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Littérature scientifique sur le sujet « Eclogite melting »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Eclogite melting"

Schorn, Simon, Anna Rogowitz, and Christoph A. Hauzenberger. "Partial melting of amphibole–clinozoisite eclogite at the pressure maximum (eclogite type locality, Eastern Alps, Austria)." European Journal of Mineralogy 35, no. 5 (2023): 715–35. http://dx.doi.org/10.5194/ejm-35-715-2023.

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Abstract. Pristine amphibole–clinozoisite eclogite from within the eclogite type locality (Hohl, Koralpe) of the Eastern Alps in Austria preserves centimetre-thick, concordant, laterally continuous leucocratic segregations of coarse-grained (up to ∼ 1 cm grain diameter) euhedral amphibole–clinozoisite–quartz and disseminated garnet–omphacite–rutile. The segregations locally show selvedges dominated by coarse-grained amphibole at the interface with their host eclogite. Retrogression is limited to thin films of texturally late plagioclase ± amphibole and minor symplectites of diopside–plagioclas

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Gorbachev, N. S., A. V. Kostyuk, Yu B. Shapovalov, P. N. Gorbachev, A. N. Nekrasov, and D. M. Soultanov. "Critical phenomena and granatization of water-containing eclogite at P = 3,7-4,0 GPa, T = 1000-1300 °C." Доклады Академии наук 489, no. 4 (2019): 393–98. http://dx.doi.org/10.31857/s0869-56524894393-398.

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The phase relationships have been experimentally studied at eclogitization of basalts and the melting of H2O‑containing eclogite in the basalt-H2O system at P = 3,7-4,0 GPa, T = 1000-1300 C. It is established that the phase relationships depend on temperature. The formation of a supercritical fluid-melt occurs at T = 1000 C, P = 3,7 GPa, conversion eclogite-granatite occurs at T = 1000-1100 C, P = 3,9 GPa, partial melting of eclogite with the formation of Na-alkali silicate melt and clinopyroxenite restite at 1150 C and 1300 C. The supercritical fluid-melt has a high reactivity, resulting in t

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Kuznetsov, Maksim V., and Valery M. Savatenkov. "Melting modeling of mixed peridotitic and mafic lithologies at shallow depths of the continental metasomatized lithospheric mantle: Implementation for the Early Cretaceous volcanic rocks of Eastern Mongolia." Vestnik of Saint Petersburg University. Earth Sciences 68, no. 3 (2023): 596–617. http://dx.doi.org/10.21638/spbu07.2023.309.

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The Eastern Mongolia volcanic area formed in the Late Mesozoic–Early Cenozoic within Central Asian Orogenic Belt. The main volcanic events of the area occurred in the Early Cretaceous when alkaline basaltic lavas erupted and formed the so-called cover volcanic complex. Geochemical and isotope features of the cover volcanic complex allowed researchers to identify the following mantle rocks as their source: metasomatized peridotites, eclogites, and pyroxenites. Thermodynamic modeling in alphaMELTS program was performed to determine whether the simultaneous melting of these rocks with subsequent

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Dokukina, K. A., M. V. Mints, and A. N. Konilov. "Melting of eclogite facies sedimentary rocks in the Belomorian Eclogite Province, Russia." Journal of Metamorphic Geology 35, no. 4 (2016): 435–51. http://dx.doi.org/10.1111/jmg.12239.

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Cao, Wentao, Jane A. Gilotti, and Hans-Joachim Massonne. "Partial melting of zoisite eclogite from the Sanddal area, North-East Greenland Caledonides." European Journal of Mineralogy 32, no. 4 (2020): 405–25. http://dx.doi.org/10.5194/ejm-32-405-2020.

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Abstract. Metamorphic textures and a pressure–temperature (P–T) path of zoisite eclogite are presented to better understand the metamorphic evolution of the North-East Greenland eclogite province and this particular type of eclogite. The eclogite contained the mineral assemblage garnet, omphacite, kyanite, phengite, quartz and rutile at peak pressure. Partial melting occurred via breakdown of hydrous phases, paragonite, phengite and zoisite, based on (1) polymineralic inclusions of albite and K-feldspar with cusps into host garnet, (2) small euhedral garnet with straight boundaries against pla

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ShuaiQi, LIU, and ZHANG GuiBin. "Isotope fractionation during partial melting of eclogite." Acta Petrologica Sinica 37, no. 1 (2021): 95–112. http://dx.doi.org/10.18654/1000-0569/2021.01.07.

