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Geology and petroleum potential of the upper proterozoic basins of northern siberian cratonстатья
- Авторы: Frolov S.V., Sitar K.A., Galushkin Y.I., Akhmanov G.G.
- Сборник: 4th International Conference and Exhibition: New Discoveries through Integration of Geosciences
- Год издания: 2010
- Место издания: European Association of Geoscientists and Engineers, EAGE Saint Petersburg
- Аннотация: In spite of insufficient geological and geophysical knowledge of upper Proterozoic formations in the north of Siberian platform there were several large sedimentary paleobasins. Part of them (for example, Anabar- Kureika and Udza basins) were intracratonic, another part of basins (for example, Turukhansk) were formed on the ancient continental margin. The data analysis of seismic surveys allows to suppose that these basins were the part of similar basins of central platform areas. There are several Riphean source rocks at the different stratigraphic levels. Meanwhile the Lower-Middle source rocks have realized of their hydrocarbon potential in quite a number of cases at the end of Riphean. These hydrocarbon accumulations most probably were destroyed during Baikalian tectonic processes. Maximum of Upper Riphean source rocks hydrocarbon generation was in Palaeozoic. It is the rocks which contribute to formation of oil-andgas accumulation well preserved up to the present moment. The most intensive Vendian sedimentation occurred in the central part of Kureika syneclise area. Discovery hydrocarbon potential first of all refers to sides of syneclise near the slopes of Anabar and Baikit anteclises. We assume that Lower Vendian deltaic and coastal marine sandy bodies are present within these areas.
- Добавил в систему: Фролов Сергей Владимирович