 | Kechid, Sid-Ali, Parodi, Gian Carlo, Pont, Sylvain, Oberti, Roberta (2017) Davidsmithite, (Ca,□)2Na6Al8Si8O32: a new, Ca-bearing nepheline-group mineral from the Western Gneiss Region, Norway. European Journal of Mineralogy, 29 (6) 1005-1013 doi:10.1127/ejm/2017/0029-2667 | Journal (article/letter/editorial) |
| occurs as a rock-forming mineral in the Liset eclogite pod (Norwegian Caledonides). It is transparent...unit formula, with some Na and □. In the Liset eclogite pod, davidsmithite occurs in retrogressed, formerly...plagioclase and taramitic amphibole. This eclogite occurrence is noted for its bulk-rock compositions rich...Ca-silicate; nepheline group; feldspathoid; Liset eclogite pod; Norway. un 5 28 1. Introduction 29 30...information on its occurrence in the retrogressed Na– Al-rich K–Mg-poor Liset eclogite pod in the Norwegian |
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| mineralization. The only other eclogite occurrence recorded in Brazil, at Pouso Alegre, state of Minas Gerais, has...paper. The comparison with the only other eclogite occurrence known in Brazil (Hoppe et al., 1989), and...cupriferous titanomagnetite ore occurrence at Serrote da Lage, state of Alagoas (Horbach and Marimon...geological setting. The Fazenda Boa Esperan~a-Bodoc6 occurrence Some lenses of metamorphosed mafic to ultramafic...lenses and bore holes but with only one large occurrence. Other types of ore are disseminated ores composed |
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| Petrology of the nyb6ite-bearing eclogite in the Donghai area, Jiangsu Province, eastern China T . HIRAJIMA...Nyb6ite occurs as porphyroblasts in the Jianchang eclogite in the Donghai area, northeastern Jiangsu Province...Province, eastern China. The Jianchang eclogite contains some inclusions of quartz after coesite in clinopyroxene...associated with jadeitic pyroxene in the Jianchang eclogite, although other porphyroblastic amphiboles in...pseudomorphs indicate P - T conditions in the Jianchang eclogite of about 740 + 60 ~ and more than 28 kbar. Similar |
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| Petrology of the nyb6ite-bearing eclogite in the Donghai area, Jiangsu Province, eastern China T . HIRAJIMA...Nyb6ite occurs as porphyroblasts in the Jianchang eclogite in the Donghai area, northeastern Jiangsu Province...Province, eastern China. The Jianchang eclogite contains some inclusions of quartz after coesite in clinopyroxene...associated with jadeitic pyroxene in the Jianchang eclogite, although other porphyroblastic amphiboles in...pseudomorphs indicate P - T conditions in the Jianchang eclogite of about 740 + 60 ~ and more than 28 kbar. Similar |
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| range, 450–650 °C and 18–28 kbar: the stability of eclogite G. REBAY,1 R. POWELL2 AND J. F. A. DIENER3 1 Dipartimento...temperature eclogite (with T ¼ 600 °C) represents a significant part of the occurrences of eclogite in orogenic...orogenic belts. ÔTrueÕ eclogite, with, for example, garnet + omphacite >70%, is well represented in such...such an occurrence. Calculated phase equilibria in Na2O–CaO–K2O–FeO–MgO–Al2O3– SiO2–H2O–TiO2–O (NCKFMASHTO)...are used to see under what circumstances ÔtrueÕ eclogite is predicted to occur. The variables considered |
 | 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; |
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| evolution of the continental crust. I. The gabbro-eclogite transition revisited D.J. Ellisa and M.A.H. Maboko...evolution of the continental crust. I. The gabbro-eclogite transition revisited. In: D.D. van Reenen, C....55: 491-506. We report the first occurrence of retrograde eclogite shear zones cutting Proterozoic granulites...Shear, in which lower-temperature, fine-grained eclogite developed. This demonstrates that mafic rocks...thermodynamic stability field of eclogite without undergoing transformation to eclogite. We agree with Harte et |
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| peridotite bodies and of external orthopyroxene eclogite lenses directly enclosed within the gneisses on...Equivalent P-T estimates for external orthopyroxene eclogite lenses within the basement gneisses on both islands...mantle-derived peridotite bodies and external orthopyroxene eclogite lenses, is also shown to have been subjected to...noted by Smith (1984, 1988). However, for some eclogite occurrences, the additional presence of orthopyroxene...calibrated mineral assemblage reaction equilibria, of eclogite stabilization pressures that are consistent with |
