EAS 1540 Study Guide - Midterm Guide: North Atlantic Deep Water, Thermocline, Trade Winds
23 Aug 2016
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Stu to know (roughly: universe is 14-15 billion years old, moon was formed by a mars-sized planet hitting the earth and knocking a part cold matter condensed and formed a nuclear fusion reaction. Everything absolutely started inside a boiling hot star o : no oxygen was in the atmosphere to start with, most of the water that lls our oceans came from a steady bombardment of photosynthesis makes oxygen small comets. In 4 billion years the earth and sun will de nitely not be here! We"re halfway through the story of earth, we won"t be here forever. Plate tectonics = a steady accumulation of evidence . T of the continents: alfred wegener & distribution of fossil and mineral belts, extensional faulting sea oor spreading at mid ocean ridges, magnetic anomalies are a proxy measure of geologic time. Each anomaly can be assigned a speci c geologic date.