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Chu, Xu, Jay J. Ague, Yury Y. Podladchikov, and Meng Tian. "Ultrafast eclogite formation via melting-induced overpressure." Earth and Planetary Science Letters 479 (December 2017): 1–17. http://dx.doi.org/10.1016/j.epsl.2017.09.007.

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Tang, Pan, and Shun Guo. "Corundum-bearing and spinel-bearing symplectites in ultrahigh-pressure eclogites record high-temperature overprint and partial melting during slab exhumation." European Journal of Mineralogy 35, no. 4 (2023): 569–88. http://dx.doi.org/10.5194/ejm-35-569-2023.

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Abstract. Corundum- and spinel-bearing symplectites after muscovite were found in ultrahigh-pressure (UHP) eclogites from the Dabie terrane, China. Three types of symplectites were recognized based on their mineral assemblages: (1) symplectitic intergrowths of corundum + plagioclase + biotite after phengite (CPB), (2) symplectitic intergrowths of spinel + plagioclase + biotite after phengite (SPB), and (3) symplectitic intergrowths of spinel + plagioclase after paragonite (SP). The microtextures and mineral assemblages of the symplectites, in combination with the results of thermodynamic model

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Spetsius, Zdzislaw, Ludmila Liskovaya, Alexander Ivanov, and Irina Bogush. "FEATURES OF GARNET AND CLINOPYROXENE IN DIAMONDIFEROUS ECLOGITES FROM THE UDACHNAYA KIMBERLITE PIPE, YAKUTIA: METASOMATOSIS EVIDENCE." Ores and metals, no. 4 (February 2, 2021): 45–53. http://dx.doi.org/10.47765/0869-5997-2020-10027.

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Mineralogy of diamondiferous eclogite xenolites showing metasomatosis evidence from the Udachnaya kimberlite pipe is discussed. The paper also reviews features of diamonds they contain, compositions of primary garnets and omphacites as well as alteration of structural and species compositions of original garnets and clinopyroxenes during metasomatosis. Based on pyrope structure update, two-phase garnet composition is suggested, which is mostly represented by complex pyrope associated with Ca-pyrope. In all samples, primary omphacite is replaced by another clinopyroxene variety depleted in Na2O

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Litvin, Yu A., A. V. Kuzyura, and E. B. Limanov. "The role of garnetization of olivine in olivine-diopside-jadeite system in the ultramafic-mafic evolution of the upper-mantle magmatism (experiment at 6 GPa)." Геохимия 64, no. 10 (2019): 1026–46. http://dx.doi.org/10.31857/s0016-752564101026-1046.

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Peritectic mechanisms, controlling fractional ultrabasic-basic evolution of the upper mantle magmatism and genesis of the peridotitepyroxeniteeclogite rock series, are substantiated in theory and experiment. Melting phase relations of a differentiated mantle material are studied with polythhermal section method in the multicomponent olivineclinopyroxene/omphacitecorundumcoesite system with boundary compositions duplicated these of peridotitic and eclogitic minerals. The peritectic reaction of orthopyroxene and melt with formation of clinopyroxene (the opthopyroxene clinopyroxenization reaction

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Thèses sur le sujet "Eclogite melting"

Laurie, Angelique. "The formation of Earth’s early felsic continental crust by water-present eclogite melting." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80214.

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Thesis (PhD)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: The sodic and leucocratic Tonalite, Trondhjemite and Granodiorite (TTG) granitoid series of rocks characterise Paleo- to Meso- Archaean felsic continental crust, yet are uncommon in the post-Archaean rock record. Consequently, petrogenetic studies on these rocks provide valuable insight into the creation and evolution of Earth’s early continental crust. The highpressure (HP)-type of Archaean TTG magmas are particularly important in this regard as their geochemistry requires that they are formed by high-pressure melting of a

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Cao, Wentao. "Metamorphic pressure-temperature paths of eclogites from The North-East Greenland Caledonides." Diss., University of Iowa, 2016. https://ir.uiowa.edu/etd/2189.

