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Subduction pp 134-173 | Cite as

Jumps of Subduction Zones, Subduction Reversal, and Closing of Back Arc Basins

  • Alexander I. Shemenda
Chapter
Part of the Modern Approaches in Geophysics book series (MAGE, volume 11)

Abstract

In Section 4.11 we discussed the mechanisms for increasing compression of the lithosphere in a subduction zone. These mechanisms are; subduction of young lithosphere, an increase in subduction rate, subduction of different asperities (seamounts, ridges) and plateaux. The most intensive compression occurs during subduction of the continental margin, that is during collision of the subduction zone with a continent. High compressive stresses can produce failure of the lithosphere in a new place resulting in the initiation of a new subduction zone at this place. Such a phenomenon is recognised in many fold belts[Dewey and Bird1970;Kovalev1985;Koltypin1991] and can be designated as a jump of subduction zone (similar to the jumps of spreading axis in fast[Shemenda and Grocholsky1991], slow[Shemenda and Grocholsky1994] ridges and the jumps of continental rifts[Malkin and Shemenda1991]). With jumps of subduction zones are related such processes as reorganization of the plate boundaries, evolution of the inner trench slopes, reversal subduction[Dickinson and Seely1979;Mitchell1984], as well as closing of back arc basins. This chapter is devoted to these problems.

Keywords

Continental Margin Subduction Zone Flexural Buckling Overriding Plate Ryukyu Subduction Zone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 1994

Authors and Affiliations

  • Alexander I. Shemenda
    • 1
  1. 1.Laboratoire de Géophysique et TectoniqueUniversité de Montpellier IIMontpellierFrance

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