The tectonic framework and hydrocarbon prospectivity of the western Yenisei-Khatanga regional trough

The western part of the Yenisei-Khatanga trough is one of the least explored regions, which are thought to possess an excellent hydrocarbon resource potential. This region is geographically located in the southern part of the Taimyr Peninsula, within the Krasnoyarsk Territory. Utilizing regional seismic data, structure and thickness maps for seismic sequences allowed the reconstruction of the structural framework and tectonic evolution of the region. The study reveals a number of tectonic processes in the region that took place in the Paleozoic, Mesozoic, and Cenozoic and establishes the main evolutionary stages of a series of large structures of different ranks. The study also provides some insights into the structural features and depositional environments of Paleozoic, Triassic-Jurassic, Neocomian, Aptian-Albian-Cenomanian, and Turonian-Cenozoic sedimentary sequences. Based on the relationship between tectonic activity and hydrocarbon generation, the conclusion was made about a high hydrocarbon resource potential of the Neocomian clinoform sequence in the Yenisei-Khatanga regional trough. (C) 2011, V. S. Sobolev IGM, Siberian Branch of the RAS. Published by Elsevier B. V. All rights reserved.