Crust (geology) depth, reaching values typically in the range from about to at the boundary with the underlying mantle. The temperature increases by as much as for every kilometer locally in the upper part of the crust, but the geothermal gradient is smaller in deeper crust. The continental crust has an average composition similar to that of andesite. The most abundant minerals in Earth's continental crust are feldspars, which make up about 41% of the crust by weight, followed by quartz at 12%, and pyroxenes at 11%. Continental crust is enriched in incompatible elements compared to the basaltic ocean crust and much
Bones of the Earth the team speculated that dinosaur migration might be similarly controlled by the song of the Earth, the song of tectonic plates shifting in the crust of the planet. And the possibility of the Chicxulub meteor having been so great as to detune the song of the Earth for a decade or a century, deafening the dinosaurs so they could not migrate, causing them to starve. In the end, the evolved avians decide to retroactively remove the time travel science from human hands, thereby rendering all of the events up to that point irrelevant. But, out of the ashes of this