The Jan Mayen microcontinent: An update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridge
We present a revised tectonostratigraphy of the Jan Mayen microcontinent (JMMC) and its southern extent, with the focus on its relationship to the Greenland-Iceland-Faroe Ridge area and the Faroe-Iceland Fracture Zone. The microcontinent's Cenozoic evolution consists of six main phases correspo...
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ftqueensland:oai:eprints.qut.edu.au:231564 2024-02-04T10:00:53+01:00 The Jan Mayen microcontinent: An update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridge Blischke, A. Gaina, C. Hopper, J. R. Péron-Pinvidic, G. Brandsdóttir, B. Guarnieri, P. Erlendsson, O. Gunnarsson, K. 2017 application/pdf https://eprints.qut.edu.au/231564/ unknown Geological Society of London https://eprints.qut.edu.au/231564/1/299.full.pdf doi:10.1144/SP447.5 Blischke, A., Gaina, C., Hopper, J. R., Péron-Pinvidic, G., Brandsdóttir, B., Guarnieri, P., Erlendsson, O., & Gunnarsson, K. (2017) The Jan Mayen microcontinent: An update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridge. Geological Society Special Publication, 447(1), pp. 299-337. https://eprints.qut.edu.au/231564/ free_to_read http://creativecommons.org/licenses/by/4.0/ 2017 The Author(s). This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au Geological Society Special Publication Contribution to Journal 2017 ftqueensland https://doi.org/10.1144/SP447.5 2024-01-09T00:07:47Z We present a revised tectonostratigraphy of the Jan Mayen microcontinent (JMMC) and its southern extent, with the focus on its relationship to the Greenland-Iceland-Faroe Ridge area and the Faroe-Iceland Fracture Zone. The microcontinent's Cenozoic evolution consists of six main phases corresponding to regional stratigraphic unconformities. Emplacement of Early Eocene plateau basalts at pre-break-up time (56-55 Ma), preceded the continental break-up (55 Ma) and the formation of seawards-dipping reflectors (SDRs) along the eastern and SE flanks of the JMMC. Simultaneously with SDR formation, orthogonal seafloor spreading initiated along the Ægir Ridge (Norway Basin) during the Early Eocene (C24n2r, 53.36 Ma to C22n, 49.3 Ma). Changes in plate motions at C21n (47.33 Ma) led to oblique seafloor spreading offset by transform faults and uplift along the microcontinent's southern flank. At C13n (33.2 Ma), spreading rates along the Ægir Ridge started to decrease, first south and then in the north. This was probably complemented by intra-continental extension within the JMMC, as indicated by the opening of the Jan Mayen Basin - a series of small pull-apart basins along the microcontinent's NW flank. JMMC was completely isolated when the mid-oceanic Kolbeinsey Ridge became fully established and the Ægir Ridge was abandoned between C7 and C6b (24-21.56 Ma). Article in Journal/Newspaper Greenland Iceland Jan Mayen Kolbeinsey Queensland University of Technology: QUT ePrints Greenland Norway Jan Mayen Kolbeinsey ENVELOPE(-18.687,-18.687,67.149,67.149) Kolbeinsey Ridge ENVELOPE(-16.917,-16.917,68.833,68.833) Geological Society, London, Special Publications 447 1 299 337 |
institution |
Open Polar |
collection |
Queensland University of Technology: QUT ePrints |
op_collection_id |
ftqueensland |
language |
unknown |
description |
We present a revised tectonostratigraphy of the Jan Mayen microcontinent (JMMC) and its southern extent, with the focus on its relationship to the Greenland-Iceland-Faroe Ridge area and the Faroe-Iceland Fracture Zone. The microcontinent's Cenozoic evolution consists of six main phases corresponding to regional stratigraphic unconformities. Emplacement of Early Eocene plateau basalts at pre-break-up time (56-55 Ma), preceded the continental break-up (55 Ma) and the formation of seawards-dipping reflectors (SDRs) along the eastern and SE flanks of the JMMC. Simultaneously with SDR formation, orthogonal seafloor spreading initiated along the Ægir Ridge (Norway Basin) during the Early Eocene (C24n2r, 53.36 Ma to C22n, 49.3 Ma). Changes in plate motions at C21n (47.33 Ma) led to oblique seafloor spreading offset by transform faults and uplift along the microcontinent's southern flank. At C13n (33.2 Ma), spreading rates along the Ægir Ridge started to decrease, first south and then in the north. This was probably complemented by intra-continental extension within the JMMC, as indicated by the opening of the Jan Mayen Basin - a series of small pull-apart basins along the microcontinent's NW flank. JMMC was completely isolated when the mid-oceanic Kolbeinsey Ridge became fully established and the Ægir Ridge was abandoned between C7 and C6b (24-21.56 Ma). |
format |
Article in Journal/Newspaper |
author |
Blischke, A. Gaina, C. Hopper, J. R. Péron-Pinvidic, G. Brandsdóttir, B. Guarnieri, P. Erlendsson, O. Gunnarsson, K. |
spellingShingle |
Blischke, A. Gaina, C. Hopper, J. R. Péron-Pinvidic, G. Brandsdóttir, B. Guarnieri, P. Erlendsson, O. Gunnarsson, K. The Jan Mayen microcontinent: An update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridge |
author_facet |
Blischke, A. Gaina, C. Hopper, J. R. Péron-Pinvidic, G. Brandsdóttir, B. Guarnieri, P. Erlendsson, O. Gunnarsson, K. |
author_sort |
Blischke, A. |
title |
The Jan Mayen microcontinent: An update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridge |
title_short |
The Jan Mayen microcontinent: An update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridge |
title_full |
The Jan Mayen microcontinent: An update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridge |
title_fullStr |
The Jan Mayen microcontinent: An update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridge |
title_full_unstemmed |
The Jan Mayen microcontinent: An update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridge |
title_sort |
jan mayen microcontinent: an update of its architecture, structural development and role during the transition from the ægir ridge to the mid-oceanic kolbeinsey ridge |
publisher |
Geological Society of London |
publishDate |
2017 |
url |
https://eprints.qut.edu.au/231564/ |
long_lat |
ENVELOPE(-18.687,-18.687,67.149,67.149) ENVELOPE(-16.917,-16.917,68.833,68.833) |
geographic |
Greenland Norway Jan Mayen Kolbeinsey Kolbeinsey Ridge |
geographic_facet |
Greenland Norway Jan Mayen Kolbeinsey Kolbeinsey Ridge |
genre |
Greenland Iceland Jan Mayen Kolbeinsey |
genre_facet |
Greenland Iceland Jan Mayen Kolbeinsey |
op_source |
Geological Society Special Publication |
op_relation |
https://eprints.qut.edu.au/231564/1/299.full.pdf doi:10.1144/SP447.5 Blischke, A., Gaina, C., Hopper, J. R., Péron-Pinvidic, G., Brandsdóttir, B., Guarnieri, P., Erlendsson, O., & Gunnarsson, K. (2017) The Jan Mayen microcontinent: An update of its architecture, structural development and role during the transition from the Ægir Ridge to the mid-oceanic Kolbeinsey Ridge. Geological Society Special Publication, 447(1), pp. 299-337. https://eprints.qut.edu.au/231564/ |
op_rights |
free_to_read http://creativecommons.org/licenses/by/4.0/ 2017 The Author(s). This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au |
op_doi |
https://doi.org/10.1144/SP447.5 |
container_title |
Geological Society, London, Special Publications |
container_volume |
447 |
container_issue |
1 |
container_start_page |
299 |
op_container_end_page |
337 |
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