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Formation of secondary olivine after orthopyroxene during hydration of mantle wedge: evidence from the Khantaishir Ophiolite, western Mongolia

  • Otgonbayar Dandar
  • Atsushi OkamotoEmail author
  • Masaoki Uno
  • Ryosuke Oyanagi
  • Takayoshi Nagaya
  • Ulziiburen Burenjargal
  • Tsuyoshi Miyamoto
  • Noriyoshi Tsuchiya
Original Paper
  • 370 Downloads

Abstract

Metaharzburgite and metadunite in the ultramafic body of the Naran Massif in the Khantaishir Ophiolite, western Mongolia, record multi-stage processes of serpentinization (antigorite, lizardite + brucite, then chrysotile). Bulk-rock chemistry and the compositions of primary olivine (P-olivine) and Cr-spinel suggest that the alteration occurred in the forearc mantle. In the metaharzburgite, a novel occurrence of fine-grained (10–50 μm) secondary olivine (S-olivine) takes the form of aggregates (a few millimeters across) with bands of antigorite. The S-olivine has higher Mg# values (0.96–0.98) than the P-olivine (Mg# = 0.92–0.94) and contains inclusions of clinopyroxene and magnetite. The P-olivine has been replaced by antigorite and magnetite. Mesh textures of lizardite + brucite are developed in both P- and S-olivine. The microtextures and chemical compositions of minerals suggest that S-olivine aggregates were formed by pseudomorphic replacement of orthopyroxene related to multi-stage hydration processes. Assuming the mantle wedge conditions beneath a thin crust, orthopyroxene was first replaced by S-olivine + talc at high temperatures (500–650 °C at ~ 0.5 GPa). With cooling to ca. 400–500 °C and fluid supply, talc transformed to antigorite with the release of silica. During this stage, P-olivine was also transformed to antigorite by consumption of silica released from orthopyroxene decomposition. At temperatures below 300 °C, lizardite + brucite ± magnetite formed from the remaining P- and S-olivine grains. The formation of S-olivine presented in this study contrasts with the commonly ascribed process of deserpentinization. Taking into account the geochemical data for the studied ultramafic rocks and those previously reported for mafic rocks, our results suggest that mantle wedge beneath thin crust was hydrated in response to continuous cooling and fluid supply from a subducting slab after subduction initiation.

Keywords

Secondary olivine Serpentinization Mantle wedge Pseudomorph after orthopyroxene Khantaishir ophiolite 

Notes

Acknowledgments

We thank O. Gerel, B. Munkhtsengel, and B. Batkhishig for introducing us to this field of study and for providing advice, and B. Undarmaa and D. Tsendbazar for help in the field. The comments of two anonymous reviewers and Jan de Hoog were valuable for improving the paper. This work was supported financially by JSPS KAKENHI grants 16H06347, 17H02981 [to A. O.], and JP25000009 [to N. T.].

