Feldspar (including electrical insulators, sanitaryware, pottery, tableware, and tile) and other uses, such as fillers, accounted for the remainder. In earth sciences and archaeology, feldspars are used for K-Ar dating, argon-argon dating, and luminescence dating. In October 2012, the Mars Curiosity rover analyzed a rock that turned out to have a high feldspar content. Feldspar Feldspars (KAlSiO – NaAlSiO – CaAlSiO) are a group of rock-forming tectosilicate minerals that make up about 41% of the Earth's continental crust by weight. Feldspars crystallize from magma as veins in both intrusive and extrusive igneous rocks and are also present in many types of
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