 | | Journal (article/letter/editorial) | | rich in hydrous phases, formed along margins of eclogite lenses and along mesoscopic fracture systems....are from 1–50 cm thick, with adjacent wall-rock eclogite replaced by symplectites. At a low degree of reaction...Tibetan plateau is caused by transformation of eclogite to granulite in the crustal root zone. Such models...models assume that complete transformation to eclogite and back-reaction to granulite and amphibolite...Metamorphic Geology, Volume 17, Number 6, 1999 eclogite would not occur on a geological time scale unless |  | Masago, H., Rumble, D., Ernst, W. G., Parkinson, C. D., Maruyama, S. (2003) Low delta18O eclogites from the Kokchetav massif, northern Kazakhstan. Journal of Metamorphic Geology, 21 (6) 579-587 doi:10.1046/j.1525-1314.2003.00465.x | Journal (article/letter/editorial) | | isotopic compositions are heterogeneous in samples of eclogite, even on an outcrop scale. Schists have rather...during subduction and UHP metamorphism. Key words: eclogite; Kokchetav massif; low d18O; whiteschist. INTRODUCTION...and III), quartz-eclogite (Unit III) and coesiteeclogite facies to diamond-eclogite facies (Unit II)...representative, relatively unretrograded eclogite, amphibolitized eclogite, whiteschist ⁄ metapelite and quartz...block-in-matrix relationships involving abundant lensoidal eclogite bodies enclosed in the enveloping metapelite. |  | Miller, Christine, Mundil, Roland, Thöni, Martin, Konzett, Jürgen (2005) Refining the timing of eclogite metamorphism: a geochemical, petrological, Sm-Nd and U-Pb case study from the Pohorje Mountains, Slovenia (Eastern Alps) Contributions to Mineralogy and Petrology, 150 (1) 70-84 doi:10.1007/s00410-005-0004-0 | Journal (article/letter/editorial) | | Thöni Jürgen Konzett Refining the timing of eclogite metamorphism: a geochemical, petrological, Sm-Nd...within the stability field of quartz. Metapelitic eclogite country rocks contain the assemblage garnet +...are in good agreement with results obtained from eclogite samples. The eclogites contain a single population...of 90.7±3.9 and 90.1±2.0 Ma (Nd: +8) for two eclogite samples. The agreement between U-Pb and Sm-Nd...University of Innsbruck, Innrain 52, A-6020 Innsbruck, Austria E-mail: Christine.Miller@uibk.ac.at R. Mundil Berkeley |  | | Journal (article/letter/editorial) | | University of Innsbruck, Innrain 52, A-6020 Innsbruck, Austria b CNR-Istituto di Geoscienze e Georisorse, Unità...University of Vienna, Althanstrasse 14, A-1090 Wien, Austria Received 20 April 2006; received in revised form...not changed significantly during the gabbro to eclogite transformation because trace elements are redistributed...Sc), rutile (Ti, Nb, Ta) and zircon (Zr, Hf ) at eclogite-facies conditions. Omphacite hosts most of the... All rights reserved. Keywords: Eastern Alps; Eclogite; Trace elements; Subduction; Rutile thermometry |  | | Journal (article/letter/editorial) | | und Petrographie, Innrain 52, A-6020 Innsbruck, Austria Received 30 July 2003; accepted 17 May 2004 Available...Elsevier B.V. All rights reserved. Keywords: Kyanite eclogite; Geochemistry; P – T conditions; Pohorje; Slovenia...and Thöni, 1995; Magetti et al., 1987) to the eclogite type locality Kor- and Saualpe in the East (Haüy...or even late Proterozoic (Manby et al., 1988) eclogite-facies event. The eclogites from the Pohorje Mountains...the southern extension of the Koralpe – Saualpe eclogite zone. The Pohorje eclogites were first described |  | Zhang, Yong, Pan, Tong, Zhang, Aikui, He, Shuyue, Qian, Ye, Bai, Yongshan (2023) Spatial Relationship between Eclogite and Copper-Nickel Mineralization in East Kunlun, China. Minerals, 13 (3) 330 doi:10.3390/min13030330 | Journal (article/letter/editorial) | | minerals Article Spatial Relationship between Eclogite and Copper-Nickel Mineralization in East Kunlun...Qian, Y.; Bai, Y. Spatial Relationship between Eclogite and Copper-Nickel Mineralization in East Kunlun...between the Cu-Ni deposits and eclogite distribution. In this study, eclogite samples from the Xiarihamu...electron probe microanalysis (EPMA). Further, eclogite protolith properties, the formation environment...mechanism were also investigated. Geochemically, eclogite is rich in MgO and FeO and low in alkali and SiO2 |  | | Journal (article/letter/editorial) | | indicate that distinct