References

  1. Arai S (1994) Characterization of spinel peridotites by olivine–spinel compositional relationships: review and interpretation. Chem Geol 113:191–204Google Scholar
  2. Arcay D, Tric E, Doin M-P (2005) Numerical simulations of subduction zones: effect of slab dehydration on the mantle wedge dynamics. Phys Earth Planet Inter 149:133–153Google Scholar
  3. Badarch G, Dickson-Cunningham W, Windley BF (2002) A new terrane subdivision for Mongolia: implications for the Phanerozoic crustal growth of Central Asia. J Asian Earth Sci 21:87–110Google Scholar
  4. Bostock MG, Hyndman RD, Rondenay S, Peacock SM (2002) An inverted continental Moho and serpentinization of the forearc mantle. Nature 417:536–538Google Scholar
  5. Bowin CO, Nalwalk AJ, Hersey JB (1996) Serpentinized peridotite from the north wall of the Puerto Rico trench. Geol Soc Am Bull 77:257–270Google Scholar
  6. Connolly JAD (2009) The geodynamic equation of state: what and how. Geochem Geophys Geosyst 10:Q10014Google Scholar
  7. De Hoog JCM, Hattori K, Jung H (2014) Titanium- and water-rich metamorphic olivine in high-pressure serpentinites from the Voltri Massif (Ligurian Alps, Italy): evidence for deep subduction of high-field strength and fluid-mobile elements. Contrib Mineral Petrol 167:1–15Google Scholar
  8. Debret B, Nicollet C, Andreani M, Schwartz S, Godard M (2013) Three steps of serpentinization in an eclogitized oceanic serpentinization front (Lanzo Massif—Western Alps). J Metamorph Geol 31:165–186Google Scholar
  9. Debret B, Bolfan-Casanova N, Padrón-Navarta JA, Martin-Hernandez F, Andreani M, Garrido CJ, Sánchez-Vizcaí VL, Gómez-Pugnaire MT, Munoz M, Trcera N (2015) Redox state of iron during high-pressure serpentinite dehydration. Contrib Mineral Petrol 169:36Google Scholar
  10. Demoux A, Kröner A, Liu D, Badarch G (2009) Precambrian crystalline basement in southern Mongolia as revealed by SHRIMP zircon dating. Int J Earth Sci 98:1365–1380Google Scholar
  11. Deschamps F, Godard M, Guillot S, Hattori K (2013) Geochemistry of subduction zone serpentinites: a review. Lithos 78:96–127Google Scholar
  12. Doin M, Henry P (2001) Subduction initiation and continental crust recycling: the roles of rheology and eclogitization. Tectonophysics 342:163–191Google Scholar
  13. Dungan MA (1979) Bastite pseudomorphs after orthopyroxene, clinopyroxene and tremolite. Can Mineral 17:729–740Google Scholar
  14. Evans BW (2004) The serpentinite multisystem revisited: chrysotile is metastable. Int Geol Rev 46:479–506Google Scholar
  15. Evans BW (2008) Control of the products of serpentinization by the Fe2+Mg−1 exchange potential of olivine and orthopyroxene. J Petrol 49:1873–1887Google Scholar
  16. Evans BW (2010) Lizardite versus antigorite serpentinite: magnetite, hydrogen, and life(?). Geology 38(10):879–882Google Scholar
  17. Evans KA, Powell R (2015) The effect of subduction on the sulphur, carbon and redox budget of lithospheric mantle. J Metamorph Geol 33:649–670Google Scholar
  18. Evans BW, Johannes W, Oterdoom Trommsdorf V (1976) Stability of chrysotile and antigorite in the serpentine multisystem. Schweiz Mineral Petrogr Mitt 56:79–93Google Scholar
  19. Evans KA, Powell R, Frost BR (2013) Using equilibrium thermodynamics in the study of metasomatic alteration, illustrated by an application to serpentinites. Lithos 168–169:67–84Google Scholar
  20. Frost BR (1985) On the stability of sulfides, oxides, and native metals in serpentinite. J Pet 26:31–63Google Scholar
  21. Frost BR, Beard SJ (2007) On silica activity and serpentinization. J Petrol 48:1351–1368Google Scholar
  22. Frost BR, Evans KA, Swapp SM, Beard SJ, Mothersole FE (2013) The process of serpentinization in dunite from New Caledonia. Lithos 178:24–39Google Scholar
  23. Gianola O, Schmidt WM, Jagoutz O, Sambuu O (2017) Incipient boninitic arc crust built on denudated mantle: the Khantaishir ophiolite (western Mongolia). Contrib Mineral Petrol 172:92Google Scholar
  24. Gresens RL (1967) Composition-volume relationships of metasomatism. Chem Geol 2:47–65Google Scholar
  25. Groppo C, Rinaudo C, Cairo S, Gastaldi D, Compagnoni R (2006) Micro-Raman spectroscopy for a quick and reliable identification of serpentine minerals from ultramafics. Eur J Mineral 18:319–329Google Scholar
