Počet záznamů: 1

Geochemical characteristics of the high- and low-Ti basaltic rocks from the uplifted shoulder of the Ohře (Eger) Rift, Western Bohemia

SYSNO ASEP	0350041
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Geochemical characteristics of the high- and low-Ti basaltic rocks from the uplifted shoulder of the Ohře (Eger) Rift, Western Bohemia
Tvůrce(i)	Ulrych, Jaromír (GLU-S)_{RID, SAI} Jelínek, E. (CZ) Řanda, Zdeněk (UJF-V)_RID Lloyd, F. E. (GB) Balogh, K. (HU) Hegner, E. (DE) Novák, Jiří Karel (GLU-S)_{RID, SAI}
Zdroj.dok.	Chemie der Erde-Geochemistry. - : Elsevier - ISSN 0009-2819 Roč. 70, č. 4 (2010), s. 319-333
Poč.str.	15 s.
Forma vydání	WWW - WWW
Jazyk dok.	eng - angličtina
Země vyd.	DE - Německo
Klíč. slova	Bohemian Massif ; Ohře Rift ; Eger Rift ; Krušné hory Mts. ; Erzgebirge ; Cenozoic volcanism ; high-Ti basaltic rocks ; geochemistry
Vědní obor RIV	DB - Geologie a mineralogie
CEP	IAA300130706 GA AV ČR - Akademie věd
CEZ	AV0Z30130516 - GLU-S (2005-2011)
	AV0Z10480505 - UJF-V (2005-2011)
UT WOS	000286089000002
EID SCOPUS	78650075900
DOI	10.1016/j.chemer.2010.05.001
Anotace	High-Ti melanephelinite, medium-(phono)tephrite, and low-Ti basanite are specific rock types in the Cenozoic Volcanic Province. A contrasting melanephelinite to (phono)tephrite series occurs in the Loučná–Oberwiesenthal Volcanic Centre associated with basanites on the SW periphery of the Krušné hory. The volcanic rocks intrude the Variscan basement of the uplifted shoulder of the Ohře/Eger Rift. Low Mg and Cr, Ni contents and enrichment of incompatible elements in the high-Ti melanephelinites contrast with the composition of primitive low-Ti basanites displaying high Mg and high contents of compatible elements. The large variation in initial strontium isotope ratios of high-Ti melanephelinites at similar epsilon Nd values is interpreted as evidence for melting of metasomatized lithospheric mantle sources comprising K-bearing phases with radiogenic Sr. The initial isotope ratios of all samples are consistent with HIMU-mantle sources and contributions from lithospheric mantle.
Pracoviště	Geologický ústav
Kontakt	Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272
Rok sběru	2011

Počet záznamů: 1