CAS BI 107 Lecture Notes - Lecture 2: Siccar Point, Transposable Element, Uniformitarianism
18 Sep 2015
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Carolus linnaeus: taxonomy, god creates, linnaeus arranges , binomial nomenclature. Believed the diversity of life was a divine creation with no extinction. Repopulation of an area occurred by migrating surviving species, not through evolution. Every species died out to be replaced by newly formed ones. George louis de buffon: believed the earth broke off from the sun. Cooling would have taken about 70,000 years, meaning that there has been change over time. Nicolaus steno: observed younger rocks lying on top of older rocks. William smith: british canal surveyor, producing the first detailed geological map. Heat within the earth leads to crust expansion and move layers of rock that tilt, fold, and deform, which takes time. Same slow forces that shaped the earth are still working today. Mt etna in italy has shown growth from hundreds or thousands of eruptions, yet it still sits on top of limestone with fossils of modern-looking animals. Jean baptiste lamarck: inheritance of acquired characteristics.
