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Final Exam Review Sheet Filled In (97% in the course

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Louisiana State University
GEOL 1001

Geology 1001Final Exam Review Sheet CompleteFall 2013This review sheet is to help you study I reserve the right to add to this list at any time between now and the final Highlighted sections are things I have added since I posted the st1 sheetChapter 1 The Earth in ContextWhen did the Big Bang occur o137 billion years agoMain points of the Big BangoThe universe began with all matter and energy as 1 pointoWhat chemical elements formed right awayFirst instant Universe was small hot dense then Hydrogen formed After 3 minutes hydrogen fused to make HeliumAccumulation into nebulae patchy cloudsoHow did we get the heavier elementsStellar nucleosynthesis Life cycle of stars92 naturally occurring elements formed oStellar wing stream of atomsoLighter than Fe FusionoHeavier than Fe SupernovaElement factories constantly factoring larger atoms out of smalled atoms What are sources of heat in eartho 1 Energy left over from the formation of Eatho2 Decay of radioactive minerals When did the Earth formo46 billion years agoWhat are the Earths layers What are they made of What are their properties How do we know what the different layers are use of seismic waveseg which waves tell us about solid liquid and gasoCrustContinental Crust2535km thickGranite but also consists of many rocksSolid Less dense than oceanic crustOceanic Crust710km thcickConsist of Basalt and GabbrooMantleLargest part of EarthConsist of ultramafic rock dark and dense rockS and p wavesTemp of mantle increases with depth Warmer regions less dense cooler regions more denseooCoreIron alloyInner core solid FeOutercore liquidS and p wavesChapter 2 Plate Tectonics You will NOT find everything you need to know about plate boundaries in this chapter Know your plate boundaries Know what happens where Divergent boundaries Continental rifts and Midocean ridgesMakes new crust New oceanic lithosphere formsNormal faultsoMidOcean RidgesOceanic crust form through seafloor spreading hot asthenosphere melts motlen rock Magma forms and rises then accumulates in rigde magma chamberAs plates move away from the MOR axis they cool and the lithospheric mantle forms and thickensIntrusive and ExtrusiveFelsic rock SiO2 richSedimentary rocklimestone chertbiochemical rocksDecompression less pressureSegmented denser thin crustMetamorphic hydrothermaloContinental RiftA linear belt in which continental lithosphere pulls apartStretches horizontally and thins verticallyFault NormalIgneous rock Basalt Rhyolite and andesite intermediateMelting Because crust thinsMetamorphismoKnow the igneous rocks type of melting type of metamorphism style of deformation all characteristics of the boundaries Could you draw a cross
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