Late Cenozoic paleoenvironments in the Veslemøy High area, SW Barents Sea based on 3D- and 2D- seismic data
The aim of this master thesis has been to interpret the Late Cenozoic paleo-environments and the sedimentary processes in the Veslemøy High area, southwestern Barents Sea. Six seismic units and eight seismic unconformities, including the seafloor, are identified in the study area and correlated with...
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Universitetet i Tromsø
2009
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Online Access: | https://hdl.handle.net/10037/1911 |
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ftunivtroemsoe:oai:munin.uit.no:10037/1911 2024-06-02T08:04:08+00:00 Late Cenozoic paleoenvironments in the Veslemøy High area, SW Barents Sea based on 3D- and 2D- seismic data Sanchez Borque, Jorge 2009-05 11383516 bytes application/pdf https://hdl.handle.net/10037/1911 eng eng Universitetet i Tromsø University of Tromsø https://hdl.handle.net/10037/1911 URN:NBN:no-uit_munin_1669 openAccess Copyright 2009 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 GEO-3900 Master thesis Mastergradsoppgave 2009 ftunivtroemsoe 2024-05-07T08:41:49Z The aim of this master thesis has been to interpret the Late Cenozoic paleo-environments and the sedimentary processes in the Veslemøy High area, southwestern Barents Sea. Six seismic units and eight seismic unconformities, including the seafloor, are identified in the study area and correlated with previous work in the Sørvestnaget Basin. Submarine channels with a downslope (E-W) orientation suggest a glacimarine environment, i.e. the channels are inferred to have been formed by turbidity currents originating from glacial meltwater on the deepest reflector. On shallower reflectors, megascale glacial lineations, ridges and parts of hill-hole pairs indicate that grounded ice reached the paleo-shelf edge at least six times in the last 1.5 Ma. Moreover, two of the shallower seismic units show indications of sediment blocks that are inferred to have been subglacially eroded, transported and deposited by ice streams. The influence of the ice stream flowing from the Bjørnøyrenna in the last 330 ka is evident in the Veslemøy High; however, the origin of the ice streams is unclear on older paleo-surfaces. Master Thesis Barents Sea University of Tromsø: Munin Open Research Archive Barents Sea |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 GEO-3900 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 GEO-3900 Sanchez Borque, Jorge Late Cenozoic paleoenvironments in the Veslemøy High area, SW Barents Sea based on 3D- and 2D- seismic data |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 GEO-3900 |
description |
The aim of this master thesis has been to interpret the Late Cenozoic paleo-environments and the sedimentary processes in the Veslemøy High area, southwestern Barents Sea. Six seismic units and eight seismic unconformities, including the seafloor, are identified in the study area and correlated with previous work in the Sørvestnaget Basin. Submarine channels with a downslope (E-W) orientation suggest a glacimarine environment, i.e. the channels are inferred to have been formed by turbidity currents originating from glacial meltwater on the deepest reflector. On shallower reflectors, megascale glacial lineations, ridges and parts of hill-hole pairs indicate that grounded ice reached the paleo-shelf edge at least six times in the last 1.5 Ma. Moreover, two of the shallower seismic units show indications of sediment blocks that are inferred to have been subglacially eroded, transported and deposited by ice streams. The influence of the ice stream flowing from the Bjørnøyrenna in the last 330 ka is evident in the Veslemøy High; however, the origin of the ice streams is unclear on older paleo-surfaces. |
format |
Master Thesis |
author |
Sanchez Borque, Jorge |
author_facet |
Sanchez Borque, Jorge |
author_sort |
Sanchez Borque, Jorge |
title |
Late Cenozoic paleoenvironments in the Veslemøy High area, SW Barents Sea based on 3D- and 2D- seismic data |
title_short |
Late Cenozoic paleoenvironments in the Veslemøy High area, SW Barents Sea based on 3D- and 2D- seismic data |
title_full |
Late Cenozoic paleoenvironments in the Veslemøy High area, SW Barents Sea based on 3D- and 2D- seismic data |
title_fullStr |
Late Cenozoic paleoenvironments in the Veslemøy High area, SW Barents Sea based on 3D- and 2D- seismic data |
title_full_unstemmed |
Late Cenozoic paleoenvironments in the Veslemøy High area, SW Barents Sea based on 3D- and 2D- seismic data |
title_sort |
late cenozoic paleoenvironments in the veslemøy high area, sw barents sea based on 3d- and 2d- seismic data |
publisher |
Universitetet i Tromsø |
publishDate |
2009 |
url |
https://hdl.handle.net/10037/1911 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_relation |
https://hdl.handle.net/10037/1911 URN:NBN:no-uit_munin_1669 |
op_rights |
openAccess Copyright 2009 The Author(s) |
_version_ |
1800748767193858048 |