EESA06H3 Lecture 8: Lecture 8.odt
Document Summary
Statigraphy: geology/science where we place rocks in order; the study of layers. One of the first things to do is figure out the relative age (making assumptions comparisons between two different rocks which is younger/older) In the past scientists were good with relative age but now with new sciences absolute age is now possible. Geological history recorded in this complex diagram. Oldest events are recorded by the lowest rocks. Younger tops occur on top of older ones. Oldest layers are always at the bottom. Sediments get deposited on top of older sediments. Ancient greeks recognized fossils embedded in rocks now on tops of mountains. Made the connection that these are marine animals. Puzzled about how they can get trapped in rocks and get elevated above sea-level. Rocks and landscapes result from noah"s flood. Rocks, sediments are all groped together at diluvium (meaning of a flood )
