Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution
Volcanostratigraphic and igneous province mapping of the Jan Mayen microcontinent (JMMC) and Iceland Plateau Rift (IPR) region have provided new insight into the development of rift systems during breakup processes. The microcontinent's formation involved two breakup events associated with seve...
Published in: | Geochemistry, Geophysics, Geosystems |
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2022
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Online Access: | http://hdl.handle.net/10852/100239 https://doi.org/10.1029/2021GC009948 |
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ftoslouniv:oai:www.duo.uio.no:10852/100239 2023-05-15T16:03:42+02:00 Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution ENEngelskEnglishSeismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution Blischke, Anett Brandsdóttir, Bryndís Stoker, Martyn S. Gaina, Carmen Erlendsson, Ögmundur Tegner, Christian Maughan Halldórsson, Sæmundur A. Helgadóttir, Helga M. Gautason, Bjarni Planke, Sverre Koppers, Anthony A. P. Hopper, John R. 2022-06-09T16:21:50Z http://hdl.handle.net/10852/100239 https://doi.org/10.1029/2021GC009948 EN eng The Geochemical Society Blischke, Anett Brandsdóttir, Bryndís Stoker, Martyn S. Gaina, Carmen Erlendsson, Ögmundur Tegner, Christian Maughan Halldórsson, Sæmundur A. Helgadóttir, Helga M. Gautason, Bjarni Planke, Sverre Koppers, Anthony A. P. Hopper, John R. . Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution. Geochemistry Geophysics Geosystems. 2022, 23(4) http://hdl.handle.net/10852/100239 2030568 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geochemistry Geophysics Geosystems&rft.volume=23&rft.spage=&rft.date=2022 Geochemistry Geophysics Geosystems 23 4 45 https://doi.org/10.1029/2021GC009948 Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 1525-2027 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2022 ftoslouniv https://doi.org/10.1029/2021GC009948 2023-02-22T23:36:46Z Volcanostratigraphic and igneous province mapping of the Jan Mayen microcontinent (JMMC) and Iceland Plateau Rift (IPR) region have provided new insight into the development of rift systems during breakup processes. The microcontinent's formation involved two breakup events associated with seven distinct tectono-magmatic phases (∼63–21 Ma), resulting in a fan-shaped JMMC-IPR igneous domain. Primary structural trends and anomalous magmatic activity guided initial opening (∼63–56 Ma) along a SE-NW trend from the European margin and along a WNW-ESE trend from East Greenland. The eastern margin of the microcontinent formed during the first breakup (∼55–53 Ma), with voluminous subaerial volcanism and emplacement of multiple sets of SSW–NNE-aligned seaward-dipping reflector sequences. The more gradual, second breakup (∼52–23 Ma) consisted of four northwestward migrating IPR (I–IV) rift zones along the microcontinent's southern and western margins. IPR I and II (∼52–36 Ma) migrated obliquely into East Greenland, interlinked via segments of the Iceland-Faroe Fracture Zone, in overlapping sub-aerial and sub-surface igneous formations. IPR III and IV (∼35–23 Ma) formed a wide igneous domain south and west of the microcontinent, accompanied by uplift, regional tilting, and erosion as the area moved closer to the Iceland hotspot. The proto-Kolbeinsey Ridge formed at ∼22–21 Ma and connected to the Reykjanes Ridge via the Northwest Iceland Rift Zone, near the center of the hotspot. Eastward rift transfers, toward the proto-Iceland hotspot, commenced at ∼15 Ma, marking the initiation of segmented rift zones comparable to present-day Iceland. Article in Journal/Newspaper East Greenland Greenland Iceland Jan Mayen Kolbeinsey Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Greenland Iceland Plateau ENVELOPE(-12.000,-12.000,69.500,69.500) Jan Mayen Kolbeinsey ENVELOPE(-18.687,-18.687,67.149,67.149) Kolbeinsey Ridge ENVELOPE(-16.917,-16.917,68.833,68.833) Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) Tilting ENVELOPE(-54.065,-54.065,49.700,49.700) Geochemistry, Geophysics, Geosystems 23 4 |
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Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
