EESA06H3 Lecture Notes - Lecture 7: Principle Of Faunal Succession, Metamorphism, Hadean
Document Summary
Know that the earth is 4. 56 billion years old. Avicenna didn"t think that mountains had always been there; thought they had been built over time. Shen kuo thought that the earth was very old. Ancient greeks looked at rock fossils in mountains and found that they were marine fossils; didn"t make sense because mountains were much above land. Earth history was heavily based on christian religion. Catastrophism- earth stays pretty much the same but every so often you have a huge catastrophe or disaster that effects a very large area of the world; comes along and changes things (ie. noah"s flood) Hutton found that rocks on the bottom were tilted and rocks on the top were flat-lying; an example of an unconformity. Hutton didn"t think that all rocks came out of the ocean; thought that granite came from cooled magma. Huttons uniformitarianism- realized that there are small, constant changes, instead of catastrophism.
