints: Lithos, v. 66, p. 1-22, doi:10.1016/S0024-4937(02)00153-6.
13. Gao, J., Long, L.L., Qian, Q., Huang, D.Z., Su, W., and Klemd, R., 2006, South Tianshan: A late Paleozoic or a Triassic orogen?: Acta Petrolei Sinica, v. 22, no. 5, p. 1049-1061.
14. Gao, J., John, T., Klemd, R., and Xiong, X.M., 2007, Mobilization of Ti-Nb-Ta during subduction: Evidence from rutile-bearing dehydration segregations and veins hosted in eclogite, Tianshan, NW China: Geochimica et Cosmochimica Acta, v. 71, p. 4974-4996, doi:10.1016 /j.gca.2007.07.027.
15. Gao, J., Long, L.L., Klemd, R., Qian, Q., Liu, D.Y., Xiong, X.M., Su, W., Liu, W., Wang, Y.T., and Yang, F.Q., 2009, Tectonic evolution of the South Tianshan orogen and adjacent regions, NW China: Geochemical and age constraints of granitoid rocks: International Journal of Earth Sciences, v. 98, p. 1221-1238, doi:10.1007 /s00531-008-0370-8.
16. Hermann, J., 2002, Allanite: Thorium and light rare earth element carrier in subducted crust: Chemical Geology, v. 192, p. 289-306, doi:10.1016/S0009-2541 (02)00222-X.
17. Hermann, J., Spandler, C., Hack, A., and Korsakov, A.V., 2006, Aqueous fluids and hydrous melts in high-pressure and ultra-high pressure rocks: Implications for element transfer in subduction zones: Lithos, v. 92, p. 399-417, doi:10.1016/j.lithos.2006.03.055.
18. Hofmann, A.W., 1997, Mantle geochemistry: The message from oceanic volcanism: Nature, v. 385, p. 219-229, doi:10.1038/385219a0.
19. Hofmann, A.W., and Hart, S.R., 1978, An assessment of local and regional isotopic equilibrium in the mantle: Earth and Planetary Science Letters, v. 38, p. 44-62, doi:10.1016/0012-821X(78)90125-5.
20. Hofmann, A.W., Jochum, K.P., Seufert, M., and White, W.M., 1986, Nb and Pb in oceanic basalts: New constraints on mantle evolution: Earth and Planetary Science Letters, v. 79, p. 33-45, doi:10.1016/0012-821X(86)90038-5.
21. John, T., Scherer, E.E., Haase, K., and Schenk, V., 2004, Trace element fractionation during fluid-induced eclogitization in a subducting slab: Trace element and Lu-Hf-Sm-Nd isotope systematic: Earth and Planetary Science Letters, v. 227, p. 441-456, doi:10.1016/j.epsl .2004.09.009.
22. John, T., Klemd, R., Gao, J., and Garbe-Schönberg, C.D., 2008, Trace-element mobilization in slabs due to non steady-state fluid-rock interaction: Constraints from an eclogite-facies transport vein in blueschist (Tianshan, China): Lithos, v. 103, p. 1-24, doi:10.1016/j.lithos .2007.09.005.
23. Kelley, K.A., Plank, T., Ludden, J., and Staudigel, H., 2003, Composition of altered oceanic crust at ODP Sites 801 and 1149: Geochemistry, Geophysics, Geosystems, v. 4, doi:10.1029/2002GC000435.
24. Kelley, K.A., Plank, T., Farr, L., Ludden, J., and Staudigel, H., 2005, Subduction cycling of U, Th and Pb: Earth and Planetary Science Letters, v. 234, p. 369-383, doi:10.1016/j.epsl.2005.03.005.
25. Kessel, R., Schmidt, M.W., Ulmer, P., and Pettke, T., 2005, Trace element signature of subduction-Zone fluids, melts and supercritical liquids at 120-180 km depth: Nature, v. 437, p. 724-727, doi:10.1038/nature03971.
26. Klemd, R., 2003, Ultrahigh-pressure metamorphism in eclogites from the western Tianshan high-pressure belt (Xinjiang, western China)-Comment: The American Mineralogist, v. 88, p. 1153-1156.
27. Langmuir, D., 1978, Uranium solution-mineral equilibria at low temperatures with applications to sedimentary ore deposits: Geochimica et Cosmochimica Acta, v. 42, p. 547-569, doi:10.1016/0016-7037(78)90001-7.
