Active tectonics of Er？ek Lake Basin and lithostratigraphy of basin deposits (Van, Turkey)

The Er？ek Lake Basin (ELB) is located in the eastern part of Van Lake and has an area of approximately 100 km2. The eastern section presents gully morphology towards ？zalp. Oligo-Miocene and Plio-Quaternary units cover the basement rocks of the study area. Oligo-Miocene units are folded on both the southern and northern parts of ELB. However, in the north of the basin, northward dipping thrust faults generally developed along E-W. In the south, the fold axes differ by a maximum of 30 ° from the E-W to the north. The distribution of the structural elements within the Plio-Quaternary units is rather limited, and these are more prominent in the north of the Er？ek Lake. There are a few normal faults in these structural elements. The development of these normal faults occurred as a consequence of the N-S compression in the region and developed in the active tectonic evolution of the region. The Kozluca left lateral strike-slip fault, which also deforms the western margin of Lake Er？ek and the intra-lake morphology, is one of the other intra-plate structural elements within the contracted continental crust