Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution
Abstract 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...
Published in: | Geochemistry, Geophysics, Geosystems |
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ftdoajarticles:oai:doaj.org/article:048f90db7135490894ce9d4881a6f343 2023-12-03T10:21:59+01:00 Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution Anett Blischke Bryndís Brandsdóttir Martyn S. Stoker Carmen Gaina Ögmundur Erlendsson Christian Tegner Sæmundur A. Halldórsson Helga M. Helgadóttir Bjarni Gautason Sverre Planke Anthony A. P. Koppers John R. Hopper 2022-04-01T00:00:00Z https://doi.org/10.1029/2021GC009948 https://doaj.org/article/048f90db7135490894ce9d4881a6f343 EN eng Wiley https://doi.org/10.1029/2021GC009948 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2021GC009948 https://doaj.org/article/048f90db7135490894ce9d4881a6f343 Geochemistry, Geophysics, Geosystems, Vol 23, Iss 4, Pp n/a-n/a (2022) Iceland Plateau Rift Jan Mayen microcontinent overlapping rift systems hotspot‐ridge interaction seismic volcanostratigraphy structural inheritance Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 article 2022 ftdoajarticles https://doi.org/10.1029/2021GC009948 2023-11-05T01:35:57Z Abstract 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 Directory of Open Access Journals: DOAJ Articles 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 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Iceland Plateau Rift Jan Mayen microcontinent overlapping rift systems hotspot‐ridge interaction seismic volcanostratigraphy structural inheritance Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
spellingShingle |
Iceland Plateau Rift Jan Mayen microcontinent overlapping rift systems hotspot‐ridge interaction seismic volcanostratigraphy structural inheritance Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 Anett Blischke Bryndís Brandsdóttir Martyn S. Stoker Carmen Gaina Ögmundur Erlendsson Christian Tegner Sæmundur A. Halldórsson Helga M. Helgadóttir Bjarni Gautason Sverre Planke Anthony A. P. Koppers John R. Hopper Seismic Volcanostratigraphy: The Key to Resolving the Jan Mayen Microcontinent and Iceland Plateau Rift Evolution |
topic_facet |
Iceland Plateau Rift Jan Mayen microcontinent overlapping rift systems hotspot‐ridge interaction seismic volcanostratigraphy structural inheritance Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
description |
Abstract 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 |
Anett Blischke Bryndís Brandsdóttir Martyn S. Stoker Carmen Gaina Ögmundur Erlendsson Christian Tegner Sæmundur A. Halldórsson Helga M. Helgadóttir Bjarni Gautason Sverre Planke Anthony A. P. Koppers John R. Hopper |
author_facet |
Anett Blischke Bryndís Brandsdóttir Martyn S. Stoker Carmen Gaina Ögmundur Erlendsson Christian Tegner Sæmundur A. Halldórsson Helga M. Helgadóttir Bjarni Gautason Sverre Planke Anthony A. P. Koppers John R. Hopper |
author_sort |
Anett Blischke |
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 |
Wiley |
publishDate |
2022 |
url |
https://doi.org/10.1029/2021GC009948 https://doaj.org/article/048f90db7135490894ce9d4881a6f343 |
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 |
Geochemistry, Geophysics, Geosystems, Vol 23, Iss 4, Pp n/a-n/a (2022) |
op_relation |
https://doi.org/10.1029/2021GC009948 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2021GC009948 https://doaj.org/article/048f90db7135490894ce9d4881a6f343 |
op_doi |
https://doi.org/10.1029/2021GC009948 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
23 |
container_issue |
4 |
_version_ |
1784269803944411136 |