The onset of the North Atlantic Igneous Province in a rifting perspective
Abstract The processes that led to the onset and evolution of the North Atlantic Igneous Province (NAIP) have been a theme of debate in the past decades. A popular theory has been that the impingement on the lower lithosphere of a hot mantle plume (the ‘Ancestral Iceland’ plume) initiated the first...
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Cambridge University Press (CUP)
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Online Access: | http://dx.doi.org/10.1017/s0016756809006347 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756809006347 |
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crcambridgeupr:10.1017/s0016756809006347 2024-04-28T08:21:24+00:00 The onset of the North Atlantic Igneous Province in a rifting perspective HANSEN, J. JERRAM, D. A. McCAFFREY, K. PASSEY, S. R. 2009 http://dx.doi.org/10.1017/s0016756809006347 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756809006347 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Geological Magazine volume 146, issue 3, page 309-325 ISSN 0016-7568 1469-5081 Geology journal-article 2009 crcambridgeupr https://doi.org/10.1017/s0016756809006347 2024-04-02T06:53:43Z Abstract The processes that led to the onset and evolution of the North Atlantic Igneous Province (NAIP) have been a theme of debate in the past decades. A popular theory has been that the impingement on the lower lithosphere of a hot mantle plume (the ‘Ancestral Iceland’ plume) initiated the first voluminous outbursts of lava and initiated rifting in the North Atlantic area in Early Palaeogene times. Here we review previous studies in order to set the NAIP magmatism in a time–space context. We suggest that global plate reorganizations and lithospheric extension across old orogenic fronts and/or suture zones, aided by other processes in the mantle (e.g. local or regional scale upwellings prior to and during the final Early Eocene rifting), played a role in the generation of the igneous products recorded in the NAIP for this period. These events gave rise to the extensive Paleocene and Eocene igneous rocks in W Greenland, NW Britain and at the conjugate E Greenland–NW European margins. Many of the relatively large magmatic centres of the NAIP were associated with transient and geographically confined doming in Early Paleocene times prior to the final break-up of the North Atlantic area. Article in Journal/Newspaper Greenland Iceland North Atlantic Cambridge University Press Geological Magazine 146 3 309 325 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology |
spellingShingle |
Geology HANSEN, J. JERRAM, D. A. McCAFFREY, K. PASSEY, S. R. The onset of the North Atlantic Igneous Province in a rifting perspective |
topic_facet |
Geology |
description |
Abstract The processes that led to the onset and evolution of the North Atlantic Igneous Province (NAIP) have been a theme of debate in the past decades. A popular theory has been that the impingement on the lower lithosphere of a hot mantle plume (the ‘Ancestral Iceland’ plume) initiated the first voluminous outbursts of lava and initiated rifting in the North Atlantic area in Early Palaeogene times. Here we review previous studies in order to set the NAIP magmatism in a time–space context. We suggest that global plate reorganizations and lithospheric extension across old orogenic fronts and/or suture zones, aided by other processes in the mantle (e.g. local or regional scale upwellings prior to and during the final Early Eocene rifting), played a role in the generation of the igneous products recorded in the NAIP for this period. These events gave rise to the extensive Paleocene and Eocene igneous rocks in W Greenland, NW Britain and at the conjugate E Greenland–NW European margins. Many of the relatively large magmatic centres of the NAIP were associated with transient and geographically confined doming in Early Paleocene times prior to the final break-up of the North Atlantic area. |
format |
Article in Journal/Newspaper |
author |
HANSEN, J. JERRAM, D. A. McCAFFREY, K. PASSEY, S. R. |
author_facet |
HANSEN, J. JERRAM, D. A. McCAFFREY, K. PASSEY, S. R. |
author_sort |
HANSEN, J. |
title |
The onset of the North Atlantic Igneous Province in a rifting perspective |
title_short |
The onset of the North Atlantic Igneous Province in a rifting perspective |
title_full |
The onset of the North Atlantic Igneous Province in a rifting perspective |
title_fullStr |
The onset of the North Atlantic Igneous Province in a rifting perspective |
title_full_unstemmed |
The onset of the North Atlantic Igneous Province in a rifting perspective |
title_sort |
onset of the north atlantic igneous province in a rifting perspective |
publisher |
Cambridge University Press (CUP) |
publishDate |
2009 |
url |
http://dx.doi.org/10.1017/s0016756809006347 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756809006347 |
genre |
Greenland Iceland North Atlantic |
genre_facet |
Greenland Iceland North Atlantic |
op_source |
Geological Magazine volume 146, issue 3, page 309-325 ISSN 0016-7568 1469-5081 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0016756809006347 |
container_title |
Geological Magazine |
container_volume |
146 |
container_issue |
3 |
container_start_page |
309 |
op_container_end_page |
325 |
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1797583760634413056 |