Seismic volcanostratigraphy of the NE Greenland continental margin
The Early Eocene continental break-up between the NE Greenland and the mid-Norwegian–SW Barents Sea margins was associated with voluminous magmatism and led to the emplacement of massive volcanic complexes including wedges of seawards-dipping reflections (SDR). We study the distribution of these bre...
Published in: | Geological Society, London, Special Publications |
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Language: | English |
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ftoslouniv:oai:www.duo.uio.no:10852/63182 2023-05-15T15:38:59+02:00 Seismic volcanostratigraphy of the NE Greenland continental margin Geissler, Wolfram H. Gaina, Carmen Hopper, John R. Funck, Thomas Blischke, Anett Árting, Uni Egholm Á Horni, Jim Péron-Pinvidic, Gwenn Abdelmalak, Mohamed Mansour 2018-01-30T10:41:10Z http://hdl.handle.net/10852/63182 http://urn.nb.no/URN:NBN:no-65743 https://doi.org/10.1144/SP447.11 EN eng The Geological Society Publishing House NFR/223272 http://urn.nb.no/URN:NBN:no-65743 Geissler, Wolfram H. Gaina, Carmen Hopper, John R. Funck, Thomas Blischke, Anett Árting, Uni Egholm Á Horni, Jim Péron-Pinvidic, Gwenn Abdelmalak, Mohamed Mansour . Seismic volcanostratigraphy of the NE Greenland continental margin. Geological Society Special Publication. 2017, 447, 149-170 http://hdl.handle.net/10852/63182 1555919 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geological Society Special Publication&rft.volume=447&rft.spage=149&rft.date=2017 Geological Society Special Publication 447 149 170 http://dx.doi.org/10.1144/SP447.11 URN:NBN:no-65743 Fulltext https://www.duo.uio.no/bitstream/handle/10852/63182/2/149.full.pdf Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/ CC-BY 0305-8719 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2018 ftoslouniv https://doi.org/10.1144/SP447.11 2020-06-21T08:51:49Z The Early Eocene continental break-up between the NE Greenland and the mid-Norwegian–SW Barents Sea margins was associated with voluminous magmatism and led to the emplacement of massive volcanic complexes including wedges of seawards-dipping reflections (SDR). We study the distribution of these break-up-related volcanic rocks along the NE Greenland margin by revisiting existing seismic reflection data and comparing our observations to better-studied segments of the conjugate margin. Seismic facies types match between the conjugate margins and show strong lateral variations. Seaward-dipping wedges are mapped offshore East Greenland, the conjugate to the Vøring continental margin. The geophysical signature of the SDRs becomes less visible towards the north, as it does along the conjugate Lofoten–Vesterålen margin. We suggest that the Traill Ø volcanic ridge is a result of plume–ridge interactions formed between approximately 54 and 47 Ma. North of the East Greenland Ridge, strong basement reflections conjugate to the Vestbakken Volcanic Province are interpreted as lava flows or ‘spurious’ SDRs. We discuss our findings in conjunction with results from seismic wide-angle experiments, gravity and magnetic data. We focus on the spatial and temporal relationships of the break-up volcanic rocks, and their structural setting in a late rift and initial oceanic drift stage. Article in Journal/Newspaper Barents Sea East Greenland Greenland Lofoten Traill ø Vesterålen Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Barents Sea Lofoten Greenland Vesterålen ENVELOPE(14.939,14.939,68.754,68.754) Traill Ø ENVELOPE(-23.167,-23.167,72.533,72.533) Vestbakken ENVELOPE(16.250,16.250,74.417,74.417) East Greenland Ridge ENVELOPE(2.557,2.557,75.182,75.182) Geological Society, London, Special Publications 447 1 149 170 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
