Abstract
A suite of mainly spinel peridotite and subordinate pyroxenite xenoliths and megacrysts were studied in detail, enabling us to characterize upper mantle conditions and processes beneath the modern North American–Eurasian continental plate boundary. The samples were collected from 37-Ma-old basanites cropping out in the Main Collision Belt of the Chersky Range, Yakutia Republic (Russian Far East). The spinel lherzolites reflect a mantle sequence, equilibrated at temperatures of 890–1,025 °C at pressures of 1.1–2 GPa, with melt extraction estimated to be around 2–6 %. The spinel harzburgites are characterized by lower P–T equilibration conditions and estimated melt extraction up to 12 %. Minor cryptic metasomatic processes are recorded in the clinopyroxene trace elements, revealing that percolating hydrous fluid-rich melts and basaltic melts affected the peridotites. One of the lherzolites preserves a unique melt droplet with primary dolomite in perfect phase contact with Na-rich aluminosilicate glass and sodalite. On the basis of the well-constrained P–T frame of the xenolith suite, as well as the rigorously documented melt extraction and metasomatic history of this upper mantle section, we discuss how a carbonated silicate melt infiltrated the lherzolite at depth and differentiated into an immiscible carbonate and silicate liquid shortly before the xenolith was transported to the surface by the host basalt. Decreasing temperatures triggered crystallization of primary dolomite from the carbonate melt fraction and sodalite as well as quenched glass from the Na-rich aluminosilicate melt fraction. Rapid entrainment and transport to the Earth’s surface prevented decarbonatization processes as well as reaction phenomena with the host lherzolite, preserving this exceptional snapshot of upper mantle carbonatization and liquid immiscibility.
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References
Arai S (1994) Characterization of spinel peridotites by olivine-spinel compositional relationships: review and interpretation. Chem Geol 113:191–204
Brey GP, Köhler T (1990) Geothermobarometry in four-phase lherzolites II. New thermobarometers, and practical assessment of existing thermobarometers. J Petrol 31:1353–1378
Brooker RA (1998) The effect of CO2 saturation on immiscibility between silicate and carbonate liquids: an experimental study. J Petrol 39:1905–1915
Canil D (1990) Experimental study bearing on the absence of carbonate in mantle-derived xenoliths. Geology 18:1011–1013
Coltorti M, Bonadiman C, Hinton RW, Siena F, Upton BGJ (1999) Carbonatite metasomatism of the oceanic upper mantle: evidence from clinopyroxenes and glasses in ultramafic xenoliths of Grande Comore, Indian Ocean. J Petrol 40:133–165
Dalton JA, Wood BJ (1993) The partitioning of Fe and Mg between olivine and carbonate and the stability of carbonate under mantle conditions. Contrib Mineral Petrol 114:501–509
De Hoog JCM, Gall L, Cornell DH (2009) Trace-element geochemistry of mantle olivine and application to mantle petrogenesis and geothermobarometry. Chem Geol 270:196–215
Franke D, Krüger F, Klinge K (2000) Tectonics of the Laptev Sea–Moma ‘Rift’ region: investigation with seismologic broadband data. J Seismolog 4:99–116
Frezzotti M-L, Touret JLR, Lustenhouwer WJ, Neumann E-R (1994) Melt and fluid inclusions in dunite xenoliths from La Gomera, Canary Islands: tracking the mantle metasomatic fluids. Eur J Mineral 6:805–817
Fujita K, Cook DB, Hasegawa H, Forsyth D, Wetmiller R (1990) Seismicity and focal mechanisms of the Arctic region and the North American plate boundary in Asia. In: Grantz A, Johnson L, Sweeny JF (eds) The geology of North America: The Arctic Ocean Region: Geological Society of America, pp 644
Fujita K, Koz’min BM, Mackey KG, Riegel SA, McLean MS, Imaev VS (2009) Seismotectonics of the Chersky seismic belt, eastern Sakha Republic (Yakutia) and Magadan District, Russia. Stephan Müller Special Publication Series 4:117–145
Griffin WL, O’Reilly SY, Ryan CG (1999) The composition and origin of sub-continental lithospheric mantle. In: Fei Y, Bertka CM, Mysen BO (eds) Mantle petrology: field observations and high-pressure experimentation: a tribute to Francis R (Joe) Boyd: geochemical Society, Special Publications 6:13–43
Guzmics T, Mitchell R, Szabó C, Berkesi M, Milke R, Ratter K (2012) Liquid immiscibility between silicate, carbonate and sulfide melts in melt inclusions hosted in co-precipitated minerals from Kerimasi volcano (Tanzania): evolution of carbonated nephelinitic magma. Contrib Mineral Petrol 1–22. doi:10.1007/s00410-012-0728-6
Hamilton DL, Freestone IC, Dawson JB, Donaldson CH (1979) Origin of carbonatites by liquid immiscibility. Nature 279:52–54
Hauri EH, Shimizu N, Dieu JJ, Hart SR (1993) Evidence for hotspot-related carbonatite metasomatism in the oceanic upper mantle. Nature 365:221–227
Hellebrand E, Snow JE, Dick HJB, Hofmann AW (2001) Coupled major and trace elements as indicators of the extent of melting in mid-ocean-ridge peridotites. Nature 410:677–681
Hofmann AW (1988) Chemical differentiation of the earth: the relationship between mantle, continental crust, and oceanic crust. Earth Planet Sci Lett 90:297–314
