Topic
Slab
About: Slab is a research topic. Over the lifetime, 31617 publications have been published within this topic receiving 318693 citations.
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01 Jan 2005
178 citations
TL;DR: In this article, a general algorithm to reorient bulk unit cells using basis and covariant transformations is presented, which converges the surface energy with respect to slab thickness requiring only one bulk and one relatively thin slab calculation with moderate k-point densities.
177 citations
TL;DR: In this article, the authors quantify the net slab pull force (FNSP) with respect to the negative buoyancy force of the slab during subduction, and show that FNSP increases with increasing slab length.
Abstract: [1] It has remained unclear how much of the negative buoyancy force of the slab (FB) is used to pull the trailing plate at the surface into the mantle. Here I present three-dimensional laboratory experiments to quantify the net slab pull force (FNSP) with respect to FB during subduction. Results show that FNSP increases with increasing slab length and dip up to ∼8–12% of FB, making FNSP up to twice as large as the ridge push force. The remainder of FB is primarily used to drive rollback-induced mantle flow (∼70%), to bend the subducting plate at the trench (∼15–30%) and to overcome shear resistance between slab and mantle (0–8%).
177 citations
TL;DR: In this article, the authors developed a numerical model to investigate these mechanisms and tested it through a comparison of the model results with the observations of the Peru flat slab where all three mechanisms seem to be contributing.
176 citations
TL;DR: In this paper, a suite of benchmarks are developed to facilitate the comparison of numerical models for the dynamics and thermal structure of subduction zones based on a thermomechanical approach in which the slab is prescribed kinematically and the wedge flow is computed dynamically.
176 citations