On the structure and formation of fracture zones
Studies of the oceanic fracture zones, as well as field observations of the on‐land parts of a fracture zone in Iceland, show that there are numerous tension fractures, normal faults, small‐scale grabens and dykes within, and trending subparallel with, the fracture zones. These structures indicate t...
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crwiley:10.1111/j.1365-3121.1993.tb00252.x 2024-06-02T07:57:22+00:00 On the structure and formation of fracture zones Gudmundsson, Agust 1993 http://dx.doi.org/10.1111/j.1365-3121.1993.tb00252.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-3121.1993.tb00252.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-3121.1993.tb00252.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Terra Nova volume 5, issue 3, page 215-224 ISSN 0954-4879 1365-3121 journal-article 1993 crwiley https://doi.org/10.1111/j.1365-3121.1993.tb00252.x 2024-05-03T10:57:50Z Studies of the oceanic fracture zones, as well as field observations of the on‐land parts of a fracture zone in Iceland, show that there are numerous tension fractures, normal faults, small‐scale grabens and dykes within, and trending subparallel with, the fracture zones. These structures indicate that, in addition to the shear displacement, there is considerable extension associated with the development of fracture zones and that many of them may be regarded as complex graben structures. The ridges surrounding the continents of Africa and Antarctica are examples of mid‐ocean ridges that are moving away from the continental margins where they originated and therefore expanding. Here it is suggested that as the perimeter of an expanding ridge increases, the tensile stresses associated with the ridge extension may contribute to the formation of fracture zones. Article in Journal/Newspaper Antarc* Antarctica Iceland Wiley Online Library Terra Nova 5 3 215 224 |
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Open Polar |
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Wiley Online Library |
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crwiley |
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English |
description |
Studies of the oceanic fracture zones, as well as field observations of the on‐land parts of a fracture zone in Iceland, show that there are numerous tension fractures, normal faults, small‐scale grabens and dykes within, and trending subparallel with, the fracture zones. These structures indicate that, in addition to the shear displacement, there is considerable extension associated with the development of fracture zones and that many of them may be regarded as complex graben structures. The ridges surrounding the continents of Africa and Antarctica are examples of mid‐ocean ridges that are moving away from the continental margins where they originated and therefore expanding. Here it is suggested that as the perimeter of an expanding ridge increases, the tensile stresses associated with the ridge extension may contribute to the formation of fracture zones. |
format |
Article in Journal/Newspaper |
author |
Gudmundsson, Agust |
spellingShingle |
Gudmundsson, Agust On the structure and formation of fracture zones |
author_facet |
Gudmundsson, Agust |
author_sort |
Gudmundsson, Agust |
title |
On the structure and formation of fracture zones |
title_short |
On the structure and formation of fracture zones |
title_full |
On the structure and formation of fracture zones |
title_fullStr |
On the structure and formation of fracture zones |
title_full_unstemmed |
On the structure and formation of fracture zones |
title_sort |
on the structure and formation of fracture zones |
publisher |
Wiley |
publishDate |
1993 |
url |
http://dx.doi.org/10.1111/j.1365-3121.1993.tb00252.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-3121.1993.tb00252.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-3121.1993.tb00252.x |
genre |
Antarc* Antarctica Iceland |
genre_facet |
Antarc* Antarctica Iceland |
op_source |
Terra Nova volume 5, issue 3, page 215-224 ISSN 0954-4879 1365-3121 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-3121.1993.tb00252.x |
container_title |
Terra Nova |
container_volume |
5 |
container_issue |
3 |
container_start_page |
215 |
op_container_end_page |
224 |
_version_ |
1800740510622547968 |