Role of water in the Earth and Planets.

概要

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Role of water in the Earth and planets is discussed. Water is one of the most important species controlling the dynamics and evolution of the Earth and planets. Water decreases the melting temperature of the mantle materials, and promotes the magmatism of the Earth. Water has a large effect on the rheology of the crust and mantle minerals such as quartz and olivine, as is called hydrolytic weakening (water weakening). Small amount of water strongly enhances flow and deformation in the crust and mantle. Water is trapped as various hydrous minerals in the deep mantle especially under the low temperature conditions such as in the descending slabs. Water together with other volatile species such as H2, He and CH4, and NH3 is an important constituent in the Jovian planets and satellites. Water bearing supercritical fluid plays very important roles in the deep atmosphere of the Jovian planets.
日本高圧力学会の論文