منابع مشابه
Large-scale adaptive mantle convection simulation
Carsten Burstedde,1,2 Georg Stadler,1 Laura Alisic,3,4 Lucas C. Wilcox,1,5 Eh Tan,6,7 Michael Gurnis3 and Omar Ghattas1,8,9 1Institute for Computational Engineering and Sciences (ICES), The University of Texas at Austin, Austin, TX, USA. E-mail: [email protected] 2Institut fur Numerische Simulation, Rheinische Friedrich-Wilhelms-Universität Bonn, Germany. E-mail: [email protected]....
متن کاملZoned mantle convection.
We review the present state of our understanding of mantle convection with respect to geochemical and geophysical evidence and we suggest a model for mantle convection and its evolution over the Earth's history that can reconcile this evidence. Whole-mantle convection, even with material segregated within the D" region just above the core-mantle boundary, is incompatible with the budget of argo...
متن کاملTop driven asymmetric mantle convection
The role of decoupling in the low-velocity zone is crucial for understanding plate tectonics and mantle convection. Mantle convection models fail to integrate plate kinematics and thermodynamics of the mantle. In a first gross estimate, we computed at about 306 km/yr the volume of the plates lost along subduction zones. Mass balance predicts that slabs are compensated by broad passive upwelling...
متن کاملPhase boundaries and mantle convection.
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متن کاملOsmium isotopes and mantle convection.
The decay of (187)Re to (187)Os (with a half-life of 42 billion years) provides a unique isotopic fingerprint for tracing the evolution of crustal materials and mantle residues in the convecting mantle. Ancient subcontinental mantle lithosphere has uniquely low Re/Os and (187)Os/(188)Os ratios due to large-degree melt extraction, recording ancient melt-depletion events as old as 3.2 billion yea...
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ژورنال
عنوان ژورنال: Nature
سال: 1985
ISSN: 0028-0836,1476-4687
DOI: 10.1038/317478b0