Special-purpose geotechnical map on distribution of endo- and exogenous geological processes of the Republic of Guinea

Background. Geodynamic processes pose a threat to the infrastructure of any country. Elucidation of these process is crucial for mitigating their impact on the economy, increasing the stability of structures, and ensuring the safety of the population.

Aim. To compile a schematic map of the distribution of the main geological processes in the Republic of Guinea in order to identify the most favorable regions for development while minimizing the consequences of endo- and exogenous geological processes.

Materials and methods. The research involved collection, analysis, and synthesis of geological, geographical, and stock materials. The authors’ own data was also used.

Results. A special-purpose geotechnical map of geological processes in Guinea with a scale of M 1:7,500,000 was created. This map contains information on the spatial distribution of engineering-geological processes in the country. Seven processes that pose a risk to the infrastructure of the Republic of Guinea were identified and classified. The causes, conditions, and rates of process development are outlined.

Conclusion. The developed special-purpose geotechnical map can be used when carrying out macroeconomic planning of the economic development of the country.

1. Bondarik G. K., Ierusalimskaya E.N., Yarg L.A. Features of the methods for assessing the risk of exogenous geological processes at the regional level. News of university. Geology and Exploration. — 2006 — P. 4852. (in Russian).

2. Bondarik G. K Methodological basis for monitoring exogenous geological processes. Moscow, Nauka Publ., 1986. 172 p. (in Russian).

3. Bondarik G. K., Pendin V. V., Yarg L. A. Engineering geodynamics — 4th ed. Additional. Moscow, KDU Publ., 2015. 472 p. (in Russian).

4. Mamedov V. I., Bufeev Yu. Geology of the Republic of Guinea. T. 1. MSU Publ., 2011. 341 p. (In Russian).

5. Mamedov V. I., Chausov A. A., Okonov E. A., Makarova M. A., Boeva N. M. The World’s Largest BauxiteBearing Province of Fouta Jalon Mandino (West Africa). Part I General Information // Geology of Ore Deposits. 2020. Volume 62. № 2. Pp. 178–192. (in Russian).

6. Popov I. V. Engineering Geology of the USSR. T. 1. General Fundamentals of Regional Engineering Geology. Moscow, MSU Publ., 1961. 178 p.4. (in Russian).

7. Seliverstov Y.P. Evolution of Relief and Cover Formations of the Humid Tropics of the Sahara Platform of L. Nedra. 1978. 285 p. (in Russian).

8. Trofimov V. T. Zonality of Engineering and Geological Conditions of the Earth’s Continents. Moscow, MSU Publ., 2002, 348 p. (in Russian).

9. Trofimov V. T., Averkina T. I. Theoretical Foundations of Regional Engineering Geology. Moscow, GEOS Publ., 2007. 464 p. (In Russian).

10. Yarg L.A. Engineering-geological study of the weathering process. — Moscow, Nedra Publ., 1987, 236 p. (in Russian).

11. Yarg L.A. Methods of Engineering and Geological Studies of the Process and Weathering Crust. Moscow, Nedra Publ., 1991, 139. (in Russian).

12. Ballais J.L., et al. The hydrogeomorphological method for determining flood zones // PhysioGéo (www.physio-geo.fr), collection «Structures». — 2011. — 168 p.

13. Boeglin J.L., Mortatti J., Tardy Y. Chemical and mechanical erosion in the upstream basin of the Niger (Guinea, Mali): geochemical balance of weathering in tropical environments. Proceedings of the Academy of Sciences. Series 2a: Earth and Planetary Sciences. — 1997. Vol. (325), No. 3, pp. 185–191.

14. Dorbath C., Dorbath, L., Gaulon R., George T., Mourgue P., Ramdani M., Robineau B., and Tadili E. Seismotectonics of the Guinean earthquake of december 22, 1983. Geophysical Research Letters. — 1984. — Vol (11), p. 971–974.

15. Guillaume Morin. Erosion and weathering in the Himalayas and their evolution since the Late Pleistocene: analysis of erosion processes from current and past river sediments in central Nepal. Earth Sciences. University of Lorraine. — 2015. French. ffNT: 2015LORR0258ff. fftel-01754542.

16. Irinyemi S.A., Lombardi D., Ahmad S.M. Probabilistic seismic hazard assessment for West Africa region // Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards. — 2021. https://doi.org/10.1080/17499518.2021.1952608.

17. Irinyemi S.A., Lombardi D., Ahmad S.M. Seismic hazard assessment for Guinea, West Africa // Scientific Reports. — February 2022. https://doi.org/10.1038/s41598-022-06222-7.

18. Krastanov, M. 2022. Methods used for monitoring geodynamic processes on the territory of Bulgaria. Engineering Geology and Hydrogeology, 36, 25–34. https://doi.org/10.52321/igh.36.1.25

19. Dorofeev N V et al., The selection of parameters and control points in the geotechnical monitoring system, 2020 IOP Conf. Ser.: Mater. Sci. Eng. 873 012030. https://doi.org/10.1088/1757899X/873/1/012030

20. Dorofeev N V. et al., The Forecasting of the Development of Suffosion Processes in Urban on the Basis of the Geoelectric Modeling by the Data of the Phasometric System of the Geodynamic Control, International Journal of Engineering & Technology, Vol. 7 No. 4.7 (2018): Special Issue 7 https://doi.org/10.14419/ijet.v7i4.7.20561

21. Ouattara Y. Seismic structure of West Africa by surface wave tomography. Earth Sciences. University of Strasbourg; Félix Houphouët-Boigny University (Abidjan, Côte d’Ivoire), 2019. French. ffNT: 2019STRAH006ff. fftel-02338926f.

22. Building Resilience and Climate Change Adaptation of the Guinean Coast, Pre-Feasibility Analysis, April 2018.

23. MEEF 2012, National Strategy for Disaster Risk Reduction, Conakry Republic of Guinea, Volume 2.

24. Suleiman, A. S., Doser, D. I., and Yarwood, D. R. Source parameters of earthquakes along the coastal margin of West Africa and comparisons with earthquakes in other coastal margin settings // Tectonophysics,Volume 222. — Issue 1,1993, Pages 79-91, ISSN 0040-1951, https://doi.org/10.1016/0040-1951(93)90191-L.

25. T. Kuropatkina, T. Lyubimova, Application of GIS technologies for engineering geodynamic zoning of mountain territories, in E3S Web of Conferences 383, 02015 (2023), TT21C-2023. https://doi.org/10.1051/e3sconf/202338302015

26. Tchounga T.G.B. Local governance and management of natural risks in the district of Douala V (coast, Cameroon): Master’s thesis, University of Douala (Cameroon), April 2016, 160 p.