Circulation of water in deep Earth's interior

The existence of water in deep Earth is considered to play an important role in geodynamics, because water drastically changes the physical properties of mantle rock, such as melting temperature, electric conductivity, and rheological properties. Water is transported into deep Earth by the hydrous minerals in the subducting cold plates. Hydrous minerals, such as serpentine, mica and clay minerals, contain water in the form of hydroxyl (-OH) in the crystal structure. Most of the hydrous minerals decompose into anhydrous minerals and water when they are transported into deep Earth, at 40-100 km depth, due to the high temperature and pressure conditions.

Circulation of water in deep Earth's interior

Phase H is a hydrous mineral that is considered to be an important carrier of water into deep Earth. We determined the dissociation condition of phase H by a theoretical calculation based on ...

Mon 19 Aug 19 from Phys.org

Circulation of water in deep Earth's interior, Mon 26 Aug 19 from SpaceDaily

Circulation of water in deep Earth's interior, Mon 19 Aug 19 from ScienceDaily

Circulation of water in deep Earth's interior, Mon 19 Aug 19 from Eurekalert

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