  26. Guillot S, Hattori KH, De Sigoyer J, Nägler T, Auzende AL (2001) Evidence of hydration of the mantle wedge and its role in the exhumation of eclogites. Earth Planet Sci Lett 193:115–127Google Scholar
  27. Hacker BR, Peacock SM, Abers GA, Holloway SD (2003) Subduction factory 2. Are intermediate-depth earthquakes in subducting slabs linked to metamorphic dehydration reactions? J Geophys Res 108:2030Google Scholar
  28. Hattori KH, Guillot S (2007) Geochemical character of serpentinites associated with high- to ultrahigh-pressure metamorphic rocks in Alps, Cuba, and the Himalayas: recycling of elements in subduction zones. Geochem Geophys Geosyst 8:1–27Google Scholar
  29. Hermann J, Müntener O, Scambelluri M (2000) The importance of serpentinite mylonites for subduction and exhumation of oceanic crust. Tectonophysics 327:225–238Google Scholar
  30. Hirauchi K, Fukushima K, Kido M, Muto J, Okamoto A (2016) Reaction-induced rheological weakening enables oceanic plate subduction. Nat Commun 7:12550Google Scholar
  31. Holland TJB, Powell R (1998) An internally consistent thermodynamic data set for phases of petrological interest. J Metamorph Geol 16:309–343Google Scholar
  32. Hyndman RD, Peacock SM (2003) Serpentinization of the forearc mantle. Earth Planet Sci Lett 212:417–432Google Scholar
  33. Imai N, Terashima S, Itoh S, Ando A (1995) Compilation of analytical data for minor and trace elements in seventeen GSJ geochemical reference samples, “igneous rock series”. Geostand Newsl 19:135–213Google Scholar
  34. Jahn B, Wu F, Chen B (2000) Granitoids of the Central Asian Orogenic Belt and continental growth in the Phanerozoic. Trans R Soc Edinb 91:181–193Google Scholar
  35. Javkhlan O, Takasu A, Bat-Ulzii D, Kabir F (2013) Metamorphic pressure–temperature evolution of garnet-chloritoid schists from the Lake Zone, SW Mongolia. J Miner Petrol Sci 108:255–266Google Scholar
  36. Jian P, Kroner A, Jahn B, Windley FB, Shi Y, Zhang W, Zhang F, Miao L, Tomurhuu D, Liu D (2014) Zircon dating of Neoproterozoic and Cambrian ophiolites in West Mongolia and implications for the timing of orogenic processes in the central part of the Central Asian Orogenic Belt. Earth Sci Rev 133:62–93Google Scholar
  37. Jung H, Green HW, Dobrzhinetskaya FL (2004) Intermediate-depth earthquake faulting by dehydration embrittlement with negative volume change. Nature 428:545–549Google Scholar
  38. Katayama I, Kurosaki I, Hirauchi K (2010) Low silica activity for hydrogen generation during serpentinization: an example of natural serpentinites in the Mineoka ophiolite complex, central Japan. Earth Planet Sci Lett 298:199–204Google Scholar
  39. Kawahara H, Endo S, Wallis SR, Nagaya T, Mori H, Asahara Y (2016) Brucite as an important phase of the shallow mantle wedge: evidence from the Shiraga unit of the Sanbagawa subduction zone, SW Japan. Lithos 254–255:53–66Google Scholar
  40. Khain EV, Bibikova EV, Salnikova EB, Kröner A, Gibsher AS, Didenko AN, Degtyarev KE, Fedotova AA (2003) The Palaeo-Asian ocean in the Neoproterozoic and early Palaeozoic: new geochronologic data and palaeotectonic reconstructions. Precambrian Res 122:329–358Google Scholar
  41. Kimball KL, Spear FS, Dick HJB (1985) High-temperature alteration of abyssal ultramafics from the Islas Orcadas Fracture Zone, South Atlantic. Contrib Mineral Petrol 91:307–320Google Scholar
  42. Kodolanyi J, Pettke T, Spandler C, Kamber BS, Gmeling K (2012) Geochemistry of ocean floor and fore-arc serpentinites: constraints on the ultramafic input to subduction zones. J Petrol 53:235–270Google Scholar
  43. Li XP, Rahn M, Bucher K (2004) Serpentinites of the Zermatt-Saas ophiolite complex and their texture evolution. J Metamorph Geol 22:159–177Google Scholar
  44. López Sánchez-Vizcaíno V, Trommsdorff V, Gómez-Pugnaire MT, Garrido CJ, Müntener O, Connolly JAD (2005) Petrology of titanian clinohumite and olivine at the high-pressure breakdown of antigorite serpentinite to chlorite harzburgite (Almirez Massif, S. Spain). Contrib Mineral Petrol 149:627–646Google Scholar
  45. Majumdar AS, Hövelmann J, Vollmer C, Berndt J, Mondal SK, Putnis A (2016a) Formation of Mg-rich olivine pseudomorphs in serpentinized dunite from the Mesoarchean Nuasahi Massif, Eastern India: insights into the evolution of fluid composition at the mineral–fluid interface. J Petrol 57:3–26Google Scholar
