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,
Between the Buttons of something really special and he was messing it up. But the way Brian appeared to not give a shit is exactly what the band was about." Outtakes from this photo session were later used for the cover and inner sleeves of the 1972 ABKCO compilation release "More Hot Rocks (Big Hits & Fazed Cookies)". The back cover of "Between the Buttons" is dominated by a six-panel cartoon accompanied by a rhythmic poem drawn by drummer Charlie Watts. When Watts asked Oldham what the title of the album would be, he told him it was "between the buttons", a term