NATS 1750 Chapter Notes - Chapter 3: Continental Crust, Thermal Energy, Paleomagnetism
22 Dec 2017
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This supercontinent he called pangea, later broke into smaller continents by drifting apart and moving to their now present positions this proposal was know as the continental drift. T of continents- shape of continents look like a puzzle- wegener concluded that it was not a coincidence and that they once t together. Tropical coals,tropical reefs,subtropical deserts,subtropical evaporites climate belts can be indicated by distinct rock types and therefore according to the map of pangaea make sense: The distribution of fossils- identical fossils found on widely separated landmasses. These organisms could not have crossed an ocean. : matching geological units- rock assemblages match across the atlantic, geologic structures rock types and rock ages were similar between areas such as east coast south america and west coast africa. Thursday, december 21, 2017: mountain belts connect across the atlantic, wegener demonstrated that not only did coastlines of continents match so did the rocks adjacent to the coastlines.
