| | 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...Kaghan nappe and metamorphic evolution of the eclogite-bearing units of the Neelum valley just to the...indicate that the eclogite occurrences of the Kaghan-Neelum area define an eclogite-bearing terrane of | | | Journal (article/letter/editorial) | Geology, Tongji University, 200092, Shanghai, P.R. China ABSTRACT Detailed electron- and ion-microprobe...ultrahigh-pressure (UHP) metamorphic eclogite from Dabie, east-central China. Compositional profiles of both...slab exhumation. Keywords: Atoll garnet, fluid, eclogite, Dabie INTRODUCTION Chemical zoning of metamorphic...in an eclogite from the Dabie ultrahigh-pressure (UHP) metamorphic belt in east-central China. These...located at Huangzhen in southern Dabie, east-central China, which has been recognized as the most extensive | | 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...Alps and the DabieāSulu terrane of eastā central China, may clarify the source and nature of ļ¬uids involved...from coesite-bearing eclogites and quartzites from China (Yui et al., 1995; Zheng et al., 1996; Baker et...derived from the stable isotope work in east-central China are: (1) an external oxygen-bearing ļ¬uid did not | | | Journal (article/letter/editorial) | between phases of the eclogite facies assemblage: garnet + omphacite + zoisite + clinozoisite + quartz...Pressure and temperature conditions for the main eclogite stage are estimated to be 2.3ā2.8 GPa and 585ā655...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) | 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 | | Zheng, Yong-Fei, Fu, Bin, Xiao, Yilin, Li, Yiliang, Gong, Bing (1999) Hydrogen and oxygen isotope evidence for fluidārock 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) | UniĆersity of Science and Technology of China, Hefei 230026, China Received 7 April 1998; accepted 24 November...metamorphic rocks in the eastern Dabie Mountains, China. The d18 O values of eclogites cover a wide range...fractionations between omphacite and garnet in some eclogite samples. The d18 O values of y4 to y1ā° for some...metamorphism. Heterogeneous d18 O values for the eclogite protoliths implies not only the varying degrees...Keywords: Stable isotope; Fluidārock interaction; Eclogite; Metamorphism; Plate subduction; The Dabie Mountains | | 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 UndersĆøkelse. Rapport 2003.056. Norges Geologiske UndersĆøkelse (NGU) | Report (issue) | Brueckner; formatted & collated by E. A. Eide County: NGU Commune: MĆøre og Romsdal; Sogn og Fjordane...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 ā 28th, 2003 in SELJE...spectroscopy, of an occurrence of coesite within an eclogite in the WGR. This coesite is preserved (armoured | | | Journal (article/letter/editorial) | Elsevier B.V. All rights reserved. Keywords: Kyanite eclogite; Geochemistry; P ā T conditions; Pohorje; Slovenia...and ThoĢni, 1995; Magetti et al., 1987) to the eclogite type locality Kor- and Saualpe in the East (HauĢy...or even late Proterozoic (Manby et al., 1988) eclogite-facies event. The eclogites from the Pohorje Mountains...the southern extension of the Koralpe ā Saualpe eclogite zone. The Pohorje eclogites were first described...78 (2004) 235ā261 Alpine, possibly Caledonian, eclogite-facies metamorphism (Hinterlechner-Ravnik et al | | | Journal (article/letter/editorial) | not changed significantly during the gabbro to eclogite transformation because trace elements are redistributed...incompatible trace elements are predominantly hosted in zoisite/clinozoisite (Sr, Pb, U, Th, LREE), apatite (Sr...