GEOL150_week1_2_Origins

GEOL150_week1_2_Origins - GEOL150 Week 1 (thanks to Prof...

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Julien Emile-Geay University of Southern California, Los Angeles Origin and structure of the Earth GEOL150 Week 1 (thanks to Prof Frank Corsetti for many slides)
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Before we talk about the atmosphere, the oceans, and the rest of the climate system. ..
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Let’s see what planet they sit on . .. And where that planet came from.
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4 15 Billion years ago, the Universe started in a very loud inaugural party
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Nucleosynthesis Nuclear fusion in the hot center of stars created heavy elements from the Big Bang leovers
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6 Supernova = Stardust delivery system ;
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Origin of Our Solar System Solar nebula condenses from remnants of past exploded star ( Supernova) Mostly hydrogen and Helium with heavy elements having come from nucleosynthesis in large stars H is concentrated at the center and condenses enough to form our sun Solar nebula rotates as it condenses
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Age of Our Solar System Universe estimated at 15 Ga (1Ga = 1,000,000,000 years) Meteorites date to 4.567 Ga: primordial solar system left over bits from the time of solar system formation (Carbonaceous Chondrite)
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GEOL150_week1_2_Origins - GEOL150 Week 1 (thanks to Prof...

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