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,
What We Do in the Shadows What We Do in the Shadows A documentary crew (who are wearing crucifixes) follows four vampire roommates—Viago, Vladislav, Deacon, and Petyr—who share a flat in the Wellington suburb of Te Aro. Although Viago, Vladislav and Deacon are all several centuries old, they have retained normal human appearances, but the 8,000-year-old Petyr resembles Count Orlok and acts more savagely than the younger vampires. Each night, Viago, Vladislav, and Deacon prowl the streets of Wellington searching for people to kill, but they must stay in the flat during the day to avoid sunlight—which is lethal to vampires—and thus have not adapted to