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,
Call of Cthulhu: Dark Corners of the Earth of "Call of Cthulhu: Dark Corners of the Earth" was a commercial bomb, with sales slightly above 5,000 units by the end of 2005. Eurogamer's Kristan Reed called it among "the most disappointing" commercial performances of an Xbox game that year, and noted that it had been released "right in the thick of a busy release period to zero fanfare." "Call of Cthulhu: Dark Corners of the Earth" received generally favorable reviews, but was also often criticized for being buggy and inaccessible for many players because of its high difficulty. GameSpy ranked it as the tenth best game of E3