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Some Till‐Derived Chernozem Soils in Eastern North Dakota: I. Morphology, Genesis, and Classification
Author(s) -
Redmond C. E.,
Omodt H. W.
Publication year - 1967
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/sssaj1967.03615995003100010025x
Subject(s) - chernozem , soil water , weathering , geology , total organic carbon , organic matter , soil morphology , soil science , geochemistry , mineralogy , soil organic matter , environmental chemistry , chemistry , organic chemistry
The macromorphology of several groups of well‐drained Chernozems in Eastern North Dakota that have developed in glacial till are described. A general map shows the areas where these soils occur and the location of sites sampled. Laboratory analyses of two profiles representative of each of three of these soil groups include: particle size distribution, pH, organic carbon, CaCO 3 equivalent, clay size carbonates, free iron oxides, and the shale and chert content of the sand fractions. The processes involved in the development of these soils from the glacial materials include: accumulation of organic matter and associated structure formation; redistribution of carbonates and more soluble salts; color changes; and formation of prismatic, finer textured B horizons primarily by alternate wetting and drying and weathering ‘ in situ .’ Differences in the magnitude of these changes and in the original materials account for the Forman, Intermediate, and Barnes soils.