Articles | Volume 17, issue 6
https://doi.org/10.5194/se-17-867-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-17-867-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
25 Jun 2026
Research article |
| 25 Jun 2026
| 25 Jun 2026
A vast Caledonian fan and an Ediacaran arc: the contrasting provenance of Devonian clastics of Brunia (Bohemian Massif)
Stephen Collett
CORRESPONDING AUTHOR
Czech Geological Survey, Klárov 3, 118 21 Prague 1, Czech Republic
Igor Soejono
Czech Geological Survey, Klárov 3, 118 21 Prague 1, Czech Republic
Tomáš Kumpan
Department of Geological Sciences, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
Pavel Hanžl
Czech Geological Survey, Klárov 3, 118 21 Prague 1, Czech Republic
Jitka Míková
Czech Geological Survey, Klárov 3, 118 21 Prague 1, Czech Republic
Nikol Novotná
Czech Geological Survey, Klárov 3, 118 21 Prague 1, Czech Republic
Jiří Sláma
Institute of Geology of the Czech Academy of Sciences, Rozvojová 269, Prague, 16500, Czech Republic
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Short summary
Brunia is a Neoproterozoic crustal block whose pre-Variscan history is unclear. New U–Pb and Lu–Hf detrital zircon data from Devonian strata reveal two provenance types. Type-1 spectra reflect recycling of local Brunia arc sources and show isotopic similarity to West Avalonia, indicating a shared Neoproterozoic history. Type-2 spectra match Fennoscandian datasets, implying sediment input from the Caledonides and an Early Devonian connection between Brunia and Baltica.
Brunia is a Neoproterozoic crustal block whose pre-Variscan history is unclear. New U–Pb and...
