The cold and relatively dry nature of mantle forearcs in subduction zones

• Published in: Nature geoscience Vol. 10; no. 5; pp. 333 - 337
• Main Authors: Abers, G. A., van Keken, P. E., Hacker, B. R.
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 01.05.2017; Nature Publishing Group
• Subjects: 704/2151/210; 704/2151/431; 704/2151/508; 704/2151/562; Dehydration; Earth and Environmental Science; Earth science; Earth Sciences; Earth System Sciences; Earthquakes; Geochemistry; Geology; Geophysics/Geodesy; Hydration; Metamorphic rocks; perspective; Reservoirs; Seismic activity; Slabs; Temperature; Santa Barbara California; California; Alaska Peninsula; United States > US

Dehydration of subducting slabs could create a reservoir of water in the overlying mantle. A synthesis of thermal model results, however, shows that slab dehydration is slow over geological time scales, so such reservoirs are probably rare. Some of Earth's coldest mantle is found in subduction...