Browsing Institutt for geofag by Author "Gac, Sebastien"
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Gac, Sebastien; Abdelmalak, Mohamed Mansour; Faleide, Jan Inge; Schmid, Daniel Walter; Zastrozhnov, Dmitry (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Extensional processes can lead to complex crustal configuration depending on the mechanisms of lithospheric thinning and the impact of magmatic additions during rifting and breakup. In this context, we studied the Vøring ...
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Gac, Sebastien; Hansford, Peter Anthony; Faleide, Jan Inge (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)The SW Barents Sea is an epicontinental platform consisting of N- to NNE-oriented basins separated by basement highs. The basins were formed during four distinct rift-phases in the Carboniferous, Late Permian, Late ...
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Indrevær, Kjetil; Gac, Sebastien; Gabrielsen, Roy Helge; Faleide, Jan Inge (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)The Loppa High area has been subject to several events of uplift and subsidence from the Late Paleozoic to Present. The driving mechanisms behind the vertical movements, however, are not fully understood. We propose that ...
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Gac, Sebastien; Minakov, Alexander; Shephard, Grace; Faleide, Jan Inge; Planke, Sverre (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Late Cretaceous‐Cenozoic contractional structures are widespread in the Barents Sea. While the exact dating of the deformation is unclear, it can only be inferred that the contraction is younger than the early Cretaceous. ...
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Abdelmalak, Mohamed Mansour; Gac, Sebastien; Faleide, Jan Inge; Shephard, Grace; Tsikalas, Filippos; Polteau, Stephane; Zastrozhnov, Dmitry; Torsvik, Trond Helge (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)The formation of the NE Atlantic conjugate margins is the result of multiple rifting phases spanning from the Late Paleozoic and culminating in the early Eocene when breakup was accompanied with intense magmatic activity. ...
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Corseri, Romain; Gac, Sebastien; Faleide, Jan Inge; Planke, Sverre (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)The Mjølnir structure, SW Barents Sea, is one of the best-preserved marine impact craters on Earth. After impact on the paleo-seafloor about 142 Ma ago, this crater experienced an atypical deformation of its central peak, ...