In this study, total carbon was measured rather than organic carbon, thus there is likely to be an influence of carbonates, particularly in the outer zones of the lakes where pedogenic
carbonate segregations are common.
The type of channels varied depending on the proximity to watersheds and source areas, and palustrine and pedogenic
environments were associated with non-subsiding areas, such as sub-basin margins.
Interpretation: Features like its geometry, predominant red color and extensive pedogenic
horizons suggest a flood basin origin in a well drained oxygenated environment for these mudstones (Wright and Tucker, 1991; Retallack,1997).
During the last decade the mobilization and accumulation of both amorphous and total pedogenic
nonsiliceous iron, characteristic of pedogenetic weathering of ferri- and alumosilicates and argillization, decreased in the variants where calcareousness of fine earth had increased (Tables 5, 8, and 9).
horizons were identified and their mean depth and thickness were determined.
Nevertheless, in many soils of the humid tropics, gravels are chiefly composed of ironstone or petroplinthite, which are pedogenic
Nordt LC, Wilding LP, Drees LR (2000) Pedogenic
carbonate transformation in leaching soil systems: Implications for the global C cycle.
This facies association seems to reflect an intense pedogenic
response to subaerial exposure of palustrine limestones during long periods of time and ephemeral humectation phases (Freytet and Plaziat, 1982; Armenteros et al.
process of clay illuviation is typical for Albeluvisol and Luvisol.
The absence of pedogenic
carbonate in the Joggins Formation paleosols conflicts, however, with the interpretation of alfisols by DiMichele et al.
9:45 AN ASSESSMENT OF THE ANTHROPOGENIC AND PEDOGENIC
SOURCES OF ARSENIC IN SOILS THROUGHOUT MISSISSIPPI
processes refer to the development of soil horizons parallel to the soil surface, including rock weathering.