Synsedimentary Deformation Characterization of Niamey Sandstones in the Tondibia Area (Man Shield Northeastern Margin, Western Niger, Region of Niamey)

Authors

  • Hassan Ibrahim Maharou

    Department of Geology, Abdou Moumouni University of Niamey, Niamey BP 10662, Niger
  • Karimou Laouali Idi

    Department of Geology, Abdou Moumouni University of Niamey, Niamey BP 10662, Niger
  • Salissou Abdoul Ganiou Amadou

    Department of Geology, Abdou Moumouni University of Niamey, Niamey BP 10662, Niger
  • Moussa Konaté

    Department of Geology, Abdou Moumouni University of Niamey, Niamey BP 10662, Niger

DOI:

https://doi.org/10.30564/jees.v6i3.6750
Received: 12 June 2024 | Revised: 27 August 2024 | Accepted: 4 September 2024 | Published Online: 18 September 2024

Abstract

Niamey sandstones belong to a group of formations of Neoproterozoic-age, located on the Man shield northeastern margin. They sporadically outcrop along the Niger river valley. These geological formations, which occupy a central position in relation to the Taoudenni basin (further north) and the Voltas basin (further south), share similarities with the formations of the aforementioned basins. The research objective is to determine the synsedimentary deformation that has affected these Niamey sandstones in the Tondibia area. The methodological approach used focuses, firstly, on field measurements of synsedimentary deformation structures, and secondly, on projecting these measurements into the Win-Tenseur program in order to calculate stress tensors (s1, s2, s3). Synsedimentary deformations appear during the early stages of lithification, i.e. when the sediment is still loose and contains a high percentage of water. The analysis of these deformations is of great interest for the tectonic-sedimentary analysis of basin deposits. Deformation analysis reveals that the synsedimentary deformation phase affecting the Niamey sandstones is characterized by a NNW-SSE to NNE-SSW direction of elongation. This phase of deformation is marked in the field by normal faults with an average orientation of N80°. This extensive episode is concomitant with the extension of the Neoproterozoic Ocean (870 to 800 Ma).

Keywords:

Synsedimentary deformation; Normal faults; Neoproterozoic Ocean; Niamey region; Niger

References

[1] Machens, E., 1973. Contribution to the study of the formation of the crystalline basement and sedimentary cover of the western Niger republic. BRGM Editions. 82, 167 p. (In French)

[2] Ibrahim Maharou, H., Konaté, M., 2018. Depositional Environments of Niamey Area Proterozoic Deposits (Western Niger). International Journal of Science and Research (IJSR). 7(7), 1126–1131. DOI: https://doi.org/10.21275/ART2019135

[3] Konaté, M., Ahmed, Y., Gärtner, A., et al., 2018. U–Pb detrital zircon ages of sediments from the Firgoun and Niamey areas (eastern border of West African Craton, West Niger) Comptes Rendus. Géoscience 350, p. 267–278. DOI: https://doi.org/10.1016/j.crte.2018.06.005

[4] Alzouma Amadou, D., Konaté, M., Ahmed, Y., 2020. Geodynamic context of the Proterozoïc deposits of the Firgoun Region (eastern border of the West African Craton, West Niger). Geological Society, London, Special Publications. 502. DOI: https://doi.org/10.1144/SP502-2019-115

[5] Affaton, P., Gaviglio, P., Pharisat, A., 2000. Reactivation of the West-African craton during the Panafrican tectonic cycle: evidence of paleostresses recorded by brittle deformation in the Neoproterozoic sandstones of Karey Gorou (Niger, West Africa). C. R. Acad. Sci. Paris, Earth and Planetary Sciences. 331, 609–614. (In French)

[6] Ousmane, H., Dia Hantchi, K., Boubacar Hamidou, L., et al., 2020. Characterization of Deformations of the Continental Terminal (Ct3) Oligocene Deposits in the Niamey Region (Eastern Border of the West African Craton, Iullemmeden Basin). European Scientific Journal. 16(15), 418. DOI: https://doi.org/10.19044/esj.2020.v16n15p418

[7] Vicat J.P., Léger J.M., Ahmed Y., et al., 1994. Plio-Quaternary deformation indices on the western edge of the Iullemmeden basin in the Niamey region. Alpine Geography Review. 15–24. (In French)

[8] Ball E., 1980. An example of very consistent brittle deformation over a wide intracontinental area: the late Pan-African fracture system of the Tuareg and Nigerian shield. Tectonophysic. 16, 363–379. DOI: https://doi.org/10.1016/0040-1951%2880%2990240-1