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...compositions of gabbros and eclogites from the eclogite type locality in the Eastern Alps (HaĆ¼y, 1822) | | | 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 | | | Journal (article/letter/editorial) | eclogites from the Western Dabieshan Terrane, Central China C. J. WEI, Y. J. LI, Y. YU AND J. S. ZHANG MOE Key...Space Sciences, Peking University, Beijing 100871, China (cjwei@pku.edu.cn) ABSTRACT Glaucophane-bearing...in the margins or strongly foliated domains of eclogite blocks due to ļ¬uid inļ¬ltration at PāT conditions...presented in the previous studies. Key words: eclogite; phase equilibrium; PāT path; western Dabieshan...Chinese Tianshan orogen (Wei et al., 2009b), and HP eclogite from the western Dabieshan (Lou et al., 2009) | | | Journal (article/letter/editorial) | rich in hydrous phases, formed along margins of eclogite lenses and along mesoscopic fracture systems....are from 1ā50 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 | | | Journal (article/letter/editorial) | Geol., 50: 201--222. A rare textural variety of eclogite characterized by a two-fold occurrence of omphacite...successive stages of metamorphic evolution: (1) Pre-eclogite stage, when the primary rocks developed the mineral...(greenschist facies). (2) Eclogite stage, when the rock gained typical eclogite mineral compositions as...unaccompanied by an increase in PH20 (eclogite facies). (3) Post-eclogite stage, when the garnet--omphacite...with microlitic omphacite form the groundmass. Zoisite and phengite may be present in small quantities | | Skublov, S. G., Balashov, Yu. A., Marin, Yu. B., Berezin, A. V., Melānik, 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 (UāPb age of zircons from the eclogite is 2721 Ā± 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 | | Guo, Shun, Chen, Yi, Ye, Kai, Su, Bin, Yang, Yueheng, Zhang, Lingmin, Liu, Jingbo, Mao, Qian (2015) Formation of multiple high-pressure veins in ultrahigh-pressure eclogite (Hualiangting, Dabie terrane, China): Fluid source, element transfer, and closed-system metamorphic veining. Chemical Geology, 417. 238-260 doi:10.1016/j.chemgeo.2015.10.006 | Journal (article/letter/editorial) | veins in ultrahigh-pressure eclogite (Hualiangting, Dabie terrane, China): Fluid source, element transfer...veins in ultrahigh-pressure eclogite (Hualiangting, Dabie terrane, China): Fluid source, element transfer...veins in ultrahigh-pressure eclogite (Hualiangting, Dabie terrane, China): fluid source, SC R IP T...Sciences, P.O. Box 9825, Beijing TE D 100029, China. 2. CAS Center for Excellence in Tibetan Plateau...Plateau Earth Sciences, Beijing CE P 100101, China. 3. State Key Laboratory of Marine Geology, Tongji University | | | Journal (article/letter/editorial) | The rocks of the Zermatt-Saas zone reflect an eclogite-facies imprint of Late Cretaceous (loo-80 Ma;...Several authors have estimated the conditions of eclogite-facies metamorphism in the Zermatt-Saas zone (see...calibrated geothermobarometers in the past. The eclogite-facies mineral assemblages were partly re-equilibrated...et al./Lithos metamorphic evolution. An early eclogite-facies metamorphism at ca. 500Ā°C and 1.6 GPa,...the contacts between metasediments and larger eclogite bodies, and as metre sized lenses embedded in | | Li, Xiaoli, Zhang, Lifei, Wei, Chunjing, Slabunov, Alexander I. (2015) Metamorphic PT path and zircon UāPb 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 ļ¬ļ We confirm the clock-wise metamorphic PT path of Belomorian eclogite assemblages;...assemblages; 4 ļ¬ļ Neoarchean age of Belomorian eclogite has been determined; 5 ļ¬ļ Subsequent high-temperature...reworking during the exhumation of Belomorian eclogite 6 assemblages has been suggested at Neoarchean; | | Å TĆPSKĆ, P., CHOPIN, F., SKRZYPEK, E., SCHULMANN, K., PITRA, P., LEXA, O., MARTELAT, J. E., BOLLINGER, C., ŽĆÄKOVĆ, E. (2012) The juxtaposition of eclogite and mid-crustal rocks in the Orlica-Ånieżnik 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 _ OrlicaāSĢnieznik...F-59655 Villeneuve d ĆAscq, France ABSTRACT Eclogite, felsic orthogneiss and garnetāstaurolite metapelite...cleavage, S3, occur locally. The S1 fabric in the eclogite is deļ¬ned by alternation of garnet-rich (grs =...