Počet záznamů: 1
Geochemical discrimination of metasedimentary sequences in the Krkonoše-Jizera Terrane (West Sudetes, Bohemian Massif): paleotectonic and stratigraphic constraints
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SYSNO ASEP 0145783 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Geochemical discrimination of metasedimentary sequences in the Krkonoše-Jizera Terrane (West Sudetes, Bohemian Massif): paleotectonic and stratigraphic constraints Tvůrce(i) Winchester, J. A. (GB)
Patočka, František (GLU-S) SAI
Kachlík, V. (CZ)
Melzer, M. (GB)
Nawakowski, C. (GB)
Crowley, Q. G. (GB)
Floyd, P. A. (GB)Zdroj.dok. Geologica Carpathica. - : Slovenská akadémia vied - ISSN 1335-0552
Roč. 54, č. 5 (2003), s. 267-280Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. SK - Slovensko Klíč. slova geochemistry ; metasediments ; tectonic setting Vědní obor RIV DD - Geochemie CEP IAA3111102 GA AV ČR - Akademie věd CEZ AV0Z3013912 - GLU-S UT WOS 000187610900001 EID SCOPUS 0347530134 Anotace The geochemical analyses of metasedimentary units of the Krkonoše Mountains provided evidence about similar material composition and also ages of the Radčice and Poniklá Groups (Cambrian, Ordovician to Silurian-Devonian equivalents predominate). These rocks must be put together into one group only (proposed name - Vrchlabí Group, mostly Paleozoic). The Vrchlabí Group differs from the older Machnín Group (mostly Proterozoic), but also from the Paleozoic Velká Úpa Group. The Paleozoic series differs in many characteristics, but relatively low Th/Sc and Ce/Yb ratios are particularly significant in the Vrchlabí Group. The geochemistry of metasediments reflects the complex evolution of the West Sudetes, which started with Cambrian and Ordovician intracontinental rifting, subsequent sea-floor spreading and formation of large basins, to end with accumulation and bounded collision of segments of arcs and micro-plates. Pracoviště Geologický ústav Kontakt Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Rok sběru 2004
Počet záznamů: 1