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Soil—Landscape Relationships in the Piedmont of Maryland
Author(s) -
Darmody R. G.,
Foss J. E.
Publication year - 1982
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/sssaj1982.03615995004600030029x
Subject(s) - loess , paleosol , geology , silt , overburden , radiocarbon dating , soil water , bioturbation , geomorphology , physical geography , soil science , sediment , hydrology (agriculture) , paleontology , geography , geotechnical engineering
A study was conducted to investigate and model the soil‐landscape relationships in the Piedmont of Maryland. The soil series of particular interest were the Chester, Glenelg, and Elioak series of Typic Hapludults. Results indicate that Elioak soil is a relict paleosol. A stone line separating strongly weathered Elioak soil material from silty overburden was revealed in several excavations. Particle‐size analyses and elemental analyses of silt fractions confirmed these discontinuities. Comparisons with known and radiocarbon‐dated loess deposits on the eastern shore of Maryland indicate that the silty overburden on the Piedmont is loess which was deposited after 10,520 ± 240 years B. P. Where the loess is thick, as on gentle slopes, Chester soils are mapped. Where the relict paleosol has been essentially eroded away, as on steeper slopes, Glenelg soils are mapped.