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Global tectonic maps

Sandwell, David and Anderson, Don L. and Wessel, Paul (2005) Global tectonic maps. In: Plates, Plumes, and Paradigms. Special papers (Geological Society of America). No.388. Geological Society of America , Boulder, CO, pp. 1-10. ISBN 9780813723884.

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The original kinematic plate tectonic model proposed that the outer shell (lithosphere) of the Earth is divided into a small number of nearly rigid plates that slide over the weak asthenosphere. The plates are the surface thermal boundary layer of upper-mantle or global-scale mantle convection, and the descending slabs are the primary active components of the convective system. The plate boundaries are generally narrow and are characterized by earthquakes and volcanoes. The plates, however, are not really rigid or undeformable, and the plate boundaries need not be localized (Dewey and Bird, 1970; Gordon, 2000; Anderson, 2001, 2002; Steinberger et al., 2004). Not only is the plate-slab system the main driver of plate tectonics and mantle convection, but much of the energy dissipation may be in this part of the system as well, rather than in mantle viscosity (Conrad and Hager, 2001). Plates may be held together by lateral compression-or absence of extension-rather than by strength or rigidity; rocks are strong in compression but have little resistance to extension.

Item Type:Book Section
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Additional Information:© 2005 Geological Society of America. Manuscript accepted by the Society January 3, 2005. The data provided in the figures presented here represent decades of data collection by thousands of scientists. The figures were constructed using Generic Mapping Tools (Wessel and Smith, 1995).
Subject Keywords:global tectonics, topography, seismicity
Series Name:Special papers (Geological Society of America)
Issue or Number:388
Record Number:CaltechAUTHORS:20121018-082057314
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34962
Deposited By: Tony Diaz
Deposited On:22 Oct 2012 16:25
Last Modified:09 Nov 2021 23:11

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