28. Lavis, S., 2005, Recycling in Subduction Zones: Evidence from Eclogites and Blueschist of NW China [Ph.D. thesis]: Cardiff, UK, Cardiff University, 245 p.
29. Leake, B.E., Woolley, A.R., Arps, C.E.S., Birch, W.D., Gilbert, M.C., Grice, J.D., Hawthorne, F.C., Kato, A., Kisch, H.J., Krivovichev, V.G., Linthout, K., Laird, J., Mandarino, J.A., Maresch, W.V., Nickel, E.H., Rock, N.M.S., Schumacher, J.C., Smith, D.C., Stephenson, N.C.N., Ungaretti, L., Whittaker, E.J.W., and Youshi, G., 1997, Nomenclature of amphiboles: Report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names: Canadian Mineralogist, v. 35, p. 219-246.
30. Lee, C.-T.A., Brandon, A.D., and Norman, M., 2003, Vanadium in peridotites as a proxy for paleo-fO2 during partial melting: Prospects, limitations, and implications: Geochimica et Cosmochimica Acta, v. 67, p. 3045-3064, doi:10.1016/S0016-7037(03)00268-0.
31. Lee, C.-T.A., Leeman, W.P., Canil, D., and Li, Z.-X.A., 2005, Similar V/Sc systematics in MORB and arc ba-salts: Implications for the oxygen fugacities of their mantle source regions: Journal of Petrology, v. 46, p. 2313-2336, doi:10.1093/petrology/egi056.
32. Liu, J., Bohlen, S.R., and Ernst, W.G., 1996, Stability of hydrous phases in subducting oceanic crust: Earth and Planetary Science Letters, v.143, p.161-171, doi:10.1016/0012-821X(96)00130-6.
33. Lü, Z., Zhang, L.F., Du, J.X., and Bucher, K., 2008, Coesite inclusions in garnet from eclogitic rocks in western Tianshan, northwest China: Convincing proof of UHP metamorphism: The American Mineralogist, v. 93, p. 1845-1850, doi:10.2138/am.2008.2800.
34. Lü, Z., Zhang, L.F., Du, J.X., and Bucher, K., 2009, Petrology of coesite-bearing eclogite from Habutengsu Valley, western Tianshan, NW China, and its tectonometamorphic implication: Journal of Metamorphic Geology, v. 27, p. 773-787, doi:10.1111/j.1525-1314 .2009.00845.x.
35. Manning, C.E., 2004, The chemistry of subduction-zone fluids: Earth and Planetary Science Letters, v. 223, p. 1-16, doi:10.1016/j.epsl.2004.04.030.
36. Maulana, A., Ellis, D.J., and Christy, A.G., 2010, Petrology, geochemistry and tectonic evolution of the south Sulawesi basement rocks, Indonesia, in Proceedings of the Indonesian Petroleum Association: Indonesian Petroleum Association, IPA10-G-192.
37. McCulloch, M.T., and Gamble, J.A., 1991, Geochemical and geodynamical constraints on subduction zone magmatism: Earth and Planetary Science Letters, v. 102, p. 358-384, doi:10.1016/0012-821X(91)90029-H.
38. Morimoto, N., 1988, Nomenclature of pyroxenes: Mineralogy and Petrology, v. 39, p. 55-76, doi:10.1007/BF01226262.
39. Niu, Y.L., 2004, Bulk-rock major and trace element compositions of abyssal peridotites: Implications for mantle melting, melt extraction and post-melting processes beneath mid-ocean ridges: Journal of Petrology, v. 45, p. 2423-2458, doi:10.1093/petrology/egh068.
40. Niu, Y.L., 2009, Some basic concepts and problems on the petrogenesis of intra-plate ocean island basalts: Chinese Science Bulletin, v. 54, p. 4148-4160, doi:10.1007 /s11434-009-0668-3.
41. Niu, Y.L., and Batiza, R., 1997, Trace element evidence from seamounts for recycled oceanic crust in the eastern equatorial Pacific mantle: Earth and Planetary Science Letters, v. 148, p. 471-484, doi:10.1016/S0012-821X (97)00048-4.