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| Netherlands Sm-Nd isotopic systematics of a gabbro-eclogite transition MAI BRITT E. MORK* and EUAN W. MEARNS...of a gabbro-eclogite transition. In: W.L. Griffin (Editor), Second International Eclogite Conference....transition to eclogite; (2) coronitic leuco-gabbro norite; and (3) country-rock eclogite, all from the...original igneous Nd isotopic composition. Results for eclogite minerals suggest Caledonian ages, but these phases...texturally equilibrated and strongly deformed eclogite within adjacent gneisses have been disturbed on |
 | KIENAST, J. R., LOMBARDO, B., BIINO, C., PINARDON, J. L. (1991) Petrology of very-high-pressure eclogitic rocks from the Brossasco-Isasca Complex, Dora-Maira Massif, Italian Western Alps. Journal of Metamorphic Geology, 9 (1) 19-34 doi:10.1111/j.1525-1314.1991.tb00502.x | Journal (article/letter/editorial) |
| instead indicating a close similarity to some of the eclogite bodies occurring in the Adula nappe of the Central...Western Alps; eclogite; glaucophane stability; whiteschist. INTRODUCTION The occurrence of eclogite rocks is...high-pressure (HP) conditions, since most country rocks to eclogite are apparently devoid of HP mineral assemblages...Carswell, 1990). For this reason investigations of eclogite rocks which occur within tectonic units where...comprises a complex of polymetamorphic gneisses with eclogite and marble, intruded by large bodies of late Palaeozoic |
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| microstructures in garnet, titanite and clinozoisite from an eclogite of the Lower Schist Cover, Tauern Window, Austria...Universität Berlin, D-1063 Berlin Abstract: An eclogite sample from the Lower Schist Cover of the Tauern...few tens of metres distant from the intercalated Eclogite Zone, was studied by transmission electron microscopy...explained as the result of imbrication of the Eclogite Zone. Key-words: garnet, titanite, clinozoisite...Introduction Transmission electron microscopy (TEM) of eclogite minerals from the Tauern Window reveals a fascinating |
 | Halama, Ralf, Savov, Ivan P., Garbe-Schönberg, Dieter, Schenk, Volker, Toulkeridis, Theofilos (2013) Vesuvianite in high-pressure-metamorphosed oceanic lithosphere (Raspas Complex, Ecuador) and its role for transport of water and trace elements in subduction zones. European Journal of Mineralogy, 25 (2) 193-219 doi:10.1127/0935-1221/2013/0025-2281 | Journal (article/letter/editorial) |
| Armbruster, 2006). In this study, we describe the occurrence of vesuvianite in high-pressure metamorphosed...the dykes. We provide a detailed account of the occurrence of vesuvianite in this high-pressure ophiolite...and the Raspas Complex is the only known eclogite occurrence among Andean HP rocks (Feininger, 1980; Arculus... and the El Toro Formation, which consists of eclogite-facies, serpentinised peridotites (Feininger,...as the eclogite-facies crustal rocks of the associated Raspas Formation. First, the occurrence of chlorite-tremolite |
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| 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 |
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| masses which occur among gneisses in the Tafjord district of Norway are cold intrusions emplaced as crystalline...be established between the peridotites and the eclogite bodies in the surrounding gneiss. Chemical analyses...(1932). Williams concluded that the peridotite and eclogite nodules which are enclosed in kimberlite were...peridotites in the course of a classic memoir on the eclogite province of South Norway. Eskola concluded that...Garnet-Peridotite and Peridotite Occurrences in the Tafjord District, Norway The ground described lies south of the |
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| the estimation of metamorphic temperatures of eclogite, garnet granulite and garnet peridotite. Since...positive correlation between Xjd and T in two eclogite samples from Jianchang in the Donghai area of...composition on KD 83 ies, lenses and layers of eclogite and eclogitic rocks, ultramafic bodies and minor...UHP metagranitoid and abundant coesite–bearing eclogite are present in this locality (Hirajima et al....the Sulu region. Petrologic characteristics of eclogite and eclogitic rocks in this area have also been |
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| s ev i e r. c o m / l o c a t e / l i t h o s Eclogite from the ultrahigh-pressure metamorphic unit at...Cignana ransmission electron microscopy Coesite–eclogite Crystal defects Omphacite Amphibole a b s t r...metamorphism. We have studied the minerals of two eclogite samples from this unit using transmission electron...deformation microstructures from the UHP Lago di Cignana eclogite and other HP occurrences, it is unlikely that... however, will increase the shear strength of eclogite and the coupling with the overriding plate, which |
