The role of mobile belts for the longevity of deep cratonic lithosphere: The crumple zone model

Lenardic, A, Moresi, L and Muhlhaus, H (2000) The role of mobile belts for the longevity of deep cratonic lithosphere: The crumple zone model. Geophysical Research Letters, 27 8: 1235-1238.


Author Lenardic, A
Moresi, L
Muhlhaus, H
Title The role of mobile belts for the longevity of deep cratonic lithosphere: The crumple zone model
Journal name Geophysical Research Letters   Check publisher's open access policy
Publication date 2000
Sub-type Article
DOI 10.1029/1999GL008410
Volume number 27
Issue number 8
ISSN 0094-8276
Start page 1235
End page 1238
Total pages 4
Language eng
Abstract Many Archean cratons are surrounded by Proterozoic mobile belts that have experienced episodes of tectonic re-activation over their lifetimes. This suggests that mobile belt lithosphere may be associated with long lived, inherited weakness. It is proposed that the proximity of this weakness can increase the longevity of deep Archean lithosphere by buffering Archean cratons from mantle derived stresses. The physical plausibility of this idea is explored through numerical simulations of mantle convection that include continents and allow for material rheologies that model the combined brittle and ductile behavior of the lithosphere. Within the simulations, the longevity of deep cratonic lithosphere does increase if it is buffered by mobile belts that can fail at relatively low stress levels.
Keyword Geosciences, Multidisciplinary
Mantle Convection
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article
Collection: Earth Systems Science Computational Centre Publications
 
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Created: Mon, 13 Aug 2007, 11:42:55 EST