LOCATION ALGIERS OH+IN

Established Series
Rev. DRM
11/2021

ALGIERS SERIES

The Algiers series consists of very deep, somewhat poorly drained soils formed in 51 to 91 cm (20 to 36 inches) of recent light colored alluvium overlying a buried dark colored soil. These soils are on flood plains or low terraces. Slope ranges from 0 to 2 percent. Mean annual precipitation is about 940 mm (37 inches), and mean annual air temperature is about11 degrees C (52 degrees F).

TAXONOMIC CLASS: Fine-loamy, mixed, superactive, nonacid, mesic Aquic Udifluvents

TYPICAL PEDON: Algiers silt loam, in a cultivated field with a slope of less than one percent on the flood plain of Kings Creek at an elevation of about 345 meters (1133 feet) above mean sea level. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 20 cm (0 to 8 inches); dark grayish brown (10YR 4/2) silt loam, light brownish gray (10YR 6/2) dry; moderate fine granular structure; friable; neutral; abrupt smooth boundary. [15 to 25 cm (6 to 10 inches) thick]

C--20 to 51 cm (8 to 20 inches); dark grayish brown (10YR 4/2) silt loam; massive; friable; neutral; abrupt wavy boundary. [25 to 84 cm (10 to 33 inches) thick]

2Ab--51 to 81 cm (20 to 32 inches); very dark gray (10YR 3/1) silty clay loam; moderate fine and medium subangular blocky structure; firm; neutral; clear smooth boundary. [25 to 61 cm (10 to 24 inches) thick]

2Bgb--81 to 107 cm (32 to 42 inches); dark gray (10YR 4/1) silty clay loam; moderate medium subangular blocky structure; firm; common medium prominent yellowish brown (10YR 5/6) masses of iron accumulation and faint grayish brown (2.5Y 5/2) iron depletions; 5 percent gravel; neutral; clear smooth boundary. [20 to 61 cm (8 to 24 inches) thick]

2BCgb--107 to 140 cm (42 to 55 inches); dark gray (10YR 4/1) clay loam; weak coarse subangular blocky structure; firm; many medium prominent yellowish brown (10YR 5/6) masses of iron accumulation and common fine faint grayish brown (2.5Y 5/2) iron depletions; 10 percent gravel; slightly effervescent; slightly alkaline; clear wavy boundary. [0 to 46 cm (18 inches) thick]

2C--140 to 183 cm (55 to 72 inches); grayish brown (2.5Y 5/2) very gravelly sand; single grain; loose; common medium prominent yellowish brown (10YR 5/6) masses of iron accumulation; 60 percent gravel; violently effervescent; moderately alkaline.

TYPE LOCATION: Champaign County, Ohio; 2.2 miles west of Cable, in Wayne Township; 1/2 mile northwest of former intersection of State Highway 296 and Dogleg Road; 50 feet west of Dogleg Road and 50 feet south of Kings Creek.

RANGE IN CHARACTERISTICS:
Depth to the buried soil (2Ab horizon): 51 to 91 cm (20 to 36 inches)
Depth to the 2C horizon: 114 to more than 152 cm (45 to more than 60 inches)

Ap horizon:
Hue: 10YR or 2.5Y
Value: 4 or 5 (6 or more dry)
Chroma: 2 or 3
Texture: silt loam or loam
Rock fragment content: 0 to 5 percent
Reaction: slightly acid or neutral

A horizon, where present:
Thickness: 2.5 to 8 cm (1 to 3 inches)
Hue: 10YR
Value: 3
Chroma: 1 or 2
Texture: silt loam or loam
Rock fragment content: 0 to 5 percent
Reaction: slightly acid or neutral

C horizon:
Hue: 10YR or 2.5Y
Value: 4 or 5
Chroma: 2 or 3
Texture: silt loam, loam, or silty clay loam with subhorizons ranging to sandy loam or fine sandy loam
Redox features: low chroma depletions with matrix chroma of 3 are permitted at depths of more than 50 cm (20 inches)
Rock fragment content: 0 to 5 percent
Reaction: slightly acid or neutral

2Ab horizon:
Hue: 10YR or 2.5Y, or is neutral
Value: 2 or 3
Chroma: 0 to 2
Texture: silt loam, loam, silty clay loam, or clay loam
Rock fragment content: 0 to 14 percent
Reaction: slightly acid to slightly alkaline

2Bgb or 2BCgb horizon:
Hue: 10YR, 2.5Y, 5Y, or is neutral
Value: 4 or 5
Chroma: 0 to 2
Texture: commonly loam, silty clay loam, or clay loam, but thin subhorizons of silty clay are permitted
Redox features: few to many depletions or concentrations; depletions with chroma of 2 or less and matrix chroma of 1 occur within 50 to 102 cm (20 to 40 inches) of the surface
Rock fragment content: 0 to 14 percent
Reaction: slightly acid to slightly alkaline

2C horizon:
Hue: 10YR, 2.5Y, or 5Y
Value: 4 or 5
Chroma: 1 to 3
Texture: ranges from clay loam or silty clay loam to extremely gravelly sand
Redox features: few to many
Rock fragment content: 0 to 70 percent
Reaction: slightly acid to moderately alkaline

COMPETING SERIES: There are no other series in the same family. Series in similar families are the Dupo, Eel, Killbuck, Orion, Wallkill, and Washtenaw series. Dupo soils have silty textures over contrasting fine-textured material. Eel soils lack the buried dark-colored A horizon within a depth of 91 cm (36 inches). Killbuck and Washtenaw soils have chroma of 2 or less and redox features in the upper 50 cm (20 inches). Orion soils are coarse-silty. Wallkill soils have a buried Histosol within a depth of 102 cm (40 inches).

GEOGRAPHIC SETTING: Algiers soils are on flood plains or low terraces in the Wisconsinan glacial area or in flood plains in the Illinoian glacial area where the headwaters are in the Wisconsinan till area. Slope ranges from 0 to 2 percent. The soils formed in 51 to 91 cm (20 to 36 inches) of recent light colored alluvium overlying a buried Aquoll. Mean annual precipitation ranges from 813 to 1016 mm (32 to 40 inches). Mean annual air temperature ranges from 9 to 12 degrees C (48 to 54 degrees F).

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Eel, Genesee, Killbuck, Ross, Shoals, and Sloan series, all on similar topographic positions. Of these, only the poorly drained Killbuck soils have recent alluvium over a buried soil. Eldean, Ockley, Sleeth, Thackery, Lippincott, and Westland soils formed in outwash and are on nearby low terraces. Nearby soils formed in till include the series which are members of the Miamian and Morley drainage sequences.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Somewhat poorly drained. The potential for surface runoff is negligible or low. Saturated hydraulic conductivity is moderately high. Permeability is moderate. The soil is subject to occasional or frequent flooding.

USE AND VEGETATION: A major part of the Algiers soils is cultivated. Commonly grown crops include corn, soybeans, small grain, and forage crops. Other areas are in pasture or woodland. Native vegetation is elm, soft maple, sycamore, and other water-tolerant deciduous trees.

DISTRIBUTION AND EXTENT: Central, western, and southern Ohio and southern Indiana; MLRAs 111A, 111B, 111D, 111E, 114A, and 99. The type location is in MLRA 111A. The series is of moderate extent.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: AMHERST, MASSACHUSETTS

SERIES ESTABLISHED: Brown County, Ohio, 1930.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: from the surface to a depth of 20 cm (Ap horizon).
Buried soil: at 51 cm (top of the 2Ab horizon).
Aquic conditions: redox features in all horizons below a depth of 81 cm.

National Cooperative Soil Survey
U.S.A.