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Licensed Unlicensed Requires Authentication Published by De Gruyter January 3, 2017

Dissolving dolomite in a stable UHP mineral assemblage: Evidence from Cal-Dol marbles of the Dora-Maira Massif (Italian Western Alps)

Simona Ferrando, Chiara Groppo, Maria Luce Frezzotti, Daniele Castelli and Alexander Proyer
From the journal American Mineralogist


In deep and cold subduction such as that experienced by the UHP Units of the Western Alps, carbon dissolution is a relevant mechanism for carbon transfer from the slab into the mantle. The UHP impure Cal-Dol-marbles from the Dora-Maira Massif are studied to investigate the poorly known evolution of dolomite during deep subduction. Dolomite shows four stages of growth, from pre-Alpine to early-retrograde Alpine, coupled with chemical variations and distinct included mineral assemblages. To explain the evidence for growth and partial reabsorption of dolomite through HP prograde, UHP peak, and UHP early-retrograde Alpine metamorphism, a chemically simple marble (Cal, Dol, Di, Fo, and retrograde Atg, Tr, Mg-Chl) has been studied in detail. Microstructural relationships, coupled with mineral chemistry, indicate the growth of the assemblage dolomite+diopside+forsterite±aragonite during HP prograde, UHP peak, and UHP early-retrograde evolution.

Mixed-volatile P-T projection modeled in the simple CaO-(FeO)-MgO-SiO2-H2O-CO2 system and T-P-XCO2 petrogenetic grids and pseudosections predict the prograde (1.7 GPa, 560 °C) growth of dolomite in equilibrium with diopside and forsterite through the breakdown of antigorite+aragonite. In a H2O-CO2-saturated system, the subsequent HP-UHP evolution is predicted in the Di+Fo+Dol+Arg stability field in equilibrium with a dominantly aqueous COH fluid [0.0003 < XCO2 < 0.0008], whose composition is internally buffered by the equilibrium assemblage. Thermodynamic modeling indicates that neither the consumption nor the growth of new dolomite generations at UHP conditions can have been induced by metamorphic reactions. The abundant primary H2O+Cal+Dol+Cl-rich Tr+Cl-rich Tlc±chloride fluid inclusions present in UHP Cpx indicate that a dominantly aqueous, saline (salinity >26.3 wt% of NaCleq) COH fluid, containing Ca, Mg, and Si as dissolved cations was present during the growth of the UHP assemblage Dol+Cpx+Ol+Arg.

The complex zoning of dolomite is therefore interpreted as due to protracted episodes of dissolution and precipitation in saline aqueous fluids at HP/UHP conditions. Kinetics of dolomite dissolution in aqueous fluids is poorly known, and experimental and thermodynamic data under HP conditions are still lacking. Data on calcite indicate that dissolution at HP is enhanced by a prograde increase in both P and T, by high salinity in aqueous fluids, and/or low-pH conditions. In the studied marble, the P-T path and the occurrence of free high-saline fluids represent favorable conditions: (1) for the inferred dissolution-precipitation processes of the stable dolomite in a closed system, and (2) for possible migration of the dissolved carbonate, if the system would have been open during subduction.


S.F. thanks L. Martire and S. Cavagna for their assistance during CL sessions. We gratefully acknowledge Roberto Compagnoni for being a constant source of inspiration and for sharing his longstanding experience: we are indebted to him for most of our knowledge about the southern Dora-Maira Massif. We thank P. Lanari and an anonymous reviewer for their comments that greatly improved the manuscript, and D. Rubatto for editorial handling.

This work was financially supported by the Italian Prin project 2010PMKZX7 to D.C., S.F., M.L.F., C.G., by the University of Torino 2013 and 2014 funds (ex 60% grant) to D.C., S.F., C.G., and by the Austrian Science Found project P22479-N21 to A.P. The micro-Raman equipment was acquired by the Interdepartmental Center “G. Scansetti” for Studies on Asbestos and Other Toxic Particulates with a grant from Compagnia di San Paolo, Torino.

References Cited

Ague, J.J., and Nicolescu, S. (2014) Carbon dioxide released from subduction zones by fluid-mediated reactions. Nature Geoscience, 7, 355–360.10.1038/ngeo2143Search in Google Scholar

Ague, J.J., and Rye, D.M. (1999) Simple models of CO2 release from metacarbonates with implications for interpretation of directions and magnitudes of fluid flow in the deep crust. Journal of Petrology, 40, 1443–1462.10.1093/petroj/40.9.1443Search in Google Scholar

Baker, J., Holland, T., and Powell, R. (1991) Isograds in internally buffered systems without solid solutions: Principles and examples. Contributions to Mineralogy and Petrology, 106, 170–182.10.1007/BF00306432Search in Google Scholar

Ballévre, M., and Lagabrielle, Y. (1994) Garnet in blueschist-facies marbles from the Queyras Unit (Western Alps)—Its occurrence and its significance. Schweizerische Mineralogische und Petrographische Mitteilungen, 74, 203–212.Search in Google Scholar

