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Metamorphic history of garnet-rich gneiss at Ktiš in the Lhenice shear zone, Moldanubian Zone of the southern Bohemian Massif, inferred from inclusions and compositional zoning of garnet

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    0360768 - GLÚ 2012 RIV NL eng J - Journal Article
    Kobayashi, T. - Hirajima, T. - Kawakami, T. - Svojtka, Martin
    Metamorphic history of garnet-rich gneiss at Ktiš in the Lhenice shear zone, Moldanubian Zone of the southern Bohemian Massif, inferred from inclusions and compositional zoning of garnet.
    Lithos. Roč. 124, 1/2 (2011), s. 46-65. ISSN 0024-4937. E-ISSN 1872-6143
    Institutional research plan: CEZ:AV0Z30130516
    Keywords : Bohemian Massif * Lhenice shear zone * garnet * P-T path * partial melting
    Subject RIV: DB - Geology ; Mineralogy
    Impact factor: 3.246, year: 2011

    Multiple equilibrium stages were identified from garnet-rich gneiss at Ktiš in the Lhenice shear zone of the southern Bohemian Massif, Czech Republic. The matrix of the rock mainly comprises cordierite (Crd), sillimanite (Sil), biotite (Bt), garnet (Grt), quartz (Qtz), K-feldspar (Kfs) and plagioclase (Pl) along with accessory minerals such as spinel (Spl), apatite (Ap), monazite (Mnz) and zircon (Zrn). Bt, Sil, kyanite (Ky)and Pl occur as inclusion phases in Grt. Some coarse-grained (N3 mm)Grts show chemical heterogeneity both in major and trace elements. Grossular (Grs)-content is homogeneous and high {Xgrs=Ca/(Ca+Mg+Fe+Mn)=0.27} in a center of the grain and smoothly decreases towards the grain margin (Xgrs=0.02). However, pyrope (Prp)-content shows an inverse pattern against Grs content.
    Permanent Link: http://hdl.handle.net/11104/0198240

     
     
Number of the records: 1  

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