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- W3044850538 abstract "Geophysical data inversion is a tool, which can be used to recover the subsurface distribution of physical properties from field data. Each type of geophysical data can be inverted using one or more inversion algorithms. In this paper, a set of geophysical magnetic and gravity data of the Hajjar area in Morocco, covering an extent of 3.2×1.6km 2 , were used to make a 3D model of an orebody and to estimate the mineral reserve by potential-field geophysical data inversion and excess mass estimation. We thus promote the development and application of potential-field geophysical data inversion using the softwares Geosoft Oasis Montaj and Voxi Earth Modelling™ and the evaluation of its power compared to the excess mass estimation method. The process of inversion begins with data processing, then moves to analysis and interpretation, and ends with unconstrained Cartesian cut cell inversion. The results show a variation of -0.22 mGal to 1.59 mGal for the gravity residual anomaly map, leading to have density variations from 2.45g/cm 3 to 4.22g/cm 3 , and a variation of -232 nT to 1018 nT for the reduced magnetic anomaly map." @default.
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- W3044850538 date "2020-11-04" @default.
- W3044850538 modified "2023-10-16" @default.
- W3044850538 title "Potential-field geophysical data inversion for 3D modelling and reserve estimation (Example of the Hajjar mine, Guemassa massif, Morocco): magnetic and gravity data case" @default.
- W3044850538 cites W2502982751 @default.
- W3044850538 doi "https://doi.org/10.5802/crgeos.10" @default.
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