Title

R. B. Serzhantov, S. N. Kashubin, Yu. M. Erinchek, V. Yu. Tatarinov, E. D. Milshtein

Deep geological and geophysical study of the Russia’s subsurface: current status and key tasks

Investigation of deep crustal interfaces on the basis of the State network of geological and geophysical transects, parametric and superdeep wells is one of the most effective methods for studying the tectonic evolution of the Earth, its geodynamic regime, association of deep processes and nearsurface phenomena. The main tasks facing these studies are listed. The total amount of superlong DSS lines performed in Russia until 1994 is about 57,000 linear km, modern integrated geological and geophysical lines – over 27,500 linear km. More than 10 superdeep and parametric wells were drilled. The fundamental results of work in the main regions of the country are given, including the Eastern Arctic in order to obtain additional geological and geophysical data to update the submission for establishment of the outer limits of the continental shelf.
Key words: geologicalgeophysical transect, Earth’s crust, deep seismic investigations, superdeep and parametric wells.