Evolution of migrating transform faults in anisotropic oceanic crust: examples from Iceland
Major transform fault zones link extensional segments of the North American – Eurasian plate boundary as it transects the Iceland Hotspot. Changes in plate boundary geometry, involving ridge jumps, rift propagation, and related transform fault zone migration, have occurred as the boundary has moved...
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crcansciencepubl:10.1139/cjes-2018-0260 2024-06-23T07:53:52+00:00 Evolution of migrating transform faults in anisotropic oceanic crust: examples from Iceland Karson, Jeffrey A. Brandsdóttir, Bryndís Einarsson, Páll Sæmundsson, Kristján Farrell, James A. Horst, Andrew J. 2019 http://dx.doi.org/10.1139/cjes-2018-0260 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjes-2018-0260 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjes-2018-0260 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 56, issue 12, page 1297-1308 ISSN 0008-4077 1480-3313 journal-article 2019 crcansciencepubl https://doi.org/10.1139/cjes-2018-0260 2024-06-13T04:10:50Z Major transform fault zones link extensional segments of the North American – Eurasian plate boundary as it transects the Iceland Hotspot. Changes in plate boundary geometry, involving ridge jumps, rift propagation, and related transform fault zone migration, have occurred as the boundary has moved relative to the hotspot. Reconfiguration of transform fault zones occurred at about 6 Ma in northern Iceland and began about 3 Ma in southern Iceland. These systems show a range of different types of transform fault zones, ranging from diffuse, oblique rift zones to narrower, well-defined, transform faults oriented parallel to current plate motions. Crustal deformation structures correlate with the inferred duration and magnitude of strike-slip displacements. Collectively, the different expressions of transform zones may represent different stages of development in an evolutionary sequence that may be relevant for understanding the tectonic history of plate boundaries in Iceland as well as the structure of transform fault zones on more typical parts of the mid-ocean ridge system. Article in Journal/Newspaper Iceland Canadian Science Publishing Canadian Journal of Earth Sciences 56 12 1297 1308 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Major transform fault zones link extensional segments of the North American – Eurasian plate boundary as it transects the Iceland Hotspot. Changes in plate boundary geometry, involving ridge jumps, rift propagation, and related transform fault zone migration, have occurred as the boundary has moved relative to the hotspot. Reconfiguration of transform fault zones occurred at about 6 Ma in northern Iceland and began about 3 Ma in southern Iceland. These systems show a range of different types of transform fault zones, ranging from diffuse, oblique rift zones to narrower, well-defined, transform faults oriented parallel to current plate motions. Crustal deformation structures correlate with the inferred duration and magnitude of strike-slip displacements. Collectively, the different expressions of transform zones may represent different stages of development in an evolutionary sequence that may be relevant for understanding the tectonic history of plate boundaries in Iceland as well as the structure of transform fault zones on more typical parts of the mid-ocean ridge system. |
format |
Article in Journal/Newspaper |
author |
Karson, Jeffrey A. Brandsdóttir, Bryndís Einarsson, Páll Sæmundsson, Kristján Farrell, James A. Horst, Andrew J. |
spellingShingle |
Karson, Jeffrey A. Brandsdóttir, Bryndís Einarsson, Páll Sæmundsson, Kristján Farrell, James A. Horst, Andrew J. Evolution of migrating transform faults in anisotropic oceanic crust: examples from Iceland |
author_facet |
Karson, Jeffrey A. Brandsdóttir, Bryndís Einarsson, Páll Sæmundsson, Kristján Farrell, James A. Horst, Andrew J. |
author_sort |
Karson, Jeffrey A. |
title |
Evolution of migrating transform faults in anisotropic oceanic crust: examples from Iceland |
title_short |
Evolution of migrating transform faults in anisotropic oceanic crust: examples from Iceland |
title_full |
Evolution of migrating transform faults in anisotropic oceanic crust: examples from Iceland |
title_fullStr |
Evolution of migrating transform faults in anisotropic oceanic crust: examples from Iceland |
title_full_unstemmed |
Evolution of migrating transform faults in anisotropic oceanic crust: examples from Iceland |
title_sort |
evolution of migrating transform faults in anisotropic oceanic crust: examples from iceland |
publisher |
Canadian Science Publishing |
publishDate |
2019 |
url |
http://dx.doi.org/10.1139/cjes-2018-0260 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjes-2018-0260 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjes-2018-0260 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Canadian Journal of Earth Sciences volume 56, issue 12, page 1297-1308 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjes-2018-0260 |
container_title |
Canadian Journal of Earth Sciences |
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56 |
container_issue |
12 |
container_start_page |
1297 |
op_container_end_page |
1308 |
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1802645736007925760 |