TY  - JOUR
A1  - Candan, O.
A1  - Akal, C.
A1  - Koralay, O. E.
A1  - Okay, A. I.
A1  - Oberhänsli, Roland
A1  - Prelevic, D.
A1  - Mertz-Kraus, R.
T1  - Carboniferous granites on the northern margin of Gondwana, Anatolide-Tauride Block, Turkey - Evidence for southward subduction of Paleotethys
JF  - Tectonophysics : international journal of geotectonics and the geology and physics of the interior of the earth
N2  - Carboniferous metagranites with U-Pb zircon crystallization ages of 331-315 Ma crop out in the Afyon zone in the northern margin of the Anatolide-Tauride Block, which is commonly regarded as part of Gondwana during the Late Palaeozoic. They are peraluminous, calc-alkaline and are characterized by increase in Rb and Ba, decrease in Nb-Ta, and enrichment in Sr and high LILE/HFSE ratios compatible with a continental arc setting. The metagranites intrude a metasedimentary sequence of phyllite, metaquartzite and marble; both the Carboniferous metagranites and metasedimentary rocks are overlain unconformably by Lower Triassic metaconglomerates, metavolcanics and Upper Triassic to Cretaceous recrystallized limestones. The low-grade metamorphism and deformation occurred at the Cretaceous-Tertiary boundary. There is no evidence for Carboniferous deformation and metamorphism in the region. Carboniferous arc-type granites and previously described Carboniferous subduction-accretion complexes on the northern margin of the Anatolide-Tauride Block suggest southward subduction of Paleotethys under Gondwana during the Carboniferous. Considering the Variscan-related arc granites in Pelagonian and Sakarya zones on the active southern margin of Laurasia, a dual subduction of Paleotethys can be envisaged between Early Carboniferous and Late Permian. However, the southward subduction was short-lived and by the Late Permian the Gondwana margin became passive. (C) 2016 Elsevier B.V. All rights reserved.
KW  - Carboniferous magmatism
KW  - Paleotethys
KW  - Gondwana
KW  - Afyon zone
KW  - Anatolide-Tauride Block
Y1  - 2016
U6  - https://doi.org/10.1016/j.tecto.2016.06.030
SN  - 0040-1951
SN  - 1879-3266
VL  - 683
SP  - 349
EP  - 366
PB  - Elsevier
CY  - Amsterdam
ER  -