Volcanostratigraphic and igneous province mapping of the Jan Mayen microcontinent (JMMC) and Iceland Plateau Rift (IPR) region have provided new insight into the development of rift systems during breakup processes. The microcontinent's formation involved two breakup events associated with seven distinct tectono-magmatic phases (∼63–21 Ma), resulting in a fan-shaped JMMC-IPR igneous domain. Primary structural trends and anomalous magmatic activity guided initial opening (∼63–56 Ma) along a SE-NW trend from the European margin and along a WNW-ESE trend from East Greenland. The eastern margin of the microcontinent formed during the first breakup (∼55–53 Ma), with voluminous subaerial volcanism and emplacement of multiple sets of SSW–NNE-aligned seaward-dipping reflector sequences. The more gradual, second breakup (∼52–23 Ma) consisted of four northwestward migrating IPR (I–IV) rift zones along the microcontinent's southern and western margins. IPR I and II (∼52–36 Ma) migrated obliquely into East Greenland, interlinked via segments of the Iceland-Faroe Fracture Zone, in overlapping sub-aerial and sub-surface igneous formations. IPR III and IV (∼35–23 Ma) formed a wide igneous domain south and west of the microcontinent, accompanied by uplift, regional tilting, and erosion as the area moved closer to the Iceland hotspot. The proto-Kolbeinsey Ridge formed at ∼22–21 Ma and connected to the Reykjanes Ridge via the Northwest Iceland Rift Zone, near the center of the hotspot. Eastward rift transfers, toward the proto-Iceland hotspot, commenced at ∼15 Ma, marking the initiation of segmented rift zones comparable to present-day Iceland. |
format |
Article in Journal/Newspaper |
author |
Blischke, Anett Brandsdóttir, Bryndís Stoker, Martyn S. Gaina, Carmen Erlendsson, Ögmundur Tegner, Christian Maughan Halldórsson, Sæmundur A. Helgadóttir, Helga M. Gautason, Bjarni Planke, Sverre Koppers, Anthony A. P. Hopper, John R. |
spellingShingle |
Blischke, Anett Brandsdóttir, Bryndís Stoker, Martyn S. Gaina, Carmen Erlendsson, Ögmundur Tegner, Christian Maughan Halldórsson, Sæmundur A. Helgadóttir, Helga M. Gautason, Bjarni Planke, Sverre Koppers, Anthony A. P. Hopper, John R. Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution |
author_facet |
Blischke, Anett Brandsdóttir, Bryndís Stoker, Martyn S. Gaina, Carmen Erlendsson, Ögmundur Tegner, Christian Maughan Halldórsson, Sæmundur A. Helgadóttir, Helga M. Gautason, Bjarni Planke, Sverre Koppers, Anthony A. P. Hopper, John R. |
author_sort |
Blischke, Anett |
title |
Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution |
title_short |
Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution |
title_full |
Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution |
title_fullStr |
Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution |
title_full_unstemmed |
Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution |
title_sort |
seismic volcanostratigraphy: the key to resolving the jan mayen microcontinent and iceland plateau rift evolution |
publisher |
The Geochemical Society |
publishDate |
2022 |
url |
http://hdl.handle.net/10852/100239 https://doi.org/10.1029/2021GC009948 |
long_lat |
ENVELOPE(-12.000,-12.000,69.500,69.500) ENVELOPE(-18.687,-18.687,67.149,67.149) ENVELOPE(-16.917,-16.917,68.833,68.833) ENVELOPE(-22.250,-22.250,65.467,65.467) ENVELOPE(-54.065,-54.065,49.700,49.700) |
geographic |
Greenland Iceland Plateau Jan Mayen Kolbeinsey Kolbeinsey Ridge Reykjanes Tilting |
geographic_facet |
Greenland Iceland Plateau Jan Mayen Kolbeinsey Kolbeinsey Ridge Reykjanes Tilting |
genre |
East Greenland Greenland Iceland Jan Mayen Kolbeinsey |
genre_facet |
East Greenland Greenland Iceland Jan Mayen Kolbeinsey |
op_source |
1525-2027 |
op_relation |
Blischke, Anett Brandsdóttir, Bryndís Stoker, Martyn S. Gaina, Carmen Erlendsson, Ögmundur Tegner, Christian Maughan Halldórsson, Sæmundur A. Helgadóttir, Helga M. Gautason, Bjarni Planke, Sverre Koppers, Anthony A. P. Hopper, John R. . Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution. Geochemistry Geophysics Geosystems. 2022, 23(4) http://hdl.handle.net/10852/100239 2030568 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geochemistry Geophysics Geosystems&rft.volume=23&rft.spage=&rft.date=2022 Geochemistry Geophysics Geosystems 23 4 45 https://doi.org/10.1029/2021GC009948 |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2021GC009948 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
23 |
container_issue |
4 |
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1766399394085601280 |