Paleocene Pacific Plate reorganization mirrored in formation of the Suvarov Trough, Manihiki Plateau
The Suvarov Trough is a graben structure that deviates from the Danger Islands Troughs within the Manihiki Plateau, a Large Igneous Province (LIP) located in the Central Pacific. New high resolution seismic reflection data provide evidence that the graben formed in two phases during the Paleocene (6...
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Online Access: | https://epic.awi.de/id/eprint/41673/ http://onlinelibrary.wiley.com/doi/10.1002/2016JB013355/abstract https://hdl.handle.net/10013/epic.48926 |
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ftawi:oai:epic.awi.de:41673 2023-05-15T15:59:56+02:00 Paleocene Pacific Plate reorganization mirrored in formation of the Suvarov Trough, Manihiki Plateau Pietsch, Ricarda Uenzelmann-Neben, Gabriele 2016-09-04 https://epic.awi.de/id/eprint/41673/ http://onlinelibrary.wiley.com/doi/10.1002/2016JB013355/abstract https://hdl.handle.net/10013/epic.48926 unknown Wiley Pietsch, R. orcid:0000-0002-1232-2950 and Uenzelmann-Neben, G. orcid:0000-0002-0115-5923 (2016) Paleocene Pacific Plate reorganization mirrored in formation of the Suvarov Trough, Manihiki Plateau , Journal of Geophysical Research-Solid Earth, 121 (10), pp. 7013-7023 . doi:10.1002/2016JB013355 <https://doi.org/10.1002/2016JB013355> , hdl:10013/epic.48926 EPIC3Journal of Geophysical Research-Solid Earth, Wiley, 121(10), pp. 7013-7023, ISSN: 0148-0227 Article isiRev 2016 ftawi https://doi.org/10.1002/2016JB013355 2021-12-24T15:41:51Z The Suvarov Trough is a graben structure that deviates from the Danger Islands Troughs within the Manihiki Plateau, a Large Igneous Province (LIP) located in the Central Pacific. New high resolution seismic reflection data provide evidence that the graben formed in two phases during the Paleocene (65-45 Ma). In a first phase extension occurred in south-westward direction, pulling apart the northern part of the Suvarov Trough and a parallel trending, unnamed trough. In a second phase a change of extensional force direction occurred from southwest to west-northwest, forming the southern part of the Suvarov Trough that extends onto the High Plateau. The formation of the Suvarov Trough is accompanied by a series of normal fault systems that apparently formed simultaneously. Comparing the seismic results to existing Pacific paleo strain reconstructions, the timing of increased strain and local deformation direction fits well to our findings. We thus suggest that the multiple strike directions of the Suvarov Trough represent an extensional structure that was caused by the major, stepwise Pacific Plate reorganization during the Paleocene. Article in Journal/Newspaper Danger Islands Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Danger Islands ENVELOPE(-54.683,-54.683,-63.433,-63.433) Pacific Journal of Geophysical Research: Solid Earth 121 10 7013 7023 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
The Suvarov Trough is a graben structure that deviates from the Danger Islands Troughs within the Manihiki Plateau, a Large Igneous Province (LIP) located in the Central Pacific. New high resolution seismic reflection data provide evidence that the graben formed in two phases during the Paleocene (65-45 Ma). In a first phase extension occurred in south-westward direction, pulling apart the northern part of the Suvarov Trough and a parallel trending, unnamed trough. In a second phase a change of extensional force direction occurred from southwest to west-northwest, forming the southern part of the Suvarov Trough that extends onto the High Plateau. The formation of the Suvarov Trough is accompanied by a series of normal fault systems that apparently formed simultaneously. Comparing the seismic results to existing Pacific paleo strain reconstructions, the timing of increased strain and local deformation direction fits well to our findings. We thus suggest that the multiple strike directions of the Suvarov Trough represent an extensional structure that was caused by the major, stepwise Pacific Plate reorganization during the Paleocene. |
format |
Article in Journal/Newspaper |
author |
Pietsch, Ricarda Uenzelmann-Neben, Gabriele |
spellingShingle |
Pietsch, Ricarda Uenzelmann-Neben, Gabriele Paleocene Pacific Plate reorganization mirrored in formation of the Suvarov Trough, Manihiki Plateau |
author_facet |
Pietsch, Ricarda Uenzelmann-Neben, Gabriele |
author_sort |
Pietsch, Ricarda |
title |
Paleocene Pacific Plate reorganization mirrored in formation of the Suvarov Trough, Manihiki Plateau |
title_short |
Paleocene Pacific Plate reorganization mirrored in formation of the Suvarov Trough, Manihiki Plateau |
title_full |
Paleocene Pacific Plate reorganization mirrored in formation of the Suvarov Trough, Manihiki Plateau |
title_fullStr |
Paleocene Pacific Plate reorganization mirrored in formation of the Suvarov Trough, Manihiki Plateau |
title_full_unstemmed |
Paleocene Pacific Plate reorganization mirrored in formation of the Suvarov Trough, Manihiki Plateau |
title_sort |
paleocene pacific plate reorganization mirrored in formation of the suvarov trough, manihiki plateau |
publisher |
Wiley |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/41673/ http://onlinelibrary.wiley.com/doi/10.1002/2016JB013355/abstract https://hdl.handle.net/10013/epic.48926 |
long_lat |
ENVELOPE(-54.683,-54.683,-63.433,-63.433) |
geographic |
Danger Islands Pacific |
geographic_facet |
Danger Islands Pacific |
genre |
Danger Islands |
genre_facet |
Danger Islands |
op_source |
EPIC3Journal of Geophysical Research-Solid Earth, Wiley, 121(10), pp. 7013-7023, ISSN: 0148-0227 |
op_relation |
Pietsch, R. orcid:0000-0002-1232-2950 and Uenzelmann-Neben, G. orcid:0000-0002-0115-5923 (2016) Paleocene Pacific Plate reorganization mirrored in formation of the Suvarov Trough, Manihiki Plateau , Journal of Geophysical Research-Solid Earth, 121 (10), pp. 7013-7023 . doi:10.1002/2016JB013355 <https://doi.org/10.1002/2016JB013355> , hdl:10013/epic.48926 |
op_doi |
https://doi.org/10.1002/2016JB013355 |
container_title |
Journal of Geophysical Research: Solid Earth |
container_volume |
121 |
container_issue |
10 |
container_start_page |
7013 |
op_container_end_page |
7023 |
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1766395831243505664 |