mantle sources existed for the eclogite protoliths 1.3 Ma ago, and that enrichment in...basic-ultrabasic complex; Champtoceaux Complex (Lower Loire valley); Horst des Essarts (in the VendBe)]. [I = 2 =...complex; (2) the Champtoceaux Complex (Lower Loire valley); (3) the Horst des Essarts (in the Vendbe). These...structural development. The sporadic occurrence of eclogite outcrops throughout these complexes is a notable feature...f 11 Ma; Paquette et al., 1984). Moreover, one eclogite (La Richaudais) has been recently dated, yielding |  | | Report (chapter) | | garnet omphacite-rutile-quartz in glaucophane eclogite and garnet-omphacite-zoisiterutile _+kyanite _+phengite..._+phengite _+ankerite in barroisite eclogite. Most samples contain a significant amount of amphibole...barroisite in most samples, but in relatively Fe-rich eclogite it is glaucophane with significant Na in the A...evolution of the eclogite-bearing units of the Neelum valley just to the east of the Kaghan valley indicate that...that the eclogite occurrences of the Kaghan-Neelum area define an eclogite-bearing terrane of regional |  | | Journal (article/letter/editorial) | | MEETING REPORT 12th INTERNATIONAL ECLOGITE CONFERENCE the understanding of this complex orogeny. “The...polycrystalline inclusions. “The Chronology of Eclogite Facies Metamorphic Rocks” included talks on the...1811-5209/18/0066-$0.00 DOI: 10.2138/gselements.14.1.66 Eclogite-facies rocks are a record of subduction and collision...scientists from all over the world at the International Eclogite Conference (IEC). The 12th edition of the IEC...during a vigorous hike and were rewarded by eclogite outcrops and beautiful views of the surrounding landscape |  | Carswell, D. A, Krabbendam, M., Cuthbert, S. J., Eide, E. A, Brueckner, H. K., Medaris Jr, L. G (2003) Guidebook to the Field Excursions in the Nordfjord-Stadlandet-Almklovdalen Area. Norges Geologiske Undersøkelse. Rapport 2003.056. Norges Geologiske Undersøkelse (NGU) | Report (issue) | | conducted during the Alice Wain Memorial West Norway Eclogite Field Symposium held in Selje from June 21st-28th...high- and ultrahigh-pressure rocks. Keywords: Eclogite Gabbro Ultrahigh-pressure Peridotite Western...Microdiamond ALICE WAIN MEMORIAL WEST NORWAY ECLOGITE FIELD SYMPOSIUM JUNE 21st – 28th, 2003 in SELJE...spectroscopy, of an occurrence of coesite within an eclogite in the WGR. This coesite is preserved (armoured...Figure 1-1) within a small, partly retrograded, eclogite pod at Grytting, near Selje, in the SW part of |  | | Journal (article/letter/editorial) | | S0016-7037(00)00801-8 Oxygen isotope equilibrium between eclogite minerals and its constraints on mineral Sm-Nd...systems of eclogite minerals. The omphacite– garnet pairs of oxygen isotope equilibrium at eclogite-facies...pairs. The presence or absence of fluid in the eclogite protoliths is a major rate-controlling factor...equilibrium conditions. 2. GEOLOGICAL SETTINGS The eclogite samples used in this study were collected from...gneisses, and schist, metagranite associated with the eclogite blocks (Wang et al., 1995). These observations |  | Carswell, D. A., Brueckner, H. K., Cuthbert, S. J., Mehta, K., O'Brien, P. J. (2003) The timing of stabilisation and the exhumation rate for ultra-high pressure rocks in the Western Gneiss Region of Norway. Journal of Metamorphic Geology, 21 (6) 601-612 doi:10.1046/j.1525-1314.2003.00467.x | Journal (article/letter/editorial) | | firstly amphibolite facies then quartz-stable, eclogite facies conditions. Currently, the best constrained...retain coesite inclusions) from the Hareidland eclogite. Exhumation must have followed shortly thereafter...Hornelen Ultramafic bodies: GU - garnetiferous Eclogite with prograde zoned garnets and no evidence for...for coesite. G = glaucophane Florø Eclogite with coesite or polycrystalline quartz, mostly with unzoned...because up until then it was widely assumed that eclogite facies metamorphism in the WGR was a Precambrian |  | ŠTÍPSKÁ, P., CHOPIN, F., SKRZYPEK, E., SCHULMANN, K., PITRA, P., LEXA, O., MARTELAT, J. E., BOLLINGER, C., ŽÁČKOVÁ, E. (2012) The juxtaposition of eclogite and mid-crustal rocks in the Orlica-Śnieżnik Dome, Bohemian Massif. Journal of Metamorphic Geology, 30 (2) 213-234 doi:10.1111/j.1525-1314.2011.00964.x | Journal (article/letter/editorial) | | 