Sr-sulphate and associated minerals found from kyanite-bearing eclogite in the Moldanubian Zone of the Bohemian Massif, Czech Republic

0350018 - GLÚ 2011 RIV JP eng J - Journal Article
Nakamura, D. - Kobayshi, T. - Shimobayashi, N. - Svojtka, Martin - Hirajima, T.
Sr-sulphate and associated minerals found from kyanite-bearing eclogite in the Moldanubian Zone of the Bohemian Massif, Czech Republic.
Journal of Mineralogical and Petrological Sciences. Roč. 105, č. 5 (2010), s. 251-261. ISSN 1345-6296. E-ISSN 1349-3825
Grant - others:Kyoto University(JP) 14400313
Institutional research plan: CEZ:AV0Z30130516
Keywords : celestine * Sr * eclogite * sulphide * Bohemian Massif
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 0.677, year: 2010

Sr-bearing phase, celestine (SrSO₄), was found in ultrahigh-pressure (UHP) eclogite associated with the Nové Dvory peridotite mass in the Moldanubian Zone of the Bohemian Massif, Czech Republic. Celestine is closely associated with anhydrite (CaSO₄) and sulphides; pyrite, pyrrhotite and chalcopyrite. Fe-rich unknown silicate mineral developing along the margin of the sulphide minerals was also found. Those minerals in the eclogite occur in the matrix that is mainly occupied with fine-grained clinopyroxene aggregate. A common Sr reservoir in eclogite is known to be epidote, but the maximum pressure-temperature (P-T) conditions of the studied eclogite was estimated as about 1000–1100°C, 4.5–4.9 GPa. In such extremely high P-T conditions, epidote should be unstable. In fact, epidote is absent from most of eclogites in the Moldanubian Zone of Czech Republic.
Permanent Link: http://hdl.handle.net/11104/0190122