New results for Palaeozoic volcanic phases in the Prague Basin – magnetic and geochemical studies of Lištice, Czech Republic

Palaeo-, rock magnetic and geochemical studies were conducted on volcanic samples from the Listice area to improve the knowledge of Palaeozoic volcanic evolution in the Prague Basin. The magnetic data display no significant differences between two studied localities, indicating one magnetizing event...

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Bibliographic Details
Published in:	Estonian journal of earth sciences Vol. 64; no. 1; pp. 31 - 35
Main Authors:	Elbra, Tiiu, Schnabl, Petr, Tasaryova, Zuzana, Cizkova, Kristyna, Prunera, Petr
Format:	Journal Article
Language:	English
Published:	Estonian Academy Publishers 01-03-2015
Subjects:	geochemistry Geomagnetism palaeomagnetism Prague Basin rock magnetism Teplá–Barrandian Unit Volcanism Czech Republic
Online Access:	Get full text
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Summary:	Palaeo-, rock magnetic and geochemical studies were conducted on volcanic samples from the Listice area to improve the knowledge of Palaeozoic volcanic evolution in the Prague Basin. The magnetic data display no significant differences between two studied localities, indicating one magnetizing event for both localities. Geochemical data suggest that Listice basalt could have originated from deep melting of the garnet peridotite mantle source during the attenuation and rifting of the continental lithosphere connected with asthenospheric mantle upwelling. The dataset furthermore supports the evidence of syn- or postintrusive fluid interactions and low-temperature stages of alteration. The Ti-magnetite within amygdales of the samples was found to be carrying the characteristic remanent magnetization and reflects probably the Permo-Carboniferous remagnetization of volcanic phases. Key words: Tepla-Barrandian Unit, Prague Basin, palaeomagnetism, rock magnetism, geochemistry.
ISSN:	1736-4728 1736-7557
DOI:	10.3176/earth.2015.06