Statistics – Computation
Scientific paper
Apr 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995georl..22..743m&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 22, no. 7, p. 743-746
Statistics
Computation
16
Advection, Computerized Simulation, Earth Mantle, Kinematics, Mixing Layers (Fluids), Rheology, Error Analysis, Flow Velocity, Geochemistry, Three Dimensional Flow, Time Dependence
Scientific paper
Recent experimental and computational studies show that 'islands' (unmixed regions that do not interact with surrounding regions) are ubiquitous features in chaotically advecting fluids. Such islands quite naturally account for the geochemically inferred coexistence of apparently distinct, long-lived geochemical heterogeneity with relatively homogeneous regions of an actively convecting mantle. These results also indicate that mixing patterns -- the set of islands and folds characterizing the large-scale material advection -- are sensitive to small variations in the rheology of the fluid. Therefore, interpretation of numerical simulations of mantle transport and mixing is less straightforward than currently supposed. Computational studies of analytic flow solutions with systematically introduced and controlled errors indicate that mantle simulations are unlikely to accurately compute individual trajectories for even moderate time, but that trajectory ensembles can be accurately computed for long time. Significantly, computations also indicate that mixing and transport results may not evolve smoothly with increased rheological realism.
Bina Craig R.
Metcalfe Guy
Ottino Julio M.
No associations
LandOfFree
Kinematic considerations for mantle mixing 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 Kinematic considerations for mantle mixing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kinematic considerations for mantle mixing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1829058