1111/j.1525-1314.2011.00964.x The juxtaposition of eclogite and mid-crustal rocks in the _ Orlica–Śnieznik...F-59655 Villeneuve d ÕAscq, France ABSTRACT Eclogite, felsic orthogneiss and garnet–staurolite metapelite...cleavage, S3, occur locally. The S1 fabric in the eclogite is defined by alternation of garnet-rich (grs =...folding are associated with retrogression of the eclogite under amphibolite facies conditions, and with...with their juxtaposition. The shared part of the eclogite and metapelite P–T paths during the development |  | | Journal (article/letter/editorial) | | Schulte · P. Blümel Metamorphic evolution of eclogite and associated garnet-mica schist in the high-pressure...metabasic garnet–omphacite schists and enclose eclogite boudins in the high-pressure metamorphic Maksyutov...for the eclogite boudin, an intermediate temperature (630°C, >1.7 GPa) for the foliated eclogite and the...the South Urals (49°N–56°N). The greenschist- to eclogite facies metamorphic Maksyutov Complex trends 180...(1977), for example, describes eight different eclogite varieties (Na-rich, Ti-rich, etc.) and Werner |  | | Journal (article/letter/editorial) | | Petrology and Mineralogy of Eclogite and Garnet Amphibolite from Puerto Cabello, Venezuela by BENJAMIN...of garnet-clinopyroxene (eclogite), garnet-clinopyroxeneamphibole (eclogite-amphibolite) and garnet-amphibole...the epidote-amphibolite facies. Occurrences of eclogite rocks usually are found to be xenoliths in kimberlite...blocks in migmatites and schists. The presence of eclogite metamorphosed in situ with rocks of obvious sedimentary...September 5, 2015 ABSTRACT Occurrences of eclogite, eclogite-amphibolite, and garnet amphibolite from |  | Zheng, Yong-Fei, Fu, Bin, Xiao, Yilin, Li, Yiliang, Gong, Bing (1999) Hydrogen and oxygen isotope evidence for fluid–rock interactions in the stages of pre- and post-UHP metamorphism in the Dabie Mountains. Lithos, 46 (4) 677-693 doi:10.1016/s0024-4937(98)00090-5 | Journal (article/letter/editorial) | | fractionations between omphacite and garnet in some eclogite samples. The d18 O values of y4 to y1‰ for some...metamorphism. Heterogeneous d18 O values for the eclogite protoliths implies not only the varying degrees...Keywords: Stable isotope; Fluid–rock interaction; Eclogite; Metamorphism; Plate subduction; The Dabie Mountains...(1999) 677–693 Previous studies determined that eclogite and associated quartz–schist from Donghai in the...exchange has been presumed to occur between the eclogite protoliths and a fluid of meteoric origin before |  | | Journal (article/letter/editorial) | | d laurosio(l/Europeon units Alpide blueschist-eclogite facies rocks Apulian units Alpide me tamorphosed...Rcgions shown in black indicate blueschist/eclogite outcrops irrespective of the degree of the later, lower...platform. In the Eastern Alps the Penninic zone outcrops in three large tectonic windows-Tauern, Engadine...Pognante & Kienast 1987). In this 500-km-long belt of eclogite facies metamorphism there are Pen ninic tectonic...volcanic rocks do not show any evidence for early eclogite facies metamorphism (Dal Piaz & Ernst 1978). The |  | Skublov, S. G., Balashov, Yu. A., Marin, Yu. B., Berezin, A. V., Mel’nik, A. E., Paderin, I. P. (2010) U-Pb age and geochemistry of zircons from Salma eclogites (Kuru-Vaara deposit, Belomorian Belt) Doklady Earth Sciences, 432 (2) 791-798 doi:10.1134/s1028334x10060188 | Journal (article/letter/editorial) | | 10.1134/S1028334X10060188 The possibility of eclogite formation in the Archean is currently considered...Archean eclogites (U–Pb age of zircons from the eclogite is 2721 ± 6 Ma) were originally discovered in...the Kola Peninsula. Later, numerous bodies of eclogitelike bodies as tectonic blocks of dif ferent...of eclogite metamorphism with ages of 2.82 and 2.72 Ma were distinguished for the Salma eclogite mainly...isotopes and zircon geochemistry from the same eclogite outcrops allowed the authors of [7] to reach a conclusion |  | | Journal (article/letter/editorial) | | that occur interstitially between phases of the eclogite facies assemblage: garnet + omphacite + zoisite...Pressure and temperature conditions for the main eclogite stage are estimated to be 2.3–2.8 GPa and 585–655...result, recognition of magnesite and aragonite in eclogite facies rocks has been used as an indicator for... The