Phase D, an elastically anisotropic hydrous mineral ... on phase D aggregates under conditions of the lower mantle transition ...
(a, b) Images show deformation cell assemblage and microstructure of shear-deformed Al bearing-phase D aggregate under 20GPa, 800°C, conditions of lower mantle transition zone. Large deviation of ...
In the process, they discovered a thickened section of the mantle transition zone, located about 410 to 660 kilometers below ...