زمين شناسي ساختماني، لرزه خيزي و لرزه زمين ساخت سد خاكي ورزقان ميانه

Tectonic Geology, seismology and seismotectonic of Varzeganʹs dam

The Varzeganʹs dam site is located on northeast of Miyaneh and north of Varzegan. The rocky outcrops of these construction include alternation of volcanic and volcano-classic Eocene rocks that intersected by monzonite dikes. The dam site and itʹs periphery in province is located on central Iran tectonic quake and occurred earthquakes in these region have been shallow and their dominant mechanics is of push-slide type. The seismicity of project is related to Tabriz Fault systems, south of Bozgush, Germi rood, north of Bozgush, Sangoor and Doozdoozan. The fault of south of Bozgush passes over south of place and by E-W virtual direction, near the Varzegan, that spaced around 1 km with Varzegan dam place itʹs mechanics is push and of fault plane is steep and northward and has been caused to moving of volcanic and volcano- classic Eocene sediments from north to south on plio-Quaternare sediments, Based on study of quake-based wells and records of earthquakes the seismicity parameters of region has been obtained by using of (Kijko-selevoll) style in range of 250 km respectively.