Low-temperature thermochonological constraints on the Alpine evolution of the central parts of Sredna Gora Zone, Bulgaria

ブルガリアSredna Gora帯中央部のアルプス造山期の発達への低温領域の熱年代学的制約

Balkanska, E.*; Georgiev, S.*; Kounov, A.*; Anti, M.*; 田上 高広*; 末岡 茂   ; Wijbrans, J.*; Peytcheva, I.*

Balkanska, E.*; Georgiev, S.*; Kounov, A.*; Anti, M.*; Tagami, Takahiro*; Sueoka, Shigeru; Wijbrans, J.*; Peytcheva, I.*

We present the first apatite and zircon fission-track results coupled with new muscovite and biotite Ar/Ar analysis on samples from the pre-Mesozoic granitic basement and the Upper Cretaceous to Danian volcano-sedimentary cover, which allowed us to reveal the Alpine thermal and tectonic evolution of the central parts of Sredna Gora Zone. Our new results disclosed the existence of several heating and cooling episodes related to different tectonic and magmatic events in the studied area.