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《电法勘探原》课件PPTThis presentationprovides acomprehensive overviewof ElectricalGeophysics,including theexploration methods,applications,challenges,and futuredevelopments inthe field.Introduction toElectricalGeophysics1What isElectrical GeophysicsLearnabout the principles andtechniques used to explorethe Earthssubsurfaceusing electricalproperties.2ApplicationsDiscover thewide rangeof areaswhere Electrical Geophysics playsa crucialrole,from mineralexploration toenvironmental studiesand engineeringinvestigations.3Theory andInstrumentsGet insights into thetheory behindElectricalGeophysicsand theequipmentused tocollect andinterpret data.Formation ofthe EarthsElectric FieldNatural ElectricFieldExplore how the Earths electric fieldis formedand itsimportance inelectrical geophysics.Factors AffectingElectric FieldUnderstandthe variousfactors andprocesses thatinfluence theEarths electricfield.ElectricFieldMeasurementsLearn about the methodsand instrumentsused tomeasure theEarthselectricfield.Basic ElectricalProperties ofRocksand Soils1Conductivity andResistivityDiscover thefundamental electricalproperties ofrocks andsoils andhowthey influencegeophysical surveys.2Polarization andChargeabilityLearn about the phenomenaof polarizationand chargeabilityand theireffectson electrical geophysics.3Dielectric PermittivityUnderstandthe conceptof dielectricpermittivity andits relevanceinelectrical geophysicalmeasurements.Electrical ConductivityMethodsResistivity SurveyInduced PolarizationSelf-Potential MethodExplore the techniqueof Learnabout theinduced Discoverhowtheself-resistivity surveyfor polarizationmethod forpotential methoddetectsmapping subsurfaceidentifying mineral deposits naturalelectrical potentialsconductivityvariations.and characterizinggeologic toidentify subsurfacematerials.features.Electromagnetic MethodsTimeDomain Electromagnetic Method Understandtheprinciplesandapplications oftime domainelectromagneticmethod formappingsubsurface conductivity.Frequency DomainElectromagneticMethodExplore thefrequency domainelectromagneticmethod formeasuringsubsurface conductivityvariations.Ground PenetratingRadar Learnabouttheground penetratingradartechnique forimaging subsurfacestructuresusing electromagneticwaves.Induced PolarizationMethods1IP TheoryGaininsightsintothe theoriesunderlying theinduced polarizationmethod.2Applications inMineral ExplorationDiscoverhow induced polarization is used to detect andcharacterize mineraldeposits.3Advantages andLimitationsUnderstand thestrengths andweaknesses ofinducedpolarizationsurveys.Data Acquisitionand Interpretation1Data CollectionLearnaboutthetechniques andinstrumentsusedtocollectData Processing2electrical geophysical data.Discover thesteps involvedinprocessing andinterpreting3Interpretation Methodselectrical geophysicaldata.Explorethedifferentmethodologies employedforinterpreting electrical geophysicaldata.Applications inMineralExplorationDetecting MineralDepositsLearn howelectricalgeophysicsisusedtodetectand mapmineraldepositsunderground.Characterizing OreBodiesDiscover howelectricalgeophysicalmethods canprovide valuableinformationabout thecharacteristics ofore bodies.Mapping GeologicStructuresUnderstand howelectricalgeophysicaldata isutilized tomap subsurfacegeologicstructures.。