9-6 - Memorize slide 7 on introduction to geologic time...

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Missed the beginning of class look at notes online know the slides 9-11 he will have us replicate the pie image of the earth's layers Lithospheric mantle Know this (Slide 11-13) Two ways to view geologic time Relative time Older vs younger placed in order Absolute Time "120 Ma" (Ma = million years; also m.y. or mybp) The Geologic time scale (relative time) eons, eras, periods, epochs major divisions based on biologic events Eventually we will need to memorize eras Don't memorize slide 2
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Unformatted text preview: Memorize slide 7 on introduction to geologic time Plate Tectonics Wegener postulated pangea continents plow through ocean crust: continental Drift Occum's Razor The simplest solution is the one you should choose also known as the principe of parsimony Two Truisms in Science Correlattion without Causation is not proof ie correlating coastlines of south america and africa without a reason why they were once one continent...
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