(Si = 3.26ā3.31 p.f.u.) and accessory kyanite, zoisite, rutile and quartz, indicating conditions of 19ā...folding are associated with retrogression of the eclogite under amphibolite facies conditions, and with | | | Journal (article/letter/editorial) | Schulte Ā· P. BlĆ¼mel Metamorphic evolution of eclogite and associated garnet-mica schist in the high-pressure...metabasic garnetāomphacite schists and enclose eclogite boudins in the high-pressure metamorphic Maksyutov...for the eclogite boudin, an intermediate temperature (630Ā°C, >1.7 GPa) for the foliated eclogite and the...the South Urals (49Ā°Nā56Ā°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 | | Liu, Yung-Hsin, Yang, Huai-Jen, Takazawa, Eiichi, Satish-Kumar, Madhusoodhan, You, Chen-Feng (2015) Decoupling of the LuāHf, SmāNd, and RbāSr isotope systems in eclogites and a garnetite from the Sulu ultra-high pressure metamorphic terrane: Causes and implications. Lithos, 234. 1-14 doi:10.1016/j.lithos.2015.07.013 | Journal (article/letter/editorial) | Keywords: Hf isotope Nd isotope UHP metamorphism Sulu Eclogite Protolith a b s t r a c t The whole-rock Hf,...ultrahigh pressure (UHP) metamorphic terrane at eastern China were analyzed to resolve the causes for the decoupling...metamorphic rocks from the DabieāSulu terrane in eastern China, fruitful mineral isochron data have led to vigorous...geochronological background The Sulu terrane in east-central China is the eastern extension of the QinlingāDabie orogenic...insert) formed by the convergence between the North China and Yangtze cratons during early Mesozoic. This | | Miller, Christine, Mundil, Roland, Thƶni, Martin, Konzett, JĆ¼rgen (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) | ThoĢni JuĢrgen Konzett Refining the timing of eclogite metamorphism: a geochemical, petrological, Sm-Nd...within the stability ļ¬eld 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 90.7Ā±3.9 and 90.1Ā±2.0 Ma (Nd: +8) for two eclogite samples. The agreement between U-Pb and Sm-Nd...Austroalpine basement including the Koralpe and Saualpe eclogite type locality in the course of the complex collision | | 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) | ļ¬rstly 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 FlorĆø 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 | | Wang, Huining, Liu, Fulai, Li, Jing, Sun, Zaibo, Ji, Lei, Tian, Zhonghua, Liu, Lishuang, Santosh, M. (2019) Petrology, geochemistry andPāTātpath of lawsoniteābearing retrograded eclogites in the ChangningāMenglian orogenic belt, southeast Tibetan Plateau. Journal of Metamorphic Geology, 37 (4) 439-478 doi:10.1111/jmg.12462 | Journal (article/letter/editorial) | Sciences, Beijing, China 2 Yunnan Institute of Geological Survey, Kunming, China 3 School of Earth...Earth Sciences and Resources, China University of Geosciences, Beijing, China 4 Centre for Tectonics, Exploration...Chinese Academy of Geological Sciences, Beijing, China. Email: lfl0225@sina.com Funding information National...Project of China, Grant/Award Number: 2016YFC0600310; Natural Science Foundation of China, Grant/Award...peak lawsoniteāeclogite facies (M2) at 24ā 26 kbar and 520ā530Ā°C, postāpeak epidoteāeclogite facies decompression | | | Journal (article/letter/editorial) | orogenic movements in a zone extending from Turkey to China (Sengor 1 987). The Indian subcontinent is another...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 PenĀ ninic tectonic | | | Journal (article/letter/editorial) | of a metasomatised lithosphere. The multi-stage eclogite-facies metamorphism is dated at 425-395 Ma (i...ancient inherited component, the age of magmatism, eclogite-facies metamorphism or even the effects of late-stage...to determine the age of protolith magmatism and eclogite-facies metamorphism; equally, we attempt to define...the behaviour of the U-Pb zircon system under eclogite- and amphibolite-facies conditions is better understood...characterized and only poorly developed. Furthermore, eclogite outcrops have been precisely described in these units |
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