42. Niu, Y.L., and O'Hara, M.J., 2003, Origin of ocean island basalts: A new perspective from petrology, geochemistry, and mineral physics considerations: Journal of Geophysical Research, v. 108, p. ECV5.1-ECV5.19, doi:10.1029/2002JB002048.
43. O'Nions, R.K., Evensen, N.M., and Hamilton, P.J., 1979, Geochemical modelling of mantle differentiation and crustal growth: Journal of Geophysical Research, v. 84, p. 6091-6101, doi:10.1029/JB084iB11p06091.
44. Page, F.Z., Essene, E.J., and Mukasa, S.B., 2005, Quartz exsolution in clinopyroxene is not proof of ultrahigh pressures: Evidence from eclogites from the Eastern Blue Ridge, Southern Appalachians, U.S.A.: The American Mineralogist, v. 90, p. 1092-1099, doi:10.2138/am .2005.1761.
45. Pawley, A.R., and Holloway, J.R., 1993, Water sources for subduction zone volcanism: New experimental constraints: Science, v. 260, p. 664-667, doi:10.1126/science .260.5108.664.
46. Peacock, S.M., 1993, The importance of blueschist-eclogite dehydration reactions in subducting oceanic crust: Geological Society of America Bulletin, v. 105, p. 684-694, doi:10.1130/0016-7606(1993)105<0684: TIOBED>2.3.CO;2.
47. Pearce, J.A., 1996, A user's guide to basalt discrimination diagrams, in Wyman, D.A., ed., Trace Element Geochemistry of Volcanic Rocks: Implications for Massive Sulphide Exploration: Geological Association of Canada Special Publication 12, p. 79-113.
48. Geochemical fingerprinting of oceanic basalts with applications to ophiolite classification and the search for Archean oceanic crust
49. Pearce, J.A., and Cann, J.R., 1973, Tectonic setting of basic volcanic rocks determined using trace element analyses: Earth and Planetary Science Letters, v. 19, p. 290300, doi:10.1016/0012-821X(73)90129-5.
50. Pilchin, A., 2005, The role of serpentinization in exhumation of highto ultra-high-pressure metamorphic rocks: Earth and Planetary Science Letters, v. 237, p. 815828, doi:10.1016/j.epsl.2005.06.053.
51. Pilet, S., Baker, M.B., and Stolper, E.M., 2008, Metasomatized lithosphere and the origin of alkaline lavas: Science, v. 320, p. 916-919, doi:10.1126/science .1156563.
52. Plank, T., and Langmuir, C.H., 1998, The chemical composition of subducting sediment and its consequences for the crust and mantle: Chemical Geology, v. 145, p. 325-394, doi:10.1016/S0009-2541(97)00150-2.
53. Poli, S., and Schmidt, M.W., 1997, The high-pressure stability of hydrous phases in orogenic belts: An experimental approach on eclogite-forming processes: Tectonophysics, v. 273, p. 169-184, doi:10.1016/S0040-1951(96)00293-4.
54. Poli, S., and Schmidt, M.W., 1998, The high-pressure stability of zoisite and phase relationships of zoisite-bearing assemblages: Contributions to Mineralogy and Petrology, v. 130, p. 162-175, doi:10.1007/s004100050357.
55. Poli, S., and Schmidt, M.W., 2002, Petrology of subducted slabs: Annual Review of Earth and Planetary Sciences, v. 30, p. 207-235, doi:10.1146/annurev.earth.30 .091201.140550.
56. Rapp, R.P., Irifune, T., Shimizu, N., Nishiyama, N., Norman, M.D., and Inoue, T., 2008, Subduction recycling of continental sediments and the origin of geochemically enriched reservoirs in the deep mantle: Earth and Planetary Science Letters, v. 271, p. 14-23, doi:10.1016 /j.epsl.2008.02.028.
57. Rebay, G., Powell, R., and Diener, J.F.A., 2010, Calculated phase equilibria for a MORB composition in a P-T range, 450-650 °C and 18-28 kbar: The stability of eclogite: Journal of Metamorphic Geology, v. 28, p. 635-645, doi:10.1111/j.1525-1314.2010.00882.x.
58. Reinecke, T., 1998, Prograde highto ultrahigh-pressure metamorphism and exhumation of oceanic sediments at Lago di Cignana, Zermatt-Saas zone, western Alps: Lithos, v. 42, p. 147-189, doi:10.1016 /S0024-4937(97)00041-8.
