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...
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ftdatacite:10.6084/m9.figshare.c.3593780.v1 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 Uni Arting Horni, Jim Á Péron-Pinvidic, Gwen Abdelmalak, Mansour M. 2016 https://dx.doi.org/10.6084/m9.figshare.c.3593780.v1 https://figshare.com/collections/Seismic_volcanostratigraphy_of_the_NE_Greenland_continental_margin/3593780/1 unknown Figshare https://dx.doi.org/10.1144/sp447.11 https://dx.doi.org/10.6084/m9.figshare.c.3593780 CC-BY https://creativecommons.org/licenses/by/4.0 CC-BY Geology FOS Earth and related environmental sciences Collection article 2016 ftdatacite https://doi.org/10.6084/m9.figshare.c.3593780.v1 https://doi.org/10.1144/sp447.11 https://doi.org/10.6084/m9.figshare.c.3593780 2021-11-05T12:55:41Z 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 DataCite Metadata Store (German National Library of Science and Technology) 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) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Geology FOS Earth and related environmental sciences |
spellingShingle |
Geology FOS Earth and related environmental sciences Geissler, Wolfram H. Gaina, Carmen Hopper, John R. Funck, Thomas Blischke, Anett Uni Arting Horni, Jim Á Péron-Pinvidic, Gwen Abdelmalak, Mansour M. Seismic volcanostratigraphy of the NE Greenland continental margin |
topic_facet |
Geology FOS Earth and related environmental sciences |
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 Uni Arting Horni, Jim Á Péron-Pinvidic, Gwen Abdelmalak, Mansour M. |
author_facet |
Geissler, Wolfram H. Gaina, Carmen Hopper, John R. Funck, Thomas Blischke, Anett Uni Arting Horni, Jim Á Péron-Pinvidic, Gwen Abdelmalak, Mansour M. |
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 |
Figshare |
publishDate |
2016 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3593780.v1 https://figshare.com/collections/Seismic_volcanostratigraphy_of_the_NE_Greenland_continental_margin/3593780/1 |
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_relation |
https://dx.doi.org/10.1144/sp447.11 https://dx.doi.org/10.6084/m9.figshare.c.3593780 |
op_rights |
CC-BY https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3593780.v1 https://doi.org/10.1144/sp447.11 https://doi.org/10.6084/m9.figshare.c.3593780 |
_version_ |
1766370437225250816 |