Oceanic crust Oceanic crust Oceanic crust is the uppermost layer of the oceanic portion of a tectonic plate. It is composed of the upper oceanic crust, with pillow lavas and a dike complex, and the lower oceanic crust, composed of troctolite, gabbro and ultramafic cumulates. The crust overlies the solidified and uppermost layer of the mantle. The crust and the solid mantle layer together constitute oceanic lithosphere. Oceanic crust is primarily composed of mafic rocks, or sima, which is rich in iron and magnesium. It is thinner than continental crust, or sial, generally less than 10 kilometers thick; however it is denser,
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