Geology 101 - Geology 101 Earth apparently 4.6 billion...

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Geology 101 Earth apparently 4.6 billion years old, arrived at using spiral diagram Chapter 1- Earth System 1) System- as assemblage of interacting components that together comprise a unified whole a. “Deep earth system” – core b. “Sacrificial earth system”- where we are, where evolution happens c. Earths topogrogrophy is measured with respect to sea level i. Mt. Everest- almost 9k meter ii. Typical elevation- 0-1 km iii. Typical depth of ocean- 4-5km iv. Marianas trench 11,033 m d. Science is constantly under revision 2) Surfucial earth system a. Hydrological cycle ( transport of water and heat) Jan 14, 2009 1) Crust = 0-40km (deeper in mountains, shallow in oceans) 2) Mantle: 40-2890km 3) Liquid outer core: 2890-5150km 4) Solid inner core: 5150-6370km I. Asthenosphere – plastic II. Rigid Lithosphere III. Isostacy- tip showing only part of large root Q= C Q. Earths major layers = D Continental Drift Pangaea- one big continent Chapter 2: Alfred Wegener: German Meteorologist – pioneer of the continental drift hypothesis
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