Core–mantle boundary Core–mantle boundary The core–mantle boundary (CMB in the parlance of solid earth geophysicists) of the Earth lies between the planet's silicate mantle and its liquid iron-nickel outer core. This boundary is located at approximately 2891 km (1796 mi) depth beneath the Earth's surface. The boundary is observed via the discontinuity in seismic wave velocities at that depth due to the differences between the acoustic impedances of the solid mantle and the molten outer core. P-wave velocities are much slower in the outer core than in the deep mantle while S-waves do not exist at all in the liquid portion of
We Do What We Want We Do What We Want We Do What We Want is the fifth studio album by the American rock band Emery. The album was released on March 29, 2011 through Tooth & Nail Records and Solid State Records. Shortly after announcing the release of "We Do What We Want", founding bassist Devin Shelton announced he would be taking an indefinite hiatus from Emery. Emery was in the process of working on more stripped-down acoustic album when guitarist/vocalist Devin Shelton decided to take an indefinite leave of absence from the group. After his departure, the remaining four members made the conscious