Cenozoic alkaline volcanic series in Western Ohře (Eger) Rift: Age relations and geochemical constraints

0145611 - GLU-S 20023188 RIV CZ eng J - Článek v odborném periodiku
Ulrych, Jaromír - Balogh, K. - Cajz, Vladimír - Novák, Jiří Karel - Frána, Jaroslav
Cenozoic alkaline volcanic series in Western Ohře (Eger) Rift: Age relations and geochemical constraints.
Acta Montana. Rada A, B. 21 (125), - (2002), s. 55-76. ISSN 1211-1910
Grant CEP: GA ČR GA205/99/0907
Grant ostatní: Hungarian Academy of Science Foundation(HU) T 014961 (Hungarian-Czech Project: Comparative volcanostratigraphy of Neoidic volcanism of the Bohemian Massif and Pannonian Basin.
Výzkumný záměr: CEZ:AV0Z3013912
Klíčová slova: alcaline volcanic rock * Ohře (Eger) Rift * geochemistry
Kód oboru RIV: DB - Geologie a mineralogie

The following Cenozoic alkaline volcanic rock series were recognized on W Bohemia: Oligocene-Miocene (31-20 Ma) volcanic of the Ohře Rift, 1.1. the Doupovské hory Mts. with unimodal series of ol. nephelinite - basanite to tephrite - (phonolite) (31-26 Ma), 1.2. the Ohře Rift region between the Doupovské hory Mts. and the Mariánské Lázně Fault Zone with the unimodal series of (melilite-bearing) ol. nephelinite - tephrite (24-21/16). 2. Middle to Late Miocene (17-8/7 Ma) volcanics of the Tepelská vrchovina Highland and Slavkovský les Mts. developed in two coexisting series: 2.1. weakly alkaline series: basanite? - trachybasalt - (basaltic) trachyandesite - trachyte - (rhyolite) (15.9/12.8-11.4/6.5/ and 2.2 strongly alkaline series: (melilite-bearing) ol. nephelinite - tephrite (16.5-8.3 Ma), 3. Quaternary (0.4-0.1 Ma) volcanics of the Cheb area at the junction of the structures of the Ohře Rift and the Cheb-Domažlice Graben with (melilite-bearing) ol. nephelinite.
Trvalý link: http://hdl.handle.net/11104/0043183