Baltic provenance of top-Famennian siliciclastic material of the northern Rhenish Massif, Rhenohercynian zone of the Variscan orogen

0498620 - GLÚ 2019 RIV DE eng J - Journal Article
Kołtonik, K. - Pisarzowska, A. - Paszkowski, M. - Sláma, Jiří - Becker, R.T. - Szczerba, M. - Krawczyński, W. - Hartenfels, S. - Marynowski, L.
Baltic provenance of top-Famennian siliciclastic material of the northern Rhenish Massif, Rhenohercynian zone of the Variscan orogen.
International Journal of Earth Sciences. Roč. 107, č. 8 (2018), s. 2645-2669. ISSN 1437-3254. E-ISSN 1437-3262
Institutional support: RVO:67985831
Keywords : Detrital zircon * Framennian sandstones * Hangenberg event * Baltica
OECD category: Geology
Impact factor: 2.295, year: 2018
Method of publishing: Open access
https://link.springer.com/article/10.1007/s00531-018-1628-4

The provenance of top-Famennian sedimentary rocks linked to the Hangenberg Crisis from the northern Rhenish Massif (Germany) was investigated by the means of detrital zircon U-Pb geochronology. Based on the obtained age spectra, three main tectonothermal domains are recognized as possible sources: Paleo- and Mesoproterozoic (~ 2000–1000 Ma) units of Baltica and Early Paleozoic Caledonian orogen (~ 500–400 Ma). Our interpretation of the detritus having been derived from northern source areas, i.e., Baltica and the Scandinavian Caledonides, with a minor input of German-Polish (Rügen-Pomeranian) Caledonides, contradicts the traditional view that, during the Upper Devonian, the northern Rhenish Massif was supplied by detritus from the south. Complementary mineralogical, textural and geochemical analyses point to a derivation of the detritus of Drewer and Hangenberg Sandstones mainly from felsic, recycled continental crust. The elevated concentrations of Pb and Zn in the studied sections are a feature attributed to hydrothermal alteration related to the terminal Devonian synsedimentary volcanism or post-depositional Variscan deformation.
Permanent Link: http://hdl.handle.net/11104/0291496