Reintegrating nanogranitoid inclusion composition to reconstruct the prograde history of melt-depleted rocks
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摘要
A recent fascinating development in the study of high-grade metamorphic basements is represented by the finding of tiny inclusions of crystallized melt(nanogranitoid inclusions) hosted in peritectic phases of migmatites and granulites. These inclusions have the potential to provide the primary composition of crustal melts at the source. A novel use of the recently-published nanogranitoid compositional database is presented here. Using granulites from the world-renowned Ivrea Zone(NW Italy) on which the original melt-reintegration approach has been previously applied, it is shown that reintegrating melt inclusion compositions from the published database into residual rock compositions can be a further useful method to reconstruct a plausible prograde history of melt-depleted rocks. This reconstruction is fundamental to investigate the tectonothermal history of geological terranes.
A recent fascinating development in the study of high-grade metamorphic basements is represented by the finding of tiny inclusions of crystallized melt(nanogranitoid inclusions) hosted in peritectic phases of migmatites and granulites. These inclusions have the potential to provide the primary composition of crustal melts at the source. A novel use of the recently-published nanogranitoid compositional database is presented here. Using granulites from the world-renowned Ivrea Zone(NW Italy) on which the original melt-reintegration approach has been previously applied, it is shown that reintegrating melt inclusion compositions from the published database into residual rock compositions can be a further useful method to reconstruct a plausible prograde history of melt-depleted rocks. This reconstruction is fundamental to investigate the tectonothermal history of geological terranes.
A recent fascinating development in the study of high-grade metamorphic basements is represented by the finding of tiny inclusions of crystallized melt(nanogranitoid inclusions) hosted in peritectic phases of migmatites and granulites. These inclusions have the potential to provide the primary composition of crustal melts at the source. A novel use of the recently-published nanogranitoid compositional database is presented here. Using granulites from the world-renowned Ivrea Zone(NW Italy) on which the original melt-reintegration approach has been previously applied, it is shown that reintegrating melt inclusion compositions from the published database into residual rock compositions can be a further useful method to reconstruct a plausible prograde history of melt-depleted rocks. This reconstruction is fundamental to investigate the tectonothermal history of geological terranes.
引文
Acosta-Vigil, A.,Buick, I.,Hermann, J.,Cesare, B.,Rubatto, D.,London, D.,Morgan VI, G.B., 2010. Mechanisms of crustal anatexis:a geochemical study of partially melted metapelitic enclaves and host dacite, SE Spain. Journal of Petrology 51,785-821.
Acosta-Vigil, A., Barich, A., Bartoli, O., Garrido, C., Cesare, B., Remusat, L., Poli, S.,Raepsaet, C., 2016. The composition of nanogranitoids in migmatites overlying the Ronda peridotites(Betic Cordillera, S Spain):the anatectic history of a polymetamorphic basement. Contributions to Mineralogy and Petrology 171,24.
Anderson, J.R., Kelsey, D.E., Hand, M., Collins, W.J., 2013. Conductively driven, highthermal gradient metamorphism in the Anmatjira Range, Arunta region, central Australia. Journal of Metamorphic Geology 31,1003-1026.
Angiboust, S., Langdon, R., Agard, P., Waters, D., Chopin, C., 2012. Eclogitization of the Monviso ophiolite(W. Alps)and implications on subduction dynamics.Journal of Metamorphic Geology 30, 37-61.
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Barich, A., Acosta-Vigil, A., Garrido, C.J., Cesare, B., Tajcmanova, L., Bartoli, O., 2014.Microstructures and petrology of melt inclusions in the anatectic sequence of Jubrique(Betic Cordillera, S Spain):implications for crustal anatexis. Lithos206-207, 303-320.
Bartoli, O., 2017. Phase equilibria modelling of residual migmatites and granulites:an evaluation of the melt-reintegration approach. Journal of Metamorphic Geology 35, 919-942.
Bartoli, O., Cesare, B., Poli, S., Bodnar, R.J., Acosta-Vigil, A., Frezzotti, M.L., Meli, S.,2013a. Recovering the composition of melt and the fluid regime at the onset of crustal anatexis and S-type granite formation. Geology 41,115-118.
Bartoli, O., Cesare, B., Poli, S., Acosta-Vigil, A., Esposito, R., Turina, A., Bodnar, R.J.,Angel, R.J., Hunter, J., 2013b. Nanogranite inclusions in migmatitic garnet:behavior during piston cylinder re-melting experiments. Geofluids 13, 405-420.
Bartoli, O., Tajcmanova, L., Cesare, B., Acosta-Vigil, A., 2013c. Phase equilibria constraints on melting of stromatic migmatites from Ronda(S. Spain):insights on the formation of peritectic garnet. Journal of Metamorphic Geology 31,775-789.
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Carvalho, B.B., Sawyer, E.W.,Janasi, V.A., 2017. Enhancing maficity of granitic magma during anatexis:entrainment of infertile mafic lithologies. Journal of Petrology58,1333-1362.
