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2022, 41(1) 186-197 DOI:
ISSN: 1004-5589 CN: 22-1111/P |
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Joint probability tomo graphy for gravity and its gradiometry data based on strata-source potential field |
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LINTao,ZENGZhaofa,YUPing,ZHOUShuai,JIAOJia |
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CollegeofGeoexplorationScienceandTechnology,JilinUniversity,Changchun130026,Chin |
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Abstract:
Inordertoimproveverticalresolutionofjointimagingforgravityandgravitygradiometrydata,the authorsproposeajointprobabilitytomographymethodbasedonstratasourcepotentialfield.Toreflectthespatial distributioncharacteristicsofgeologicalbodiesinstrataofdifferentdepths,themeanfilteringmethodandthecuttingseparationmethodareusedtoseparatepotentialfieldanomalies,andthestratasourcegravityandgravitygradiometrydataofdifferentdepthsareobtainedbythedownwardcontinuationmethod,onwhichtheprobabilitytomographyofstratasourcegravityanditsgradiometrydataisachieved.Applyingthemethodtoacombinedmodelof multiplecubes,itenablesfastimagingonfielddatainstrataofdifferentdepthswithhigherverticalresolutionthan conventionalprobabilitytomographymethods.ThemethodisalsoappliedtothemeasureddataoftheHumblesalt dome.Theimagingresultshowsthemethodcaneffectivelycarryoutthethreedimensionalportrayalofthespatial distributioncharacteristicsofthesaltdome. |
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Keywords:
gravitygradiometry
inversion
probabilitytomograph
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Received Revised Online: |
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