Key

Key 1)         Continental Drift Theory. 1915-Pangea Alfred Wagner played a study situation in this theory. The theory involved South the States and Africa, and Wegners hypothesis was that 200 million years ago, the continents were all unmatched largish enormous continent called Pangea, which after a temporary hookup began to turn over into smaller continents. Two pieces of evidence that put forward this philosophy: the dispersion of fossils among each continent, and the way South the States and Africa view together. Alfred never really explained his theory very well, so therefore, it was not accepted. 2)         Polar wandering Polar wandering was a instruction of lava flow conducted in Europe in the 1950s. The discovery was that charismatic alignment in the iron rich minerals in lava flows of several(predicate) climb ons was be to vary widely. 3)         Continental Shelf vista noticed. mid-sixties The Continental shelf is a gently go down lift extending from the shoreline towards the deep- ocean basin. The continental shelf is located euchre meters down, and the capable is not believed to be perfect, because after a wide condemnation erosion processes modify shorelines.

4) Magnetic Stripes instal on the seafloor. Otherwise known as magnetic reversals. 1963 The kinship between magnetic reversals and seafloor spreading is when a rock is the akin age and distance from the ridge it turns out to have the analogous polarity. In the Atlantic and Pacific oceans, the magnetic stripes found are corresponding to each other. If you want to! get a ripe essay, order it on our website: OrderCustomPaper.com

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