Buob, A., Luth, R.W., Schmidt, M.W., and Ulmer, P. (2006) Experiments on CaCO3–MgCO3 solid solutions at high pressure and temperature. American Mineralogist, 91, 435–440.10.2138/am.2006.1910Search in Google Scholar

Busenberg, E., and Plummer, L.N. (1982) The kinetics of dissolution of dolomite in CO2-H2O systems at 1.5 to 65 °C and 0 to 1 atm PCO2. American Journal of Science, 282, 45–78.10.2475/ajs.282.1.45Search in Google Scholar

Caciagli, N.C., and Manning, C.E. (2003) The solubility of calcite in water at 5–16 kbar and 500–800 °C. Contributions to Mineralogy and Petrology, 146, 275–285.10.1007/s00410-003-0501-ySearch in Google Scholar

Carmichael, D.M. (1991) Univariant mixed-volatile reactions: pressure–temperature phase diagrams and reaction isograds. Canadian Mineralogist, 29, 741–754.Search in Google Scholar

Carswell, D.A., and van Roermund, H.L.M. (2005) On multi-phase mineral inclusions associated with microdiamond formation in mantle-derived peridotite lens at Bardane on Fi⊘rtoft, west Norway. European Journal of Mineralogy, 17, 31–42.10.1127/0935-1221/2005/0017-0031Search in Google Scholar

Castelli, D. (1991) Eclogitic metamorphism in carbonate rocks: The example of impure marbles from the Sesia-Lanzo Zone, Italian Western Alps. Journal of Metamorphic Geology, 9, 61–77.10.1111/j.1525-1314.1991.tb00504.xSearch in Google Scholar

Castelli, D., Rolfo, F., Groppo, C., and Compagnoni, R. (2007) Impure marbles from the UHP Brossasco-Isasca Unit (Dora-Maira Massif, western Alps): Evidence for Alpine equilibration in the diamond stability field and evaluation of the X(CO2) fluid evolution. Journal of Metamorphic Geology, 25, 587–603.10.1111/j.1525-1314.2007.00716.xSearch in Google Scholar

Castelli, D., Compagnoni, R., Lombardo B., Angiboust S., Balestro G., Ferrando S., Groppo C., Hirajima T., and Rolfo F. (2014) Crust-mantle interactions during subduction of oceanic and continental crust. Geological Field Trips, 6, 73 pp.10.3301/GFT.2014.03Search in Google Scholar

Chopin, C. (1984) Coesite and pure pyrope in high-grade blueschists of the westem Alps: A first record and some consequences. Contributions to Mineralogy and Petrology, 86, 107–118.10.1007/BF00381838Search in Google Scholar

Compagnoni, R., and Hirajima, T. (2001) Superzoned garnets in the coesite-bearing Brossasco-Isasca Unit, Dora-Maira massif, Western Alps, and the origin of the whiteschists. Lithos, 57, 219–236.10.1016/S0024-4937(01)00041-XSearch in Google Scholar

Compagnoni, R., Hirajima, T., and Chopin, C. (1995) Ultra-high-pressure metamorphic rocks in the Western Alps. In R.G. Coleman and X. Wang, Eds., Ultrahigh pressure metamorphism, 206–243. Cambridge University Press.10.1017/CBO9780511573088.008Search in Google Scholar

Compagnoni, R., Rolfo, F., Groppo, C., Hirajima, T., and Turello, R. (2004) Mapping of Alpine rocks characterized by “HP” to “UHP” metamorphic overprint in the Southern Dora-Maira Massif (Western Alps). In G. Pasquaré, C. Venturini, and G. Groppelli, Eds., Mapping geology in Italy, map 34, 287–294. APAT–Dipartimento Difesa del Suolo, Servizio Geologico d’Italia, Roma.Search in Google Scholar

Compagnoni, R., Rolfo, F., Groppo, C., Hirajima, T., and Turello, R. (2012) Geological map of the ultra-high pressure Brossasco-Isasca unit (Western Alps, Italy). Journal of Maps, 8, 465–472.10.1080/17445647.2012.744367Search in Google Scholar

Connolly, J.A.D. (1990) Multivariable phase diagrams:An algorithm based on generalize thermodynamics. American Journal of Science, 290, 666–718.10.2475/ajs.290.6.666Search in Google Scholar

——— (2005) Computation of phase equilibria by linear programming: A tool for geodynamic modeling and its application to subduction zone decarbonation. Earth and Planetary Science Letters, 236, 524–541.10.1016/j.epsl.2005.04.033Search in Google Scholar

——— (2009) The geodynamic equation of state: What and how. Geochemistry Geophysics Geosystems, 10, Q10014.Search in Google Scholar

