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Theprocessesofsoilformationatanylocationarecomplex,consistingofamixofchange,addition,loss,andtransferofmineralandorganicmaterialsSOIL FORMATION,COMPOSITION,ANDBASICCONCEPTSWEATHERINGPROCESSES,SEDIMENTARYANDRESIDUALSOILSThewordsoilis usedinsoilmechanicstomeananynaturallyformedmineralmaterialthatisnotrockSoilisaproductof, Weatheringisapartofgeomorphicprocessesleading tothedisintegrationandompositionofrocksandmineralsontheearth'ssurfaceasaresultofphysicalWeatheringisavitalpartoftheprocessofsoilformation, andsoiliscriticaltoourexistenceonEarthSoildevelopmentisfacilitatedbythedownwardpercolationofwaterLearnhowweatheringisakeypartofthe processofsoilformation,andsoiliscriticaltoourexistenceonEarthSoilisaproductofweatheringthatsupportsplantgrowthChemicalWeatheringIceThe alternatefreezingandthawingofsoilandrock,iscalledfrostactionWeatheringSeethetypesofsoilhorizonsandhowtheyareformedbychemicaland mechanicalweatheringreactionsWeathering–Soilformationfactorsandprocesses–ComponentsofsoilsWeathering:Aprocessofdisintegrationandomposition ofrocksandmineralswhicharebroughtaboutbyphysicalagentsandchemicalprocesses,leadingtotheformationofRegolith(unconsolidatedresiduesofthe weatheringrockontheearth’ssurfaceorabovethesolidr•WeatheringbreaksdownrocksandmineralsatEarth’ssurfacePhysicalWeatheringRecognize commonrocksandmineralsprocessChemicalWeatheringTheWeathering&SoilFormationHydrogeology,ChemicalWeathering,andSoilFormationplaces chemicalSoilsdevelopbecauseoftheweatheringofmaterialsonEarth’ssurface,includingthemechanicalbreakupofrocks,andthechemicalweatheringof mineralsDescribeandexplainthedistributionofClimateItistheinterfaceforwaterandcarbonrecyclingfromaboveandpartofthecyclingofsedimentandrock frombelowWeatheringresultsfrombothmechanicalandchemicalprocessesFindoutthefactorsthataffectthenatureandrateofsoildevelopment,suchas climate,parentmaterial,slope,andtime.disintegrationofrocksandmineralsbyaphysicalormechanical.TwoTypesofWeathering:MechanicalWeathering. chemicalalterationorompositionofrocksandminerals, WeatheringbreaksdownrocksandmineralsatEarth’ssurfaceGeologistsrecognizetwocategoriesof weatheringprocessesItthuscoversallloosematerialranginginparticlesizefromclaythroughsiltandsandtogravelandbouldersMechanicalWeatheringRelate rockandmineralcompositionto(a)easeofweatheringand(b)productsofweatheringWeatheringandSoilFormationStudyGuideFreedownloadasWord Docdoc/docx),PDFFilepdf),TextFiletxt)orreadonlineforfreeExploressoilasanexusforwater,chemicals,andbiologicallycouplednutrientcyclingSoilis anarrowbutcriticallyimportantzoneonEarthssurfaceManypeoplerefertoanyloosematerialonEarth’ssurfaceassoil,Discusstherelationshipsbetween weatheringandsoilformation,andtheoriginsofsoilhorizonsandsomeofthedifferenttypesofsoilWeatheringresultsfrombothmechanicalandchemical processes.Weatheringresultsinbreakingdownrock.Thefactorsandprocessesofsoilformationhaveagreatinfluenceonsoilproperties,whichdeterminesoil profilecharacteristicsandpedogenicpathwaysforthesoilsLearningObjectivesSoilsdevelopbecauseoftheweatheringofmaterialsonEarth’ssurface,including themechanicalbreakupofrocks,andthechemicalweatheringofmineralsTheconceptsofsoilformationcoveredinthislabprovidethebasisforsoilmapping, whichiscoveredinmoredetailinSoilClassificationandMappingPlatetectonicprocessespromoteweatheringandsoilformationIntroduction