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Anderson, J.R., Kelsey, D.E., Hand, M., Collins, W.J., 2013. Conductively driven, highthermal gradient metamorphism in the Anmatjira Range, Arunta region, central Australia. Journal of Metamorphic Geology 31,1003-1026.
Angiboust, S., Langdon, R., Agard, P., Waters, D., Chopin, C., 2012. Eclogitization of the Monviso ophiolite(W. Alps)and implications on subduction dynamics.Journal of Metamorphic Geology 30, 37-61.
Barboza, S.A., Bergantz, G.W., 2000. Metamorphism and anatexis in the Mafic Complex contact aureole, Ivrea Zone, northern Italy. Journal of Petrology 41,1307-1327.
Barich, A., Acosta-Vigil, A., Garrido, C.J., Cesare, B., Tajcmanova, L., Bartoli, O., 2014.Microstructures and petrology of melt inclusions in the anatectic sequence of Jubrique(Betic Cordillera, S Spain):implications for crustal anatexis. Lithos206-207, 303-320.
Bartoli, O., 2017. Phase equilibria modelling of residual migmatites and granulites:an evaluation of the melt-reintegration approach. Journal of Metamorphic Geology 35, 919-942.
Bartoli, O., Cesare, B., Poli, S., Bodnar, R.J., Acosta-Vigil, A., Frezzotti, M.L., Meli, S.,2013a. Recovering the composition of melt and the fluid regime at the onset of crustal anatexis and S-type granite formation. Geology 41,115-118.
Bartoli, O., Cesare, B., Poli, S., Acosta-Vigil, A., Esposito, R., Turina, A., Bodnar, R.J.,Angel, R.J., Hunter, J., 2013b. Nanogranite inclusions in migmatitic garnet:behavior during piston cylinder re-melting experiments. Geofluids 13, 405-420.
Bartoli, O., Tajcmanova, L., Cesare, B., Acosta-Vigil, A., 2013c. Phase equilibria constraints on melting of stromatic migmatites from Ronda(S. Spain):insights on the formation of peritectic garnet. Journal of Metamorphic Geology 31,775-789.
Bartoli, O., Cesare, B., Remusat, L., Acosta-Vigil, A., Poli, S., 2014. The H2O content of granite embryos. Earth and Planetary Science Letters 395, 281-290.
Bartoli, O., Acosta-Vigil, A., Ferrero, S., Cesare, B., 2016a. Granitoid magmas preserved as melt inclusions in high-grade metamorphic rocks. American Mineralogist 101,1543-1559.
Bartoli, O., Acosta-Vigil, A., Tajcmanova, L., Cesare, B., Bodnar, R.J., 2016b. Using nanogranitoids and phase equilibria modeling to unravel anatexis in the crustal footwall of the Ronda peridotites(Betic Cordillera, S Spain). Lithos 256-257,282-299.
Bea, F., Montero, P., 1999. Behavior of accessory phases and redistribution of Zr, REE,Y, Th, and U during metamorphism and partial melting of metapelites in the lower crust:an example from the Kinzigite formation of Ivrea-Verbano, NW Italy. Geochimica et Cosmochimica Acta 63,1133-1153.
Brown, M., 2006. Duality of thermal regimes is the distinctive characteristic of plate tectonics since the Neoarchean. Geology 34(11), 961-964.
Brown, M., 2007. Crustal melting and melt extraction, ascent and emplacement in orogens:mechanisms and consequences. Journal of Geological Society, London164, 709-730.
Brown, C.R., Yakymchuk, C., Brown, M., Fanning, C.M., Korhonen, F.J., Piccoli, P.M.,Siddoway, C.S., 2016. From source to sink:petrogenesis of Cretaceous anatectic granites from the Fosdick migmatite-granite complex, West Antarctica. Journal of Petrology 57,1241-1278.
Brown, M., Rushmer, T., 2006. Evolution and Differentiation of the Continental Crust. Cambridge University Press, pp. 296-331.
Caddick, M.J., Konopasek, J., Thompson, A.B., 2010. Preservation of garnet growth zoning and the duration of prograde metamorphism. Journal of Petrology 51,2327-2347.
Carosi, R., Montomoli, C., Langone, A., Turina, A., Cesare, B., Iaccarino, S., Fascioli, L.,Visona, D., Ronchi, A., Rai, S.M., 2015. Eocene partial melting recorded in peritectic garnets from kyanite-gneiss, Greater Himalayan Sequence, central Nepal.In:Mukherjee, S., Carosi, R., van der Beek, P.A., Mukherjee, B.K., Robinson, D.M.(Eds.), Tectonics of the Himalaya, vol. 412. Geological Society, London, Special Publications, pp. 111-129.
Carvalho, B.B., Sawyer, E.W., Janasi, V.A., 2016. Crustal reworking in a shear zone:transformation of metagranite to migmatite. Journal of Metamophic Geology34, 237-264.
Carvalho, B.B., Sawyer, E.W.,Janasi, V.A., 2017. Enhancing maficity of granitic magma during anatexis:entrainment of infertile mafic lithologies. Journal of Petrology58,1333-1362.
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