Influences of Lower-Mantle Properties on the Formation of Asthenosphere in Oceanic Upper Mantle
- Received Date: 2017-03-21
- Accepted Date: 2017-03-21
- Available Online: 2017-03-21
Abstract: Asthenosphere is a venerable concept based on geological intuition of Reginald Daly nearly 100 years ago. There have been various explanations for the existence of the asthenosphere. The concept of a plume-fed asthenosphere has been around for a few years due to the ideas put forth by Yamamoto et al.. Using a two-dimensional Cartesian code based on finite-volume method, we have investigated the influences of lower-mantle physical properties on the formation of a low-viscosity zone in the oceanic upper mantle in regions close to a large mantle upwelling...