Fig.15
From: Velocity structure in the crust beneath the Kyushu area
A schematic model of our interpretation of the low-velocity area beneath the Kyushu Mountains. (a) Low-density rocks due to subduction of the Kyushu-Palau Ridge, and an acquisition of buoyancy. (b) A detachment of the uppermost crust of the Kyushu-Palau ridge (c) An accretion of low-density rocks at the bottom of the crust beneath the Kyushu Mountains.