Supplementary files for: New insights from field observations of the Younger giant dyke complex and mafic lamprophyres of the Gardar Province on Tuttutooq island, South Greenland
The Gardar Province of south Greenland is defined by the products of alkaline igneous magmatism during the Mesoproterozoic. The most laterally extensive Gardar intrusions are a series of giant dyke complexes best exposed on the Tuttutooq archipelago. We present new field observations and a geologica...
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ftdatacite:10.22008/fk2/nax2it 2023-05-15T16:27:26+02:00 Supplementary files for: New insights from field observations of the Younger giant dyke complex and mafic lamprophyres of the Gardar Province on Tuttutooq island, South Greenland Koopmans, Lot 2021 https://dx.doi.org/10.22008/fk2/nax2it https://dataverse01.geus.dk/citation?persistentId=doi:10.22008/FK2/NAX2IT unknown GEUS Dataverse https://dx.doi.org/10.22008/fk2/nax2it/swhjxf https://dx.doi.org/10.22008/fk2/nax2it/apuwk6 dataset Dataset 2021 ftdatacite https://doi.org/10.22008/fk2/nax2it https://doi.org/10.22008/fk2/nax2it/swhjxf https://doi.org/10.22008/fk2/nax2it/apuwk6 2022-02-08T17:13:12Z The Gardar Province of south Greenland is defined by the products of alkaline igneous magmatism during the Mesoproterozoic. The most laterally extensive Gardar intrusions are a series of giant dyke complexes best exposed on the Tuttutooq archipelago. We present new field observations and a geological map of north-east Tuttutooq island that provide fresh insights into the temporal evolution of the Younger giant dyke complex and two associated ultramafic lamprophyres. Our data demonstrate that distinctive crystallisation regimes occurred in different sectors of the dyke complex, leading to the formation of marginal gabbros and ovoid pod-like domains displaying lamination, modal layering and/or more evolved differentiates. We infer that at least two pulses of magma contributed to the formation of the Younger giant dyke complex. In addition, the relative ages of two ultramafic lamprophyre diatremes are constrained and attributed to two distinct phases of rifting in the Gardar Province. Dataset Greenland DataCite Metadata Store (German National Library of Science and Technology) Greenland Tuttutooq ENVELOPE(-46.443,-46.443,60.853,60.853) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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description |
The Gardar Province of south Greenland is defined by the products of alkaline igneous magmatism during the Mesoproterozoic. The most laterally extensive Gardar intrusions are a series of giant dyke complexes best exposed on the Tuttutooq archipelago. We present new field observations and a geological map of north-east Tuttutooq island that provide fresh insights into the temporal evolution of the Younger giant dyke complex and two associated ultramafic lamprophyres. Our data demonstrate that distinctive crystallisation regimes occurred in different sectors of the dyke complex, leading to the formation of marginal gabbros and ovoid pod-like domains displaying lamination, modal layering and/or more evolved differentiates. We infer that at least two pulses of magma contributed to the formation of the Younger giant dyke complex. In addition, the relative ages of two ultramafic lamprophyre diatremes are constrained and attributed to two distinct phases of rifting in the Gardar Province. |
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Dataset |
author |
Koopmans, Lot |
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Koopmans, Lot Supplementary files for: New insights from field observations of the Younger giant dyke complex and mafic lamprophyres of the Gardar Province on Tuttutooq island, South Greenland |
author_facet |
Koopmans, Lot |
author_sort |
Koopmans, Lot |
title |
Supplementary files for: New insights from field observations of the Younger giant dyke complex and mafic lamprophyres of the Gardar Province on Tuttutooq island, South Greenland |
title_short |
Supplementary files for: New insights from field observations of the Younger giant dyke complex and mafic lamprophyres of the Gardar Province on Tuttutooq island, South Greenland |
title_full |
Supplementary files for: New insights from field observations of the Younger giant dyke complex and mafic lamprophyres of the Gardar Province on Tuttutooq island, South Greenland |
title_fullStr |
Supplementary files for: New insights from field observations of the Younger giant dyke complex and mafic lamprophyres of the Gardar Province on Tuttutooq island, South Greenland |
title_full_unstemmed |
Supplementary files for: New insights from field observations of the Younger giant dyke complex and mafic lamprophyres of the Gardar Province on Tuttutooq island, South Greenland |
title_sort |
supplementary files for: new insights from field observations of the younger giant dyke complex and mafic lamprophyres of the gardar province on tuttutooq island, south greenland |
publisher |
GEUS Dataverse |
publishDate |
2021 |
url |
https://dx.doi.org/10.22008/fk2/nax2it https://dataverse01.geus.dk/citation?persistentId=doi:10.22008/FK2/NAX2IT |
long_lat |
ENVELOPE(-46.443,-46.443,60.853,60.853) |
geographic |
Greenland Tuttutooq |
geographic_facet |
Greenland Tuttutooq |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
https://dx.doi.org/10.22008/fk2/nax2it/swhjxf https://dx.doi.org/10.22008/fk2/nax2it/apuwk6 |
op_doi |
https://doi.org/10.22008/fk2/nax2it https://doi.org/10.22008/fk2/nax2it/swhjxf https://doi.org/10.22008/fk2/nax2it/apuwk6 |
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1766016605906534400 |