Number of the records: 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
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Geochemical characteristics of the high- and low-Ti basaltic rocks from the uplifted shoulder of the Ohře (Eger) Rift, Western Bohemia
Author(s)	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}
Source Title	Chemie der Erde-Geochemistry. - : Elsevier - ISSN 0009-2819 Roč. 70, č. 4 (2010), s. 319-333
Number of pages	15 s.
Publication form	WWW - WWW
Language	eng - English
Country	DE - Germany
Keywords	Bohemian Massif ; Ohře Rift ; Eger Rift ; Krušné hory Mts. ; Erzgebirge ; Cenozoic volcanism ; high-Ti basaltic rocks ; geochemistry
Subject RIV	DB - Geology ; Mineralogy
R&D Projects	IAA300130706 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
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
Annotation	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.
Workplace	Institute of Geology
Contact	Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272
Year of Publishing	2011

Number of the records: 1