Crust (geology) crustal rocks formed before 2.5 billion years ago are located in cratons. Such old continental crust and the underlying mantle asthenosphere are less dense than elsewhere in Earth and so are not readily destroyed by subduction. Formation of new continental crust is linked to periods of intense orogeny; these periods coincide with the formation of the supercontinents such as Rodinia, Pangaea and Gondwana. The crust forms in part by aggregation of island arcs including granite and metamorphic fold belts, and it is preserved in part by depletion of the underlying mantle to form buoyant lithospheric mantle. A theoretical protoplanet named
Emilia (given name) Emilia (given name) Emilia is a feminine given name of Romanic origin. The name is found all over Europe and the Americas. The corresponding masculine name is Emil or Emilio. Emilia is also referenced as the Italian form of the English name, Emily. Emilia is a feminine given name derived from "Aemilia", the feminine form of the Latin nomen "Aemilius". The name is likely derived from the same root as the Latin word "aemulus", which means to rival, excel, or emulate, but this may be a folk etymology. Although similar Germanic names like Amalia may appear to be related to