2000/01/01 by E. Musatov, Musatov, E. E., Yulian E. Pogrebitskijl +1
Earth and Planetary Sciences · Engineering · #Geological Studies and Exploration #Hydrocarbon exploration and reservoir analysis #Geological and Geophysical Studies
paper · pdf · doi:10.2312/polarforschung.68.283
The most remarkable tectonic feature of Barents Sea and Kara Sea continental margins is a Cenozoic system of deep troughs anel grabens which follow Devonian-Jurassic paleorifts.These depressions are divided by a number of major domes and uplifts.The dominating tectonic process in the Barcnts-Kara shelf was the successive degradation of an upliftedland within Svalbard-Franz Josef Land-Severnaya Zemlya zone, which served as a terrigcnic source for scdimentary basins of southern and central parts of the continental margin, The general neotectonic regime of the continental margin has caused strong uplift of orogens and shields as weil as shelfic archipelagos Svalbard, Franz Josef Land and Severnaya Zemlya and predominantly subsidence of intracontinental and marginal shelf basins, In general, Cenozoic tectonics were favourable for preservation and re-fonning of oil & gas resourees on the shelf.Late Crctaceous-Danian regressive, Paleocene-Eocene transgressive, Oligocene-Miocene regressive, Pliocene-Pleistocene regressive-transgressive and Holocene transgressive epochs of continental margin evolution are reeognized.Cenozoic development of Arctic was controlled by progressive penetration of processes of riftogenesis and spreading frorn North Atlantic into the Norwegian-Greenland and Eurasian basins, which constrained the contrasting character and circurn-oceanic zoning of tectonic movements at continental margins.