Литосфера (Jan 2015)
<sup>40</sup>Ar/<sup>39</sup>Ar age of the granitoid deformations in the Verkhisetsk batholith as the index of the collision processes time in the Eastern sector of the Urals
Abstract
It was performedthe 40Ar/39Ar dating of the biotites from the strong deformed tonalites of Western Verkhisetsk complex in the zone of Serov-Mauk fault. It was determined that the main phase of deformations with predominantly sinistral component occurred around 315-310 Ma ago. This data supports the ideas of several uralian geologists that the continental collision process started with the overthrust dislocations and later transformed into left-lateral faults. In Early Permian time (278-276 Ma) the studied rocks undergone secondary termal influence probably caused by the dislocations with normal-fault character. The signs of these dislocations were defined in the investigated rocks.