The Early Eocene continental break-up between the NE Greenland and the mid-Norwegian–SW Barents Sea margins was associated with voluminous magmatism and led to the emplacement of massive volcanic complexes including wedges of seawards-dipping reflections (SDR). We study the distribution of these break-up-related volcanic rocks along the NE Greenland margin by revisiting existing seismic reflection data and comparing our observations to better-studied segments of the conjugate margin. Seismic facies types match between the conjugate margins and show strong lateral variations. Seaward-dipping wedges are mapped offshore East Greenland, the conjugate to the Vøring continental margin. The geophysical signature of the SDRs becomes less visible towards the north, as it does along the conjugate Lofoten–Vesterålen margin. We suggest that the Traill Ø volcanic ridge is a result of plume–ridge interactions formed between approximately 54 and 47 Ma. North of the East Greenland Ridge, strong basement reflections conjugate to the Vestbakken Volcanic Province are interpreted as lava flows or ‘spurious’ SDRs. We discuss our findings in conjunction with results from seismic wide-angle experiments, gravity and magnetic data. We focus on the spatial and temporal relationships of the break-up volcanic rocks, and their structural setting in a late rift and initial oceanic drift stage. |
format |
Article in Journal/Newspaper |
author |
Geissler, Wolfram H. Gaina, Carmen Hopper, John R. Funck, Thomas Blischke, Anett Árting, Uni Egholm Á Horni, Jim Péron-Pinvidic, Gwenn Abdelmalak, Mohamed Mansour |
spellingShingle |
Geissler, Wolfram H. Gaina, Carmen Hopper, John R. Funck, Thomas Blischke, Anett Árting, Uni Egholm Á Horni, Jim Péron-Pinvidic, Gwenn Abdelmalak, Mohamed Mansour Seismic volcanostratigraphy of the NE Greenland continental margin |
author_facet |
Geissler, Wolfram H. Gaina, Carmen Hopper, John R. Funck, Thomas Blischke, Anett Árting, Uni Egholm Á Horni, Jim Péron-Pinvidic, Gwenn Abdelmalak, Mohamed Mansour |
author_sort |
Geissler, Wolfram H. |
title |
Seismic volcanostratigraphy of the NE Greenland continental margin |
title_short |
Seismic volcanostratigraphy of the NE Greenland continental margin |
title_full |
Seismic volcanostratigraphy of the NE Greenland continental margin |
title_fullStr |
Seismic volcanostratigraphy of the NE Greenland continental margin |
title_full_unstemmed |
Seismic volcanostratigraphy of the NE Greenland continental margin |
title_sort |
seismic volcanostratigraphy of the ne greenland continental margin |
publisher |
The Geological Society Publishing House |
publishDate |
2018 |
url |
http://hdl.handle.net/10852/63182 http://urn.nb.no/URN:NBN:no-65743 https://doi.org/10.1144/SP447.11 |
long_lat |
ENVELOPE(14.939,14.939,68.754,68.754) ENVELOPE(-23.167,-23.167,72.533,72.533) ENVELOPE(16.250,16.250,74.417,74.417) ENVELOPE(2.557,2.557,75.182,75.182) |
geographic |
Barents Sea Lofoten Greenland Vesterålen Traill Ø Vestbakken East Greenland Ridge |
geographic_facet |
Barents Sea Lofoten Greenland Vesterålen Traill Ø Vestbakken East Greenland Ridge |
genre |
Barents Sea East Greenland Greenland Lofoten Traill ø Vesterålen |
genre_facet |
Barents Sea East Greenland Greenland Lofoten Traill ø Vesterålen |
op_source |
0305-8719 |
op_relation |
NFR/223272 http://urn.nb.no/URN:NBN:no-65743 Geissler, Wolfram H. Gaina, Carmen Hopper, John R. Funck, Thomas Blischke, Anett Árting, Uni Egholm Á Horni, Jim Péron-Pinvidic, Gwenn Abdelmalak, Mohamed Mansour . Seismic volcanostratigraphy of the NE Greenland continental margin. Geological Society Special Publication. 2017, 447, 149-170 http://hdl.handle.net/10852/63182 1555919 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geological Society Special Publication&rft.volume=447&rft.spage=149&rft.date=2017 Geological Society Special Publication 447 149 170 http://dx.doi.org/10.1144/SP447.11 URN:NBN:no-65743 Fulltext https://www.duo.uio.no/bitstream/handle/10852/63182/2/149.full.pdf |
op_rights |
Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1144/SP447.11 |
container_title |
Geological Society, London, Special Publications |
container_volume |
447 |
container_issue |
1 |
container_start_page |
149 |
op_container_end_page |
170 |
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1766370429433282560 |