Dike intrusions during rifting episodes obey scaling relationships similar to earthquakes
As continental rifts evolve towards mid-ocean ridges, strain is accommodated by repeated episodes of faulting and magmatism. Discrete rifting episodes have been observed along two subaerial divergent plate boundaries, the Krafla segment of the Northern Volcanic Rift Zone in Iceland and the Manda-Har...
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Online Access: | http://hdl.handle.net/11585/775991 https://doi.org/10.1038/srep03886 https://www.nature.com/articles/srep03886 |
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ftunibolognairis:oai:cris.unibo.it:11585/775991 2024-09-15T18:13:59+00:00 Dike intrusions during rifting episodes obey scaling relationships similar to earthquakes L. , Passarelli E. , Rivalta A. , Shuler L., Passarelli E., Rivalta A., Shuler 2014 ELETTRONICO http://hdl.handle.net/11585/775991 https://doi.org/10.1038/srep03886 https://www.nature.com/articles/srep03886 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000331151900001 volume:4 issue:1 firstpage:1 lastpage:7 numberofpages:7 journal:SCIENTIFIC REPORTS info:eu-repo/grantAgreement/EC/FP7/240583 http://hdl.handle.net/11585/775991 doi:10.1038/srep03886 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84893219660 https://www.nature.com/articles/srep03886 info:eu-repo/semantics/openAccess Rifting Frequency-magnitude distribution Gutenberg-Richter law dyke volumes Omori law info:eu-repo/semantics/article 2014 ftunibolognairis https://doi.org/10.1038/srep03886 2024-06-24T14:24:59Z As continental rifts evolve towards mid-ocean ridges, strain is accommodated by repeated episodes of faulting and magmatism. Discrete rifting episodes have been observed along two subaerial divergent plate boundaries, the Krafla segment of the Northern Volcanic Rift Zone in Iceland and the Manda-Hararo segment of the Red Sea Rift in Ethiopia. In both cases, the initial and largest dike intrusion was followed by a series of smaller intrusions. By performing a statistical analysis of these rifting episodes, we demonstrate that dike intrusions obey scaling relationships similar to earthquakes. We find that the dimensions of dike intrusions obey a power law analogous to the Gutenberg-Richter relation and the long-term release of geodetic moment is governed by a relationship consistent with the Omori law. Due to the effects of magma supply, the timing of secondary dike intrusions differs from that of the aftershocks. This work provides evidence of self-similarity in the rifting process. Article in Journal/Newspaper Iceland IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) Scientific Reports 4 1 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
Rifting Frequency-magnitude distribution Gutenberg-Richter law dyke volumes Omori law |
spellingShingle |
Rifting Frequency-magnitude distribution Gutenberg-Richter law dyke volumes Omori law L. , Passarelli E. , Rivalta A. , Shuler Dike intrusions during rifting episodes obey scaling relationships similar to earthquakes |
topic_facet |
Rifting Frequency-magnitude distribution Gutenberg-Richter law dyke volumes Omori law |
description |
As continental rifts evolve towards mid-ocean ridges, strain is accommodated by repeated episodes of faulting and magmatism. Discrete rifting episodes have been observed along two subaerial divergent plate boundaries, the Krafla segment of the Northern Volcanic Rift Zone in Iceland and the Manda-Hararo segment of the Red Sea Rift in Ethiopia. In both cases, the initial and largest dike intrusion was followed by a series of smaller intrusions. By performing a statistical analysis of these rifting episodes, we demonstrate that dike intrusions obey scaling relationships similar to earthquakes. We find that the dimensions of dike intrusions obey a power law analogous to the Gutenberg-Richter relation and the long-term release of geodetic moment is governed by a relationship consistent with the Omori law. Due to the effects of magma supply, the timing of secondary dike intrusions differs from that of the aftershocks. This work provides evidence of self-similarity in the rifting process. |
author2 |
L., Passarelli E., Rivalta A., Shuler |
format |
Article in Journal/Newspaper |
author |
L. , Passarelli E. , Rivalta A. , Shuler |
author_facet |
L. , Passarelli E. , Rivalta A. , Shuler |
author_sort |
L. , Passarelli |
title |
Dike intrusions during rifting episodes obey scaling relationships similar to earthquakes |
title_short |
Dike intrusions during rifting episodes obey scaling relationships similar to earthquakes |
title_full |
Dike intrusions during rifting episodes obey scaling relationships similar to earthquakes |
title_fullStr |
Dike intrusions during rifting episodes obey scaling relationships similar to earthquakes |
title_full_unstemmed |
Dike intrusions during rifting episodes obey scaling relationships similar to earthquakes |
title_sort |
dike intrusions during rifting episodes obey scaling relationships similar to earthquakes |
publishDate |
2014 |
url |
http://hdl.handle.net/11585/775991 https://doi.org/10.1038/srep03886 https://www.nature.com/articles/srep03886 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000331151900001 volume:4 issue:1 firstpage:1 lastpage:7 numberofpages:7 journal:SCIENTIFIC REPORTS info:eu-repo/grantAgreement/EC/FP7/240583 http://hdl.handle.net/11585/775991 doi:10.1038/srep03886 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84893219660 https://www.nature.com/articles/srep03886 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/srep03886 |
container_title |
Scientific Reports |
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4 |
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1810451766929522688 |