Laptev Sea Oil- and Gas-Bearing Basin
Laptev Sea Oil- and Gas-Bearing Basin – one of the four OGB of the Eastern Arctic. It occupies almost the entire shelf of the Laptev Sea. According to geophysical research, the OGB is formed on the large Laptev platform, composed of rocks of the Mesozoic–Cenozoic age. The maximum bent part of the platform (9–8 km) is linked with the South Laptev Depression filled with Proterozoic, Paleozoic, and Mesozoic–Cenozoic rocks. Shows of oil and gas in these rocks were found in wells drilled on the coast and Khatanga and Olenyok bays. Numerous oil shows were identified there in outcrops on the coast, including the largest deposit of asphalts (the Olenyok River). The extensive Trofimovskiy uplift, located on the northern coast of the delta of the Lena River and occupying part of the delta and sea areas, is considered highly promising and priority target for the search for oil and gas in this OGB.