  46. Majumdar AS, Hövelmann J, Mondal SK, Putnis A (2016b) The role of reacting solution and temperature on compositional evolution during harzburgite alteration: constraints from the Mesoarchean Nuasahi Massif (eastern India). Lithos 256–257:228–242Google Scholar
  47. Makishima A, Nakamura E (2006) Determination of major/minor and trace elements in silicate samples by ICP–QMS and ICP–SFMS applying isotope dilution–internal standardisation (ID–IS) and multi-stage internal standardisation. Geostand Geoanalyt Res 30:245–271Google Scholar
  48. Makishima A, Nakamura E, Nakano T (1999) Determination of zirconium, niobium, hafnium and tantalum at ng g-1 levels in geological materials by direct nebulisation of sample HF solution into FI–ICP–MS. Geostand Geoanaly Res 23:7–20Google Scholar
  49. Martin B, Fyfe WS (1970) Some experimental and theoretical observations on the kinetics of hydration reactions with particular reference to serpentinization. Chem Geol 6:185–202Google Scholar
  50. Matsumoto I, Tomurtogoo O (2003) Petrological characteristics of the Hantaishir Ophiolite Complex, Altai Region, Mongolia: coexistence of podiform chromitite and boninite. Gondwana Res 6:161–169Google Scholar
  51. McDonough WF, Sun S-S (1995) The composition of the Earth. Chem Geol 120:223–253Google Scholar
  52. Mével C (2003) Serpentinization of abyssal peridotites at mid-ocean ridges. Comptes Rendus Geosci 335:825–852Google Scholar
  53. Miyazaki T, Yamasaki S, Tsuchiya N, Okumura S, Yamada R, Nakamura M, Nagahashi Y, Yoshida T (2014) Major and trace element analyses of igneous rocks by polarizing energy dispersive X-ray fluorescence spectrometry (EDXRF). Jpn Mag Mineral Petrol Sci 43:47–53Google Scholar
  54. Moore DE, Rymer MJ (2007) Talc-bearing serpentinite and the creeping section of the San Andreas fault. Nature 448:795–797Google Scholar
  55. Murata K, Maekawa H, Ishii K, Mohammad YO, Yokose H (2009) Iron-rich stripe patterns in olivines of serpentinized peridotites from Mariana forearc seamounts, western Pacific. J Mineral Petrol Sci 104(3):199–203.  https://doi.org/10.2465/jmps.081022h CrossRefGoogle Scholar
  56. Nagaya T, Wallis SR, Kobayashi H, Michibayashi K, Mizukami T, Seto Y, Miyake A, Matsumoto M (2014) Dehydration breakdown of antigorite and the formation of B-type olivine CPO. Earth Planet Sci Lett 387:67–76Google Scholar
  57. Nakatani T, Nakamura M (2016) Experimental constraints on the serpentinization rate of fore-arc peridotites: implications for the upwelling condition of the slab-derived fluid. Geochem Geophys Geosyst 17:3393–3419Google Scholar
  58. Nozaka T (2005) Metamorphic history of serpentinite mylonites from the Happo ultramafic complex, central Japan. J Metamorph Geol 23:711–723Google Scholar
  59. Ogasawara Y, Okamoto A, Hirano N, Tsuchiya N (2013) Coupled reactions and silica diffusion during serpentinization. Geochim Cosmochim Act 119:212–230Google Scholar
  60. Okamoto A, Shimizu H (2015) Contrasting fracture patterns induced by volume-increasing and -decreasing reactions: implications for the progress of metamorphic reactions. Earth Planet Sci Lett 417:9–18Google Scholar
  61. Oyanagi R, Okamoto A, Harigane Y, Tsuchiya N (2018) Al-zoning of serpentine aggregates in mesh texture induced by metasomatic replacement reactions. J Petrol 59:613–634Google Scholar
  62. Padrón-Navarta JA, Sánchez-Vizcaí VL, Garrido CJ, Gómez-Pugnaire MT (2011) Metamorphic record of high-pressure dehydration of antigorite serpentinite to chlorite harzburgite in a subduction setting (Cerro del Almirez, Nevado-Filábride complex, Southern Spain). J Petrol 52:2047–2078Google Scholar
  63. Padrón-Navarta JA, Sánchez-Vizcaí VL, Hermann J, Connolly JAD, Garrido CJ, Gómez-Pugnaire MT, Marchesi C (2013) Tschermak’s substitution in antigorite and consequences for phase relations and water liberation in high-grade serpentinites. Lithos 178:186–196Google Scholar
  64. Peacock MS (1999) Hydrous minerals in the mantle wedge and the maximum depth of subduction thrust earthquakes. Geophys Res Lett 26:2517–2520Google Scholar
  65. Plümper O, Piazolo S, Austrheim H (2012a) Olivine pseudomorphs after serpentinized orthopyroxene record transient oceanic lithospheric mantle dehydration (Leka Ophiolite complex, Norway). J Petrol 53:1943–1968Google Scholar
