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Morphology of Soils With Fragipans in Parts of Wilson County, North Carolina
Author(s) -
Daniels R. B.,
Nettleton W. D.,
McCracken R. J.,
Gamble E. E.
Publication year - 1966
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/sssaj1966.03615995003000030023x
Subject(s) - loam , horizon , geology , soil water , silt , coastal plain , soil horizon , soil science , geomorphology , paleontology , mathematics , geometry
Moderately well to very poorly drained soils in parts of the North Carolina Coastal Plain have subsurface horizons with the physical properties of fragipans. The brittle parts of the fragipan horizons are dense gray loamy sands, sandy loams or silt loams. This dense brittle material occurs in the same horizon with less dense, friable, more clayey materials. Soils with weakly expressed fragipan horizons have an A, Bt, Bt & A′2x, B′tx, and C horizon sequence. Soils with the most strongly expressed fragipan horizons have an A, B, A′2x, B′tx, and C or an A, A2x, Btx, and C horizon sequence. The fragipan horizon in the most strongly expressed pans in places engulfs the overlying B horizon.