LOCATION CRAWLEYVILLE IN+ILEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Aeric Endoaqualfs
TYPICAL PEDON: Crawleyville loam - on a 1 percent slope in a cultivated field. (Colors are for moist conditions unless otherwise stated.)
Ap--0 to 9 inches; dark grayish brown (10YR 4/2) loam, light brownish gray (10YR 6/2) dry; moderate fine subangular blocky structure; friable; common fine roots; moderately acid; abrupt smooth boundary. (7 to 11 inches thick)
BE--9 to 12 inches; brown (10YR 5/3) sandy clay loam; weak fine subangular blocky structure; friable; common fine roots; few fine faint grayish brown (10YR 5/2) iron depletions in the matrix; few black (10YR 2/1) masses of iron and manganese accumulation; moderately acid; clear smooth boundary. (0 to 5 inches thick)
Bt--12 to 19 inches; yellowish brown (10YR 5/6) sandy clay loam; moderate medium subangular blocky structure; friable; few fine roots; thin continuous grayish brown (10YR 5/2) clay films on faces of peds; common fine distinct light brownish gray (10YR 6/2) iron depletions in the matrix; moderately acid; gradual smooth boundary.
Btg1--19 to 29 inches; light brownish gray (10YR 6/2) sandy clay loam; weak medium prismatic structure parting to weak fine subangular blocky; friable; few fine roots; thin continuous light brownish gray (10YR 6/2) clay films on faces of peds; common fine prominent yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; many medium prominent strong brown (7.5YR 5/6) masses of iron and manganese accumulation; very strongly acid; gradual smooth boundary.
Btg2--29 to 37 inches; light brownish gray (10YR 6/2) sandy clay loam; weak medium prismatic structure parting to weak fine subangular blocky; friable; few fine roots; thin discontinuous light gray (10YR 6/1) clay films on faces of peds; many medium prominent strong brown (7.5YR 5/6) masses of iron accumulation in the matrix; common brown (7.5YR 4/4) masses of iron and manganese accumulation; very strongly acid; gradual smooth boundary.
Btg3--37 to 45 inches; light brownish gray (10YR 6/2) fine sandy loam; weak medium prismatic structure parting to weak fine subangular blocky; friable; few fine roots; thin discontinuous light gray (10YR 6/1) clay films on faces of peds; many medium prominent strong brown (7.5YR 5/6) masses of iron accumulation in the matrix; common brown (7.5YR 4/4) masses of iron and manganese accumulation; very strongly acid; gradual smooth boundary. (Combined thickness of the Bt and Btg horizons ranges from 30 to 50 inches.)
BCg--45 to 50 inches; light gray (10YR 7/2) fine sandy loam; weak fine subangular blocky structure; friable; many fine prominent brown (7.5YR 4/4) masses of iron accumulation in the matrix; few black (10YR 2/1) and brown (7.5YR 4/4) masses of iron and manganese accumulation; very strongly acid; gradual smooth boundary. (3 to 10 inches thick)
Cg--50 to 60 inches; light gray (10YR 7/2) fine sandy loam; massive; friable; common fine prominent brown (7.5YR 4/4) masses of iron accumulation in the matrix; common brown (7.5YR 4/4) masses of iron and manganese accumulation; very strongly acid.
TYPE LOCATION: Gibson County, Indiana; about 2 miles west and 3 miles north of Johnson; 2140 feet south and 64 feet east of the center of sec. 21, T. 2 S., R.12 W.
RANGE IN CHARACTERISTICS: The depth to the base of the argillic is 40 to 60 inches. Rock fragment content is 0 to 3 percent throughout the series control section
The upper part of the series control section (Ap horizon) has hue of 10YR, value of 4 or 5, and chroma of 2 or 3. It is loam, silt loam or fine sandy loam. Reaction is moderately acid or slightly acid depending on liming history.
The middle part of the series control section (Btg, Bt horizon) has hue of 10YR, value of 5 to 7, chroma of 1 to 6, and is mottled. It is fine sandy loam, loam, sandy loam, or sandy clay loam. Reaction ranges from very strongly acid to moderately acid in the upper part but is only very strongly acid or strongly acid in the lower part.
The BE horizon, where present, has hue of 10YR, value of 4 or 5, and chroma of 2 or 3.
The lower part of the series control section (BCg, Cg horizon) has hue of 10YR, value of 5 to 7, chroma of 1 or 2, and is mottled. It is fine sandy loam, or sandy loam. Reaction is very strongly acid or strongly acid.
COMPETING SERIES: These are the Ayrshire, Capac, Digby, Jimtown, Mitiwanga, Mongle, Shadeland, Sleeth, Warnut (T) and Whitaker series. Ayrshire and Whitaker soils have a reaction that is less acid than strongly acid in the lower part of the series control section. Capac soils are less than 40 inches to the base of the argillic horizon. Digby, Jimtown and Sleeth soils have more than 15 percent gravel in the lower part of the series control section. Mitiwanga and Shadeland soils have bedrock at depths of less than 40 inches. Mongle soils have 5 to 50 percent rock fragments in the lower part of the series control section. Warnut (T) soils are in a drier soil climate
GEORGRAPHIC SETTING: Crawleyville soils are on river terraces. Slopes are 0 to 2 percent. These soils formed in leached loamy sediments of Wisconsinan Age. The mean annual air temperature ranges from 53 to 57 degrees F, the mean annual precipatation ranges from 40 to 45 inches, frost free days range from 180 to 210, and elevation is 360 to 600 feet above mean sea level.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the well drained Skelton soils on slightly higher areas and the poorly drained Vincennes soils on slightly lower areas and depressions.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained. In drained areas, depth to an intermittent apparent high water table is 0.5 to 2 feet from December to April in most years. Permeability is moderate. The potential for surface water runoff is low. These soils are subject to none to rare flooding
USE AND VEGETATION: Soils are mostly cropped to corn and soybeans. Winter wheat is the principal small grain. Native vegetation is hardwood trees.
DISTRIBUTION AND EXTENT: Southwest Indiana. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Indianapolis, Indiana
SERIES ESTABLISHED: Gibson County, Indiana, 1986.
REMARKS: Diagnostic horizons and features recognized in the pedon are: ochric epipedon - the zone from the surface to a depth of about 9 inches (Ap horizon); argillic horizon - the zone from approximately 12 to 45 inches (Bt, Btg1, Btg2, Btg3 horizons).
ADDITONAL DATA: S83IN51-3 Purdue University Soil Characterization Laboratory.