Connolly, J.A.D., and Trommsdorff, V. (1991) Petrogenetic grids for metacarbonate rocks: Pressure–temperature phase-diagrams for mixed-volatile systems. Contributions to Mineralogy and Petrology, 108, 93–105.10.1007/BF00307329Search in Google Scholar

Cook-Kollars, J., Bebout, G.E., Collins, N.C., Angiboust, S., and Agard, P. (2014) Subduction zone metamorphic pathway for deep carbon cycling: I. Evidence from HP/UHP metasedimentary rocks, Italian Alps. Chemical Geology, 386, 31–48.10.1016/j.chemgeo.2014.07.013Search in Google Scholar

Cossio, R., Borghi, A., and Ruffini, R. (2002) Quantitative modal determination of geological samples based on X-ray multielemental map acquisition. Microsccopy and Microanalysis, 8, 139–149.10.1017/S1431927601020062Search in Google Scholar

Craw, D., and Norris, J.R. (1993) Grain boundary migration of water and carbon dioxide during uplift of garnet-zone Alpine Schist, New Zealand. Journal of Metamorphic Geology, 11, 371–378.10.1111/j.1525-1314.1993.tb00154.xSearch in Google Scholar

Dasgupta, R., and Hirschmann, M.M. (2010) The deep carbon cycle and melting in Earth’s interior. Earth and Planetary Science Letters, 298, 1–13.10.1016/j.epsl.2010.06.039Search in Google Scholar

Dasgupta, R., Hirschmann, M.M., and Dellas, N. (2005) The effect of bulk composition on the solidus of carbonated eclogite from partial melting experiments at 3 GPa. Contributions to Mineralogy and Petrology, 149, 288–305.10.1007/s00410-004-0649-0Search in Google Scholar

Davis, N.E., Newman, J., Wheelock, P.B., and Kronenberg, A.K. (2011) Grain growth kinetics of dolomite, magnesite and calcite: a comparative study. Physics and Chemistry of Minerals, 38, 123–138.10.1007/s00269-010-0389-9Search in Google Scholar

Di Vincenzo, G., Tonarini, S., Lombardo, B., Castelli, D., and Ottolini, L. (2006) Comparison of 40Ar-39Ar and Rb-Sr data on phengites from the UHP Brossasco-Isasca Unit (Dora Maira Massif, Italy): Implications for dating white mica. Journal of Petrology, 47, 1439–1465.10.1093/petrology/egl018Search in Google Scholar

Dobrzhinetskaya, L.F., Green, H.W., Bozhilov, N.K., Mitchell, T.E., and Dickerson, R.M. (2003) Crystallization environment of Kazakhstan microdiamond: Evidence from nanometric inclusions and mineral associations. Journal of Metamorphic Geology, 21, 425–437.10.1046/j.1525-1314.2003.00452.xSearch in Google Scholar

Dobrzhinetskaya, L.F., Wirth, R., and Green, H.W. (2007) A look inside of diamond forming media in deep subduction zones. Proceedings of the National Academy of Sciences, 104, 9128–9132.10.1073/pnas.0609161104Search in Google Scholar

Dolejš, D., and Manning, C.E. (2010) Thermodynamic model for mineral solubility in aqueous fluids: Theory, calibration and application to model fluid-flow systems. Geofluids, 10, 20–40.10.1002/9781444394900.ch3Search in Google Scholar

Droop, J.T.R. (2013) Paragonite in marbles from the Tauern Window, Austria: Compositional and thermobaric controls. Lithos, 162-163, 1–13.10.1016/j.lithos.2012.12.013Search in Google Scholar

Duchêne, S., Blichert-Toft, J., Luais, B., Télouk, P., Lardeaux, J.M., and Albarede, F. (1997) The Lu-Hf dating of garnets and the ages of the Alpine high-pressure metamorphism. Nature, 387, 586–589.10.1038/42446Search in Google Scholar

Facq, S., Daniel, I., Montagnac, G., Cardon, H., and Sverjensky, D.A. (2014) In situ Raman study and thermodynamic model of aqueous carbonate speciation in equilibrium with aragonite under subduction zone conditions. Geochimica et Cosmochimica Acta, 132, 375–390.10.1016/j.gca.2014.01.030Search in Google Scholar

Fein, J., and Walther, J.V. (1989) Calcite solubility and speciation in supercritical NaCl–HCl aqueous fluids. Contributions to Mineralogy and Petrology, 103, 317–324.10.1007/BF00402918Search in Google Scholar

Ferrando, S., Frezzotti, M.L., Dallai, L., and Compagnoni, R. (2005) Multiphase solid inclusions in UHP rocks (Su-Lu, China): Remnants of supercritical silicate-rich aqueous fluids released during continental subduction. Chemical Geology, 223, 68–81.10.1016/j.chemgeo.2005.01.029Search in Google Scholar

