SOURCES OF SUBSTANCE AND GENETIC RELATION OF SOIL AND BAUXITE BEARING HORIZONS IN THE LATERITE PROFILE OF THE WEATHERING CRUST (OF THE FUTA JALLON-MANDINGO PROVINCE, REPUBLIC OF GUINEA)

M. A. Makarova; Макарова М. А.; E. S. Shipilova; Шипилова Е. С.; N. M. Boeva; Боева Н. М.; D. A. Vnuchkov; Внучков Д. А.; N. S. Bortnikov; Бортников Н. С.

doi:10.31857/S2686739723600893

SOURCES OF SUBSTANCE AND GENETIC RELATION OF SOIL AND BAUXITE BEARING HORIZONS IN THE LATERITE PROFILE OF THE WEATHERING CRUST (OF THE FUTA JALLON-MANDINGO PROVINCE, REPUBLIC OF GUINEA)

Authors: Makarova M.A.¹, Shipilova E.S.¹, Boeva N.M.¹, Vnuchkov D.A.¹, Bortnikov N.S.¹
Affiliations:
1. Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
Issue: Vol 511, No 2 (2023)
Pages: 181-190
Section: MINERALOGY
Submitted: 30.01.2025
Published: 01.08.2023
URL: https://rjsvd.com/2686-7397/article/view/649849
DOI: https://doi.org/10.31857/S2686739723600893
EDN: https://elibrary.ru/WGWALE
ID: 649849

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Abstract

For the first time, a granulometric analysis of lateritic soils was carried out and the sources of the substance involved in the formation of the degradation zone in the bauxite-bearing laterite profile of the bauxite-bearing province of Futa Jallon-Mandingo were identified. Throughout the province, on the stony rocks of the lateritic covers, the soil horizon occurs everywhere - the uppermost element of the vertical profile of the weathering crust. In the soil horizon, most of the components become mobile, leaching processes predominate, and laterites are mobilized and redistributed. The study of these continental formations made it possible to establish the genetic relationship between the soil horizon of the weathering crust and the underlying bauxite ores, and to determine the degree of influence of soil composition on the processes of bauxite formation.

Keywords

lateritic weathering crust, soil-vegetation horizon, bauxite, genetic connection, source of substance, Futa Jallon-Mandingo

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