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Abstract

Summary

The regional geology of the African equatorial west coast is complex and not well understood since the seismic coverage of deeper crustal features is sparse. The intricate structural settings are also reflected in potential field anomalies, and in particular in gravity data. The presented study primarily aims at estimating basement depths from satellite-derived gravity anomalies in a 400 km by 300 km wide area off-and onshore the territories of Congo, Cabinda, and the Democratic Republic of Congo. Where available, well and seismic data are used to constrain the inversion. The final 3D density model indicates a lateral division in 3 zones (oceanic crust, transition zone, continental crust) and maximum sediment thicknesses of 2.5 / 7.5 km on- / offshore. Although non-uniqueness and ambiguity of potential field data still pose challenges, it is concluded that public-domain gravity data can add useful information for regional modeling.

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/content/papers/10.3997/2214-4609.201600631
2016-05-30
2024-04-29

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References

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201600631
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3D Modeling of the Regional Basement Structure Off- and Onshore Congo Based on Inversion of Satellite-derived Gravity Da
Conference Proceedings 2016, 1 (2016); https://doi.org/10.3997/2214-4609.201600631
/content/papers/10.3997/2214-4609.201600631
/content/papers/10.3997/2214-4609.201600631
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