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| Science Letters 123 (1994) 61-70 Newly discovered eclogite in the southern Appalachian orogen, northwestern...first reported eclogite (sensu stricto) in the southern Appalachian orogen. The eclogite occurs at the...craton. The primary metamorphic assemblage in the eclogite is garnet + omphacite + quartz + rutile. Hornblende...facies phases in the eclogite. Pressure-temperature estimates for the primary eclogite assemblage are consistent...also occur within the shear zone containing the eclogite. The presence of high-pressure metamorphic rocks |
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| Dasgupta Keywords: eclogite warm subduction zones arc magmatism gabbro-to-eclogite transition earthquakes...transitions from dry, rigid gabbro to hydrated eclogite and eclogite mylonite, which occurred when these rocks...arc magmatism is indirectly indicated by the occurrence of magmatic gaps in subduction zones where, instead...thermodynamic would predict; the transition of gabbro to eclogite is extremely fluid-limited and remains overstepped...that results in the infiltration of fluids and the occurrence of faroverstepped mineral reactions (Austrheim |
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| – 265 www.elsevier.com/locate/lithos Kyanite eclogite xenolith from the orthogneiss terrane of the Tisza...2007 Abstract New evidence for high-pressure, eclogite facies metamorphism in the crystalline basement...(southern Hungary) is reported. The retrogressed mafic eclogite forms a small lens in the orthogneiss and it was...in the borehole near Jánoshalma. The carbonated eclogite contains the peak metamorphic assemblage omphacite...Carbonatization along the veins of the retrogressed eclogite was probably coeval with formation of these symplectites |
 | 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 |
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| and the U/Pb age of zircons from the Hareidland Eclogite in the Western Gneiss Region of Norway D.A. Carswell...other eclogite-facies mineral phases within metamorphic zircons separated from the large eclogite body...these rocks and for the metastable preservation of eclogite-facies mineralogies. D 2003 Elsevier Science B...B.V. All rights reserved. Keywords: Coesite; Eclogite; Zircon; Raman spectroscopy; Age; Norway 1. Background...Background The petrology and petrogenesis of the eclogite on Hareidland, some 23 km SW of the west Norway |
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| multiplicity faults in deformed omphacite from eclogite WOLFGANG FRIEDRICH MÜLLER1*, FRANK E. BRENKER2...Abstract: Deformed and recovered omphacite from an eclogite sample of the Lower Schist Cover of the Tauern...acting as slip planes is given. The frequent occurrence of CMFs in omphacite suggests that 1/2[011](010)...Tauern Window. 1. Introduction The rheology of eclogite plays a major role in subduction zones (see, e...their fabric and microstructural study of four eclogite samples representative of different strain types |
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| Eklogits. Summary Preliminary Note on a New Eclogite Occurrence in the Crystalline Complex o] South Carpathians...(Romania) Description of a recently discovered eclogite from the amphibolite complex of the Mehedin,ti-Highland...Berichtigungen. Literatur Banno, S., and Y. Matsui, 1965: Eclogite Types and Partition of Mg, Fe, and )/in between |
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| metamorphic rocks, including garnet peridotite, eclogite, HP granulite, and HP amphibolite, are important...garnet amphibolite, 358 F 10 Ma, two samples of eclogite, 341 F 8 and 344 F 7 Ma, and garnet peridotite...Application of commonly accepted thermobarometers to eclogite (grt + cpx F ky F phn F pg F zo) yields a range...2003 Elsevier B.V. All rights reserved. Keywords: Eclogite; Garnet peridotite; Sm – Nd geochronology; Variscan;...Variscan; South Carpathians 1. Introduction Eclogite facies metamorphism is a well-documented feature |
 | LIU, Y.-C., LI, S.-G., GU, X.-F., XU, S.-T., CHEN, G.-B. (2007) Ultrahigh-pressure eclogite transformed from mafic granulite in the Dabie orogen, east-central China. Journal of Metamorphic Geology, 25 (9) 975-989 doi:10.1111/j.1525-1314.2007.00739.x | Journal (article/letter/editorial) |
| 1111/j.1525-1314.2007.00739.x Ultrahigh-pressure eclogite transformed from mafic granulite in the Dabie...crust have not been identified yet. Here an eclogite occurrence that formed during subduction of the mafic...metamorphic stages: (a) an early granulite facies, (b) eclogite facies, (c) retrograde metamorphism of high-pressure...inclusions, indicating a metamorphic overgrowth at eclogite facies. The almost identical ages of the two types...interpreted as indicating that the protolith of the eclogite is mafic granulite that originated from underplating |
