Two-step approach to 3D gravity inversion: Case study in the State of Utah

PreviousNext No AccessFirst International Meeting for Applied Geoscience & Energy Expanded AbstractsTwo-step approach to 3D gravity inversion: Case study in the State of UtahAuthors: Michael S. ZhdanovMichael JorgensenLe WanMichael S. ZhdanovConsortium for Electromagnetic Modeling and Inversion, University of Utah, and TechnoImagingSearch for more papers by this author, Michael JorgensenConsortium for Electromagnetic Modeling and Inversion, University of Utah, and TechnoImagingSearch for more papers by this author, and Le WanConsortium for Electromagnetic Modeling and Inversion, University of Utah, and TechnoImagingSearch for more papers by this authorhttps://doi.org/10.1190/segam2021-3594481.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractWe present the methodology and the results of 3D inversion of Bouguer gravity anomaly in the Utah State. The inversion of the regional gravity data can contribute in the development of the National Crustal Model (Boyd and Shah, 2018), which is important for natural resource exploration and for earthquake hazard risk assessment (Shah and Boyd, 2018). In this paper, we introduce a two-step approach to gravity inversion. On the first step, we apply the 3D Cauchy-type integral representation of the gravity field to inverting gravity data for depth-to-basement model. On the second step, we use the depth-to-basement model determined on the first step as an a priori constraint for full 3D voxel-type inversion. This approach is illustrated by 3D inversion of Bouguer gravity anomaly in the Utah State.Keywords: gravity, 3D, inversionPermalink: https://doi.org/10.1190/segam2021-3594481.1FiguresReferencesRelatedDetails First International Meeting for Applied Geoscience & Energy Expanded AbstractsISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2021 Pages: 3561 publication data© 2021 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 01 Sep 2021 CITATION INFORMATION Michael S. Zhdanov, Michael Jorgensen, and Le Wan, (2021), "Two-step approach to 3D gravity inversion: Case study in the State of Utah," SEG Technical Program Expanded Abstracts : 916-920. https://doi.org/10.1190/segam2021-3594481.1 Plain-Language Summary Keywordsgravity3DinversionPDF DownloadLoading ...