| | 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...Darmstadt, Schnittspahnstrasse 9, D-64287 Darmstadt, Germany Fax: +06151 166539 e-mail: schulte@hrz1.hrz.th-darmstadt...the South Urals (49Ā°Nā56Ā°N). The greenschist- to eclogite facies metamorphic Maksyutov Complex trends 180 | | 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-UniversitaĢt, Corrensstrasse 24, D-48149 MuĢnster, Germany (m.a.smit@uni-muenster.de) ABSTRACT Eclogites...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 2.3ā2.8 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 | | | 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) | to account for the garnet peridotite and eclogite outcrops in the Alpe Arami peridotite mass near Bellinzona...6~ on the north side of Moldefjord in Romsdal district, some 45 miles N.W. of Tafjord. Lappin (1962,...PERIDOTITE 325 C) gg I0 PERIDOTITE 11 I OUTCROPS 2 I kms. r .0 ~'~J' c9 i 9 /i" UGELVI K...of granulite facies but later retrogressed to almandine-amphibolite facies. The critical assemblages observed...silica deficient basic assemblages, while in the eclogite facies the assemblage garnet + clinopyroxene + | | 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 | | | 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) | S0016-7037(00)00801-8 Oxygen isotope equilibrium between eclogite minerals and its constraints on mineral Sm-Nd...systems of eclogite minerals. The omphaciteā 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 | | | 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...f 11 Ma; Paquette et al., 1984). Moreover, one eclogite (La Richaudais) has been recently dated, yielding...yielding an age of ,413 f 16 Ma for the eclogite-facies metamorphism and an age of 2208 ?r 39 Ma for its...present study, one eclogite and three metagabbros were sampled from two different outcrops. The Horst des | | 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 ā metapelite and quartz...block-in-matrix relationships involving abundant lensoidal eclogite bodies enclosed in the enveloping metapelite. | | | Journal (issue) | up or prices going up because dealers got into āminingā and specimen recovery which is spendy, so they...crystals in this specimen from the Hansonburg district (Socorro County, New Mexico). brain, nervous...the expression āmad as a hatterā. While cinnabar mining and mercury retorting once took a terrible toll...China. Portugal (Panasqueira mines, Castelo Branco district) is in the Dave alters, cellular molecules, which...many pesticides and insectimain hazard comes from mining and milling containers and table utensils from | | Dobretsov, N.I., Reverdatto, V.V., Sobolev, V .S., Sobnlev, N.V., Ushakova, Ye. N., Khlestov, V .V. (1966) Distribution of regional metamorphism fades in U.S.S.R. International Geology Review, 8 (11) 1335-1346 doi:10.1080/00206816609474411 | Journal (article/letter/editorial) | t he facies of regional metamorphism, i.e. the outcrops of geologic bodies bounded by certain fairly rigorously...and gneisses 1-2 - lines bounding the gabbro-eclogite transition province 3 - line of sill imanite-disthene...(glaucophane-lawsonite, disthene schists and gneisses, and eclogite). Boundary between the first two groups is determined...of lawsonite stability and the lower limit of almandine stability. Boundary between facies VI and VII...predilection for ancient platform structures. All outcrops of these formations are confined to the Archean | | | Journal (article/letter/editorial) | Jo ur crust. In SW Mongolia, the Alag Khadny eclogite-bearing accretionary complex (AKC) is assumed...Hf isotopes. 1. Introduction Blueschist- and eclogite-bearing metamorphic complexes of high (HP) and...retrogression obscuring potential relics of the eclogite-facies peak assemblages (Wallis et al., 2005;...2018; this study) recognized and reported that eclogite boudins and lenses are strictly confined to the...metapelites observed only in the southeastern eclogite-bearing zone (Fig. 2). Three representative samples | | | Journal (article/letter/editorial) | conductivity of OHābearing omphacite and garnet in eclogite: the quantitative dependence on water content...