Petrology of alkali basalts of Zlot, Timok Magmatic Complex (Eastern Serbia)

Autor:	Miodrag Banješević, Dragan Milovanović, S. Karamata
Rok vydání:	2005
Předmět:	Basalt Fractional crystallization (geology) Mantle wedge Alkali basalt Geochemistry Magma chamber engineering.material chemistry.chemical_compound Geophysics chemistry engineering Plagioclase Phenocryst Petrology Geology Earth-Surface Processes Magnetite
Zdroj:	Tectonophysics. 410:501-509
ISSN:	0040-1951
Popis:	Alkali basalts were discovered in the Timok Magmatic Complex only in a borehole near Zlot. They are composed of plagioclase and clinopyroxene phenocrysts lying in intersertal to pilotaxitic groundmass. The characteristic feature of these rocks is the high content of needle shaped magnetite. Various disequilibrium features in alkali basalt of Zlot reflect complex convection effects and recharge, most probably in a shallow magma chamber. Major and trace elements data indicate that alkali basalts of Zlot originated from magmas deriving from metasomatized mantle wedge above a subducting and dehydrating plate. However the investigated rocks did not originate from primary magmas, but from a magma which has undergone considerable fractional crystallization.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6eca880bf47def54467135df738ab7b2 https://doi.org/10.1016/j.tecto.2005.06.012 Zobrazit plný text záznamu Full Text from ScienceDirect