Structure of the Earth discontinuity (a second order discontinuity). The uppermost mantle together with the crust constitutes the lithosphere. The crust-mantle boundary occurs as two physically different events. First, there is a discontinuity in the seismic velocity, which is most commonly known as the Mohorovičić discontinuity or Moho. The cause of the Moho is thought to be a change in rock composition from rocks containing plagioclase feldspar (above) to rocks that contain no feldspars (below). Second, in oceanic crust, there is a chemical discontinuity between ultramafic cumulates and tectonized harzburgites, which has been observed from deep parts of the oceanic crust that have been
Faith in the Earth overflowing virtue of generosity linked inextricably to amor fati and to creativity itself; and faith becomes remaining true to the Earth, and faithful to its unfathomed possibilities. Faith in the Earth "Faith in the Earth" is a concept referred to in the German philosopher Friedrich Nietzsche's mytho-poetic formulation of divinity, "Thus Spoke Zarathustra". A complicated idea with many connotations within its central work, it is the process through which Nietzsche formalizes his idea of amor fati, and most broadly refers to treating the worldly with the same degree of spiritual worship and respect previously given to the divine. It is