Premium
Soils and Stratigraphy of Mid to Lower Slopes in the Southwestern Uplands of Nigeria
Author(s) -
Ojanuga A. G.,
Lee Gerhard B.,
Folster H.
Publication year - 1976
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1976.03615995004000020025x
Subject(s) - pedogenesis , geology , subsoil , sedimentary depositional environment , landform , geochemistry , soil water , stratigraphy , organic matter , stratification (seeds) , deposition (geology) , parent material , leaching (pedology) , earth science , geomorphology , soil science , paleontology , sediment , tectonics , chemistry , organic chemistry , structural basin , seed dormancy , germination , botany , dormancy , biology
Pedogenic and geomorphologic studies along mid to lower slopes of typical landforms in southwestern Nigeria revealed simple to complex stratification of pedisediments derived through cyclic erosional and depositional phenomena that evolved the inselberg landscapes in the region. The most recent pedimentation of slopes and hence, the deposition of the youngest soil parent material, is believed to have occurred about 2360 ± 120 years before the present. Contemporary soils owe many of their major properties to depositional processes. Pedogenic processes that could be inferred from existing soil properties include: the addition of organic matter to surface horizons, strong leaching of bases, eluviation of iron oxides from surface layers, lateral translocation of iron oxides, incrustation of subsoil concretionary materials to form petroferric horizons (hardpan) in lower slope positions, and clay migration.