No significant boron in the hydrated mantle of most subducting slabs

oleh: Andrew M. McCaig, Sofya S. Titarenko, Ivan P. Savov, Robert A. Cliff, David Banks, Adrian Boyce, Samuele Agostini

Format: Article
Diterbitkan: Nature Portfolio 2018-11-01

Deskripsi

Boron is one of the main proxies for seawater-derived fluids in subduction zone volcanics and it is vital to characterise the location and concentration of boron in the oceanic lithosphere. Here the authors show that boron concentration in the mantle of downgoing slabs has been overestimated, because boron is strongly decoupled from water in the hydration process.