earth’s crust test prep - wikispaces

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1、Earth’sCrustTestPrepAccordingtotheplatetectonicstheory,thePeru-ChileTrenchandtheAndesMountainsformedalongthewestcoastofSouthAmericabecausetheSouthAmericanPlate1collidedwiththeNazcaPlate2collidedwiththeNorthAmericanPlate3slidawayfromtheNazcaPlate4slidawayfromtheNorthAmericanPlateBaseyouransw

2、erstothefollowingtwoquestionsonthecrosssectionbelow,whichshowsaportionofEarth’scrustanduppermantlenearamid-oceanridge.Ifthecrustsymbolrepresentsbasaltwithnormalmagneticpolarity,whatdoesthecrustsymbolmostlikelyrepresent?1igneousrockwithnormalmagneticpolarity2igneousrockwithreversedmagneticpo

3、larity3sedimentaryrockwithnormalmagneticpolarity4sedimentaryrockwithreversedmagneticpolarityThegeologicalfeaturesoftheoceanfloorinthisregionresultedfrom1collidingplatesinthelithosphere2sinkingironandmagnesiuminthelithosphere3coolertemperaturesinthemantle4risingconvectioncurrentsinthemantleB

4、aseyouranswerstothefollowingtwoquestionsonthediagrambelow,whichrepresentsseismicstationsA,B,andC.Thedistancefromeachstationtoanearthquake’sepicenterisplotted.TheP-waveofanearthquakeoriginating2,600kilometersfromseismicstationAarrivedat5:24:45a.m.WhatwasthearrivaltimeoftheS-wavefromthesameea

5、rthquake?(1)1:24:45a.m.(2)5:21:05a.m.(3)5:28:45a.m.(4)9:24:05a.m.Theepicenterisclosesttopoint(1)D(2)E(3)F(4)GWhichlandscaperegionprobablyresultedfromtheerosionoffaultedrocklayers?BaseyouranswerstothefollowingquestionusingtheEarthScienceReferenceTables,themapbelow,andyourknowledgeofEarthscie

6、nce.LettersAthroughFarelocationsonEarth’ssurface.Whichlocationisclosesttoadivergentplateboundaryatanoceanicridge?(1)A(2)B(3)C(4)EBaseyouranswerstothefollowing5questionsontheEarthScienceReferenceTables,themapbelow,andyourknowledgeofEarthscience.Themapshowspartoftheearthquakedamagefieldthatre

7、sultedfromtheearthquakethatoccurredinNorthridge,insouthernCalifornia,inJanuary1994.Severalsitesassociatedwiththeearthquakeandearthquakedamageareshown.Whichsurfacelocationhadtheleastdamage?(1)R(2)B(3)E(4)FThisearthquakeprovidesevidencefortheexistenceof1Ea