Authors : Luck LUPONGO MANDE KASHIKISHA; TONDOZI KETO; Patrice BONDO MUTEBA DIBWE; Joseph CIMBELA KABONGO

Volume/Issue : Volume 9 - 2024, Issue 8 - August

Google Scholar : https://tinyurl.com/mrdazr5c

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DOI : https://doi.org/10.38124/ijisrt/IJISRT24AUG042

Abstract : This paper is based on the application of terrestrial and satellite gravimetry in mining and petroleum research in the former province of Kasai- Occidental in the Democratic Republic of Congo. This former province was split into two new provinces: Kasaï and Kasaï-Central. From a geological point of view, this area is dominated by Mesozoic and Cenozoic rocks in its northern part and by Precambrian rocks very rich in minerals in its southern part. Due to the insufficiency of terrestrial gravity data from pre-existing campaigns, we had access to satellite data from the International Gravimetric Bureau platform in order to have better resolution in the mapping of the subsurface of this region. The data processing methodology consisted of background noise attenuation as well as regional-residual separation. The gravity sets detected on the Bouguer anomaly map were grouped into high and low intensity zones. The structural map on which we have traced the faults and fold axes shows a preferential orientation of these structures in the NW-SE direction. The superposition of mineral occurrences and geological structures highlighted allowed us to split this zone into two parts: The southern part whose gravity highs concentrate the majority of diamond and iron occurrences and the gravity depressions which concentrate the indices of Lead, Nickel, Manganese; as well as the northern part located in the center of the Central Cuvette which contains a great thickness of sediments constituting, therefore, a favorable place for the maturation of the source rocks.

Keywords : Exploration, Mineral Resources, Gravimetry, Western Kasai.

References :

1. UNDP (2009), Province du Kasaï-Occidental Profil Résume : Pauvreté et Conditions de vie des Ménages.
2. Cahen, L. (1982) – Geochronological correlation of the late Precambrian sequences on and around the stable zones of equatorial Africa. – In: Geochronological correlation of Precambrian sediments and volcanics in stable zones (Bonhomme, Michel-G. Ed.). Precambrian Research.
3. Baudet D. (1987) – Implications of a palynological study in the Upper Precambrian from estern Kasai and northwestern Shaba, Zaire. – Geol. Journ. 22, Thematic Issue, 121-137.
4. Fernandez Alonzo and al., (2015), Carte Géologique de la République Démocratique du Congo au 1/2.500.000 : Notice explicative, Ministère des Mines, République Démocratique du Congo.
5. C. François, B. K. Baludikay, J. Y.Storme, D. Baudet And E. J. Javaux (2015), Geochronological constraints on the diagenesis of the Mbuji-Mayi Supergroup, Democratic Republic of Congo (DRC).
6. Eli-Achille Manwana Mfumukani, Franck Tondozi Keto, Robert Muanda Ngimbi, Emmanuel Bahati Wenda, Anscaire Mukange Besa, Reagan Lotutala Tazi, Olivier Muhingy Sawa-Sawa (2022), Interpretation of Gravity Data and Contribution in the Structural Study of the Southern Part of the Congo Basin: Case of the Kasaï Region in D.R. Congo; Volume 7, Issue 9, September – 2022 International Journal of Innovative Science and Research Technology; ISSN No: -2456-2165.
7. Michiel C.J. de Wit and Hielke A. Jelsma (2015), A Review of the Kimberlites of the Democratic Republic of Congo, Geology and Resource Potential of the Congo Basin, Springer.
8. Maarten J. de Wit and Bastien Linol (2015), Precambrian Basement of the Congo Basin and Its Flanking Terrains, Geology and Resource Potential of the Congo Basin, Springer.
9. Pierre Evrard (1957), Les recherches géophysiques et géologiques et les travaux de sondage dans la Cuvette congolaise. L'académie royale des sciences coloniales.
10. G. R. Foulger and C. Peirce (2002), Geophysical methods in geology.
11. Brahimi Sonia, Munschy Marc, Bourmatte Amar (2008), Apport de la gravimétrie et du magnétisme à l’étude de la structure du bassin d’Illizi (Algérie).