Rift magmatism on the Eurasia basin margin: U–Pb baddeleyite ages of alkaline dyke swarms in North Greenland
The opening of the Arctic Ocean involved multiple stages of continental rifting and intrusion of extensive dyke swarms. To trace tectonomagmatic processes of the High Arctic, we present the first U–Pb ages for alkaline dyke swarms of North Greenland. Concordia ages of 80.8 ± 0.6 and 82.1 ± 1.5 Ma in...
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Geological Society of London
2016
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ftdatacite:10.6084/m9.figshare.3454046 2023-05-15T14:51:28+02:00 Rift magmatism on the Eurasia basin margin: U–Pb baddeleyite ages of alkaline dyke swarms in North Greenland Thórarinsson, Sigurjón B. Söderlund, Ulf Døssing, Arne Holm, Paul M. Ernst, Richard E. Tegner, Christian 2016 https://dx.doi.org/10.6084/m9.figshare.3454046 https://geolsoc.figshare.com/articles/journal_contribution/Rift_magmatism_on_the_Eurasia_basin_margin_U_Pb_baddeleyite_ages_of_alkaline_dyke_swarms_in_North_Greenland/3454046 unknown Geological Society of London https://dx.doi.org/10.1144/jgs2015-049 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Geology FOS Earth and related environmental sciences Text article-journal Journal contribution ScholarlyArticle 2016 ftdatacite https://doi.org/10.6084/m9.figshare.3454046 https://doi.org/10.1144/jgs2015-049 2021-11-05T12:55:41Z The opening of the Arctic Ocean involved multiple stages of continental rifting and intrusion of extensive dyke swarms. To trace tectonomagmatic processes of the High Arctic, we present the first U–Pb ages for alkaline dyke swarms of North Greenland. Concordia ages of 80.8 ± 0.6 and 82.1 ± 1.5 Ma indicate that north–south and east–west dykes are coeval. The north–south dykes reflect initial east–west rifting that led to break-up along the Gakkel Ridge and formation of the Eurasia Basin. The east–west dykes reflect local variations in the stress field associated with reactivated Palaeozoic faults. Text Arctic Arctic Ocean Greenland North Greenland DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean Eurasia Basin ENVELOPE(80.000,80.000,87.000,87.000) Gakkel Ridge ENVELOPE(90.000,90.000,87.000,87.000) Greenland |
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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 Thórarinsson, Sigurjón B. Söderlund, Ulf Døssing, Arne Holm, Paul M. Ernst, Richard E. Tegner, Christian Rift magmatism on the Eurasia basin margin: U–Pb baddeleyite ages of alkaline dyke swarms in North Greenland |
topic_facet |
Geology FOS Earth and related environmental sciences |
description |
The opening of the Arctic Ocean involved multiple stages of continental rifting and intrusion of extensive dyke swarms. To trace tectonomagmatic processes of the High Arctic, we present the first U–Pb ages for alkaline dyke swarms of North Greenland. Concordia ages of 80.8 ± 0.6 and 82.1 ± 1.5 Ma indicate that north–south and east–west dykes are coeval. The north–south dykes reflect initial east–west rifting that led to break-up along the Gakkel Ridge and formation of the Eurasia Basin. The east–west dykes reflect local variations in the stress field associated with reactivated Palaeozoic faults. |
format |
Text |
author |
Thórarinsson, Sigurjón B. Söderlund, Ulf Døssing, Arne Holm, Paul M. Ernst, Richard E. Tegner, Christian |
author_facet |
Thórarinsson, Sigurjón B. Söderlund, Ulf Døssing, Arne Holm, Paul M. Ernst, Richard E. Tegner, Christian |
author_sort |
Thórarinsson, Sigurjón B. |
title |
Rift magmatism on the Eurasia basin margin: U–Pb baddeleyite ages of alkaline dyke swarms in North Greenland |
title_short |
Rift magmatism on the Eurasia basin margin: U–Pb baddeleyite ages of alkaline dyke swarms in North Greenland |
title_full |
Rift magmatism on the Eurasia basin margin: U–Pb baddeleyite ages of alkaline dyke swarms in North Greenland |
title_fullStr |
Rift magmatism on the Eurasia basin margin: U–Pb baddeleyite ages of alkaline dyke swarms in North Greenland |
title_full_unstemmed |
Rift magmatism on the Eurasia basin margin: U–Pb baddeleyite ages of alkaline dyke swarms in North Greenland |
title_sort |
rift magmatism on the eurasia basin margin: u–pb baddeleyite ages of alkaline dyke swarms in north greenland |
publisher |
Geological Society of London |
publishDate |
2016 |
url |
https://dx.doi.org/10.6084/m9.figshare.3454046 https://geolsoc.figshare.com/articles/journal_contribution/Rift_magmatism_on_the_Eurasia_basin_margin_U_Pb_baddeleyite_ages_of_alkaline_dyke_swarms_in_North_Greenland/3454046 |
long_lat |
ENVELOPE(80.000,80.000,87.000,87.000) ENVELOPE(90.000,90.000,87.000,87.000) |
geographic |
Arctic Arctic Ocean Eurasia Basin Gakkel Ridge Greenland |
geographic_facet |
Arctic Arctic Ocean Eurasia Basin Gakkel Ridge Greenland |
genre |
Arctic Arctic Ocean Greenland North Greenland |
genre_facet |
Arctic Arctic Ocean Greenland North Greenland |
op_relation |
https://dx.doi.org/10.1144/jgs2015-049 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.3454046 https://doi.org/10.1144/jgs2015-049 |
_version_ |
1766322578308202496 |