Age Relations and Geochemical Constraints of Cenozoic Alkaline Volcanic Series in W Bohemia: A Review

0145755 - GLU-S 20033127 RIV CZ eng J - Článek v odborném periodiku
Ulrych, Jaromír - Lloyd, F. E. - Balogh, K.
Age Relations and Geochemical Constraints of Cenozoic Alkaline Volcanic Series in W Bohemia: A Review.
Geolines. Roč. 15, - (2003), s. 168-180. ISSN 1210-9606.
[Hibsch 2002 Symposium. Teplá near Třebenice, Ústí nad Labem, Mariánské Lázně, 03.06.2002-08.06.2002]
Grant CEP: GA ČR GA205/99/0907; GA AV ČR IAA3048201
Výzkumný záměr: CEZ:AV0Z3013912
Klíčová slova: W Bohemia * Cheb-Domažlice Graben * geochemistry
Kód oboru RIV: DB - Geologie a mineralogie
http://geolines.gli.cas.cz/fileadmin/volumes/volume15/G15-168.pdf

The following Cenozoic alkaline volcanic rock series were recognized in W Bohemia: 1. Early Oligocene-Early Miocene (31-20 Ma) volcanics of the Ohře Rift as far as to the Franconian Line. 2. Middle to Late Miocene (16.5-8.3 Ma) volcanics (not dated yet) synchronous with the graben formation dated by its pre-Middle Miocene? (> 11.7 Ma) up to the Late Pliocene sedimentary filling associated with the NE flank of the Cheb-Domažlice Graben. 3. Pleistocene (0.43-0.11 Ma) volcanics of the Ohře Rift and the Cheb-Domažlice Graben junction. Parental magmas of all these rocks series are inferred to have originated by low-degree melting of metasomatized sub-rift mantle initiated at >31 Ma. The mantle source was probably lithospheric mantle metasomatized by plume-like material.
Trvalý link: http://hdl.handle.net/11104/0043304