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Tectonic escape in the evolution of the continental crustThe continental crust originated by processes similar to those operating today and continents consist of material most of which originated long ago in arc-systems that have later been modified, especially at Andean margins and in continental collisions where crustal thickening is common. Collision-related strike-slip motion is a general process in continental evolution. Because buoyant continental (or arc) material generally moves during collision toward a nearby oceanic margin where less buoyant lithosphere crops out, the process of major strike-slip dominated motion toward a 'free-face' is called 'tectonic escape'. Tectonic escape is and has been an element in continental evolution throughout recorded earth-history. It promotes: (1) rifting and the formation of rift-basins with thinning of thickened crust; (2) pervasive strike-slip faulting late in orogenic history which breaks up mountain belts across strike and may juxtapose unrelated sectors in cross-section; (3) localized compressional mountains and related foreland-trough basins.
Document ID
19860059171
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Burke, K.
(Lunar and Planetary Institute; Houston, University TX, United States)
Sengor, C.
(Lunar and Planetary Institute, Houston, TX; Istanbul Technical University Turkey)
Date Acquired
August 12, 2013
Publication Date
January 1, 1986
Subject Category
Geophysics
Accession Number
86A43909
Funding Number(s)
CONTRACT_GRANT: NASW-3389
Distribution Limits
Public
Copyright
Other

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