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Late Paleozoic volcanic rocks of the Intra-Sudetic Basin, Bohemian Massif: Petrological and geochemical characteristics
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SYSNO ASEP 0103880 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Late Paleozoic volcanic rocks of the Intra-Sudetic Basin, Bohemian Massif: Petrological and geochemical characteristics Title Svrchnopaleozoické vulkanity z vnitrosudetské pánve v Českém masívu: petrologická a geochemická charakteristika Author(s) Ulrych, Jaromír (GLU-S) RID, SAI
Fediuk, F. (CZ)
Lang, Miloš (GLU-S) RID, SAI
Martinec, Petr (UGN-S) RIDSource Title Chemie der Erde-Geochemistry. - : Elsevier - ISSN 0009-2819
Roč. 64, č. 2 (2004), s. 127-153Number of pages 27 s. Language eng - English Country DE - Germany Keywords Late Paleozoic ; volcanic rocks ; Bohemian Massif Subject RIV DB - Geology ; Mineralogy R&D Projects IAA3013903 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) UT WOS 000223296200002 EID SCOPUS 3042543944 DOI https://doi.org/10.1016/j.chemer.2003.11.002 Annotation Late Paleozoic volcanic rocks in the Intra-Sudetic Basin of the Bohemian Massif in the Czech Republic can be subdivided into two series: (I) a minor bimodal trachyandesite-rhyolite series of Upper Carboniferous age with initial 87Sr/86Sr of ca. 0.710 and Nd values of -6.1 also characteristic of volcanics of the near Krkonoše Piedmont Basin (0.707 and -6.0, Ulrych et. al., 2003) and (II) a major differentiated basaltic trachyandesite- trachyandesite-trachyterhyolite series of Lower Permian age with lower initial 87Sr/86Sr of ca. 0.705-0.708 and Nd values ranging from -2.7 to -3.4/-4.1. The mafic rocks represent mantle-melt(s) overprinted by crust during assimilation-fractional crystallization. The Sr-Nd isotopic data confirm a significant crustal component in the volcanic rocks that may have been inherited from the upper mantle source and/or from assimilation of older crust during magmatic underplating and shallow-level melt fractionation. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Tel.: 226 800 273 Year of Publishing 2005
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