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 br...
Published in: | Geological Society, London, Special Publications |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Geological Society of London
2017
|
Subjects: | |
Online Access: | https://eprints.qut.edu.au/231557/ |
id |
ftqueensland:oai:eprints.qut.edu.au:231557 |
---|---|
record_format |
openpolar |
spelling |
ftqueensland:oai:eprints.qut.edu.au:231557 2024-04-28T08:14:18+00:00 Seismic volcanostratigraphy of the NE Greenland continental margin Geissler, Wolfram H. Gaina, Carmen Hopper, John R. Funck, Thomas Blischke, Anett Arting, Uni Horni, Jim A. Péron-Pinvidic, Gwenn Abdelmalak, Mansour M. 2017 application/pdf https://eprints.qut.edu.au/231557/ unknown Geological Society of London https://eprints.qut.edu.au/231557/1/149.full.pdf doi:10.1144/SP447.11 Geissler, Wolfram H., Gaina, Carmen, Hopper, John R., Funck, Thomas, Blischke, Anett, Arting, Uni, Horni, Jim A., Péron-Pinvidic, Gwenn, & Abdelmalak, Mansour M. (2017) Seismic volcanostratigraphy of the NE Greenland continental margin. Geological Society Special Publication, 447(1), pp. 149-170. https://eprints.qut.edu.au/231557/ free_to_read http://creativecommons.org/licenses/by/4.0/ 2017 The Author(s). This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au Geological Society Special Publication Contribution to Journal 2017 ftqueensland https://doi.org/10.1144/SP447.11 2024-04-03T15:45:52Z 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 betterstudied 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-Vestera°len 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 Queensland University of Technology: QUT ePrints Geological Society, London, Special Publications 447 1 149 170 |
institution |
Open Polar |
collection |
Queensland University of Technology: QUT ePrints |
op_collection_id |
ftqueensland |
language |
unknown |
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 betterstudied 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-Vestera°len 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 Arting, Uni Horni, Jim A. Péron-Pinvidic, Gwenn Abdelmalak, Mansour M. |
spellingShingle |
Geissler, Wolfram H. Gaina, Carmen Hopper, John R. Funck, Thomas Blischke, Anett Arting, Uni Horni, Jim A. Péron-Pinvidic, Gwenn Abdelmalak, Mansour M. Seismic volcanostratigraphy of the NE Greenland continental margin |
author_facet |
Geissler, Wolfram H. Gaina, Carmen Hopper, John R. Funck, Thomas Blischke, Anett Arting, Uni Horni, Jim A. Péron-Pinvidic, Gwenn 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 |
Geological Society of London |
publishDate |
2017 |
url |
https://eprints.qut.edu.au/231557/ |
genre |
Barents Sea East Greenland Greenland Lofoten Traill ø |
genre_facet |
Barents Sea East Greenland Greenland Lofoten Traill ø |
op_source |
Geological Society Special Publication |
op_relation |
https://eprints.qut.edu.au/231557/1/149.full.pdf doi:10.1144/SP447.11 Geissler, Wolfram H., Gaina, Carmen, Hopper, John R., Funck, Thomas, Blischke, Anett, Arting, Uni, Horni, Jim A., Péron-Pinvidic, Gwenn, & Abdelmalak, Mansour M. (2017) Seismic volcanostratigraphy of the NE Greenland continental margin. Geological Society Special Publication, 447(1), pp. 149-170. https://eprints.qut.edu.au/231557/ |
op_rights |
free_to_read http://creativecommons.org/licenses/by/4.0/ 2017 The Author(s). This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au |
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 |
_version_ |
1797580431883763712 |