Ferrando, S., Frezzotti, M.L., Petrelli, M., and Compagnoni, R. (2009) Metasomatism of continental crust during subduction: The UHP whiteschists from the Southern Dora-Maira Massif (Italian Western Alps). Journal of Metamorphic Geology, 27, 739–756.10.1111/j.1525-1314.2009.00837.xSearch in Google Scholar

Ferraris, C., Castelli, D., and Lombardo, B. (2005) SEM/TEM-AEM characterization of micro- and nano-scale zonation in phengite from a UHP Dora-Maira marble: Petrologic significance of armoured Si-rich domains. European Journal of Mineralogy, 17, 453–464.10.1127/0935-1221/2005/0017-0453Search in Google Scholar

Ferry, J.M. (1983) On the control of temperature, fluid composition and reaction progress during metamorphism. American Journal of Science, 283A, 201–232.Search in Google Scholar

Franzolin, E., Schmidt, M.W., and Poli, S. (2011) Ternary Ca–Fe–Mg carbonates: Subsolidus phase relations at 3.5 GPa and a thermodynamic solid solution model including order/disorder. Contributions to Mineralogy and Petrology, 161, 213–227.10.1007/s00410-010-0527-xSearch in Google Scholar

Frezzotti, M.L., and Ferrando, S. (2015) The chemical behavior of fluids released during deep subduction based on fluid inclusions. American Mineralogist, 100, 352–377.10.2138/am-2015-4933Search in Google Scholar

Frezzotti, M.L., Selverstone, J., Sharp, Z.D., and Compagnoni, R. (2011) Carbonate dissolution during subduction revealed by diamond-bearing rocks from the Alps. Nature Geoscience, 4, 703–706.10.1038/ngeo1246Search in Google Scholar

Frezzotti, M.L., Huizenga, J.M., Compagnoni, R., and Selverstone, J. (2014) Diamond formation by carbon saturation in C–O–H fluids during cold subduction of oceanic lithosphere. Geochimica et Cosmochimica Acta, 143, 68–86.10.1016/j.gca.2013.12.022Search in Google Scholar

Fu, B., Touret, J.L.R., and Zheng, Y.F. (2003) Remnants of pre-metamorphic fluid and oxygen-isotopic signatures in eclogites and garnet clinopyroxenite from the Dabie-Sulu terranes, eastern China. Journal of Metamorphic Geology, 21, 561–578.10.1046/j.1525-1314.2003.00464.xSearch in Google Scholar

Galvez, M.E., Manning, C.E., Connolly, J.A.D., and Rumble, D. (2015) The solubility of rocks in metamorphic fluids: A model for rock-dominated conditions to upper mantle pressure and temperature. Earth and Planetary Science Letters, 430, 486–498.10.1016/j.epsl.2015.06.019Search in Google Scholar

Gao, J., and Klemd, R. (2001) Primary fluids entrapped at blueschist to eclogite transition: Evidence from the Tianshan meta-subduction complex in northwestern China. Contributions to Mineralogy and Petrology, 142, 1–14.10.1007/s004100100275Search in Google Scholar

Gao, X.Y., Zheng, Y.F., Chen, Y.X., and Hu, Z. (2014) Composite carbonate and silicate multiphase solid inclusions in metamorphic garnet from ultrahigh-P eclogite in the Dabie orogen. Journal of Metamorphic Geology, 32, 961–980.10.1111/jmg.12102Search in Google Scholar

Gauthiez-Putallaz, L., Rubatto, D., and Hermann, J. (2016) Dating prograde fluid pulses during subduction by in situ U–Pb and oxygen isotope analysis. Contributions to Mineralogy and Petrology, 171, article 15, 20 pp.10.1007/s00410-015-1226-4Search in Google Scholar

Gebauer, D., Schertl, H.-P., Brix, M., and Schreyer, W. (1997) 35 Ma old ultrahigh-pressure metamorphism and evidence for very rapid exhumation in the Dora Maira Massif, Western Alps. Lithos, 41, 5–24.10.1016/S0024-4937(97)82002-6Search in Google Scholar

Gorman, P.J., Kerrick, D.M., and Connolly J.A.D. (2006) Modeling open system metamorphic decarbonation of subducting slabs. Geochemistry, Geophysics, Geosystems, 7, Q04007.10.1029/2005GC001125Search in Google Scholar

Grassi, D., and Schmidt, M.W. (2011) Melting of carbonated pelites at 8–13 GPa: Generating K-rich carbonatites for mantle metasomatism. Contributions to Mineralogy and Petrology, 162, 169–191.10.1007/s00410-010-0589-9Search in Google Scholar

Greenwood, H.J. (1975) Buffering of pore fluids by metamorphic reactions. American Journal of Science, 275, 573–593.10.2475/ajs.275.5.573Search in Google Scholar

Groppo, C., Castelli, D., and Rolfo, F. (2007a) HT, pre-Alpine relics in a spinel-bearing dolomite marble from the UHP Brossasco-Isasca Unit (Dora-Maira Massif, western Alps, Italy). Periodico di Mineralogia, 76, 155–168.Search in Google Scholar

