Soil survey of Taylor County, Texas Page: 20 of 44
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18 FIELD OPERATIONS OF THIE BUREAU OF SOILS, 1915.
soils of this series are residual from sandstone, shale, and pebbly conglomerate
of the Permian Red Beds formation. They occupy steep
eroded slopes and moderately sloping to gently rolling lands. The
Vernon gravelly clay loam, fine sandy loam, and clay are mapped in
The Miles series includes chocolate-brown or reddish-brown soils
with reddish-brown to pinkish compact clay subsoils, frequently containing
gravel and powdery or hardened lime in the lower part. In
places the surface material contains some quartz, chert, and other
gravel. Gravel is frequently present in the lower subsoil and substratum;
here it is bedded in the clay as a clay-gravel hardpan or
cemented with lime into a conglomerate hardpan. The latter is seldom
more than 4 to 8 inches thick, and occurs usually within the
second or third foot. The substratum consists mainly of reddish clay,
carrying variable quantities of gravel. The series owes its origin to
weathering of the waterlaid or outwash-plain material. The topography
varies from level to gently undulating. The series includes
four types-the gravelly clay loam, fine sandy loam, loam, and silty
The surface material of the soils included in the Abilene series
ranges from dark reddish brown or chocolate brown to almost
black. The subsoil ranges from reddish brown to chocolate brown
and consists of compact clay, carrying varying quantities of small
gravel and white powdery or hardened lime in the lower part or in
the substratum. In places gravel of quartz, chert, and other rocks
is present on the surface. Beds of clay, gravel, cemented calcareous
hardpan, or limestone conglomerate occur. Soils of the Abilene
series are derived from waterlaid, outwash-plain materials. The
topography varies from level to gently undulating. The Abilene
loam and silty clay loam are mapped in this county.
The surface soils of the Bastrop series are reddish brown and are
underlain by dark chocolate red to pale reddish brown clay, the depth
of color depending on the quantity of light-colored calcareous material
present. In places white streaks of limy material occur in the
lower subsoil. Lime is also present in the form of small nodules or
concretions. In general the subsoil material effervesces strongly with
hydrochloric acid. A few quartz, chert, and other gravel particles
occur within the 3-foot section, and larger amounts occur in the substratum,
which in places at lower depths is composed of beds of
gravel. The material from which these soils are derived consists of
old alluvium, and was deposited when the overflows reached higher
levels than at present. The surface is level or very gently undulating.
Four members of the Bastrop series are mapped--the fine
sand, fine sandy loam, loam, and silty clay loam.
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Smith, William G.; Kocher, A. E. (Arthur E.), b. 1877; Rodgers, R. F. & Watkins, W. I. Soil survey of Taylor County, Texas, book, 1918; Washington D.C.. (texashistory.unt.edu/ark:/67531/metapth19833/m1/20/: accessed February 20, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; crediting UNT Libraries Government Documents Department.