The paleozoic evolution of the Olga Basin region, Northern Barents Sea: A link to the Timanian orogeny
The evolution of the Olga Basin region in the northern Norwegian Barents Sea and its relation to the Caledonian and Timanian orogenies is poorly understood due to sparse geophysical data and the lack of well control. In 2015, the German Federal Institute for Geosciences and Natural Resources (BGR) a...
Published in: | Geochemistry, Geophysics, Geosystems |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The Geochemical Society
2019
|
Subjects: | |
Online Access: | http://hdl.handle.net/10852/74934 http://urn.nb.no/URN:NBN:no-78050 https://doi.org/10.1029/2018GC007814 |
id |
ftoslouniv:oai:www.duo.uio.no:10852/74934 |
---|---|
record_format |
openpolar |
spelling |
ftoslouniv:oai:www.duo.uio.no:10852/74934 2023-05-15T15:38:22+02:00 The paleozoic evolution of the Olga Basin region, Northern Barents Sea: A link to the Timanian orogeny Klitzke, Peter Franke, Dieter Ehrhardt, Axel Lutz, Rüdiger Reinhardt, Lutz Heyde, Ingo Faleide, Jan Inge 2019-04-09T19:34:42Z http://hdl.handle.net/10852/74934 http://urn.nb.no/URN:NBN:no-78050 https://doi.org/10.1029/2018GC007814 EN eng The Geochemical Society http://urn.nb.no/URN:NBN:no-78050 Klitzke, Peter Franke, Dieter Ehrhardt, Axel Lutz, Rüdiger Reinhardt, Lutz Heyde, Ingo Faleide, Jan Inge . The paleozoic evolution of the Olga Basin region, Northern Barents Sea: A link to the Timanian orogeny. Geochemistry Geophysics Geosystems. 2019, 1-16 http://hdl.handle.net/10852/74934 1691222 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geochemistry Geophysics Geosystems&rft.volume=&rft.spage=1&rft.date=2019 Geochemistry Geophysics Geosystems 20 2 614 629 https://doi.org/10.1029/2018GC007814 URN:NBN:no-78050 Fulltext https://www.duo.uio.no/bitstream/handle/10852/74934/1/Klitzke_et_al-2019-Geochemistry%252C_Geophysics%252C_Geosystems.pdf Attribution-NonCommercial-NoDerivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND 1525-2027 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2019 ftoslouniv https://doi.org/10.1029/2018GC007814 2020-06-21T08:54:13Z The evolution of the Olga Basin region in the northern Norwegian Barents Sea and its relation to the Caledonian and Timanian orogenies is poorly understood due to sparse geophysical data and the lack of well control. In 2015, the German Federal Institute for Geosciences and Natural Resources (BGR) acquired deep multichannel seismic lines as well as gravity and magnetic data. The new seismic data reveal that the Olga and Sørkapp Basins evolved as a W‐E striking half‐graben system along a major normal fault in the north and a smaller normal fault in the south, respectively. Deep crustal undulating high‐amplitude reflections below the Olga and Sørkapp Basins coincide with W‐E striking local magnetic maxima and may imply that the basins evolved on top of old collisional fabrics. The absence of major compressional deformation implies a post‐Caledonian onset of subsidence. The W‐E structural configuration of the sedimentary basins is difficult to reconcile with an earlier proposed NE striking Caledonian branch in the northern Barents Sea. Instead, the orientation of the Olga and Sørkapp Basins lines up with Timanian structural trends from the Pechora Basin. We propose that the Olga and Sørkapp Basins experienced transtensional deformation during the late Devonian/early Carboniferous NE‐SW regional extension phase whereby inherited Timanian lineaments controlled the final W‐E basin configuration. A salient pre‐Caledonian Olga‐Sørkapp crustal block in the central Barents Sea would also explain the recently proposed NNW rotation of Caledonian nappes and thrust sheets in the southwestern Barents Sea. Article in Journal/Newspaper Barents Sea Pechora Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Barents Sea Olga Basin ENVELOPE(29.000,29.000,78.333,78.333) Geochemistry, Geophysics, Geosystems 20 2 614 629 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
