Late orogenic magmatism and sedimentation within Late Carboniferous to Early Permian basins in the Balkan terrane (Bulgaria): geodynamic implications

摘要: The orogenic Balkanid belt, which developed between the Moesian Plate and Moravian-Rhodopi-Thracian Massifs, was affected by Late Carboniferous Early Permian opening of W-E oriented graben structures. progressive tectonic rejuvenation basins is demonstrated deposition repeated regional sedimentary cycles, associated with volcanism that mostly localised along boundaries, in an intramontane setting. represented rhyodacitic explosive products hyaloclastites, andesitic flows. During Permian, subvolcanic rhyolitic bodies prevailed western sectors, whereas ignimbrites occur to east. tectonically active are interpreted due late collapse, alternation extensional tectonics minor compressional phases consistent transtensional regime, Variscan suture Pangaea. volcanic activity evolution matches petrogenetic features from early dacitic – Southern European segment system. These Carboniferous-Early tectono-magmatic events Bulgaria characterized, compared homologous Permo-Carboniferous sequences some segments belt.