Groppo, C., Lombardo, B., Castelli, D., and Compagnoni, R. (2007b) Exhumation history of the UHPM Brossasco-Isasca Unit, Dora-Maira Massif, as inferred from a phengite-amphibole eclogite. International Geology Review, 49, 142–168.10.2747/0020-6814.49.2.142Search in Google Scholar

Habermann, D., Neuser, R.D., and Richter, D.K. (1996) REE-activated cathodoluminescence of calcite and dolomite: High-resolution spectrometric analysis of CL emission (HRS-CL). Sedimentary Geology, 101, 1–7.10.1016/0037-0738(95)00086-0Search in Google Scholar

——— (1998) Low limit of Mn2+-activated cathodoluminescence of calcite: State of the art. Sedimentary Geology, 116, 13–24.10.1016/S0037-0738(97)00118-8Search in Google Scholar

Hammouda, T., Andrault, D., Koga, K., Katsura, T., and Martin, A. (2011) Ordering in double carbonates and implications for processes at subduction zones. Contributions to Mineralogy and Petrology, 161, 439–450.10.1007/s00410-010-0541-zSearch in Google Scholar

Hardie, L.A. (1987) Dolomitization: A critical view of some current views: Journal of Sedimentary Research, 57, 166–183.10.1306/212F8AD5-2B24-11D7-8648000102C1865DSearch in Google Scholar

Hermann, J. (2003) Experimental evidence for diamond-facies metamorphism in the Dora Maira massif. Lithos, 70, 163–182.10.1016/S0024-4937(03)00097-5Search in Google Scholar

——— (2003) Carbon recycled into the deep Earth: Evidence from dolomite dissociation in subduction-zone rocks: Comment. Geology, 31, e4–e5.10.1130/0091-7613-31.1.e4Search in Google Scholar

Hewitt, D.A. (1973) The metamorphism of micaceous limestones from South-Central Connecticut. American Journal of Science, 273A, 444–469.Search in Google Scholar

Holland, T.J.B., and Powell, R. (1998) An internally consistent thermodynamic data set for phases of petrologic interest. Journal of Metamorphic Geology, 16, 309–343.10.1111/j.1525-1314.1998.00140.xSearch in Google Scholar

Hwang, S., Chu, H., Yui, T., Shen, P., Schertl, H.P., Liou, J.G., and Sobolev, S.V. (2006) Nanometer-size P/K-rich silica glass (former melt) inclusions in microdiamond from the gneisses of Kokchetav and Erzgebirge massifs: Diversified characteristics of the formation media of metamorphic microdiamond in UHP rocks due to host-rock buffering. Earth and Planetary Science Letters, 243, 94–106.10.1016/j.epsl.2005.12.015Search in Google Scholar

Ishida, H., Ogasawara, Y., Ohsumi, K., and Saito, A. (2003) Two stage growth of microdiamond in UHP dolomite marble from Kokchetav Massif, Kazakhstan. Journal of Metamorphic Geology, 21, 515–522.10.1046/j.1525-1314.2003.00459.xSearch in Google Scholar

Jarc, S., and Zupancic, N. (2009) A cathodoluminescence and petrographical study of marbles from the Pohorje area in Slovenia. Chemie der Erde, 69, 75–80.10.1016/j.chemer.2008.01.001Search in Google Scholar

Kato, T., Enami, M., and Zhai, M. (1997) Ultra-high-pressure (UHP) marble and eclogite in the Su-Lu UHP terrane, eastern China. Journal of Metamorphic Geology, 15, 169–182.10.1111/j.1525-1314.1997.00013.xSearch in Google Scholar

Kelemen, P.B., and Manning, C.E. (2015) Reevaluating carbon fluxes in subduction zones, what goes down, mostly comes up. Proceedings of the National Academy of Sciences, 112, E3997–E4006.10.1073/pnas.1507889112Search in Google Scholar

Kerrick, D.M. (1974) Review of mixed-volatile (H2O-CO2) equilibria. American Mineralogist, 59, 729–762.Search in Google Scholar

Kerrick, D.M., and Connolly, J.A.D. (2001a) Metamorphic devolatilization of subducted marine sediments and the transport of volatiles into the Earth’s mantle. Nature, 411, 293–296.10.1038/35077056Search in Google Scholar

——— (2001b) Metamorphic devolatilization of subducted oceanic metabasalts: Implications for seismicity, arc magmatism and volatile recycling. Earth and Planetary Science Letters, 189, 19–29.10.1016/S0012-821X(01)00347-8Search in Google Scholar

King, H.E., and Putnis, C.V. (2013) Direct observations of the influence of solution composition on magnesite dissolution. Geochimica et Cosmochimica Acta, 109, 113–126.10.1016/j.gca.2013.01.032Search in Google Scholar