59. Schmidt, M.W., 1995, Lawsonite: Upper pressure stability and formation of higher density hydrous phases: The American Mineralogist, v. 80, p. 1286-1292.
60. Schmidt, M.W., and Poli, S., 1998, Experimentally based water budgets for dehydrating slabs and consequences for arc magma generation: Earth and Planetary Science Letters, v. 163, p. 361-379, doi:10.1016/S0012-821X (98)00142-3.
61. Schmidt, M.W., and Poli, S., 2003, Generation of mobile components during subduction of oceanic crust, in Rudnick, R.L., ed., The Crust: Treatise on Geochemistry, Volume 3: New York, Elsevier, p. 567-591.
62. Smit, M.A., Bröcker, M., and Scherer, E.E., 2008, Aragonite and magnesite in eclogites from the Jæren nappe, SW Norway: Disequilibrium in the system CaCO3-MgCO3 and petrological implications: Journal of Metamorphic Geology, v. 26, p. 959-979, doi:10.1111 /j.1525-1314.2008.00795.x.
63. Song, S.G., Su, L., Niu, Y.L., Lai, Y., and Zhang, L.F., 2009, CH4 inclusions in orogenic harzburgite: Evidence for reduced slab fluids and implication for redox melting in mantle wedge: Geochimica et Cosmochimica Acta, v. 73, p. 1737-1754, doi:10.1016/j.gca.2008.12.008.
64. Sorensen, S.S., Grossman, J.N., and Perfit, M.R., 1997, Phengite-hosted LILE enrichment in eclogite and related rocks: Implications for fluid-mediated mass transfer in subduction zones and arc magma genesis: Journal of Petrology, v. 38, p. 3-34, doi:10.1093 /petrology/38.1.3.
65. Spandler, C., Hermann, J., Arculus, R., and Mavrogenes, J., 2003, Redistribution of trace elements during prograde metamorphism from lawsonite blueschist to eclogite facies: Implications for deep subduction-zone processes: Contributions to Mineralogy and Petrology, v. 146, p. 205-222, doi:10.1007/s00410-003-0495-5.
66. Spandler, C., Hermann, J., Arculus, R., and Mavrogenes, J., 2004, Geochemical heterogeneity and element mobility in deeply subducted oceanic crust; insights from high-pressure mafic rocks from New Caledonia: Chemical Geology, v. 206, p. 21-42, doi:10.1016/j.chemgeo .2004.01.006.
67. Su, W., Gao, J., Klemd, R., Li, J.L., Zhang, X., Li, X.H., Chen, N.S., and Zhang, L., 2010, U-Pb zircon geo chronology of Tianshan eclogites in NW China: Implication for the collision between the Yili and Tarim blocks of the southwestern Altaids: European Journal of Mineralogy, v. 22, p. 473-478, doi:10.1127/0935-1221/2010 /0022-2040.
68. Sun, S.S., and McDonough, W.F., 1989, Chemical and iso topic systematics in ocean basalt: Implication for mantle composition and processes, in Saunders, A.D., and Norry, M.J., eds., Magmatism in the Ocean Basins: Geological Society of London Special Publication 42, p. 313-345, doi:10.1144/GSL.SP.1989.042.01.19.
69. Tatsumi, Y., and Kogiso, T., 2003, The subduction factory: Its role in the evolution of the Earth's crust and mantle, in Larter, R.D., and Leat, P.T., eds., Intra-Oceanic Subduction Systems: Tectonic and Magmatic Processes: Geological Society of London Special Publication 219, p. 55-80.
70. van der Straaten, F., Schenk, V., John, T., and Gao, J., 2008, Blueschist-facies rehydration of eclogites (Tian Shan, NW-China): Implications for fluid-rock interaction in the subduction channel: Chemical Geology, v. 255, p. 195-219, doi:10.1016/j.chemgeo.2008.06.037.
71. Volkova, N.I., and Budanov, V.I., 1999, Geochemical discrimination of metabasalt rocks of the Fan-Karategin transitional blueschist/greenschist belt, South Tianshan, Tajikistan: Seamount volcanism and accretionary tectonics: Lithos, v. 47, p. 201-216, doi:10.1016 /S0024-4937(99)00019-5.
72. Weaver, B.L., 1991, The origin of ocean island end-member compositions: Trace element and isotopic constraints: Earth and Planetary Science Letters, v. 104, p. 381397, doi:10.1016/0012-821X(91)90217-6.