formation of aragonite is constrained to eclogite facies conditions, which implies that the studied...interpreting aragonite-magnesite associations in eclogite facies rocks as evidence for UHP metamorphic conditions |  | | Journal (article/letter/editorial) | | complex to create and preserve blueschist and eclogite, reflecting a cooling Earth. There may be a drastic...time shows three peaked periods of blueschist/eclogite formation, at 80 to 130 Ma, 400 to 500 Ma, and...transgression correspond to extensive blueschist/eclogite facies events and those of worldwide major regression...regression to less active periods of blueschist/eclogite formation. This relationship suggests that more...exhumation of blueschist/eclogite belts. The periodic pattern of blueschist/ eclogite formation is similar |  | | Journal (article/letter/editorial) | | exceeding the crustal levels. CE Blueschist- and eclogite-bearing HP-UHP complexes formed at low thermal...combined with the abundance of Late Neoproterozoic eclogite-bearing complexes all over the ACCEPTED MANUSCRIPT...(N-MORB or E-MORB) affinity for most of the studied eclogite- IP and blueschist-bearing associations may...northeastern Transbaikalia (Russia), which are the oldest eclogite-facies rocks in the CAOB (Avchenko et. al., 1989;...Neoproterozoic (~760 Ma) age of crystallization of the eclogite-hosting granitic gneisses and nearly coeval age |  | Li, Xiaoli, Zhang, Lifei, Wei, Chunjing, Slabunov, Alexander I. (2015) Metamorphic PT path and zircon U–Pb dating of Archean eclogite association in Gridino complex, Belomorian province, Russia. Precambrian Research, 268. 74-96 doi:10.1016/j.precamres.2015.07.009 | Journal (article/letter/editorial) | | Metamorphic PT path and zircon U-Pb dating of Archaean eclogite association in Gridino complex, Belomorian province...Metamorphic PT path and zircon U-Pb dating of Archaean eclogite association in Gridino complex, Belomorian province...Belomorian eclogite; 3 We confirm the clock-wise metamorphic PT path of Belomorian eclogite assemblages;...assemblages; 4 Neoarchean age of Belomorian eclogite has been determined; 5 Subsequent high-temperature...reworking during the exhumation of Belomorian eclogite 6 assemblages has been suggested at Neoarchean; |  | Liu, Fulai, Xu, Zhiqin, Katayama, Ikuo, Yang, Jingsui, Maruyama, Shigenori, Liou, J.G (2001) Mineral inclusions in zircons of para- and orthogneiss from pre-pilot drillhole CCSD-PP1, Chinese Continental Scientific Drilling Project. Lithos, 59 (4) 199-215 doi:10.1016/s0024-4937(01)00064-0 | Journal (article/letter/editorial) | | ultramafic rock with minor intercalated layers of eclogite and phengite-bearing kyanite quartzite. All analyzed...inclusions in zircons separated from paragneiss, eclogite and phengite-bearing kyanite quartzite samples...paragneisses, phengitebearing kyanite quartzite and eclogite experienced widespread UHP metamorphism in the...Some geologists argue for tectonic emplacement of eclogite bodies into low-P orthogneisses (Smith, 1988;...some gneissic rocks and marble contain abundant eclogite layers and blocks. Many meter –kilometersize ultramafic |  | | Journal (article/letter/editorial) | | garnets in ultrahigh-pressure (UHP) metamorphic eclogite from Dabie, east-central China. Compositional...slab exhumation. Keywords: Atoll garnet, fluid, eclogite, Dabie INTRODUCTION Chemical zoning of metamorphic...in both normal and atoll-shaped garnets in an eclogite from the Dabie ultrahigh-pressure (UHP) metamorphic... 1120 CHENG ET AL.: ORIGIN OF ATOLL GARNETS IN ECLOGITE pressure metamorphic belt in the world, and is...atoll-shaped garnets have been found in several eclogite outcrops from Huangzhen throughout the Dabie (Castelli |  | | Journal (article/letter/editorial) | | possible to define lherzolite, granulite, and eclogite massifs in the depth zone of the Tarim and Tien...OrtoSuu R. Fig. 1. Sketch map of basalt and eclogite outcrops along magnetotelluric profile lengthwise meridian...meridian 76° E [1] across Tien Shan. (1) Basalts, (2) eclogite, (3) large faults, (4, 5) stations (4) and profile...are presented in Fig. 3. Detailed description of eclogite samples collected on the northern slope of the...400 Ultrah ig pressu h re Amphibolite 10−6 Eclogite 600 Granulite Ultrahigh temperatures 0 20 |
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