{"title":"Two-Dimensional Inversion of Magnetotelluric Data when Studying Three-Dimensional Media","authors":"D. D. Popov, P. Yu. Pushkarev","doi":"10.1134/S1069351325700077","DOIUrl":null,"url":null,"abstract":"<p><b>Abstract</b>—A three-dimensional geoelectric model of the tectonosphere has been constructed, containing typical geoelectric heterogeneities at three structural levels: uplift and subsidence of the roof of the basement, conductive prisms in the consolidated crust, and asthenospheric uplift in the upper mantle. Synthetic magnetotelluric data were calculated, and their sensitivity to geoelectric structures was analyzed. A two-dimensional smoothing inversion of synthetic data was performed along two perpendicular profiles. Despite significant three-dimensional effects, the obtained sections quite accurately reconstruct the position of the roof of the basement, obtain rough images of crustal structures, and poorly resolve the structure of the mantle. The influence of random noise of different levels on the inversion results is assessed. In the future, it is planned to perform three-dimensional inversion of synthetic data.</p>","PeriodicalId":602,"journal":{"name":"Izvestiya, Physics of the Solid Earth","volume":"61 1","pages":"13 - 28"},"PeriodicalIF":1.0000,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Izvestiya, Physics of the Solid Earth","FirstCategoryId":"89","ListUrlMain":"https://link.springer.com/article/10.1134/S1069351325700077","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
引用次数: 0
Abstract—A three-dimensional geoelectric model of the tectonosphere has been constructed, containing typical geoelectric heterogeneities at three structural levels: uplift and subsidence of the roof of the basement, conductive prisms in the consolidated crust, and asthenospheric uplift in the upper mantle. Synthetic magnetotelluric data were calculated, and their sensitivity to geoelectric structures was analyzed. A two-dimensional smoothing inversion of synthetic data was performed along two perpendicular profiles. Despite significant three-dimensional effects, the obtained sections quite accurately reconstruct the position of the roof of the basement, obtain rough images of crustal structures, and poorly resolve the structure of the mantle. The influence of random noise of different levels on the inversion results is assessed. In the future, it is planned to perform three-dimensional inversion of synthetic data.
期刊介绍：
Izvestiya, Physics of the Solid Earth is an international peer reviewed journal that publishes results of original theoretical and experimental research in relevant areas of the physics of the Earth''s interior and applied geophysics. The journal welcomes manuscripts from all countries in the English or Russian language.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
