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- Title
Carboniferous--Permian volcanic evolution in the mid-European Variscides: U-Pb LA-ICP-MS zircon ages, geochemical and petrographical constraints from the NW Saxonian Volcanic Basin (Germany).
- Authors
Löcse, Frank; Schneider, Gitta; Linnemann, Ulf; Rößler, Ronny
- Abstract
U-Pb isotope ages from magmatic zircon grains are provided for different volcanic rocks of the NW Saxonian Volcanic Basin within the Rochlitz and Wurzen volcanic systems. Measurements were obtained with LA-ICP-MS and revealed late Pennsylvanian to early Cisuralian ages (301-299 Ma). For the Rochlitz Volcanic System supereruption, we present for the first time a radiometric age consistent with biostratigraphic evidence. We report geochemical data for the Gnandstein Andesitoid, the Dölitzsch, Rüdigsdorf, Rochlitz and Wolftitz tuffs and the Rochlitz-α Ignimbrite. The results yield a modified picture of the Kohren, Rochlitz and Oschatz formations as well as new insights into the understanding of the complex volcano-tectonic processes of the NW Saxonian Volcanic Basin, an area of the Saxo-Thuringian Zone of the European Variscides.
- Subjects
EUROPE; CARBONIFEROUS Period; LASER ablation inductively coupled plasma mass spectrometry; ZIRCON; VOLCANIC ash, tuff, etc.; IGNIMBRITE; PERMIAN-Triassic boundary; MASS extinctions; VOLCANIC eruptions; AGE
- Publication
Journal of Applied & Regional Geology / Zeitschrift der Deutschen Gesellschaft für Geowissenschaften (ZDGG), 2023, Vol 174, Issue 1, p7
- ISSN
1860-1804
- Publication type
Article
- DOI
10.1127/zdgg/2023/0359