Water-induced buoyancy controls transient water storage in the mantle transition zone

Taras V. Gerya, Nickolas M. Bardi, Shun-ichiro Karato +1

The spinel phase (wadsleyite, ringwoodite) in the mantle transition zone (MTZ), can contain up to 1-2 weight percent of water. However, whether these water reservoirs in the MTZ ar…