Physics
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007e%26psl.256..473h&link_type=abstract
Earth and Planetary Science Letters, Volume 256, Issue 3-4, p. 473-483.
Physics
28
Scientific paper
A combination of statistical studies on present-day subduction zones and three-dimensional (3D) laboratory models is performed with the aim to clarify the way that plate kinematics control the geometry of the slab and the overriding plate deformation in subduction zones. In 3D laboratory models, the analogue of a two layer linearly viscous lithosphere upper mantle system is achieved by means of silicon putty glucose syrup tank experiment. The subducting and overriding plate velocities are systematically changed by exploring the variability field of natural plate kinematics. Both statistical and modelling approaches recognize the importance of overriding plate motion on subduction process behavior: (1) trenches migrate at a rate close to the overriding plate motion, but always move slower than the overriding plates. The mechanism at work is a direct consequence of “slab anchoring” opposed by both lithosphere and mantle viscous resistance and is responsible for overriding plate deformation and slab geometry variability. (2) An overriding plate shortens when the overriding plate moves toward the trench and conditions that are favourable for overriding plate extension are created when the overriding plate moves away from the trench. (3) Shallow and steep dips are found if the overriding plate moves toward and away from the trench, respectively.
Faccenna Claudio
Funiciello Francesca
Heuret Arnauld
Lallemand Serge
No associations
LandOfFree
Plate kinematics, slab shape and back-arc stress: A comparison between laboratory models and current subduction zones 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 Plate kinematics, slab shape and back-arc stress: A comparison between laboratory models and current subduction zones, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plate kinematics, slab shape and back-arc stress: A comparison between laboratory models and current subduction zones will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1079087