岩石与岩石圈循环

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1、TheRockCycleThinkingaboutrelationshipsamongthemajorrockgroupsMajorRockGroupsIgneousFormedfromamelt(moltenrock)Plutonic(intrusive):slowcoolingandcrystallizationVolcanic(extrusion):quickcoolingatthesurfaceSedimentaryFormedattheEarth’ssurfaceClastic(MineralFra

2、gmentsorgrains,clays)Chemical(crystallinechemical/biochemicalprecipitates)MetamorphicChangedbypressure,temperatureandfluids.2Fig.2.9MAGMA3MAGMACrystallizationIGNEOUS4MAGMAIGNEOUSPlutonicCrystallization5MAGMAVolcanicIGNEOUSPlutonicCrystallization6MAGMAVolcan

3、icIGNEOUSPlutonicUpliftCrystallizationWeathering7MAGMAVolcanicIGNEOUSPlutonicSEDIMENTUpliftCrystallizationWeatheringSEDIMENT8MAGMAVolcanicIGNEOUSPlutonicSEDIMENTSEDIMENTARYUpliftCrystallizationWeatheringErosionTransportDeposition9MAGMAVolcanicIGNEOUSPlutoni

4、cSEDIMENTSEDIMENTARYUpliftCrystallizationWeatheringErosionTransportDeposition10MAGMAVolcanicIGNEOUSPlutonicSEDIMENTSEDIMENTARYMETAMORPHICUpliftBurialIncreasedP&TCrystallizationWeatheringErosionTransportDeposition11MAGMAVolcanicIGNEOUSPlutonicSEDIMENTSEDIMEN

5、TARYMETAMORPHICUpliftBurialIncreasedP&TMeltingCrystallizationWeatheringErosionTransportDepositionCanyouseeanyshortcuts?12MAGMAVolcanicIGNEOUSPlutonicSEDIMENTSEDIMENTARYMETAMORPHICUpliftBurialIncreasedP&TMeltingCrystallizationWeatheringErosionTransportDeposi

6、tion13TherockcycledemonstratestherelationshipsamongthethreemajorrockgroupsItispoweredbytheinteriorheatoftheEarthAswellasearth’smomentumand…TheenergyfromthesunItinvolvesprocessesontheEarth’ssurfaceaswellastheEarth’sinteriorItconnectsthe“hydrologiccycle”witht

7、he“tectoniccycle”.InConclusion…1415MAGMAVolcanicIGNEOUSPlutonicSEDIMENTSEDIMENTARYMETAMORPHICUpliftBurialIncreasedP&TMeltingCrystallizationWeatheringErosionTransportDeposition16