oa Investigations of the Basement Fractured Zones in the Volga-Ural Region

Geological structure of the Russian plate, including the territory of the Tatarstan Republic, and oil and<br>gas presence in the sedimentary cover of this region permit a conclusion that the Precambrian<br>crystalline basement (CB) can be considered as a potential target for hydrocarbon exploration. CB in<br>Tatarstan has been studied by deep drilling to a depth of several hundred metres to 4 km and by up-to<br>-date geophysical and geochemical techniques.