 | | Journal (article/letter/editorial) | | crystallization vs. recrystallization origin of garnet pyroxenite-eclogite within subduction related lithologies...displaying transition between clinopyroxenite and eclogite within peridotite from felsic granulite in the...metamorphism. The selected mafic layer for this study is represented by garnet with omphacite in the core of...clinopyroxene in the matrix is diopside. In addition, garnet contains inclusions of omphacite, alkali feldspars...along with compositional zoning in garnet from the clinopyroxenite-eclogite layers favour solid-state |  | Pearson, D.G., Davies, G.R., Nixon, P.H., Greenwood, P.B., Mattey, D.P. (1991) Oxygen isotope evidence for the origin of pyroxenites in the Beni Bousera peridotite massif, North Morocco: derivation from subducted oceanic lithosphere. Earth and Planetary Science Letters, 102 (3) 289-301 doi:10.1016/0012-821x(91)90024-c | Journal (article/letter/editorial) | | the origin of pyroxenites in the Beni Bousera peridotite massif, North Morocco" derivation from subducted...pseudomorphs after diamond, in the Beni Bousera peridotite massif show marked oxygen isotope heterogeneity...values (+ 5.3 to + 6.1%o). Coexisting clinopyroxene-garnet and clinopyroxene-orthopyroxene mineral pairs from...stability field. 1. Introduction The Beni Bousera peridotite massif, is situated in the Rif Mountains of North...forms part of a SE-plunging antiform surrounded by garnet-sillimanite gneisses. Spinel lherzolite is the |  | Downes, H., Bodinier, J.-L., Thirlwall, M. F., Lorand, J.-P., Fabries, J. (1991) REE and Sr-Nd Isotopic Geochemistry of Eastern Pyrenean Peridotite Massifs: Sub-Continental Lithospheric Mantle Modified by Continental Magmatism. Journal of Petrology, Special_Volume (2) 97-115 doi:10.1093/petrology/special_volume.2.97 | Journal (article/letter/editorial) | | Sr-Nd Isotopic Geochemistry of Eastern Pyrenean Peridotite Massifs: Sub-Continental Lithospheric Mantle...segregates from tholeiitic magmas. Clinopyroxenes from garnet clinopyroxenites have bell-shaped REE patterns...basaltic magmas which have reacted with pre-existing peridotite. The metasomatism of the Caussou massif is also...E S ET AL. EASTERN PYRENEAN PERIDOTITE MASSIFS The Pyrenean peridotite massifs are tectonic ultramafic...of foliated spinel lherzolites, with spinel and garnet pyroxenites defining a layering concordant to foliation |  | | Journal (article/letter/editorial) | | 2005 Petrogenesis of the Yangkou layered garnet-peridotite complex, Sulu UHP terrane, China RU Y. ZHANG...Taipei, Taiwan, R.O.C. ABSTRACT The Yangkou garnet-peridotite complex in the Sulu UHP terrane, eastern China...The blocks consist mainly of garnet lherzolite and garnet clinopyroxenite with small amounts of eclogite...Lherzolitic garnet is generally homogenous in composition (Prp64-67Alm23-24Grs10-12Sps1). Garnet (Prp51-63)...(Prp51-63) from clinopyroxenite contains more pyrope component than eclogitic garnets (Prp29-35). Porphyroblastic |  | | Journal (article/letter/editorial) | | and osmium isotopic study of a thick pyroxenite layer from the Beni Bousera Ultramafic Complex of northern...pyroxenite layer from the Beni Bousera massif. The two main rock types included in the layer, garnet pyroxenites...are, in most respects, more refractory than the garnet pyroxenites, but, surprisingly, are more enriched...characteristics can be explained by formation of the layer by crystal deposition along a magma conduit at medium...age of formation of the layer. In contrast, Sm-Nd model ages from the layer are mutually conflicting |  | Zhao, Ruixuan, Liou, Juhn G., Tsujimori, Tatsuki, Zhang, Ru Y. (2007) Petrology and U-Pb SHRIMP Geochronology of a Garnet Peridotite, Sulu UHP Terrane, East-Central China. International Geology Review, 49 (8) 732-752 doi:10.2747/0020-6814.49.8.732 | Journal (article/letter/editorial) | | Petrology and U-Pb SHRIMP Geochronology of a Garnet Peridotite, Sulu UHP Terrane, East-Central China a a...Petrology and U-Pb SHRIMP Geochronology of a Garnet Peridotite, Sulu UHP Terrane, East-Central China, International...Petrology and U-Pb SHRIMP Geochronology of a Garnet Peridotite, Sulu UHP Terrane, East-Central China RUIXUAN...Tasmania] at 04:27 16 January 2015 Abstract Garnet clinopyroxenite at Rizhao occurs as a lens 100 × 225 m2...m2 within a serpentinized peridotite body, in fault contact with felsic gneiss. Minor dunite also occurs |  | | Journal (article/letter/editorial) | | Mineralogist, Volume 88, pages 1591–1600, 2003 Clinopyroxenite from the Sulu ultrahigh-pressure terrane, eastern...eastern China: Origin and evolution of garnet exsolution in clinopyroxene RU Y. ZHANG* AND JUHN G. LIOU...California 94305, U.S.A. ABSTRACT The Rizhao garnet clinopyroxenite occurs as small mantle slices faulted into...ultrahigh-pressure (UHP) terrane, China. Two representative garnet clinopyroxenites with exsolution microstructures...grossularrich garnet (>20 vol%) + ilmenite (~3–4 vol%) in a fine-grained matrix of clinopyroxene + garnet + ilmenite; |  | | Journal (article/letter/editorial) | | Diamond Fades Pyroxenites from the Beni Bousera Peridotite Massif, North Morocco Department of Earth Sciences...of pyroxenite layers within the Beni Bousera peridotite massif is investigated by means of elemental...crystallized clinopyroxene, orthopyroxene, and garnet. The pressure of crystallization is constrained...extensive sample suite from the Beni Bousera peridotite massif, to place more stringent constraints on...July 10, 2014 The large dimensions of orogenic peridotite massifs allow in situ study of mantle compositions |  | | Journal (article/letter/editorial) | | deck, consists of garnet-kyanite quartzofeldspathic gneiss, mafic two-pyroxene garnet granulite, and a...10–15 m-thick layer of eclogitic HIGH P–T GRANULITES IN THE SNOWBIRD TECTONIC ZONE 83 garnet clinopyroxenite...Godfrey granite (Fig. 2). of eclogitic garnet clinopyroxenite and associated sapphirine granulites which...been mapped along strike for c. 15 km (Fig. 2). Garnet–clinopyroxene exchange thermometry yields 950–1000...deformation occurred in the high pressure granulite field (garnet + clinopyroxene + quartz; 1.4–1.2 GPa at 750–800 |
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