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dc.contributor.authorKtenas, Dimitrios
dc.contributor.authorHenriksen, Erik
dc.contributor.authorMeisingset, Ivar
dc.contributor.authorNielsen, Jesper Kresten
dc.contributor.authorAndreassen, Karin
dc.date.accessioned2019-03-15T09:32:47Z
dc.date.available2019-03-15T09:32:47Z
dc.date.issued2017-09-19
dc.description.abstractDuring specific intervals within Mesozoic and Cenozoic times, several areas of the southwestern Barents Sea were subjected to uplift and erosion. Areas with missing shallow stratigraphic interval sections and major erosion can be seen at several places along interpreted regional profiles in the southwestern Barents Sea. A new Normal Compaction Trend (NCT) for two selected shale– and sandstone–dominated lithologies has been constructed based on sonic logs in the southwestern Barents Sea. The shale– dominated NCT is calibrated to the Cretaceous shales in the Northern North Sea and Norwegian Sea and applied to the Cretaceous shales of the Barents Sea. The sandstone–dominated NCT is calibrated to the Lower Jurassic Åre Formation of the Norwegian Sea and applied to the Lower Jurassic–Upper Triassic coastal plain section in the Barents Sea. By utilising the NCT model, the study estimates net apparent erosion in 28 selected Barents Sea wells based on comparison of sonic log velocities. A net apparent erosion map of the study area was constructed by gridding of the well values. The accuracy of the map is limited in areas with little well control, such as in the northwest, where the east–west transition into the southwestern Barents Sea region is poorly constrained. With that in mind, the map clearly shows two regional trends which dominate the erosion pattern in the study area; an increasing amount of erosion towards the north and a sharp decrease of erosion westwards of the hinge zone into the southwestern Barents Sea. The highest erosion estimates are observed towards Svalbard, with values up to 2500 m. The results of this study can be further utilized in petroleum system studies in the eroded areas.en_US
dc.descriptionAccepted manuscript version, licensed <a href=http://creativecommons.org/licenses/by-nc-nd/4.0/> CC BY-NC-ND 4.0. </a>Source at: <a href=http://doi.org/10.1016/j.marpetgeo.2017.09.019> http://doi.org/10.1016/j.marpetgeo.2017.09.019 </a>en_US
dc.identifier.citationKtenas, D., Henriksen, E., Meisingset, I., Nielsen, J. K. & Andreassen, K. (2017). Quantification of the magnitude of net erosion in the southwest Barents Sea using sonic velocities and compaction trends in shales and sandstones. <i>Marine and Petroleum Geology, 88</i>, 826-844. http://doi.org/10.1016/j.marpetgeo.2017.09.019en_US
dc.identifier.cristinIDFRIDAID 1520701
dc.identifier.doi10.1016/j.marpetgeo.2017.09.019
dc.identifier.issn0264-8172
dc.identifier.issn1873-4073
dc.identifier.urihttps://hdl.handle.net/10037/14982
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalMarine and Petroleum Geology
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/PETROSENTR/228107/Norway/Research Centre for Arctic Petroleum Exploration/ARCEx/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/317217/EU/Glaciated North Atlantic Margins/GLANAM/en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450en_US
dc.titleQuantification of the magnitude of net erosion in the southwest Barents Sea using sonic velocities and compaction trends in shales and sandstonesen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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