[9] Affaton P., Gélard J.P, Simpara N., 1991. Palaeostresses recorded by fracturing in the Atacora structural unit at the latitude of Défalé (Pan-African chain of Dahomeyides, Togo). C. R. Acad. Sci. Paris. 312(II), 763–768

[10] Bessoles B., 1977. Geology of Africa: The West African Craton. BRGM. 88, 402 p. (In French)

[11] Soumaila, A., 2000. Structural, petrographic and geochemical study of the Diagorou-Darbani belt, Liptako, West Niger (West Africa) [PhD Thesis]. Franche-Comté University, 203 p. (In French)

[12] Soumaila A., Henry P., Rossy M., 2004. Setting context of the basic rocks of the Diagorou-Darbani Birimian greenstone belt (Liptako, Niger, West Africa): oceanic plateau or arc environment/ oceanic back-arc basin. C. R. Geoscience. 336, 1137–1147. (In French)

[13] Soumaila, A., Konaté, M., 2005. Characterization of deformation in the Birimian (Paleoproterozoic) Diagorou-Darbani belt (Niger Liptako province, West Africa). Afr. Geo. Review. 13(3), 161–178. (In French)

[14] Soumaila, A., Garba, Z., 2006. Metamorphism of the Diagorou-Darbani (Liptako, Niger, West Africa) birimian (paleoproterozoic) greenstone belt formations. Africa Geoscience Review. 13(1), 107–128. (In French)

[15] Soumaila, A., Henry, P., Garba, Z., et al., 2008. REE Patterns, Nd-Sm and U-Pb ages of the metamorphic rocks of the Diagorou-Darbani greenstone belt (Liptako, SW Niger): implication for Birimian (Paleoproterozoic) crustal genesis, Geological Society. London; Special Publications. Volume 297, pp. 19–32.

[16] Hallarou, M.M., Konaté, M., Olatunji, A.S., et al., 2020. Re-Os Ages for the Kourki Porphyry Cu-Mo Deposits, North West Niger (West Africa) : Geodynamic Implications. European Journal of Environment and Earth Sciences. 13 p. DOI: https://doi.org/10.24018/ejgeo.2020.1.4.43

[17] Mallam Mamane, H., 2021. Context of the emplacement of copper and molybdenum mineralization in the Birimian formations of the Kourki region (Liptako, West Niger) : Genesis and magmatic evolution [PhD Thesis]. Abdou Moumouni University of Niamey. 162p. (In French)

[18] Garba Saley, H., Konaté, M., Okunlola, O.A., 2024. Petrographic Study of Mn-bearing Gondite (Birimian) of Téra Area in the Leo-Man Shield (West African Craton) in Niger. Korea Economic and Environmental Geology. 57, 25–39. DOI: https://doi.org/10.9719/EEG.2024.57.1.25

[19] Dupuis, D., Pons, J., Prost, A.E., 1991. Pluton emplacement and characterization of birimian deformation in western Niger. Compte Rendus Acad. Sci. Paris. 312 (II), 769–776. (In French)

[20] Ama-Salah, I., Liegeois, J. P., Pouclet, A., 1996. Evolution of an early Birimian oceanic island arc in the Nigerian Liptako (Sirba): geology, geochronology and geochemistry. Journal of African Sciences. 22(3), 235–254. (In French)

[21] Abdou, A., Bonnot, H., Bory Kadey, D., et al., 1998. Explanatory note for the 1 : 100,000 and 1 : 200,000 Liptako geological maps. Ministry of Mines and Geology, Niger republic. 64 p. (In French)

[22] Garba Saley, H., Konaté, M., Ahmed, Y., et al., 2017. Manganese mineralization in Nord Téra (Liptako, western Niger) : origin and development conditions, REV. CAMES. 5(2), 18–28. (In French)

[23] Greigert, J., 1966. Description of the Cretaceous and Tertiary formations of the Iullemmeden basin (West Africa). Review Min. and Geol, Niger (2), Mem. BRGM. 32, 234 p. (In French)

[24] Hamza Mayaki, I., Souley, H., Konaté, M., 2017. Geological and geotechnical characteristics of two quarried geomaterials in the Niamey region: ferruginous oolitic sandstones and birimian granitoids. Journal of Sciences. (In French)

[25] Ousmane, H., 2022. Depositional environments of the Terminal Continental Formation (Ct3) of the Niamey region and associated deformations [PhD Theisis]. Abdou Moumouni University of Niamey. 182p. (In French)

[26] Beauvais, A., Ruffet, G., Henocque, O., et al., 2008. Chemical and physical erosion rhythms of the West African Cenozoic morphogenesis: The 39Ar-40Ar dating of supergene K-Mn oxides. Journal of Geophysical Research. 113(F04007), 15p.

