EESA06H3 Quiz: Lecture 1 - used for quiz 1
20 Jan 2012
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Document Summary
Formation of planet earth: 4500 million years before present. Magnetic stripes on the ocean floor and wander paths for continents 1965 fred. Mid-ocean ridges and hot spots: 1965 tuzo wilson. Plate tectonics and wilson cycle: 1967 tuzo wilson. Arrows=direction movement and velocity=the speed that the plates are moving. Role of geoscience: conducting research into planet earth to secure resources for our future. The law of superposition : anything in the surface is the youngest; anything in the deep is older but not always the case, may be turn upside down. Precambrian (grey-layer1): rocks that are more than 6 billion years. Central ghess belt, central metasedimentary belt: old highly deformed rocks. Grenville mountain: bigger than himalaya 1. 5billion years ago. Erratics =wondering rocks: people wondering how they got here. Go through first: glacial - sedimentary - canadian shield. Layer1: canadian shield (less than 1 billion years) Iceland: volcanos, glacial, how glacials move the sediment around.
