0145086 - GLU-S 20004020 RIV DE eng J - Journal Article
Ulrych, Jaromír - Pivec, Edvín - Lang, Miloš - Lloyd, F. E.
Ijolitic segregations in melilite nephelinite of Podhorní vrch volcano, West Bohemia.
Neues Jahrbuch für Mineralogie. Abhandlungen. Roč. 175, č. 3 (2000), s. 317-348. ISSN 0077-7757. E-ISSN 0077-7757
R&D Projects: GA ČR GA205/99/0907
Institutional research plan: CEZ:AV0Z3013912
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 0.612, year: 2000

The Miocene Podhorní vrch volcano (15-12 Ma), situated near Mariánské Lázně in western Bohemia, is associated with a tectonic zone striking NNW - SSE and pertains to the Neogene Cheb-Domažlice Graben. The volcanic products represent undifferentiated melts of mantle origin of olivine nephelinite composition: Mg# (70-72); Cr (410-570 ppm), Ni (240-380), Co (50-55), Sc (24-29); the presence of harzburgite xenoliths. 87Sr/86Sr (0.7035) and 143Nd/144Nd (0.51286) isotope ratios (WILSON et al. 1994) correspond to HIMU OIB form a sublithospheric source.
Permanent Link: http://hdl.handle.net/11104/0042700