Ionov DA (1998) Trace element composition of mantle-derived carbonates and coexisting phases in peridotite xenoliths from alkali basalts. J Petrol 39:1931–9141
Ionov DA, Harmer RE (2002) Trace element distribution in calcite-dolomite carbonatites from Spitskop: inferences for differentiation of carbonatite magmas and the origin of carbonates in mantle xenoliths. Earth Planet Sci Lett 198:495–510
Ionov DA, Dupuy C, O’Reilly SY, Kopylova MG, Genshaft YS (1993) Carbonated peridotite xenoliths from Spitsbergen: implications for trace element signature of mantle carbonate metasomatism. Earth Planet Sci Lett 119:283–297
Ionov DA, O’Reilly SY, Kopylova MG, Genshaft YS (1996) Carbonate-bearing mantle peridotite xenoliths from Spitsbergen: phase relationships, mineral compositions and trace element residence. Contrib Miner Petrol 125:375–392
Kjarsgaard BA (1998) Phase relations of a carbonated high CaO nephelinite at 0.2 and 0.5 GPa. J Petrol 39:2061–2075
Kogarko LN, Henderson CMB, Pacheco H (1995) Primary Ca-rich carbonatite magma and carbonate–silicate–sulphide liquid immiscibility in the upper mantle. Contrib Mineral Petrol 121:267–274
Köhler T, Brey GP (1990) Calcium exchange between olivine and clinopyroxene calibrated as a geothermobarometer for natural peridotites from 2 to 60 kb with applications. Geochim Cosmochim Acta 54:2375–2388
Layer PW, Newberry R, Fujita K, Parfenov L, Trunilina V, Bakharev A (2001) Tectonic setting of the plutonic belts of Yakutia, northeast Russia, based on 40Ar/39Ar geochronology and trace element geochemistry. Geology 29:167–170
Lee W-J, Wyllie PJ (1996) Liquid immiscibility in the join NaAlSi3O8-CaCO3 to 2.5 GPa and the origin of calciocarbonatite magmas. J Petrol 37:1125–1152
Lee W-J, Wyllie PJ (1998) Petrogenesis of carbonatite magmas from mantle to crust, constrained by the system CaO-(MgO + FeO*)-(SiO2 + Al2O3 + TiO2)-CO2. J Petrol 39:495–517
Lee C-T, Rudnick RL, McDonough WF, Horn I (2000) Petrologic and geochemical investigation of carbonates in peridotite xenoliths from northeastern Tanzania. Contrib Miner Petrol 139:470–484
Macdonald R, Kjarsgaard BA, Skilling IP, Davies GR, Hamilton DL, Black S (1993) Liquid immiscibility between trachyte and carbonate in ash flow tuffs from Kenya. Contrib Miner Petrol 114:276–287
Mackey KG, Fujita K, Ruff LJ (1998) The crustal thickness of northeast Russia. Tectonophysics 284:283–297
McDonough WF, Sun S (1995) The composition of the earth. Chem Geol 120:223–253
Mitchell RH (2009) Peralkaline nephelinite-natrocarbonate immiscibility and carbonatite assimilation at Oldoinyo Lengau, Tanzania. Contrib Mineral Petrol 158:589–598
Nokleberg WJ, Parfenov LM, Monger JWH, Norton IO, Khanchuk AI, Stone DB, Scotese CR, Scholl DW, Fujita K (2000) Phanerozoic tectonic evolution of the circum-North Pacific. Professional Paper 1626, US. Geological Survey pp 122
Norman MD (1998) Melting and metasomatism in the continental lithosphere: laser ablation ICPMS analyses of minerals in spinel lherzolites from eastern Australia. Contrib Miner Petrol 130:240–255
Sobolev NV (1977) Deep-seated inclusions in Kimberlites and the problem of the composition of the upper mantle. AmericanGeophysical Union, Washington, DC 279
Sweeney RJ, Prozesky V, Przybylowicz W (1995) Selected trace and minor element partitioning between peridotite minerals and carbonatite melts at 18–46 kb pressure. Geochim Cosmochim Acta 59:3671–3683
Tschegg C, Bizimis M, Schneider D, Akinin V, Ntaflos T (2011) Magmatism at the Eurasian-North American modern plate boundary: constraints from alkaline volcanism in the Chersky Belt (Yakutia). Lithos 125:825–835
Ulianov A, Müntener O, Ulmer P, Pettke T (2007) Entrained macrocryst minerals as a key to the source region of olivine nephelinites: Humberg, Kaiserstuhl, Germany. J Petrol 48:1079–1118
Wallace ME, Green DH (1988) An experimental determination of primary carbonatite magma composition. Nature 335:343–346
Wyllie PJ (1987) Discussion of recent papers on carbonated peridotite, bearing on mantle metasomatism and magmatism. Earth Planet Sci Lett 82:391–397
Yaxley GM, Green DH (1996) Experimental reconstruction of carbonatite metasomatism in spinel peridotite xenoliths from western Victoria, Australia. Earth Planet Sci Lett 107:305–317
Yaxley GM, Green DH, Kamenetsky V (1998) Carbonatite metasomatism in the southeastern Australian lithosphere. J Petrol 39:1917–1930
Acknowledgments
This work was financed by the FWF grant I201-N22 (PI: Th. Ntaflos). We thank A. Hugh N. Rice for his assistance at the SEM, Franz Kiraly for tuning the microprobe, Eugen Libowitzky for helping us with the Raman spectrometer and Christoph Kurta for his help with the laser ablation system. The constructive reviews by Michael Roden and Michel Gregoire as well as the editorial handling by Jochen Hoefs are gratefully acknowledged. We also would like to thank Hilary Downes for the English-language corrections.
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Tschegg, C., Ntaflos, T., Akinin, V.V. et al. Carbonate-rich melt infiltration in peridotite xenoliths from the Eurasian–North American modern plate boundary (Chersky Range, Yakutia). Contrib Mineral Petrol 164, 441–455 (2012). https://doi.org/10.1007/s00410-012-0746-4
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DOI: https://doi.org/10.1007/s00410-012-0746-4