[27] Azouma Amadou, D., 2022. Depositional environments of Neoproterozoic formations in the Firgoun region (western Niger) : Glaciations, Deformations and copper mineralization [PhD Thesis]. Abdou Moumouni University of Niamey. 188p. (In French)

[28] Dubois, D., 1979. Study of the iron formations of the Iullemmeden basin (Niger) [PhD Thesis]. Orléans-Niamey Universities. 123 p. (In French)

[29] Guiraud M., Séguret M., 1986. Hydroplastic microfaults linked to the compaction of fluviodeltaic sediments in the Wealdian basin of Soria (Spain). C.R. Acad. Sci. Paris. 302(2), 793–798. (In French)

[30] Konaté M., 1996. Tectono-sedimentary evolution of the Paleozoic Kandi Basin (northern Benin, southern Niger) : A witness to the post-orogenic extension of the Pan-African chain [PhD Thesis]. Universities of Bourgogne, Lyon I, Aix-Marseille I, Toulouse III, First Volume, 312 p. (In French)

[31] Delvaux D., Sperner B., 2003. New aspects of tectonic stress inversion with reference to the TENSOR program. Geological Society, London, Special Publications. 212(1), 75–100.

[32] Miningou M.Y.W., Affaton P., Meunier J.D., et al., 2017. Establishment of a lithostratigraphic column in the Béli area (Northeastern Burkina Faso, West Africa) based on the occurrence of a glacial triad and a molassic sequences in Neoproterozoic sedimentary Formations. Implications for the Pan-African orogeny. Journal of African Earth Sciences. 131, 80–97. DOI: https://doi.org/10.1016/j.jafrearsci.2017.03.016

[33] Reichelt, R., 1972. Geology of the Gourma (West Africa), a Upper Precambrian “threshold” and basin. Mem. Bur. Rech. Geol. Min. Paris. 53, 213 p. (In French)

[34] Trompette, R., 1973. The Upper Precambrian and Lower Paleozoic of the Adrar of Mauritania (western edge of the Taoudeni Basin, West Africa). An example of craton sedimentation. Stratigraphic and sedimentological study. Earth Science Laboratory research, Marseille (St- Jérome). 1–2, 573 p. (In French)

[35] Bertrand-Sarfati J., Moussine-Pouchkine A., Caby R., 1987. Proterozoic to Cambrian correlations in West Africa: a new geodynamic interpretation. Bull Sco Geol Fr III. 5, 855–865. (In French)

[36] Affaton, P., 1990. Volta Basin (West Africa) : A passive margin of Upper Proterozoic age, tectonized in the Pan-African (600-50 Ma). Paris : ORSTOM, (Thesis and Research) [PhD Thesis]. Geology, Aix-Marseille 3, 499 p. (In French)

[37] Gärtner A., Villeneuve M., Linnemann U., et al., 2016. History of the West African Neoproterozoic Ocean: Key to the geotectonic history of circum-Atlantic Peri-Gondwana (Adrar Souttouf Massif, Moroccan Sahara). Gondwana Research. 29(1), 220–233. DOI: https://doi.org/10.1016/j.gr.2014.11.011

[38] Black R., Caby, R., Moussine-Pouchkine A., et al., 1979. Evidence for late Precambrian plate tectonics in West Africa. Nature, London. 278, 223–227. DOI: https://doi.org/10.1038/278223a0

[39] Guiraud R., Issawi B., Bellion Y., 1985. Guinean-Nubian lineaments : a major structural feature on the scale of the African plate. Note presented by Aubouin. J. C. R. Academy of Sciences, Paris, 300, Serie II, 1. (In French)

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Ibrahim Maharou, H., Karimou Laouali Idi, Salissou Abdoul Ganiou Amadou, & Moussa Konaté. (2024). Synsedimentary Deformation Characterization of Niamey Sandstones in the Tondibia Area (Man Shield Northeastern Margin, Western Niger, Region of Niamey). Journal of Environmental & Earth Sciences, 6(3), 104–110. https://doi.org/10.30564/jees.v6i3.6750

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Vol. 6 , Iss. 3 (October 2024)

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Copyright © 2024 Hassan Ibrahim Maharou, Karimou Laouali Idi, Salissou Abdoul Ganiou Amadou, Moussa Konaté

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This is an open access article under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License.

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