About this Survey
Formation of Soils
General Nature of the Area
General NatureArea History
General Soil Map Units
General Soil Map Units1. Liberal-Collinsville-Barco association2. Parsons-Barden association3. Barco-Collinsville association4. Hector-Bolivar association5. Mine pits and dumps association6. Creldon-Carytown-Parsons association7. Nixa-Lebanon association
Askew SeriesBarco SeriesBarden SeriesBolivar SeriesBreaks-Alluvial LandBronaugh SeriesCarytown SeriesCherokee SeriesCleora SeriesCollinsville SeriesCreldon SeriesHector SeriesHepler SeriesKeeno SeriesLanton SeriesLebanon SeriesLiberal SeriesMine Pits and DumpsNewtonia SeriesNixa SeriesParsons SeriesRadley SeriesSummit Series
SOIL SURVEY OF BARTON COUNTY MISSOURI
From the foregoing discussion it is evident that soil
formation can be hastened or delayed. It should also be
clear that some time is required to convert parent material
to soil. A long time is required to produce a mature
soil or change a young soil to an old one. The soils in
Barton County range from very young to very old.
The young alluvial soils are exemplified by the Radley
and Verdigris series. Soil particles washed from the nearby
uplands are frequently deposited on the flood plains
by the local streams. Erosion of part or all of the soil
as it forms, excessive relief, and parent material that
resists weathering account for the young, shallow soils
on the uplands. Soils of the Collinsville and Hector series
are examples. The difference between layers in these
soils, especially the alluvial group, is not distinct or
Old age is reached when any layer develops to a point
that it obscures the other properties of the soil. The high
content of clay in the subsoil of the soils in the Parsons,
Cherokee, and Carytown series is an example. How sub-normal
relief hastened the formation of this layer that
has a high accumulation of clay is briefly discussed under
"Relief" in this section.
Another good example is the prominent fragipan in
soils of the Creldon, Keeno, Lebanon, and Nixa series.
These are the oldest soils in the county. The extremely
acid, firm fragipan underlies the present-day subsoil.
This and the fact that finer textured layers are immediately
above and below the fragipan indicate that
this pan may be an erosional surface of a much older
soil. That it formed during an earlier weathering cycle
seems probable. Thin clay films in the channels and cracks
of the upper part of the soil, which probably was the
surface layer of the older soil, reflect leaching of the
present subsoil. Much thicker clay films and flows in
the lower part of the soil are indicative of the movement
of clay within the fragipan. Tills clay accumulation is
probably the subsoil of the old soil.
Most of the remaining soils in the county have had
time to mature. Their profiles reflect the conditions under
which they formed. Time played an important part, but
because the other factors wore favorable, climatic in-fluences
tended to dominate.
Hughes, H.E. 1974. Soil Survey of Barton County, Missouri. USDA-SCS. U.S. Gov. Print. Office, Washington, DC.