CAS ES 105 Lecture Notes - Lecture 2: Asthenosphere, Abraham Ortelius, Continental Drift
30 Jul 2018
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1596 abraham ortelius talked about continents drifting put together evidence from many fields of science. Francis bacon, ben franklin, antonio snider- pellegrini all had similar ideas and pointed at africa and south america. Edward seuss started to put everything together by looking at marine fossils that were similar on the coasts saw giant fern fossils in different areas maybe they were all together at one point and then were spread out. Contraction hypothesis he thought like an apple, the earth contracted as it got older and the crevices were filled with water the deeper it was, the deeper the ocean was. He said at some point the puzzle pieces were together in the form of. 1960"s - the fit between the edges of continents suggested that they might have drifted the fit was better if you went right off the shore and connected the continental shelves.
