338 to 335 Ma old intrusions in the Bohemian Massif: a relic of the orogen-wide durbachitic magmatism in European Variscides.

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Authors

KOTKOVÁ Jana SCHALTEGGER Urs LEICHMANN Jaromír

Year of publication 2003
Type Article in Periodical
Magazine / Source Journal of the Czech Geological Society
MU Faculty or unit

Faculty of Science

Citation
Field Geology and mineralogy
Keywords durbachite; syenite; Třebíč massif; Jihlava massif; U-Pb geochronology; magmatism
Description Zircons from durbachite and syenite samples, from Třebíč and Jihlava massifs, were dated. Whereas the durbachite contains complex zircons and gives discordant U-Pb ages, the syenite contains rounded zircons, yielding concordant age of 335 Ma. Both rocks represent relics of the orogen-wide late Variscan magmatism, along with rocks from other parts of the Variscan belt in Europe.
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