Korsakov, A.V., and Hermann, J. (2006) Silicate and carbonate melt inclusions associated with diamond in deeply subducted carbonate rocks. Earth and Planetary Science Letters, 241, 104–118.10.1016/j.epsl.2005.10.037Search in Google Scholar

Korsakov, A.V., De Gussem, K., Zhukov, V.P., Perraki, M., Vandenabeele, P., and Golovin, A.V. (2009) Aragonite-calcite-dolomite relationships in UHPM polycrystalline carbonate inclusions from the Kokchetav Massif, northern Kazakhstan. European Journal of Mineralogy, 21, 1301–1311.10.1127/0935-1221/2009/0021-1992Search in Google Scholar

Li, J.L., Klemd, R., Gao, J., and Meyer, M. (2014) Compositional zoning in dolomite from lawsonite-bearing eclogite (SW Tianshan, China): Evidence for prograde metamorphism during subduction of oceanic crust. American Mineralogist, 99, 206–217.10.2138/am.2014.4507Search in Google Scholar

Liu, P., Wu, Y., Chen, Y., Zhang, J., and Jin, Z. (2015) UHP impure marbles from the Dabie Mountains: Metamorphic evolution and carbon cycling in continental subduction zones. Lithos, 212–215, 280–297.10.1016/j.lithos.2014.11.018Search in Google Scholar

Luth, R.W. (2001) Experimental determination of the reaction aragonite + magnesite = dolomite at 5 to 9 GPa. Contributions to Mineralogy and Petrology, 141, 222–232.10.1007/s004100100238Search in Google Scholar

Manning, C.E., Shock, E.L., and Sverjensky, D.A. (2013) The chemistry of carbon in aqueous fluids at crustal and upper-mantle conditions: Experimental and theoretical constraints. Reviews in Mineralogy and Geochemistry, 75, 109–148.10.1515/9781501508318-007Search in Google Scholar

Martinez, I., Zhang, J.Z., and Reeder, R.J. (1996) In situ X-ray diffraction of aragonite and dolomite at high pressure and high temperature; evidence for dolomite breakdown to aragonite and magnesite. American Mineralogist, 81, 611–624.10.2138/am-1996-5-608Search in Google Scholar

Martinez, I., Sanchez-Valle, C., Daniel, I., and Reynard, B. (2004) High-pressure and high-temperature Raman spectroscopy of carbonate ions in aqueous solution. Chemical Geology, 207, 47–58.10.1016/j.chemgeo.2004.02.003Search in Google Scholar

Massonne, H.J. (2011) Phase relations of siliceous marbles at ultrahigh pressure based on thermodynamic calculations: examples from the Kokchetav Massif, Kazakhstan and the Sulu terrane, China. Geological Journal, 46, 114–125.10.1002/gj.1230Search in Google Scholar

Molina, J-F., and Poli, S. (2000) Carbonate stability and fluid composition in subducted oceanic crust: an experimental study on H2O-CO2-bearing basalts. Earth and Planetary Science Letters, 176, 295–310.10.1016/S0012-821X(00)00021-2Search in Google Scholar

Morlidge, M., Pawley, A., and Droop, G. (2006) Double carbonate breakdown reactions at high pressures: An experimental study in the system CaO–MgO–FeO–MnO–CO2. Contributions to Mineralogy and Petrology, 152, 365–373.10.1007/s00410-006-0112-5Search in Google Scholar

Mposkos, E., Baziotis, I., Proyer, A., and Hoinkes, G. (2006) Dolomitic marbles from the ultrahighpressure metamorphic Kimi complex in Rhodope, N.E. Greece. Mineralogy and Petrology, 88, 341–362.10.1007/s00710-006-0159-zSearch in Google Scholar

Mposkos, E., Perraki, M., and Palikari, S. (2009) Single and multiphase inclusions in metapelitic garnets of the Rhodope Metamorphic Province, NE Greece. Spectrochimica Acta Part A: molecular and biomolecular spectroscopy, 73, 477–483.10.1016/j.saa.2008.12.035Search in Google Scholar

Mposkos, E., Baziotis, I., and Proyer, A. (2010) Metamorphic reprocessing of a serpentinized carbonate-bearing peridotite after detachment from the mantle wedge: A P–T path constrained from textures and phase diagrams in the system CaO–MgO–Al2O3–SiO2–CO2–H2O. Lithos, 118, 349–364.10.1016/j.lithos.2010.05.009Search in Google Scholar

Naemura, K., Hirajima, T., and Svojtka, M. (2009) The pressure-temperature path and the origin of phlogopite in spinel-garnet peridotites from the Blanský Les Massif of the Moldanubian Zone, Czech Republic. Journal of Petrology, 50, 1795–1827.10.1093/petrology/egp052Search in Google Scholar

