[ Etude géochimique des roches carbonatées de l’est du territoire de Rutshuru: Cas de Bwisha, RD Congo ]
Volume 32, Issue 1, February 2021, Pages 175–182
Landry Bahati Mudahera1 and Gloire Sadiki Barata2
1 Département de Géologie, Université de Goma, Goma, Nord-Kivu, RD Congo
2 Département de Géologie, Université de Goma, Goma, Nord-Kivu, RD Congo
Original language: French
Copyright © 2021 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The sector of Bwisha presents a lithological diversity dominated by the Precambrian basement formations surmounted by the cover rocks which are mainly volcanic, sedimentary (lake and fluvial alluvium). The geochemical analysis allowed us to obtain the concentration of CaO and MgO in different samples. A total of 41 samples were analyzed in the Nyiragongo cement laboratory. After processing of result, the Rubare sector exhibited a high concentration of CaCO3 (94, 5%) hence the presence of good quality of limestone. On the other side, the average concentration of Mgo of all samples is 2,58035024%, which proves that the dolomitization process is low.
Author Keywords: Precambrian, dolomitization, Bwisha.
Volume 32, Issue 1, February 2021, Pages 175–182
Landry Bahati Mudahera1 and Gloire Sadiki Barata2
1 Département de Géologie, Université de Goma, Goma, Nord-Kivu, RD Congo
2 Département de Géologie, Université de Goma, Goma, Nord-Kivu, RD Congo
Original language: French
Copyright © 2021 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The sector of Bwisha presents a lithological diversity dominated by the Precambrian basement formations surmounted by the cover rocks which are mainly volcanic, sedimentary (lake and fluvial alluvium). The geochemical analysis allowed us to obtain the concentration of CaO and MgO in different samples. A total of 41 samples were analyzed in the Nyiragongo cement laboratory. After processing of result, the Rubare sector exhibited a high concentration of CaCO3 (94, 5%) hence the presence of good quality of limestone. On the other side, the average concentration of Mgo of all samples is 2,58035024%, which proves that the dolomitization process is low.
Author Keywords: Precambrian, dolomitization, Bwisha.
Abstract: (french)
Le secteur de Bwisha présente une diversité lithologique dominée par les formations de soubassement du précambrien surmonté par les roches de couverture qui sont essentiellement des roches volcaniques, sédimentaires (les alluvions lacustres et fluviales). L’analyse géochimique nous a permis d’obtenir les concentrations de Cao et de MgO dans les différents échantillons. Au total 41 échantillons ont été analyse dans le laboratoire de Nyiragongo ciment. Après traitement des résultats, le secteur de Rubare a présenté une forte concentration en CaCO3 (94,5%) d’où la présence d’un calcaire de bonne qualité. Par contre, les teneurs moyennes en MgO de tous les échantillons est de 2,58035024% ce qui prouve que le processus de dolomitisation est faible.
Author Keywords: Précambrien, dolomitisation, Bwisha.
How to Cite this Article
Landry Bahati Mudahera and Gloire Sadiki Barata, “Geochemical study of carbonate rocks in eastern Rutshuru territory: Case of Bwisha, DR Congo,” International Journal of Innovation and Applied Studies, vol. 32, no. 1, pp. 175–182, February 2021.