  66. Plümper O, King HE, Vollmer C, Ramasse Q, Jung H (2012b) The legacy of crystal-plastic deformation in olivine high-diffusivity pathways during serpentinization. Contrib Mineral Petrol 163:701–724Google Scholar
  67. Plümper O, John T, Podladchikov YY, Vrijmoed JC, Scambelluri M (2016) Fluid escape from subduction zones controlled by channel-forming reactive porosity. Nat Geosci 10:150–156Google Scholar
  68. Ranero CR, Villaseñor A, Morgan JP, Weinrebe W (2005) Relationship between bend-faulting at trenches and intermediate-depth seismicity. Geochem Geophys Geosys.  https://doi.org/10.1029/2005gc000997 CrossRefGoogle Scholar
  69. Rinaudo C, Gastaldi D, Belluso E (2003) Characterization of chrysotile, antigorite, and lizardite by FT-Raman spectroscopy. Can Mineral 41:883–890Google Scholar
  70. Røyne A, Jamtveit B, Mathiesen J, Malthe-Sørenssen A (2008) Controls on rock weathering rates by reaction-induced hierarchical fracturing. Earth Planet Sci Lett 275:364–369Google Scholar
  71. Saumur B-M, Hattori KH, Guillot S (2010) Contrasting origins of serpentinites in a subduction complex, northern Dominican Republic. Geol Soc Am Bull 122:292–304Google Scholar
  72. Schwartz S, Guillot S, Reynard B, Lafay R, Debret B, Nicollet C, Lanari P, Auzende AL (2013) Pressure–temperature estimates of the lizardite/antigorite transition in high-pressure serpentinites. Lithos 178:197–210Google Scholar
  73. Schwarzenbach ME, Caddick MJ, Beard MJ, Bodnar RJ (2016) Serpentinization, element transfer, and the progressive development of zoning in veins: evidence from a partially serpentinized harzburgite. Contrib Mineral Petrol 171:75.  https://doi.org/10.1007/s00410-015-1219-3 CrossRefGoogle Scholar
  74. Sengör AMC, Natalin BA, Burtman VS (1993) Evolution of the Altaids tectonic collage and Palaeozoic crustal growth in Eurasia. Nature 364:299–307Google Scholar
  75. Seyfried WE, Pester N, Fu Q (2010) Phase equilibria controls on the chemistry of vent fluids from hydrothermal systems on slow spreading ridges: reactivity of plagioclase and olivine solutions and pH-silica connection. In: Rona PA, Devey CW, Dyment J, Murton B (eds) Diversity of hydrothermal systems on slow spreading ocean ridges. Geophysical Monograph Series 188:297–320Google Scholar
  76. Shimizu H, Okamoto A (2016) The roles of fluid transport and surface reaction in reaction-induced fracturing, with implications for the development of mesh textures in serpentinites. Contrib Mineral Petrol 171:73Google Scholar
  77. Tamura A, Arai S (2006) Harzburgite–dunite–orthopyroxenite suite as a record of suprasubduction zone setting for the Oman ophiolite mantle. Lithos 90:43–56Google Scholar
  78. Uno M, Kirby S (2019) Evidence for multiple stages of serpentinization from the mantle through the crust in the Redwood City Serpentinite mélange along the San Andreas Fault in California. Lithos 336–337:276–292Google Scholar
  79. Van Keken PE, Hacker RE, Syracuse ME, Abers GA (2011) Subduction factory: 4. Depth-dependent flux of H2O from subducting slabs worldwide. J Geophys Res 116:B011401Google Scholar
  80. Viti C, Mellini M, Rumori C (2005) Exsolution and hydration of pyroxenes from partially serpentinized harzburgites. Mineral Mag 69:491–508Google Scholar
  81. Windley FB, Alexeiev D, Xiao W, Kröner A, Badarch G (2007) Tectonic models for accretion of the Central Asian Orogenic Belt. J Geol Soc Lond 164:31–47Google Scholar
  82. Yamasaki S, Matsunami H, Takeda A, Yamaji I, Ogawa Y, Tsuchiya N (2011) Simultaneous determination of trace elements in soils and sediments by polarizing energy dispersive X-ray fluorescence spectrometry. Bunseki Kagaku 60:315–323Google Scholar
  83. Zonenshain LP, Kuzmin MI (1978) The Khan-Taishir ophiolitic complex of Western Mongolia, its petrology, origin and comparison with other ophiolitic complexes. Contrib Mineral Petrol 67:95–109Google Scholar

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© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Graduate School of Environmental StudiesTohoku UniversitySendaiJapan
  2. 2.School of Geology and Mining EngineeringMongolian University of Science and TechnologyUlaanbaatarMongolia
  3. 3.Center for Northeast Asian StudiesTohoku UniversitySendaiJapan

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