Newton, R.C., and Manning, C.E. (2002) Experimental determination of calcite solubility in H2O-NaCl solutions at deep crust/upper mantle pressures and temperatures: Implications for metasomatic processes in shear zones. American Mineralogist, 87, 1401–1409.10.2138/am-2002-1016Search in Google Scholar

Ogasawara, Y., and Aoki, K. (2005) The role of fluid for diamond-free UHP dolomitic marble from the Kokchetav Massif. International Geology Review, 47, 1178–1193.10.2747/0020-6814.47.11.1178Search in Google Scholar

Ogasawara, Y., Zhang, R.Y., and Liou, J.G. (1998) Petrogenesis of dolomitic marbles from Rongcheng in the Su-Lu ultrahigh-pressure metamorphic terrane, eastern China. Island Arc, 7, 82–97.10.1046/j.1440-1738.1998.00177.xSearch in Google Scholar

Omori, S., Liou, J.G., Zhang, R.Y., and Ogasawara, Y. (1998) Petrogenesis of impure dolomitic marble from the Dabie Mountains, central China. Island Arc, 7, 98–114.10.1046/j.1440-1738.1998.00189.xSearch in Google Scholar

Pan, D., Spanu, L., Harrison, B., Sverjensky, D.A., and Galli, G. (2013) Dielectric properties of water under extreme conditions and transport of carbonates in the deep earth. Proceedings of National Academy of Sciences, 110, 6646–6650.10.1073/pnas.1221581110Search in Google Scholar

Philippot, P., and Selverstone, J. (1991) Trace-element-rich brines in eclogitic veins: Implications for fluid composition and transport during subduction. Contributions to Mineralogy and Petrology, 106, 417–430.10.1007/BF00321985Search in Google Scholar

Philippot, P., Chevallier, P., Chopin, C., and Dubessy, J. (1995) Fluid composition and evolution in coesite-bearing rocks (Dora-Maira massif, Western Alps): Implications for element recycling during subduction. Contributions to Mineralogy and Petrology, 121, 29–44.10.1007/s004100050088Search in Google Scholar

Plummer, L.N., and Busenberg, E. (1982) The solubilities of calcite, aragonite and vaterite in CO2–H2O solutions between 0 to 90 °C and an evaluation of the aqueous model for the system CaCO3–CO2–H2O. Geochimica et Cosmochimica Acta, 46, 1011–1040.10.1016/0016-7037(82)90056-4Search in Google Scholar

Pokrovsky, O.S., and Schott, J. (2001) Kinetics and mechanism of dolomite dissolution in neutral to alkaline solutions revisited. American Journal of Science, 301, 597–626.10.2475/ajs.301.7.597Search in Google Scholar

Poli, S. (2014) Dolomite discloses a hidden history of subducting slabs. American Mineralogist, 99, 879–880.10.2138/am.2014.4909Search in Google Scholar

——— (2015) Carbon mobilized at shallow depths in subduction zones by carbonatitic liquids. Nature Geoscience, 8, 633–636.10.1038/ngeo2464Search in Google Scholar

Poli, S., Franzolin, E., Fumagalli, P., and Crottini, A. (2009) The transport of carbon and hydrogen in subducted oceanic crust: An experimental study to 5 GPa. Earth and Planetary Science Letters, 278, 350–360.10.1016/j.epsl.2008.12.022Search in Google Scholar

Proyer, A., Mposkos, E., Baziotis, I., and Hoinkes, G. (2008) Tracing high-pressure metamorphism in marbles: Phase relations in high-grade aluminous calcite–dolomite marbles from the Greek Rhodope massif in the system CaO–MgO–Al2O3–SiO2–CO2 and indications of prior aragonite. Lithos, 104, 119–130.10.1016/j.lithos.2007.12.002Search in Google Scholar

Proyer, A., Rolfo, F., Zhu, Y.F., Castelli, D., and Compagnoni, R. (2013) Ultrahighpressure metamorphism in the magnesite + aragonite stability field: Evidence from two impure marbles fromthe Dabie–Sulu UHPM belt. Journal of Metamorphic Geology, 31, 35–48.10.1111/jmg.12005Search in Google Scholar

Putnis, A., and John, T. (2010) Replacement processes in the Earth’s crust. Elements, 6, 159–164.10.2113/gselements.6.3.159Search in Google Scholar

Reinecke, T., Bernhardt, H.-J., and Wirth, R. (2000) Compositional zoning of calcite in a high-pressure metamorphic calc-schist: Clues to heterogeneous grain-scale fluid distribution during exhumation. Contributions to Mineralogy and Petrology, 139, 584–606.10.1007/s004100000158Search in Google Scholar

Rice, J.M., and Ferry, J.M. (1982) Buffering, infiltration, and control of intensive variables during metamorphism. Reviews in Mineralogy, 10, 263–326.10.1515/9781501508172-011Search in Google Scholar

Roedder, E. (1984) Fluid inclusions. Reviews in Mineralogy, 12, 678.10.1515/9781501508271Search in Google Scholar