73. White, W.M., 1985, Sources of oceanic basalts: Radiogenic isotopic evidence: Geology, v. 13, p. 115-118.
74. White, W.M., and Patchett, J., 1984, Hf-Nd-Sr isotopes and incompatible element abundances in island arcs: Implications for magma origins and crust-mantle evolution: Earth and Planetary Science Letters, v. 67, p. 167-185, doi:10.1016/0012-821X(84)90112-2.
75. Willbold, M., and Stracke, A., 2006, Trace element composition of mantle end-members: Implications for recycling of oceanic and upper and lower continental crust: Geochemistry, Geophysics, Geosystems, v. 7, doi:10.1029 /2005GC001005.
76. Winchester, J.A., and Floyd, P.A., 1977, Geochemical discrimination of different magma series and their differentiation products using immobile elements: Chemical Geology, v. 20, p. 325-343, doi:10.1016/0009-2541 (77)90057-2.
77. Wood, B.J., Bryndzia, L.T., and Johnson, K.E., 1990, Mantle oxidation state and its relationship to tectonic environment and fluid speciation: Science, v. 248, p. 337-345, doi:10.1126/science.248.4953.337.
78. Yu, Z.S., Robinson, P., and McGoldrick, P., 2001, An evaluation of methods for the chemical decomposition of geological materials for trace element determination using ICP-MS: Geostandards Newsletter, v. 25, p. 199-217, doi:10.1111/j.1751-908X.2001.tb00596.x.
79. Zack, T., and John, T., 2007, An evaluation of reactive fluid flow and trace element mobility in subducting slabs: Chemical Geology, v. 239, p. 199-216, doi:10.1016 /j.chemgeo.2006.10.020.
80. Zack, T., Rivers, T., and Foley, S.F., 2001, Cs-Rb-Ba systematics in phengite and amphibole: An assessment of fluid mobility at 2.0 GPa in eclogites from Trescolmen, Central Alps: Contributions to Mineralogy and Petrology, v. 140, p. 651-669, doi:10.1007/s004100000206.
81. Zhang, L.F., Gao, J., Ekebair, S., and Wang, Z.X., 2001, Low temperature eclogite facies metamorphism in western Tianshan, Xinjiang: Science in China, v. 44, p. 85-96, doi:10.1007/BF02906888.
82. Zhang, L.F., Ellis, D.J., and Jiang, W.B., 2002a, Ultrahigh-pressure metamorphism in western Tianshan, China: Part I. Evidence from inclusions of coesite pseudomorphs in garnet and from quartz exsolution lamellae in omphacite in eclogites: The American Mineralogist, v. 87, p. 853-860.
83. Zhang, L.F., Ellis, D.J., Williams, S., and Jiang, W.B., 2002b, Ultra-high pressure metamorphism in western Tianshan, China: Part II. Evidence from magnesite in eclogite: The American Mineralogist, v. 87, p. 861-866.
84. Zhang, L.F., Ellis, D.J., Arculus, R.J., Jiang, W., and Wei, C., 2003, 'Forbidden zone' subduction of sediments to 150 km depth-The reaction of dolomite to magnesite + aragonite in the UHP metamorphism metapelites from western Tianshan, China: Journal of Metamorphic Geology, v. 21, p. 523-529, doi:10.1046/j.1525-1314.2003.00460.x.
85. Zhang, L.F., Song, S.G., Liou, J.G., Ai, Y.L., and Li, X.P., 2005, Relict coesite exsolution in omphacite from western Tianshan eclogites, China: The American Mineralogist, v. 90, p. 181-186, doi:10.2138/am .2005.1587.
86. Zhang, L.F., Ai, Y.L., Li, X.P., Rubatto, D., Song, B., Williams, S., Song, S.G., Ellis, D., and Liou, J.G., 2007, Triassic collision of western Tianshan orogenic belt, China: Evidence from SHRIMP U-Pb dating of zircon from HP/UHP eclogitic rocks: Lithos, v. 96, p. 266-280, doi:10.1016/j.lithos.2006.09.012.
87. Zindler, A., and Hart, S., 1986, Chemical geodynamics: Annual Review of Earth and Planetary Sciences, v. 14, p. 493-571, doi:10.1146/annurev.ea.14.050186.002425.