The evolution of the Olga Basin region in the northern Norwegian Barents Sea and its relation to the Caledonian and Timanian orogenies is poorly understood due to sparse geophysical data and the lack of well control. In 2015, the German Federal Institute for Geosciences and Natural Resources (BGR) acquired deep multichannel seismic lines as well as gravity and magnetic data. The new seismic data reveal that the Olga and Sørkapp Basins evolved as a W‐E striking half‐graben system along a major normal fault in the north and a smaller normal fault in the south, respectively. Deep crustal undulating high‐amplitude reflections below the Olga and Sørkapp Basins coincide with W‐E striking local magnetic maxima and may imply that the basins evolved on top of old collisional fabrics. The absence of major compressional deformation implies a post‐Caledonian onset of subsidence. The W‐E structural configuration of the sedimentary basins is difficult to reconcile with an earlier proposed NE striking Caledonian branch in the northern Barents Sea. Instead, the orientation of the Olga and Sørkapp Basins lines up with Timanian structural trends from the Pechora Basin. We propose that the Olga and Sørkapp Basins experienced transtensional deformation during the late Devonian/early Carboniferous NE‐SW regional extension phase whereby inherited Timanian lineaments controlled the final W‐E basin configuration. A salient pre‐Caledonian Olga‐Sørkapp crustal block in the central Barents Sea would also explain the recently proposed NNW rotation of Caledonian nappes and thrust sheets in the southwestern Barents Sea. |
format |
Article in Journal/Newspaper |
author |
Klitzke, Peter Franke, Dieter Ehrhardt, Axel Lutz, Rüdiger Reinhardt, Lutz Heyde, Ingo Faleide, Jan Inge |
spellingShingle |
Klitzke, Peter Franke, Dieter Ehrhardt, Axel Lutz, Rüdiger Reinhardt, Lutz Heyde, Ingo Faleide, Jan Inge The paleozoic evolution of the Olga Basin region, Northern Barents Sea: A link to the Timanian orogeny |
author_facet |
Klitzke, Peter Franke, Dieter Ehrhardt, Axel Lutz, Rüdiger Reinhardt, Lutz Heyde, Ingo Faleide, Jan Inge |
author_sort |
Klitzke, Peter |
title |
The paleozoic evolution of the Olga Basin region, Northern Barents Sea: A link to the Timanian orogeny |
title_short |
The paleozoic evolution of the Olga Basin region, Northern Barents Sea: A link to the Timanian orogeny |
title_full |
The paleozoic evolution of the Olga Basin region, Northern Barents Sea: A link to the Timanian orogeny |
title_fullStr |
The paleozoic evolution of the Olga Basin region, Northern Barents Sea: A link to the Timanian orogeny |
title_full_unstemmed |
The paleozoic evolution of the Olga Basin region, Northern Barents Sea: A link to the Timanian orogeny |
title_sort |
paleozoic evolution of the olga basin region, northern barents sea: a link to the timanian orogeny |
publisher |
The Geochemical Society |
publishDate |
2019 |
url |
http://hdl.handle.net/10852/74934 http://urn.nb.no/URN:NBN:no-78050 https://doi.org/10.1029/2018GC007814 |
long_lat |
ENVELOPE(29.000,29.000,78.333,78.333) |
geographic |
Barents Sea Olga Basin |
geographic_facet |
Barents Sea Olga Basin |
genre |
Barents Sea Pechora |
genre_facet |
Barents Sea Pechora |
op_source |
1525-2027 |
op_relation |
http://urn.nb.no/URN:NBN:no-78050 Klitzke, Peter Franke, Dieter Ehrhardt, Axel Lutz, Rüdiger Reinhardt, Lutz Heyde, Ingo Faleide, Jan Inge . The paleozoic evolution of the Olga Basin region, Northern Barents Sea: A link to the Timanian orogeny. Geochemistry Geophysics Geosystems. 2019, 1-16 http://hdl.handle.net/10852/74934 1691222 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geochemistry Geophysics Geosystems&rft.volume=&rft.spage=1&rft.date=2019 Geochemistry Geophysics Geosystems 20 2 614 629 https://doi.org/10.1029/2018GC007814 URN:NBN:no-78050 Fulltext https://www.duo.uio.no/bitstream/handle/10852/74934/1/Klitzke_et_al-2019-Geochemistry%252C_Geophysics%252C_Geosystems.pdf |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1029/2018GC007814 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
20 |
container_issue |
2 |
container_start_page |
614 |
op_container_end_page |
629 |
_version_ |
1766369236027965440 |