The regional Cretaceous development of the southeastern part of the Norwegian Barents Sea- from seismic interpretation
This study sheds new light on the regional Cretaceous development of the southeastern part of the Norwegian Barents Sea. The study area is in the former disputed area between Norway and Russia, which after the agreement on the new borders in 2010 was opened to petroleum activity in 2013. Consequentl...
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UiT Norges arktiske universitet
2018
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Online Access: | https://hdl.handle.net/10037/13099 |
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ftunivtroemsoe:oai:munin.uit.no:10037/13099 2023-05-15T15:11:04+02:00 The regional Cretaceous development of the southeastern part of the Norwegian Barents Sea- from seismic interpretation Heiberg, Vegard 2018-05-15 https://hdl.handle.net/10037/13099 eng eng UiT Norges arktiske universitet UiT The Arctic University of Norway https://hdl.handle.net/10037/13099 openAccess Copyright 2018 The Author(s) VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 GEO-3900 Master thesis Mastergradsoppgave 2018 ftunivtroemsoe 2021-06-25T17:56:00Z This study sheds new light on the regional Cretaceous development of the southeastern part of the Norwegian Barents Sea. The study area is in the former disputed area between Norway and Russia, which after the agreement on the new borders in 2010 was opened to petroleum activity in 2013. Consequently, the southeastern Barents Sea is still a frontier area with less scientific knowledge, compared to the adjacent onshore/offshore areas of Norway and Russia. Here, seismic interpretation have provided increased geological knowledge about the paleo-environment in Early Cretaceous by the use of new 2D data acquired by the Norwegian Petroleum Directorate (NPD) in 2011/2012. Five seismic sequences (S0-S4) have been defined, and geometry and trajectories for identified seismic clinoforms has been described in order to elucidate the depositional history of the study area. This study revealed a successive displacement of the shelf break southwestwards during Early Cretaceous. Furthermore, shelf-edge clinoforms prograded from the northeast towards the southwest, with the main source of sediments located in a hinterland towards the north/northeast. This source area has been related to the uplift of the northern Barents Shelf in Early Barremian-Early Aptian times caused by magmatic activity, also referred to as the High Arctic Large Igneous Province (HALIP). Cyclic variations in the stratigraphic successions suggested fluctuating sea levels during the Early Cretaceous. Post-depositional doming and faulting events, induced by halokinetic movements have altered the Lower Cretaceous successions in the southeastern Barents Sea. Master Thesis Arctic Barents Sea University of Tromsø: Munin Open Research Archive Arctic Barents Sea Norway |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 GEO-3900 |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 GEO-3900 Heiberg, Vegard The regional Cretaceous development of the southeastern part of the Norwegian Barents Sea- from seismic interpretation |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 GEO-3900 |
description |
This study sheds new light on the regional Cretaceous development of the southeastern part of the Norwegian Barents Sea. The study area is in the former disputed area between Norway and Russia, which after the agreement on the new borders in 2010 was opened to petroleum activity in 2013. Consequently, the southeastern Barents Sea is still a frontier area with less scientific knowledge, compared to the adjacent onshore/offshore areas of Norway and Russia. Here, seismic interpretation have provided increased geological knowledge about the paleo-environment in Early Cretaceous by the use of new 2D data acquired by the Norwegian Petroleum Directorate (NPD) in 2011/2012. Five seismic sequences (S0-S4) have been defined, and geometry and trajectories for identified seismic clinoforms has been described in order to elucidate the depositional history of the study area. This study revealed a successive displacement of the shelf break southwestwards during Early Cretaceous. Furthermore, shelf-edge clinoforms prograded from the northeast towards the southwest, with the main source of sediments located in a hinterland towards the north/northeast. This source area has been related to the uplift of the northern Barents Shelf in Early Barremian-Early Aptian times caused by magmatic activity, also referred to as the High Arctic Large Igneous Province (HALIP). Cyclic variations in the stratigraphic successions suggested fluctuating sea levels during the Early Cretaceous. Post-depositional doming and faulting events, induced by halokinetic movements have altered the Lower Cretaceous successions in the southeastern Barents Sea. |
format |
Master Thesis |
author |
Heiberg, Vegard |
author_facet |
Heiberg, Vegard |
author_sort |
Heiberg, Vegard |
title |
The regional Cretaceous development of the southeastern part of the Norwegian Barents Sea- from seismic interpretation |
title_short |
The regional Cretaceous development of the southeastern part of the Norwegian Barents Sea- from seismic interpretation |
title_full |
The regional Cretaceous development of the southeastern part of the Norwegian Barents Sea- from seismic interpretation |
title_fullStr |
The regional Cretaceous development of the southeastern part of the Norwegian Barents Sea- from seismic interpretation |
title_full_unstemmed |
The regional Cretaceous development of the southeastern part of the Norwegian Barents Sea- from seismic interpretation |
title_sort |
regional cretaceous development of the southeastern part of the norwegian barents sea- from seismic interpretation |
publisher |
UiT Norges arktiske universitet |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/13099 |
geographic |
Arctic Barents Sea Norway |
geographic_facet |
Arctic Barents Sea Norway |
genre |
Arctic Barents Sea |
genre_facet |
Arctic Barents Sea |
op_relation |
https://hdl.handle.net/10037/13099 |
op_rights |
openAccess Copyright 2018 The Author(s) |
_version_ |
1766341980519923712 |