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Models of fracture orientation at oblique spreading centres

Tuckwell, G.W., Bull, J.M. and Sanderson, D.J. (1996) Models of fracture orientation at oblique spreading centres Journal of the Geological Society, 153, (2), pp. 185-189. (doi:10.1144/gsjgs.153.2.0185).

Record type: Article


Three models are proposed for the orientation of extensional faults and dykes at mid-ocean ridges based on their relationship to the ridge axis and the relative plate separation vector. These models predict four ridge geometries allowing them to be tested by orientation data from 17 different sites within the Earth's oceans. A transtensional model is shown to be generally applicable to the structure of mid-ocean ridges, with special conditions required for a departure from it. Spreading rate influences ridge geometry with intermediate and fast spreading ridges more likely to have an orthogonal spreading geometry, which is an end member case of the transtensional model

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Published date: April 1996
Keywords: Mid-ocean ridges, structural geology, transtension, spreading centres, faults


Local EPrints ID: 76144
ISSN: 0016-7649
PURE UUID: f38342c1-fad2-4acb-a429-69bdf7b6cf6a
ORCID for D.J. Sanderson: ORCID iD

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:41

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