ASTR 20 Lecture Notes - Lecture 13: Bernard Palissy, Gradualism, Panthalassa
Document Summary
Large co2, changes which can affect atmospheric and ocean chemistry. Fossil record shows some 26-27 million year period of some extinction. External disruption changes the ecosystem survival rules and therefore changes. Random large scales catastrophes can reset both the evolutionary clock and the evolutionary pathways evolutionary timescale. Plato thought that a giant cavern inside the earth replenishes flowing water. Aristotle explained the continuous resupply of rivers by saving there was condensation of atmospheric vapor inside caves. If the fountains and the rivers come from the sea their waters would be salty. Palissy believed the earth was much older than 6,000 years based on his observations that rain, wind, and tides were the cause for much of the present day appearance of the earth. Secondary rock attributed to the flood. Demonstrated that hadrian"s wall was built by romans and that 1500 years there was no change. Thus he suspected the earth was much older than 6000 years old.
