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closure of the africa-eurasia-north america plate motion circuit and tectonics of the gloria faultThe current motions of the African, Eurasian, and North American plates are examined. The problems addressed include whether there is resolvable motion of a Spitsbergen microplate, the direction of motion between the African and North American plates, whether the Gloria fault is an active transform fault, and the implications of plate circuit closures for rates of intraplate deformation. Marine geophysical data and magnetic profiles are used to construct a model which predicts about 4 mm/yr slip across the Azores-Gibraltar Ridge, and west-northwest convergence near Gibraltar. The analyzed data are consistent with a rigid plate model with the Gloria fault being a transform fault.
Document ID
19890052289
Document Type
Reprint (Version printed in journal)
Authors
Argus, Donald F.
(Northwestern Univ. Evanston, IL, United States)
Gordon, Richard G.
(Northwestern Univ. Evanston, IL, United States)
Demets, Charles
(Northwestern Univ. Evanston, IL, United States)
Stein, Seth
(Northwestern University Evanston, IL, United States)
Date Acquired
August 14, 2013
Publication Date
May 10, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
GEOPHYSICS
Funding Number(s)
CONTRACT_GRANT: NAG5-885
Distribution Limits
Public
Copyright
Other