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Clay Accumulation in Sola of Poorly Drained Soils of Western Ohio
Author(s) -
Smeck Neil E.,
Ritchie A.,
Wilding L. P.,
Drees L. R.
Publication year - 1981
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/sssaj1981.03615995004500010021x
Subject(s) - pedogenesis , geology , soil horizon , silt , soil water , horizon , geochemistry , clay minerals , oil shale , carbonate , mineralogy , soil science , geomorphology , chemistry , paleontology , mathematics , geometry , organic chemistry
Five pedons consisting of Hoytville (Ochraqualf), Toledo (Haplaquept), Montgomery (Haplaquoll), Brookston, and Pewamo (Argiaquolls) were investigated to establish the presence or absence of sufficient illuvial clay in the B horizons to meet the requirements for argillic horizons. Even though the B horizons of two pedons (Hoytville and Toledo) exhibited sufficient clay increase from the A to B horizon to qualify as argillic horizons, micromorphological analyses and reconstruction techniques indicate that none of the soils studied possess argillic horizons. Reconstruction techniques indicate that both carbonate leaching and shale disintegration contribute clay to the B2 horizons but that comminution of coarse clay and silt to fine clay is the dominant pedogenic process. Illuvial cutans account for < 1% of the cross‐sectional area of thin sections, whereas stress cutans occur in up to 9% of the area of thin sections. It is our conclusion that reclassification of Brookston, Pewamo, Hoytville, and similar very poorly drained soils should be considered.