EESA06H3 Lecture Notes - Lecture 7: Great Unconformity, Geologic Time Scale, Geography And Cartography In Medieval Islam
23 Apr 2013
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11th century: persian geologist avicenna (mountains were built over time) Mountain formed after a long series of events predating humans. 11th century: chinese naturalist shen kuo concept of geologic or deep time contrary to popular belief that the earth was young ancient greeks recognized fossils embedded in rocks now on tops of mountains. Marine fossils how did they get there: western geologic theory pre 1800"s. Georges cuvier the idea that earth has been affected in the past by sudden, short-lived violent events, possibly worldwide. Earth: came into conflict with abram werner and diluvialism and catastrophism, thought that the earth was extremely old, charles darwin, charles lyell was a supporter, early ideas of stratigraphy (study of rock layers, fossils, relative age of rocks. James hutton"s theory on unconformity got him thinking about how one event could cause the rocks to be tilted on the bottom and flat on the top.
