Late Cenozoic Evolution of the northern North Sea and the North Sea Fan
Abstract The study was mainly focused on the development of the Late Cenozoic shelf outbuilding in the northern North Sea and offshore mid-Norway. Principles of seismic sequence stratigraphy were applied as a tool to understand the processes related to glacial dynamics in a marine setting and to ana...
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ftoslouniv:oai:www.duo.uio.no:10852/12447 2024-10-06T13:50:51+00:00 Late Cenozoic Evolution of the northern North Sea and the North Sea Fan Malla, Smita Johan Peter Nystuen and Jan Inge Faleide 2007 http://hdl.handle.net/10852/12447 http://urn.nb.no/URN:NBN:no-18675 eng eng http://urn.nb.no/URN:NBN:no-18675 Malla, Smita. Late Cenozoic Evolution of the northern North Sea and the North Sea Fan. Masteroppgave, University of Oslo, 2007 http://hdl.handle.net/10852/12447 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.au=Malla, Smita&rft.title=Late Cenozoic Evolution of the northern North Sea and the North Sea Fan&rft.inst=University of Oslo&rft.date=2007&rft.degree=Masteroppgave URN:NBN:no-18675 66110 070977275 geofysikk petroleum geologi Nordsjøen Kvartær Norskehavet Norskerenna Nordsjøvifta sekvensstratigrafi VDP::450 Master thesis Masteroppgave 2007 ftoslouniv 2024-09-12T05:43:54Z Abstract The study was mainly focused on the development of the Late Cenozoic shelf outbuilding in the northern North Sea and offshore mid-Norway. Principles of seismic sequence stratigraphy were applied as a tool to understand the processes related to glacial dynamics in a marine setting and to analyze formation of the North Sea Fan and its relationship to the Norwegian Channel. In terms of seismic stratigraphical architecture, three distinct depositional regimes have been observed during the development of the Late Cenozoic shelf succession of the study area. These have been presented and discussed in megasequence context, which displays how glacial dynamics change basin geometry with respect to space and time. The prograding wedge megasequence I developed mainly due to grounded ice sheets during glacial maxima. The glacial derived sediments were sourced mainly from the uplifted southeastern mainland Norway due to tectonic activities just prior to the onset of extensive glaciation and continued uplift and erosion during glaciations. The huge sediment flux into the basin had consequences in changing the basin configuration; creating large accommodation space in the basin due to isostatic subsidence and shallowing basin margin due to infilling of the basin. This gave a unique situation for the further wedge growth. Continued climate deteriorating, the next extensive shelf edge glaciation started around 1.1 Ma which is very significant in terms of changing the basin geometry from progradation to aggradation. In the mean time Norwegian Channel was formed where ice stream flowed repetitively since 0.5 Ma. During those periods, a series of floating and grounding ice sheets were responsible for giving rise to the aggrading sequences as megasequence II. The second prograding wedge, megasequence NSF (North Sea Fan) developed as the result of fast flowing ice stream in the Norwegian Channel. The continued aggradation in the channel subsequently gave rise to progradation on the North Sea Fan since huge accommodation ... Master Thesis Norskehav* Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Nordsjøen ENVELOPE(11.435,11.435,64.710,64.710) Norway |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
topic |
geofysikk petroleum geologi Nordsjøen Kvartær Norskehavet Norskerenna Nordsjøvifta sekvensstratigrafi VDP::450 |
spellingShingle |
geofysikk petroleum geologi Nordsjøen Kvartær Norskehavet Norskerenna Nordsjøvifta sekvensstratigrafi VDP::450 Malla, Smita Late Cenozoic Evolution of the northern North Sea and the North Sea Fan |
topic_facet |
geofysikk petroleum geologi Nordsjøen Kvartær Norskehavet Norskerenna Nordsjøvifta sekvensstratigrafi VDP::450 |
description |
Abstract The study was mainly focused on the development of the Late Cenozoic shelf outbuilding in the northern North Sea and offshore mid-Norway. Principles of seismic sequence stratigraphy were applied as a tool to understand the processes related to glacial dynamics in a marine setting and to analyze formation of the North Sea Fan and its relationship to the Norwegian Channel. In terms of seismic stratigraphical architecture, three distinct depositional regimes have been observed during the development of the Late Cenozoic shelf succession of the study area. These have been presented and discussed in megasequence context, which displays how glacial dynamics change basin geometry with respect to space and time. The prograding wedge megasequence I developed mainly due to grounded ice sheets during glacial maxima. The glacial derived sediments were sourced mainly from the uplifted southeastern mainland Norway due to tectonic activities just prior to the onset of extensive glaciation and continued uplift and erosion during glaciations. The huge sediment flux into the basin had consequences in changing the basin configuration; creating large accommodation space in the basin due to isostatic subsidence and shallowing basin margin due to infilling of the basin. This gave a unique situation for the further wedge growth. Continued climate deteriorating, the next extensive shelf edge glaciation started around 1.1 Ma which is very significant in terms of changing the basin geometry from progradation to aggradation. In the mean time Norwegian Channel was formed where ice stream flowed repetitively since 0.5 Ma. During those periods, a series of floating and grounding ice sheets were responsible for giving rise to the aggrading sequences as megasequence II. The second prograding wedge, megasequence NSF (North Sea Fan) developed as the result of fast flowing ice stream in the Norwegian Channel. The continued aggradation in the channel subsequently gave rise to progradation on the North Sea Fan since huge accommodation ... |
author2 |
Johan Peter Nystuen and Jan Inge Faleide |
format |
Master Thesis |
author |
Malla, Smita |
author_facet |
Malla, Smita |
author_sort |
Malla, Smita |
title |
Late Cenozoic Evolution of the northern North Sea and the North Sea Fan |
title_short |
Late Cenozoic Evolution of the northern North Sea and the North Sea Fan |
title_full |
Late Cenozoic Evolution of the northern North Sea and the North Sea Fan |
title_fullStr |
Late Cenozoic Evolution of the northern North Sea and the North Sea Fan |
title_full_unstemmed |
Late Cenozoic Evolution of the northern North Sea and the North Sea Fan |
title_sort |
late cenozoic evolution of the northern north sea and the north sea fan |
publishDate |
2007 |
url |
http://hdl.handle.net/10852/12447 http://urn.nb.no/URN:NBN:no-18675 |
long_lat |
ENVELOPE(11.435,11.435,64.710,64.710) |
geographic |
Nordsjøen Norway |
geographic_facet |
Nordsjøen Norway |
genre |
Norskehav* |
genre_facet |
Norskehav* |
op_relation |
http://urn.nb.no/URN:NBN:no-18675 Malla, Smita. Late Cenozoic Evolution of the northern North Sea and the North Sea Fan. Masteroppgave, University of Oslo, 2007 http://hdl.handle.net/10852/12447 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.au=Malla, Smita&rft.title=Late Cenozoic Evolution of the northern North Sea and the North Sea Fan&rft.inst=University of Oslo&rft.date=2007&rft.degree=Masteroppgave URN:NBN:no-18675 66110 070977275 |
_version_ |
1812178995635027968 |