 | 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) | | Universität Potsdam, Postfach 601553, D-14415 Potsdam, Germany ABSTRACT New petrographic evidence and a review...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...Cover units (para-autochthon, lower, middle and upper allochtrons) Basement gneisses, mangerite and anorthosite...Hornelen Ultramafic bodies: GU - garnetiferous Eclogite with prograde zoned garnets and no evidence for |  | 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) | | Wilhelms-Universität, Corrensstrasse 24, D-48149 Münster, Germany (m.a.smit@uni-muenster.de) ABSTRACT Eclogites...interstitially between phases of the eclogite facies assemblage: garnet + omphacite + zoisite + clinozoisite +...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 |  | | Journal (article/letter/editorial) | | Electrical conductivity of OH‑bearing omphacite and garnet in eclogite: the quantitative dependence on water...© Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Eclogite is potentially an important...deep crust and upper mantle. The electrical conductivity of omphacite and garnet in eclogite has been measured...the experimental runs. The conductivity of both omphacite and garnet increases with temperature, and the...the activation enthalpy is ~ 82 kJ/mol for omphacite and 90 kJ/mol for garnet, which is nearly independent |  | 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 geochemical recycling between crust and deep upper mantle, and tectonic processes responsible for growth...investigation of devolatilization processes in the upper mantle. One fertile, but so far neglected avenue...and III), quartz-eclogite (Unit III) and coesiteeclogite facies to diamond-eclogite facies (Unit II) |  | | Report (chapter) | | Glaucophane and barroisite eclogites from the Upper Kaghan nappe: implications for the metamorphic history...glaucophane- and barroisite-bearing eclogites from the Upper Kaghan nappe in the Higher Himalayan Crystallines...garnet-omphacite-phengite-quartz-rutile eclogites previously described elsewhere in the Upper Kaghan...assemblage is garnet omphacite-rutile-quartz in glaucophane eclogite and garnet-omphacite-zoisiterutile _+kyanite..._+kyanite _+phengite _+ankerite in barroisite eclogite. Most samples contain a significant amount of amphibole |  | | Journal (article/letter/editorial) | | Schulte · P. Blümel Metamorphic evolution of eclogite and associated garnet-mica schist in the high-pressure...interlayered with metabasic garnet–omphacite schists and enclose eclogite boudins in the high-pressure metamorphic.... The Fe/Mg distributions between garnet rim–omphacite and garnet rim–phengite pairs indicate different...for the eclogite boudin, an intermediate temperature (630°C, >1.7 GPa) for the foliated eclogite and the...Darmstadt, Schnittspahnstrasse 9, D-64287 Darmstadt, Germany Fax: +06151 166539 e-mail: schulte@hrz1.hrz.th-darmstadt |  | 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...coesite within an eclogite in the WGR. This coesite is preserved (armoured within omphacite in turn enclosed...Figure 1-1) within a small, partly retrograded, eclogite pod at Grytting, near Selje, in the SW part of |  | | Journal (article/letter/editorial) | | experiment”, Ruhr-University, D-44780 Bochum, Germany Accepted 9 April 1997 Abstract The metamorphic...uplift from depths of more than 100 km into the upper crust. If such data were correct, the P-T path and...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 |  | | Journal (article/letter/editorial) | | textural variety of eclogite characterized by a two-fold occurrence of omphacite -- as older microlites...determined by electron microprobe spot analysis. All omphacite analyses of both porphyroblasts and microlites...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...increase in PH20 (eclogite facies). (3) Post-eclogite stage, when the garnet--omphacite association ceased |  | 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 |  | 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...the Pohorje Mountains. The presence of garnet, omphacite and quartz inclusions in unfractured zircon indicates |  | 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) | | reversed fractionations between omphacite and garnet in some eclogite samples. The d18 O values of y4...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) | | 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) | | 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) | | 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;...unit) (Bulgatov, 1983) and the Dzhaltuk series (upper unit) (Mitrofanov, 1978), intruded CE by anatectic |  | Sheng, Ying-Ming, Xia, Qun-Ke, Dallai, Luigi, Yang, Xiao-Zhi, Hao, Yan-Tao (2007) H2O contents and D/H ratios of nominally anhydrous minerals from ultrahigh-pressure eclogites of the Dabie orogen, eastern China. Geochimica et Cosmochimica Acta, 71 (8) 2079-2103 doi:10.1016/j.gca.2007.01.018 | Journal (article/letter/editorial) | | available online 30 January 2007 Abstract Garnet and omphacite from ultrahigh-pressure eclogites from the Dabie...MicroFTIR. The results show that all garnet and omphacite grains contain structural water occurring as hydroxyl...than that retained in hydrous phases occurring in upper mantle domains. However, garnet and clinopyroxene...were recently investigated in garnet, rutile and omphacite minerals from Kokchetav eclogites (Katayama and...water were detected (up to 870 ppm H2O wt in omphacite and 1735 ppm H2O wt in garnet). In this paper |  | | 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...thus attainment of isotopic equilibrium in the omphacite– garnet O system suggests achievement of Nd isotope...pairs. The presence or absence of fluid in the eclogite protoliths is a major rate-controlling factor...disequilibrium has been often observed between garnet and omphacite, resulting in geologically meaningless isochron |  | 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; |  | | 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...plagioclase–spinel in kyanite; and diopside–plagioclase in omphacite. The microfractures are often arranged en echelon...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 |  | 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...fabric in the eclogite is defined by alternation of garnet-rich (grs = 22–29 mol.%) and omphacite-rich (jd...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) | | clinopyroxene – plagioclase intergrowths after omphacite, (ii) replacement of kyanite by corundum – plagioclase...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 |  | | Journal (article/letter/editorial) | | indicate that distinct mantle sources existed for the eclogite protoliths 1.3 Ma ago, and that enrichment in...structural development. The sporadic occurrence of eclogite outcrops throughout these complexes is a notable feature...polyphase structural and metamorphic history. The upper unit, mainly metagraywackes with amphibolitic dykes...younger metamorphic event, which affected both the upper and lower units, is recorded in a metagranitic body...f 11 Ma; Paquette et al., 1984). Moreover, one eclogite (La Richaudais) has been recently dated, yielding |  | | Journal (article/letter/editorial) | | not changed significantly during the gabbro to eclogite transformation because trace elements are redistributed...Nb, Ta) and zircon (Zr, Hf ) at eclogite-facies conditions. Omphacite hosts most of the Li in addition...matrix rutile and rutile included in garnet, omphacite or kyanite, suggesting that these temperatures... 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 (Haüy, 1822) |  | Kim, Taehwan, Kim, Yoonsup, Cho, Moonsup, Lee, Jong Ik (2019) P–Tevolution and episodic zircon growth in barroisite eclogites of the Lanterman Range, northern Victoria Land, Antarctica. Journal of Metamorphic Geology, 37 (4) 509-537 doi:10.1111/jmg.12474 | Journal (article/letter/editorial) | | prograde assemblages (M1) consist of garnet + omphacite + barroisite/Mg-pargasite + epidote + phengite...quartz; and subsequent M2 assemblages of garnet + omphacite + barroisite + phengite + rutile ± quartz. The...imaging of zircon grains separated from a barroisite eclogite revealed three distinct zones with bright rim...moderately dark core. Eclogitic phases such as garnet, omphacite, epidote, and rutile are present as fine-grained...1. INTRODUCTION The worldwide occurrences of eclogite in suture zones are the product of high-P metamorphism |
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Eclogite outcrops, Weißenstein, Stammbach, Hof District, Upper Franconia, Bavaria, Germany