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首页> 外文期刊>Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften: ZDGG >The Altenhain Rhyolite-a subvolcanic rock in the mid-European Chemnitz-Floha Volcanic Zone (Pennsylvanian, SE Germany)
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The Altenhain Rhyolite-a subvolcanic rock in the mid-European Chemnitz-Floha Volcanic Zone (Pennsylvanian, SE Germany)

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摘要

Late Paleozoic (Variscan) magmatism is widespread in Central Europe. One of the critical areas that contributes to the understanding of the complex volcanotectonic processes at the Pennsylvanian to Cisuralian transition is the Chemnitz-Floha Volcanic Zone (CFVZ). The latter is part of the type region of the Saxo-Thuringian Zone of the European Variscides. For the Altenhain Rhyolite, which is part of the CFVZ we present a complete dataset concerning its whole-rock geochemis-try. The potassium-rich Altenhain Rhyolite originated from a highly differentiated, calc-alkaline, peraluminous, A-type granitic melt with an intra-plate signature. There are strong geochemical similarities to the Floha Ignimbrite and the Zeisig-wald Tuff pyroclastics, both belonging to the CFVZ. The occurrence of a rare mineral from the arsenogoyazite/arsenoflor-encite-(Ce) solid solution series is recognised.

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