Rubatto, D., and Hermann, J. (2001) Exhumation as fast as subduction? Geology, 29, 3–6.10.1130/0091-7613(2001)029<0003:EAFAS>2.0.CO;2Search in Google Scholar

Sanchez-Valle, C. (2013) Structure and thermodynamics of subduction zone fluids from spectroscopic studies. Reviews in Mineralogy and Geochemistry, 76, 265–309.10.1515/9781501508295-008Search in Google Scholar

Sanchez-Valle, C., Mantegazzi, D., and Driesner, T. (2013) Thermodynamics of carbonbearing fluids and oxidised carbon speciation equilibria in subduction zone fluids. Goldschmidt 2013 Conference, Abstract 2125.Search in Google Scholar

Sato, K., and Katsura, T. (2001) Experimental investigation on dolomite dissociation into aragonite + magnesite up to 8.5 GPa. Earth and Planetary Science Letters, 184, 529–534.10.1016/S0012-821X(00)00346-0Search in Google Scholar

Schertl, H.P., Neuser, R.D., Sobolev, N.V., and Shatsky, V.S. (2004) UHP-metamorphic rocks from Dora Maira/Western Alps and Kokchetav/Kazakhstan: New insights using cathodoluminescence petrography. European Journal of Mineralogy, 16, 49–57.10.1127/0935-1221/2004/0016-0049Search in Google Scholar

Schmatz, J., and Urai, J.L. (2010) The interaction of fluid inclusions and migrating grain boundaries in a rock analogue: Deformation and annealing of polycrystalline camphor–ethanol mixtures. Journal of Metamorphic Geology, 28, 1–18.10.1111/j.1525-1314.2009.00849.xSearch in Google Scholar

Schmidt, M.W., and Poli, S. (2014) Devolatilisation during subduction. Treatise on Geochemistry, 4, 669–701.10.1016/B978-0-08-095975-7.00321-1Search in Google Scholar

Selverstone, J., Franz, G., Thomas, S., and Getty, S. (1992) Fluid variability in 2 GPa eclogites as indicator of fluid behaviour during subduction. Contributions to Mineralogy and Petrology, 112, 341–357.10.1007/BF00310465Search in Google Scholar

Shore, M., and Fowler, A.D. (1996) Oscillatory zoning in minerals: a common phenomenon. Canadian Mineralogist, 34, 1111–1126.Search in Google Scholar

Smit, M.A., Bröcker, M., 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, 26, 959–979.10.1111/j.1525-1314.2008.00795.xSearch in Google Scholar

Svensen, H., Jamtveit, B., Yardley, B.W.D., Engvik, A.K., Austrheim, H., and Broman, C. (1999) Lead and bromine enrichement in eclogite-facies fluids: Extreme fractionation during lower-crustal hydration. Geology, 27, 467–470.10.1130/0091-7613(1999)027<0467:LABEIE>2.3.CO;2Search in Google Scholar

Trommsdorff, V. (1972) Change in T-X during metamorphism of siliceous rocks of the Central Alps. Schweizerische Mineralogische und Petrographische Mitteilungen, 52, 567–571.Search in Google Scholar

Tumiati, S., Fumagalli, P., Tiraboschi, C., and Poli, S. (2013) An experimental study on COH-bearing peridotite up to 3.2 GPa and implications for crust-mantle recycling. Journal of Petrology, 54, 453–479.10.1093/petrology/egs074Search in Google Scholar

Vaggelli, G., Borghi, A., Cossio, R., Fedi, M., Giuntini, L., Lombardo, B., Marino, A., Massi, M., Olmi, F., and Petrelli, M. (2006) Micro-PIXE analysis of monazite from the Dora Maira Massif, Western Italian Alps. Microchimica Acta, 155, 305–311.10.1007/s00604-006-0561-6Search in Google Scholar

Wang, X.M., and Liou, J.G. (1993) Ultra-high-pressure metamorphism of carbonate rocks in the Dabie Mountains, central China. Journal of Metamorphic Geology, 11, 575–588.10.1111/j.1525-1314.1993.tb00173.xSearch in Google Scholar

Whitney, D.L., and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187.10.2138/am.2010.3371Search in Google Scholar

Zhang, L., 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 UHPM metapelites from western Tianshan, China. Journal of Metamorphic Geology, 21, 523–529.10.1046/j.1525-1314.2003.00460.xSearch in Google Scholar

Zhu, Y.F., and Ogasawara, Y. (2002) Carbon recycled into deep Earth: Evidence from dolomite dissociation in subduction-zone rocks. Geology, 30, 947–950.10.1130/0091-7613(2002)030<0947:CRIDEE>2.0.CO;2Search in Google Scholar

Received: 2016-3-9
Accepted: 2016-7-25
Published Online: 2017-1-3
Published in Print: 2017-1-1

© 2017 by Walter de Gruyter Berlin/Boston