Ridge migration, asthenospheric flow and the origin of magmatic segmentation in the global mid-ocean ridge system
Global observations of mid-ocean ridge (MOR) bathymetry demonstrate an asymmetry in axial depth across ridge offsets that is correlated with the direction of ridge migration. Motivated by these observations, we have developed two-dimensional numerical models of asthenospheric flow and melting beneat...
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| Format: | Journal article |
| Language: | English |
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2004
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| _version_ | 1826264461948747776 |
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| author | Katz, R Spiegelman, M Carbotte, S |
| author_facet | Katz, R Spiegelman, M Carbotte, S |
| author_sort | Katz, R |
| collection | OXFORD |
| description | Global observations of mid-ocean ridge (MOR) bathymetry demonstrate an asymmetry in axial depth across ridge offsets that is correlated with the direction of ridge migration. Motivated by these observations, we have developed two-dimensional numerical models of asthenospheric flow and melting beneath a migrating MOR. The modification of the flow pattern produced by ridge migration leads to an asymmetry in melt production rates on either side of the ridge. By coupling a simple parametric model of three dimensional melt focusing to our simulations, we generate predictions of axial depth differences across offsets in the MOR. These predictions are quantitatively consistent with the observed asymmetry. Copyright 2004 by the American Geophysical Union. |
| first_indexed | 2024-03-06T20:08:12Z |
| format | Journal article |
| id | oxford-uuid:299f74d2-eae2-40b7-8dc3-ca7fcc3f6503 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:08:12Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:299f74d2-eae2-40b7-8dc3-ca7fcc3f65032022-03-26T12:20:13ZRidge migration, asthenospheric flow and the origin of magmatic segmentation in the global mid-ocean ridge systemJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:299f74d2-eae2-40b7-8dc3-ca7fcc3f6503EnglishSymplectic Elements at Oxford2004Katz, RSpiegelman, MCarbotte, SGlobal observations of mid-ocean ridge (MOR) bathymetry demonstrate an asymmetry in axial depth across ridge offsets that is correlated with the direction of ridge migration. Motivated by these observations, we have developed two-dimensional numerical models of asthenospheric flow and melting beneath a migrating MOR. The modification of the flow pattern produced by ridge migration leads to an asymmetry in melt production rates on either side of the ridge. By coupling a simple parametric model of three dimensional melt focusing to our simulations, we generate predictions of axial depth differences across offsets in the MOR. These predictions are quantitatively consistent with the observed asymmetry. Copyright 2004 by the American Geophysical Union. |
| spellingShingle | Katz, R Spiegelman, M Carbotte, S Ridge migration, asthenospheric flow and the origin of magmatic segmentation in the global mid-ocean ridge system |
| title | Ridge migration, asthenospheric flow and the origin of magmatic segmentation in the global mid-ocean ridge system |
| title_full | Ridge migration, asthenospheric flow and the origin of magmatic segmentation in the global mid-ocean ridge system |
| title_fullStr | Ridge migration, asthenospheric flow and the origin of magmatic segmentation in the global mid-ocean ridge system |
| title_full_unstemmed | Ridge migration, asthenospheric flow and the origin of magmatic segmentation in the global mid-ocean ridge system |
| title_short | Ridge migration, asthenospheric flow and the origin of magmatic segmentation in the global mid-ocean ridge system |
| title_sort | ridge migration asthenospheric flow and the origin of magmatic segmentation in the global mid ocean ridge system |
| work_keys_str_mv | AT katzr ridgemigrationasthenosphericflowandtheoriginofmagmaticsegmentationintheglobalmidoceanridgesystem AT spiegelmanm ridgemigrationasthenosphericflowandtheoriginofmagmaticsegmentationintheglobalmidoceanridgesystem AT carbottes ridgemigrationasthenosphericflowandtheoriginofmagmaticsegmentationintheglobalmidoceanridgesystem |