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SLOPE DEVELOPMENT AND SOIL MORPHOLOGY IN A PART OF SOUTH‐WEST NIGERIA
Author(s) -
MOSS R. P.
Publication year - 1965
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1965.tb01432.x
Subject(s) - geology , cretaceous , paleontology , soil water , quaternary , pedogenesis , geomorphology , geochemistry , soil science
Summary The soils of two cuestas developed on ferruginous sandstones, one of Cretaceous, and the other of Eocene/Pliocene age, were studied in relation to the slopes and planation surfaces with which they were associated. The processes involved in the retreat of hardened plinthite breakaways are shown to account for the principal morphological features of the soils, especially the lower diagnostic horizons, and thus throw light upon the mode of formation of the ‘Acid Sands’ of southern Nigeria, and the ‘terre de barre’ of the ‘Continental Terminal’ of southern Dahomey. A distinction is made between sheet plinthites and flanking plinthites according to their mode of occurrence, both being related to periods of stillstand in the evolution of the slopes.