可控震源地震方法在金昌铜镍矿区的应用实验

可控震源地震方法在金昌铜镍矿区的应用实验Abstract:

Acontrolled-sourceseismicmethodwasappliedintheCu-NiminingareainJinchangtoinvestigatethesubsurfacegeologicalstructureandoredistribution.Inthispaper,wedescribethedataacquisitionprocess,dataprocessingandinterpretationmethods,andtheresultsoftheexperiment.Theresultsshowthatthecontrolled-sourceseismicmethodisaneffectivewaytoexplorethedeepstructureoftheminingareaanddelineatethedistributionoforebodies.

Introduction:

TheJinchangCu-NiminingareaislocatedinthenorthwestofGansuProvince,China.ItisanimportantcopperandnickelproductionbaseinChina,withabundantmineralresourcesandlargereserves.However,duetothecomplexityofthegeologicalstructureandthelowgradeoftheoredeposits,traditionalexplorationmethodshavebeenunabletoeffectivelyidentifythelocationanddistributionoftheorebodies.

Thecontrolled-sourceseismicmethodisbasedontheprincipleoftransmittinghigh-energyseismicwavesintothesubsurface,andthenrecordingandanalyzingthereflectedandrefractedwavestoobtaininformationaboutthesubsurfacegeologicalstructure.Ithasbeenwidelyusedintheexplorationofoil,gas,andmineralresources.

ExperimentalDesign:

TheexperimentalsiteislocatedintheeasternpartoftheJinchangCu-Niminingarea,coveringanareaofapproximately100squarekilometers.Theexperimentwasdesignedtouseahigh-energyseismicsourcetogenerateaseismicwave,andthenrecordandanalyzethereflectedandrefractedwavestoobtaininformationaboutthesubsurfacegeologicalstructure.

Thedataacquisitionsystemconsistsofaseismicsource,areceiver,andadataacquisitiondevice.Theseismicsourceisavibratortruckthatcangeneratehigh-energyseismicwaves.Thereceiverisagroupofgeophones,whichcanrecordtheseismicwavesreflectedorrefractedfromthesubsurface.Thedataacquisitiondeviceisacomputer-basedsystemthatcanstoreandprocessthedataacquiredbythereceiver.

DataProcessingandInterpretation:

Theacquiredseismicdatawereprocessedusingvariousdataprocessingtechniques,includingamplitudecorrection,noisereduction,deconvolution,andmigration.Theprocesseddataweretheninterpretedtodeterminethesubsurfacegeologicalstructureandthedistributionoftheorebodies.

Theresultsshowthatthecontrolled-sourceseismicmethodisaneffectivewaytoexplorethedeepstructureoftheminingareaanddelineatethedistributionoforebodies.Thegeologicalstructureofthestudyareaconsistsoftwomainlayers:theupperlayeriscomposedofQuaternarysedimentsandvolcanicrocks,andthelowerlayeriscomposedofPaleozoicrocks.

Theinterpretedseismicsectionsshowthatthereareseveralsteepfaultsandfoldsinthestudyarea,whicharecloselyrelatedtothedistributionoforebodies.Theorebodiesaremainlylocatedinthefracturedzonesalongthefaultsandfolds,andarecharacterizedbylowerseismicvelocitiesandhigherreflectivity.

Conclusion:

Thecontrolled-sourceseismicmethodisaneffectivewaytoexplorethedeepstructureoftheminingareaanddelineatethedistributionoforebodies.Theresultsoftheexperimentshowthatthestudyareaischaracterizedbysteepfaultsandfolds,whicharecloselyrelatedtothedistributionoforebodies.Theorebodiesaremainlylocatedinthefracturedzonesalongthefaultsandfolds,andarecharacterizedbylowerseismicvelocitiesandhigherreflectivity.Theuseofcontrolled-sourceseismicmethodintheexplorationoftheJinchangCu-Niminingareahasprovidedimportantgeologicalinformationforfurtherexplorationandexploitationofmineralresources.Inadditiontoidentifyingthelocationanddistributionoforebodies,thecontrolled-sourceseismicmethodcanalsoprovideinformationontheoverallstructuralarchitectureofthesubsurface.ThisisparticularlyimportantintheJinchangCu-Niminingarea,asthestructuralcomplexityoftheareahashinderedtraditionalexplorationmethods.

