Coherence of Bangui Magnetic Anomaly with Topographic and Gravity Contrasts across Central African Republic

نویسندگان

چکیده

The interactions between the geophysical processes and geodynamics of lithosphere play a crucial role in geologic structure Earth’s crust. Bangui magnetic anomaly is notable feature lithospheric Central African Republic (CAR) resulting from complex tectonic evolution. This study reports on coherence data field analysed series maps. used here include raster grids free-air altimetric gravity, EMAG2 maps, geoid EGM2008 model topographic SRTM/ETOPO1 relief. were processed to analyse correspondence setting CAR region. Histogram equalization was implemented by partition into equal-area patches ranged segments with relative highs lows original compared equalized, normalized quadratic models. scripts for cartographic processing are presented commented. consistency topography, gravity based using GMT modules ‘grdfft’ ‘grdhisteq’ modules. Using mapping over shows an advanced approach multi-source visualization reveal relationships central Africa. results highlighted correlation distribution rocks high magnetism part anomaly, granites, greenstone belts, metamorphosed basalts as rock exposure. negative Bouguer (<−80 mGal), low values (<−12 m) extent extreme ranging −1000 −200 nT identified. integration provides new insights analysis crustal thicknesses average density Earth CAR, well magnitude fields deviations caused flux area related mineral resources CAR.

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ژورنال

عنوان ژورنال: Minerals

سال: 2023

ISSN: ['2075-163X']

DOI: https://doi.org/10.3390/min13050604