Ā© Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Eclogite is potentially an important...electrical conductivity of omphacite and garnet in eclogite has been measured at 1 GPa and 350ā800 Ā°C with...are used to model the bulk conductivity of an eclogite with different water contents and modal compositions...combination with reported data, the conductivity of the eclogite is similar to that of typical granulites above | | Cheng, Hao, Liu, Yumeng, Vervoort, Jeffrey D., Lu, Honghua (2015) Combined U-Pb, Lu-Hf, Sm-Nd and Ar-Ar multichronometric dating on the Bailang eclogite constrains the closure timing of the Paleo-Tethys Ocean in the Lhasa terrane, Tibet. Gondwana Research, 28 (4) 1482-1499 doi:10.1016/j.gr.2014.09.017 | Journal (article/letter/editorial) | Ar-Ar multichronometric dating on the Bailang eclogite constrains the closure timing of the Paleo-Tethys...Editor: Z.M. Zhang Keywords: Lhasa terrane Tibet Eclogite LuāHf Subduction a b s t r a c t The Lhasa terrane...and plate suturing processes in this area. An eclogite from the Bailang, eastern Lhasa terrane, was investigated...thermobarometric calculations indicate that the Bailang eclogite equilibrated at peak PāT conditions of ~2.6 GPa...as the age of eclogite-facies metamorphism and the LuāHf age likely pre-dated the eclogite-facies metamorphism | | 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) | ultramaļ¬c rocks. Metamorphic grades range from UHP eclogite facies to greenschist facies. Eclogites occur...(3) the Central Dabie UHP eclogite facies unit, (4) the South Dabie HP eclogite facies unit, and (5) the...inferred for the Dabie eclogites are: (1) Prograde eclogite-facies metamorphism (phengite + omphacite inclusions...inclusions within garnet porphyroblasts), (2) Coesite eclogite-facies metamorphism (coesite + K-rich omphacite...inclusions within garnet), (3) Recrystallized eclogite-facies metamorphism represented by coarse-grained | | | Journal (article/letter/editorial) | Geosciences, University of Frankfurt, Frankfurt am Main, Germany. 2 Research Station in Bishkek, Russian Academy...conductivity of xenoliths collected from the basaltic outcrops in the south Tien Shan Range. The Tien Shan mountains...closing of the Turkestan Basin and formation of eclogite in subduction zones occurred at a depth of about...[Simonov et al., 2008a, 2008b]. Now the Tien Shan eclogite complexes mark the suture zone of the closure...illustrating the locations of basaltic and eclogite outcrops and the magnetotelluric (MT) profile across | | 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 =...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 PāT paths during the development | | | Journal (article/letter/editorial) | 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)...eclogites yet. Since the discovery of coesite-bearing eclogite from the western Dabieshan terrane (Wang et al...petrography and mineralogy for the representative eclogite samples from the western Dabieshan terrane; (ii) | | Liu, Lishuang, Liu, Fulai, Liu, Pinghua, Wang, Wei, Ji, Lei, Wang, Fang, Cai, Jia (2018) Petrology, geochemistry and geochronology of the meta-mafic rocks in the North Sulu ultrahigh-pressure belt: Implications for their petrogenetic diversity and complex tectonic evolution. Precambrian Research, 316. 127-154 doi:10.1016/j.precamres.2018.08.002 | Journal (article/letter/editorial) | (Fulai Liu) ABSTRACT The ultrahigh-pressure (UHP) eclogite and country rocks of the North Sulu UHP metamorphic...irregular lenses and thin layers together with UHP eclogite in the Haiyangsuo-Wuji-Weihai area along the northwestern...(803ā760 Ma) protolith ages and underwent UHP eclogite facies metamorphism in the Middle Triassic (233ā225...of orthogneiss, irregular lenses or blocks of eclogite and ultramafic rocks, and supracrustal rocks (Cong...the matrix or as inclusions in the zircons of eclogite, ultramafic rocks, orthogneiss and supracrustal | | 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; | | | Journal (article/letter/editorial) | 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...compositions of gabbros and eclogites from the eclogite type locality in the Eastern Alps (HaĆ¼y, 1822)...which the eclogite precursors formed. In addition, trace element data of eclogites and eclogite minerals | | | Book (edition) | Mineralogy Geochemistry Albertstr. 23 B 79104 Freiburg Germany bucher@uni-freiburg.de Prof. Rodney Grapes Department...Earth and Planetary Science Letters. Freiburg, Germany Seoul, South Korea November 2010 Kurt Bucher Rodney.... . . . . . . . . . . . . . . . . . . . . 9.8 Eclogite Facies Metamorphism . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . 9.8.3 Eclogite Facies in Gabbroic Rocks . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . 10.3.4 Eclogite and Blueschist Facies Granitoids . . . . . . | | | 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 | | | Book | (amphibolite or granulite facies) exposed in surface outcrops (Bohlen and Mezger, 1989) and, in some cases,...Adirondacks, Variscan belt), granulitefacies and eclogite-facies rocks may be important constituents of...derived from the deep crust. These occur as surface outcrops of high-grade metamorphic terranes (e.g., Bohlen...be subordinate in middle-crustal sections and outcrops (described in the next section) compared to felsic...unusual when compared with Precambrian granulite outcrops because they contain a large proportion of mafic |
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