Affiliation:
1. Norwegian Petroleum Directorate, PO Box 600, 4003 Stavanger, Norway
2. Norwegian Petroleum Directorate, Storgata 49, 9406 Harstad, Norway
Abstract
Abstract
The North Barents Composite Tectono-Sedimentary Element could represent a prosperous petroleum province in the Arctic, with several large basins, platforms and highs identified. The sedimentary succession ranges from the Late Paleozoic and continues throughout most of the Mesozoic. Terrestrial sediments of the Billefjorden Group (Famennian–Visean) are likely to be present, and are overlain by evaporites and carbonates of the Gipsdalen Group (Serpukhovian–Late Artinskian). Most of the Triassic is dominated by deposits from a huge prograding deltaic system building out from the south, SE and east, becoming successively younger towards NW. The system was primarily sourced from the Urals but also partly from mainland Norway and, most probably, from Taimyr. The progradation started in the Late Permian and reached Svalbard in the Early Carnian. The entire delta system was flooded during the regional Early Norian transgression, resulting in the deposition of marine shales of the Flatsalen Formation (Svalbard) and the time-equivalent Akkar Member of the Fruholmen Formation (Barents Sea). The Cretaceous and the Paleogene are, respectively, comprehensively and completely eroded. During the Pliocene–Pleistocene, the entire Barents shelf was a site of repeated glaciations, resulting in extensive erosion. Hydrocarbon source rocks occur at several stratigraphic levels from the Carboniferous to the Jurassic, of which the most important is assumed to be the Lower–Middle Triassic Steinkobbe/Botneheia Formation. The Upper Jurassic Hekkingen Formation, where present, is likely to be immature across the whole area. Potential reservoir rocks are Permian carbonates and siliciclastic rocks of Carboniferous and Mesozoic age.
Publisher
Geological Society of London
Reference83 articles.
1. Abay, T.B., Karlsen, D.A. and Pedersen, J.H. 2014. Source rocks at Svalbard: An overview of Jurassic and Triassic formations and comparison with offshore Barents Sea time equivalent source rock formations. Search and Discovery Article #30372, AAPG International Conference & Exhibition, 14–17 September 2014, Istanbul, Turkey.
2. Massive blow-out craters formed by hydrate-controlled methane expulsion from the Arctic seafloor
3. Regional constraints of the Sørkapp Basin: A Carboniferous relic or a Cretaceous depression?
4. Regional tectono-sedimentary development of the highs and basins of the northwestern Barents Shelf;Anell I.;Norwegian Journal of Geology,2016
5. Along-strike changes in fault array and rift basin geometry of the Carboniferous Billefjorden Trough, Svalbard, Norway
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献