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The Relation of Certain Loessial Soils of Northeastern Kansas to the Texture of the Underlying Loess
Author(s) -
Hanna Robert M.,
Bidwell O. W.
Publication year - 1955
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/sssaj1955.03615995001900030026x
Subject(s) - loess , geology , floodplain , hydrology (agriculture) , soil texture , horizon , soil water , texture (cosmology) , geomorphology , archaeology , physical geography , soil science , geography , geotechnical engineering , physics , cartography , astronomy , artificial intelligence , computer science , image (mathematics)
Particle size analyses were made on 10 profiles representing four soil series. The profiles were located on a traverse perpendicular to the Missouri River from the Missouri River bluffs in northwestern Doniphan County, Kansas, to a point in southwestern Brown County, 24 miles from the river. The first sampling site was located 2 miles from the Missouri River. Subsequent sites were located at approximately 2½‐mile intervals. The thickness of the loess, as measured at most sites, decreased from approximately 100 feet at the river bluffs to 6 feet at the tenth site. The textural composition and pH of each horizon were determined in the laboratory. The texture of the C, B, and A horizons was observed to become finer with increased distance from the river up to 16 miles from the bluff. Beyond that point there was little if any decrease in particle size with distance. The change in texture of the C horizon with distance from the river appears to be the dominant factor in the development of the four soil series, Monona, Marshall, Sharpsburg, Grundy, which have not been finally correlated in this area. This work further substantiates the belief that the Missouri River Valley flood plain was a source of some of the loessial deposits of northeastern Kansas.