Statistics – Computation
Scientific paper
Nov 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3722308a&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 22, CiteID L22308
Statistics
Computation
3
Computational Geophysics: Numerical Solutions (4255), Tectonophysics: Dynamics Of Lithosphere And Mantle: General (1213), Tectonophysics: Dynamics: Convection Currents, And Mantle Plumes, Tectonophysics: Rheology: General (1236, 8032), Tectonophysics: Stresses: General
Scientific paper
Dynamically consistent global models of mantle convection with plates are developed that are consistent with detailed constraints on the state of stress and strain rate from deep focus earthquakes. Models that best fit plateness criteria and plate motion data have strong slabs that have high stresses. The regions containing the MW 8.3 Bolivia and MW 7.6 Tonga 1994 events are considered in detail. Modeled stress orientations match stress patterns from earthquake focal mechanisms. A yield stress of at least 100 MPa is required to fit plate motions and matches the minimum stress requirement obtained from the stress drop for the Bolivia 1994 deep focus event. The minimum strain rate determined from seismic moment release in the Tonga slab provides an upper limit of ˜200 MPa on the strength in the slab.
Alisic Laura
Burstedde Carsten
Ghattas Omar
Gurnis Michael
Stadler Georg
No associations
LandOfFree
Slab stress and strain rate as constraints on global mantle flow does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Slab stress and strain rate as constraints on global mantle flow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Slab stress and strain rate as constraints on global mantle flow will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1483872