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Topographic and volcanic asymmetry around the Red Sea - Constraints on rift modelsThis paper describes a model which explains the topographic and volcanic asymmetry around the Red Sea. The model involves asthenospheric upwelling beneath a lithosphere of laterally variable strength in which a weak zone (e.g., a suture or a region with quartz-bearing lower crust) may have controlled the location of rifting. In this model, Tertiary volcanism in Saudi Arabia marks the location of initial upwelling, and uplift is due to crustal thickening associated with magmatic underplating and crustal intrusion. The model predicts that the incipient crustal rift and the locus of mantle upwelling will tend to align as rifting continues and stable seafloor spreading develops, implying relative migration of the lithosphere and asthenosphere.
Document ID
19900040566
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dixon, Timothy H.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ivins, Erik R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Franklin, Brenda J.
(JPL Pasadena, CA, United States)
Date Acquired
August 14, 2013
Publication Date
December 1, 1989
Publication Information
Publication: Tectonics
Volume: 8
ISSN: 0278-7407
Subject Category
Geophysics
Accession Number
90A27621
Distribution Limits
Public
Copyright
Other

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