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Exhumation of high-pressure and ultrahigh-pressure eclogites in large orogens and associated petrological change during the process remain enigmatic problems. This dissertation examines eclogites from high-pressure (HP) and ultrahigh-pressure (UHP) terranes in the North-East Greenland Eclogite Province, aiming to decipher their metamorphic pressure-temperature (P-T) paths, evaluate spatial variation of P-T paths, and understand petrological changes during the exhumation. Kyanite-bearing UHP eclogites from North-East Greenland contain a peak mineral assemblage of phengite, garnet, omphacite, ky

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PELLEGRINO, LUCA. "Modelling of mechanical mixing and chemical interaction between the subducting crust and the overlying mantle at (ultra)high pressures: implications for the slab-to-mantle mass transfer." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2020. http://hdl.handle.net/10281/271024.

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L’obiettivo di questo studio è quello di caratterizzare il trasferimento di massa tra crosta e mantello. A questo scopo sono stati considerati due terreni metamorfici di alta pressione (HP) dove peridotiti a granato affiorano all’interno di rocce crostali di alto grado, i.e. l’area del Monte Duria (falda Adula-Cima Lunga, Alpi centrali, N Italia) e la zona d’ Ultimo (falda del Tonale, Alpi orientali, N Italia). Nell’area del Monte Duria, peridotiti a granato affiorano in contatto diretto con eclogiti migmatitiche (Borgo). Sia le peridotiti che le eclogiti registrano condizioni di picco in HP a

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Chapitres de livres sur le sujet "Eclogite melting"

Sigurdsson, Haraidur. "The Source of Magmas." In Melting the Earth. Oxford University PressNew York, NY, 1999. http://dx.doi.org/10.1093/oso/9780195106657.003.0016.

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Abstract Once it had been established that magmas were generated by the melting of solid rock within the Earth, the nature and chemical composition of the source rock became the focus of much research. Throughout the first half of the twentieth century, two principal hypotheses were debated on the nature of the source. Because the principal type of magma erupted was basalt, it appeared logical to some that the source region was basaltic in composition, possibly the high-pressure form of basalt known as eclogite. The basaltic magma would then be derived by wholesale melting of the source.

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Helmstaedt, H. "Tectonic and Structural Controls on Diamondiferous Kimberlite and Lamproite and Their Bearing on Area Selection for Diamond Exploration." In Geoscience and Exploration of the Argyle, Bunder, Diavik, and Murowa Diamond Deposits. Society of Economic Geologists, 2018. http://dx.doi.org/10.5382/sp.20.01.

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Abstract Tectonic histories and structural settings of the Diavik, Murowa, Argyle, and Bunder deposits—two kimberlitic- and two lamproitic-hosted diamond resources, respectively—are described to bring attention to similarities and differences that may help to better understand their tectonic and structural controls, and to derive some general principles about the evolution of primary diamond deposits that may be applicable to diamond exploration. As the evolution of all four deposits was multistage and took place over billions of years, possible tectonic and structural controls were assessed f

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Actes de conférences sur le sujet "Eclogite melting"

Zhang, Guibin, and Shuaiqi Liu. "Eclogite melting and the destruction of early high-pressure rock records." In Goldschmidt2023. European Association of Geochemistry, 2023. http://dx.doi.org/10.7185/gold2023.18113.

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Holycross, Megan, and Elizabeth Cottrell. "Vanadium partitioning during eclogite melting and arc cumulate fractionation in subduction zones." In Goldschmidt2022. European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.11441.

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Cao, Wentao, Hans-Joachim Massonne, and Hans-Joachim Massonne. "PARTIAL MELTING OF ECLOGITE DUE TO PROGRADE BREAKDOWN OF AMPHIBOLE: AN EXAMPLE FROM THE ALGONQUIN TERRANE, WESTERN GRENVILLE PROVINCE, CANADA." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-339454.

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Wang, Lu, Michael Brown, and Tim E. Johnson. "PARTIAL MELTING OF UHP ECLOGITES DURING EXHUMATION, SULU BELT, CHINA—FLUID–MELT EVOLUTION, DEFORMATION AND IMPLICATIONS FOR EXHUMATION DYNAMICS." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-381676.

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