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Soil‐Geomorphic Relationships in Postglacial Alluvium in New York
Author(s) -
Scully R. W.,
Arnold R. W.
Publication year - 1979
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/sssaj1979.03615995004300050040x
Subject(s) - overbank , alluvium , geology , terrace (agriculture) , soil water , floodplain , inceptisol , bedrock , geochemistry , hydrology (agriculture) , geomorphology , archaeology , soil science , geography , fluvial , structural basin , cartography , geotechnical engineering
In south‐central New York alluvial soils of the three postglacial geomorphic units were correlative between two sites on different size rivers. Noncumulative Inceptisols dominate the higher postglacial terrace. Cumulative soils, with buried A horizons, that are fluventic subgroups of Inceptisols have developed in overbank silts episodically deposited during the past 3,500 years on the lower terrace (high bottom). Significantly less developed soils, but sometimes taxonomically identical, have developed in the oldest portion of the flood plain (low bottom). Weakly structured soils dominate the younger alluvial fills of the flood plain whose sandy lateral accretion deposits are less than 880 ± 130 years B.P. old. The weakly structured soils have remnants of textural stratification and lack color evidence of alteration and are presumably Fluvents.