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Trøndelag Platform and Halten–Dønna Terraces Composite Tectono-Sedimentary Element, Norwegian Rifted Margin, Norwegian Sea

2021; Zoological Society of London; Volume: 57; Issue: 1 Linguagem: Inglês

10.1144/m57-2017-13

2041-4722

Halvor Bunkholt, Bjørn Terje Oftedal, John Are Hansen, Helge Løseth, O. S. Kløvjan,

Seismic Imaging and Inversion Techniques

Abstract The Trøndelag Platform and Halten–Dønna Terraces occupy a central part of the Norwegian Sea rifted continental margin off the mid-Norway coast. The margin is expected to hold 4500 Mboe of undiscovered oil equivalents and represents an economically important Arctic province. The geological evolution of the area is closely linked to processes involving the Caledonian Orogeny and subsequent plate tectonic reorganizations, multiphase rifting, continental drift and glaciations across the northern hemisphere. In this chapter we review the geology of the Trøndelag Platform and Halten–Dønna Terraces Composite Tectono-Sedimentary Element based on published data and results of Equinor ASA in-house studies. Three new structural elements are defined for the first time: the Leka fault complex, the Vikna high and the Sula basin.