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)

Loecse Frank; Schneider Gitta; Linnemann UlfRoessler Ronny

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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)

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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 Dolitzsch, Rudigsdorf, Rochlitz and Wolftitz tuffs and the Rochlitz-alpha 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.

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《Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften: ZDGG》 |2023年第1期|7-30|共24页
作者
Loecse Frank; Schneider Gitta; Linnemann UlfRoessler Ronny;
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作者单位

Museum Nat Kunde Chemnitz;

Tech Univ Bergakad Freiberg;

Senckenberg Nat Hist Sammlungen Dresden;

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正文语种英语
中图分类地质学;
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stratigraphy; geochemistry; geochronology; volcanism; Pennsylvanian; Cisuralian; central Europe; CHEMICAL CLASSIFICATION; COLLECTION HISTORY; BOHEMIAN MASSIF; CHEMNITZ BASIN; PORPHYRY TUFF; FLOHA BASIN; TREE FERN; ROCKS; ERZGEBIRGE; DISCRIMINATION;

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)

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