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Department
Geology
Course
GEOL 1003
Professor
All Professors
Semester
Spring

Description
Chapter10PaleotemperatureOxygenisotopecompositionsColderTemperatureWarmerWhenthenumberratiobecomesbiggerthetemperaturedecreasesoInthelast50millionyearstheoceantemperaturehasgraduallybeenincreasingoindicatestheformationofapolaricecapoCompositionsShellCaCO3WaterHO2oTwodeterminingfactors1TemperatureduringCaCOprecipitation32TheoxygenisotopecompositionofwateroSohowdoweknowtheexacttemperature1618WeusetoOandOratioDifferentplacesdifferentaltitudestheratiochangesoTheevidencewillbepreservedinteethoforganismsintheenamelInthelast1millionyeartheforaminiferaoFluctuationsofoxygenisotoperatiosintheskeletonsofforamsresultingfromtheexpansionandcontractionofcontinentalglaciersduringthepast1millionyearsPartIMaterialsProcessesandPrinciplesEarthasasystemMineralsandRocksThediversityoflifeESedimentaryCEPlateTectonicsMajorchemicalcyclesWhatkindofstatewasEarthsatmosphereininthepastDegassingLateVeneerVolatilesHydrousOHbondAslongasplanetshavethismineralhumanswillbeabletosurviveonitOriginofContinentsDegassingandcondensationarewhatcreatedearthswaterIntheverybeginningtherewasnodifferencebetweenoceanicandcontinentalcrustSowhatformedthecontinentalcrustFelsicvolcanicrocksinIcelandanalogfortheformationofearlyprotocontinentFelsicvsMaficFelsicRichinmagnesiumandironlighterincolorContinentalcrustExGraniteMaficDarkerincolorOceaniccrustExBasaltCratonshieldofcontinentalcrustRightnowwehavelessthan20ThesizeofacratonhastodealwiththecoolingofearththelongeramountoftimethecratoncansurviveViscosityisdeterminedbythetemperature
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