Study of a suite of individual
grains can provide incredible information on depositional systems and tectonic
history. In this study, Vozárová et al. describe U-Pb (SHRIMP) detrital zircon ages from metasandstones
of six stratigraphic levels of the low-grade early Paleozoic Northern Gemeric
basement and its Carboniferous-Permian cover of the western Carpathians,
Central Europe. The results reveal: a) a
source from the Cadomian belt aged at between 550-700 Ma and from West African
craton provenances, of ca. 1.8-2.7 Ga, b) recycling of Precambrian detrital
zircon populations into the Carboniferous-Permian sedimentary basin fill, c) Variscan
(355 Ma) peak metamorphic deformation and closure of the early Paleozoic basin,
and d) extensional processes and high
exhumation and erosion rates of the Variscan collision belt. These dating results are interpreted to
uniquely record the complex sedimentary, metamorphic, and tectonic evolution of
this area.
Pb ages of detrital zircons in relation to geodynamic evolution: Paleozoic of the Northern Gemericum (Western Carpathians, Slovakia) by Anna Vozárová, Dušan Laurinc, Katarína Šarinová,
Alexander Larionov, Sergey Presnyakov, Nickolay Rodionov, and Ilya Paderin
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