Key

Key 1)         Continental Drift Theory. 1915-Pangea Alfred Wagner vie a major lieu in this theory. The theory problematical S emergeh America and Africa, and Wegners conjecture was that 200 million historic period ago, the continents were all one big enormous continent called Pangea, which later a while began to diverge over into smaller continents. 2 pieces of evidence that support this philosophy: the dispersion of fossils among each continent, and the way of life South America and Africa mass together. Alfred never really explained his theory very well, so therefore, it was not accepted. 2)          frozen wandering Polar wandering was a focusing of lava flow conducted in atomic number 63 in the 1950s. The discovery was that attractive alignment in the weight come on rich minerals in lava flows of several(predicate) spring up ons was found to vary widely. 3)         Continental Shelf Fit noticed. sixties The Continental shelf is a gently submerged lift extending from the shoreline towards the deep- ocean basin. The continental shelf is located 500 meters down, and the competent is not believed to be perfect, because afterwards a long swearing erosion processes modify shorelines.

4) charismatic St ripe(p)s found on the seafloor. Otherwise known as magnetized reversals. 1963 The relationship mingled with magnetic reversals and seafloor spreading is when a rock is the same develop and distance from the ridge it turns out to have the same polarity. In the Atlantic and Pacific oceans, the magnetic stripes found atomic number 18 corresponding to each other. If you inadequacy to get a ripe essay, order it on our website: Ordercustompaper.com

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