\<@37\>Maubila Series

\<@32\>The Maubila series consists of very deep, moderately well drained
soils that formed in clayey marine sediments. These soils are on
summits, shoulder slopes, and side slopes in the uplands. The seasonal
high water table is at a depth of 2 to 3-1/2 feet from December through
April in most years. Slopes range from 2 to 12 percent. These soils are
fine, mixed, subactive, thermic Aquic Hapludults.

\<@32\>Maubila soils are geographically associated with Cowarts,
Notcher, Perdido, Poarch, and Troup soils. The Cowarts, Notcher,
Perdido, and Troup soils are in positions similar to those of the
Maubila soils. The Cowarts soils are fine-loamy. The Notcher soils are
fine-loamy and have a significant accumulation of plinthite in the
subsoil. The Perdido soils are coarse-loamy. The Troup soils have a
thick, sandy epipedon. The Poarch soils are on higher summits than the
Maubila soils and are coarse-loamy.

\<@32\>Typical pedon of Maubila gravelly fine sandy loam, in an area of
Notcher-Maubila complex, 2 to 5 percent slopes; about 170 feet south and
1,835 feet east of the northwest corner of sec. 27, T. 4 N., R. 31 W.

\<@23\>Ap---0 to 4 inches; very dark grayish brown (10YR 3/2) gravelly
fine sandy loam; weak fine granular structure; very friable; many
medium, fine, and very fine roots; 20 percent, by volume, fine and
medium nodules of ironstone; strongly acid; clear smooth boundary.

\<@33\>E---4 to 9 inches; yellowish brown (10YR 5/4) fine sandy loam;
weak fine granular structure; common medium and fine roots; 8 percent,
by volume, fine and medium nodules of ironstone; strongly acid; clear
wavy boundary.

\<@33\>Bt1---9 to 16 inches; reddish yellow (7.5YR 6/8) clay loam; weak
medium subangular blocky structure; few medium and fine roots; few faint
clay films on faces of peds; very strongly acid; clear wavy boundary.

\<@33\>Bt2---16 to 32 inches; strong brown (7.5YR 5/8) clay loam;
moderate medium subangular blocky structure; firm; few fine roots;
common faint clay films on faces of peds; common fine and medium reddish
yellow (5YR 6/8) and red (2.5YR 4/8) masses of iron accumulation; few
medium distinct grayish brown (10YR 5/2) iron depletions; very strongly
acid; gradual wavy boundary.

\<@33\>Bt3---32 to 54 inches; 30 percent reddish yellow (7.5YR 6/8), 30
percent yellowish red (5YR 5/8), 20 percent red (2.5YR 4/8), and 20
percent light gray (10YR 7/1) clay loam; moderate medium subangular
blocky structure; firm; common faint clay films on faces of peds; areas
of reddish yellow, yellowish red, and red are masses of iron
accumulation; areas of light gray are iron depletions; very strongly
acid; gradual wavy boundary.

\<@33\>BC---54 to 80 inches; 25 percent brownish yellow (10YR 6/8), 25
percent reddish yellow (7.5YR 6/8), 25 percent yellowish red (5YR 5/8),
and 25 percent light gray (10YR 7/1) sandy clay loam; massive; firm;
areas of brownish yellow, reddish yellow, and yellowish red are masses
of iron accumulation; areas of light gray are iron depletions; very
strongly acid.

\<@8\>The solum ranges from 40 to 60 inches in thickness. Reaction
ranges from extremely acid to strongly acid throughout the profile,
except for the surface layer in areas where lime has been applied. The
content of coarse fragments, mainly nodules or channers of ironstone,
ranges from 5 to 25 percent, by volume, in the A and E horizons and is
less than 15 percent, by volume, in the Bt, BC, and C horizons.

\<@32\>The A or Ap horizon has hue of 10YR or 7.5YR, value of 3 to 5,
and chroma of 2 to 4.

\<@32\>The E horizon, where present, has hue of 10YR, value of 5 or 6,
and chroma of 2 to 4. It is loamy sand, loamy fine sand, fine sandy
loam, loam, or their gravelly analogues.

\<@32\>The upper part of the Bt horizon commonly has hue of 7.5YR or
10YR, value of 4 to 6, and chroma of 6 to 8. It has few or common
redoximorphic accumulations in shades of yellow, olive, brown, and red
and redoximorphic depletions in shades of brown and gray. The texture
commonly is clay loam or clay. In some pedons, however, it is sandy clay
loam.

\<@32\>The lower part of the Bt horizon has a range in color similar to
that of the upper part, or it does not have a dominant matrix color and
is multicolored in shades of brown, yellow, gray, and red. It has common
or many redoximorphic accumulations in shades of yellow, olive, brown,
and red and redoximorphic depletions in shades of brown and gray. It is
clay loam, clay, or silty clay.

\<@32\>The BC horizon, where present, typically does not have a dominant
matrix color and is multicolored in shades of brown, yellow, gray, and
red. It is sandy clay loam, clay loam, or clay. The quantity of thin
strata or pockets of finer- or coarser-textured sediments ranges from
none to common.

\<@32\>The C horizon, where present, has the same range in color as the
BC horizon. It is firm or very firm and is massive. It is clay loam,
clay, silty clay, or sandy clay loam. Most pedons have one or more thin,
discontinuous strata of ironstone and thin strata or pockets of finer-
or coarser-textured sediments.