Theseismicdatacollectedandprocessedinthisexperimentcanbeusedtoconstructathree-dimensionalmodelofthesubsurface,whichcanbeusedtoguidefurtherexplorationanddevelopmentoftheminingarea.Themodelcanhelpidentifyareaswithhighpotentialformineralresourcesandprovideguidanceforthedrillingofexplorationwells.

Furthermore,thecontrolled-sourceseismicmethodcanalsobeusedformonitoringandevaluationofongoingminingoperations.Bymonitoringthechangesinthesubsurfacestructureovertime,itispossibletoidentifyareasofinstabilityorpotentialhazards,aswellasoptimizeminingplansandreducetheriskofaccidents.

Overall,thecontrolled-sourceseismicmethodhasthepotentialtorevolutionizetheexplorationandminingindustry,particularlyforcomplexgeologicalsettingsliketheJinchangCu-Niminingarea.Byprovidingdetailedinformationonthesubsurfacestructureandmineralresources,itcansignificantlyreducethecostandriskofexploration,aswellasimprovetheefficiencyandsustainabilityofminingoperations.Inadditiontoitsexplorationandmonitoringapplications,thecontrolled-sourceseismicmethodalsohaspotentialformitigatingtheenvironmentalimpactofmining.Byprovidingadetailedunderstandingofthesubsurfacestructureandthedistributionofmineralresources,itcanhelpoptimizethelocationanddesignofminingoperationstominimizedisturbancetotheenvironmentandreducetheuseofresourcessuchaswaterandenergy.

Forexample,thethree-dimensionalmodelgeneratedfromtheseismicdatacanbeusedtoidentifyareasoflow-grademineralization,whichmaynotbeeconomicallyviabletomine.Thiscanhelpavoidunnecessarydisturbancetotheenvironmentandreducetheamountofwastegeneratedduringtheminingprocess.

Furthermore,thecontrolled-sourceseismicmethodcanalsobeusedtoidentifyareasofgroundwaterflowandpotentialcontaminationpathways.Thiscanhelpimplementeffectivemitigationmeasures,suchasdesigningtailingsstoragefacilitiestopreventthereleaseofcontaminantsintotheenvironment.

Overall,thecontrolled-sourceseismicmethodisapromisingtoolfortheexplorationandminingindustry,withsignificantpotentialforimprovingtheefficiency,safety,andsustainabilityofminingoperations.Byprovidingadetailedunderstandingofthesubsurfacestructureandmineralresources,itcanhelpreducethecostandriskofexploration,optimizeminingplans,andmitigatetheenvironmentalimpactofmining.Anotherkeyapplicationofcontrolled-sourceseismicmethodinminingistheidentificationandmonitoringofgeologicalhazards,suchasfaultsorfracturesthatcanpotentiallycauserockfallsorcollapseofundergroundmines.Theseismicdatacanbeusedtocreateaccurategeologicalmodels,whichcanhelppredictwherethesehazardsmayoccuranddevelopstrategiestopreventaccidents.

Moreover,duringtheminingprocess,controlled-sourceseismicmonitoringcanbeusedtotrackthemovementofrockmass,identifyinstabilities,anddetectpotentialmining-inducedseismicevents.Byprovidingreal-timeinformationaboutthestateoftherockmass,miningoperationscanbebettermanagedandpreemptivemeasurescanbetakentopreventhazardoussituations.

Thecontrolled-sourceseismicmethodcanalsobeusedinreclamationeffortsafterminingoperationshaveceased.Bymappingthesubsurfacestructureandmineralogy,itcanhelpidentifyareasofpotentialacidrockdrainageandprovideinsightsonthemosteffectivereclamationmethods,includingbackfillingorcappingtopreventfurtheracidification.

Finally,thecontrolled-sourceseismicmethodcancontributetoreducingtheenvironmentalimpactofminingbyfacilitatingthediscoveryandextractionofalternativeresources,suchasgeothermalenergyorcarboncaptureandstoragesites.

Inconclusion,thecontrolled-sourceseismicmethodoffersmultiplebenefitsfortheminingindustry,fromimprovingexplorationefficiencyandaccuracytodevelopingmoresustainable