GLGY 209 Chapter Notes - Chapter 11: Relative Dating
4 May 2019
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Ancient times fossils any object that could have been dug up from the earth. Coal birth of science need for coal. Duke of tuscany elevated culture wanted to study the territory of. Study neighbourhoods of tuscany offers funding, solved problem of need for coal. Steno observed that layers can be grouped into two sequences. One is tougher than the other iron oxides. 3 important today: principle of layer superposition oldest layer is at the base of the succession, younger occupies higher positions. Steno noticed particles settle at the bottom of the basin, as they settle a new layer is formed. Known in middle east 500 years before: principle of successive layer formation layers in their mass present fossils. Bodies of fossils only have hard body parts. If the soft body parts are not preserved there was enough time for the organism to breakdown before it was buried by the sediment.
