\<@37\>Chiefland Series

\<@33\>\<i\>*Depth class:*\<p\> Moderately deep

\<@33\>\<i\>*Drainage class:*\<p\> Moderately well drained

\<@33\>\<i\>*Permeability:*\<p\> Rapid in the A and E horizons, moderate
in the argillic horizon, and very slow in the Cr layer

\<@33\>\<i\>*Parent material:*\<p\> Sandy and loamy marine sediments
overlying limestone

\<@33\>\<i\>*Landscape:*\<p\> Gulf Coastal Lowlands on the lower Coastal
Plain

\<@33\>\<i\>*Landform:*\<p\> Sandy uplands

\<@33\>\<i\>*Landform position:*\<p\> Knolls and ridges

\<@33\>\<i\>*Commonly associated soils:*\<p\> Blanton, Kureb, Ortega,
and Otela soils

\<@33\>\<i\>*Slope:*\<p\> 0 to 5 percent

\<@33\>\<i\>*Taxonomic class:*\<p\> Loamy, siliceous, superactive,
thermic Arenic Hapludalfs

\<@27\>Typical Pedon

\<@30\>Chiefland fine sand, in an area of Otela, limestone
substratum-Chiefland-Kureb complex, 0 to 5 percent slopes, in Dixie
County; about 1,950 feet south and 610 feet east of the northwest corner
of sec. 35, T. 9 S., R. 13 E.

\<@23\>Ap---0 to 5 inches; very dark gray (10YR 3/1) fine sand;
salt-and-pepper appearance due to a mixture of white sand grains and
black organic material; weak fine granular structure; very friable; many
fine and medium roots; neutral; clear smooth boundary.

\<@33\>E1---5 to 17 inches; grayish brown (10YR 5/2) fine sand; common
fine and medium faint light brownish gray (10YR 6/2) splotches; single
grained; loose; common fine and medium and few coarse roots; neutral;
gradual wavy boundary.

\<@33\>E2---17 to 26 inches; pale brown (10YR 6/3) fine sand; single
grained; loose; few fine and very fine roots; few fine distinct
yellowish brown (10YR 5/6) masses of iron accumulation; neutral; abrupt
irregular boundary.

\<@33\>Bt---26 to 35 inches; yellowish brown (10YR 5/8) sandy clay loam;
weak medium subangular blocky structure; friable; sand grains coated and
bridged with clay; 2 to 5 percent, by volume, gravel-sized, soft,
angular limestone pebbles in the lower part; few very fine and fine
roots; neutral; abrupt irregular boundary.

\<@33\>Cr---35 inches; soft, weathered, fractured limestone bedrock that
can be dug with difficulty with a spade.

\<@27\>Range in Characteristics

\<@33\>\<i\>*Thickness of the solum:*\<p\> 20 to 40 inches

\<@33\>\<i\>*Depth to bedrock:*\<p\> 20 to 40 inches. Solution holes in
which the solum extends to depths below 40 inches occur in about 30
percent of the pedons. Limestone boulders are on the surface of many
areas, comprising 1 to 3 percent of the surface area.

\<@33\>\<i\>*Reaction:*\<p\> Strongly acid to neutral in the A horizon,
except where lime has been applied, and moderately acid to moderately
alkaline in the Bt horizon

\<@33\>\<i\>*Flooding:*\<p\> None

\<@23\>\<i\>*A or Ap horizon:*\<p\>

\<@31\>Color---hue of 10YR, value of 3 to 6, and chroma of 1 to 3

\<@31\>Texture---fine sand

\<@23\>\<i\>*E horizon:*\<p\>

\<@31\>Color---hue of 10YR, value of 6 or 7, and chroma of 2 to 6; or
hue of 7.5YR, value of 5 to 7, and chroma of 4 to 8. Some pedons have
few to many brown or yellow iron accumulations and few to common pockets
of uncoated sand grains.

\<@31\>Redoximorphic features---none to common iron masses and/or pore
linings in shades of brown, yellow, or red

\<@31\>Texture---sand or fine sand

\<@23\>\<i\>*Bt horizon:*\<p\>

\<@31\>Color---hue of 10YR or 7.5YR, value of 4 to 6, and chroma of 4 to
8. Some pedons have few to many iron accumulations in shades of red,
brown, or yellow.

\<@31\>Texture---sandy loam, fine sandy loam, or sandy clay loam. The
content of coarse limestone fragments ranges from 3 to 10 percent, by
volume. In solution holes, the texture of the Bt horizon is sandy clay
loam in the upper part and sandy clay in the lower part. Also, fine to
medium nodules of soft limestone are in the Bt horizon in solution
holes, but they normally make up less than 20 percent of the volume.

\<@23\>\<i\>*Cr layer:*\<p\>

\<@31\>Color---hue of 10YR, value of 6 to 8, and chroma of 1 to 4

\<@31\>Bedrock---soft, weathered, fractured limestone that has low to
high excavation difficulty. It typically has soft carbonate
accumulations that contain few to many fragments of hard limestone or
chert. It is highly irregular and complex. It is interspersed with
solution holes that are filled with minerals that range in texture from
sandy loam to sandy clay. The holes range from 4 to 12 inches in
diameter. The depth to limestone varies widely within short distances.

\<@23\>\<i\>*R layer (typically present):*\<p\>

\<@31\>Bedrock---hard, unweathered limestone that has very high or
extremely high excavation difficulty. In some pedons, it has solution
holes that range from 4 to 12 inches in diameter. The depth to limestone
varies widely within short distances.