LOCATION GLENSTED MOEstablished Series
TAXONOMIC CLASS: Fine, smectitic, mesic Vertic Albaqualfs
TYPICAL PEDON: Glensted silt loam - on a 3 percent east-facing slope in a cultivated field. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 9 inches; very dark grayish brown (10YR 3/2) silt loam, grayish brown (10YR 5/2) dry; weak fine granular structure; friable; many fine roots; slightly acid; abrupt smooth boundary. (6 to 10 inches thick)
Btg1--9 to 14 inches; dark grayish brown (10YR 4/2) silty clay; strong fine and medium angular blocky structure; firm; many fine roots; few faint clay films on faces of peds; common fine prominent red (2.5YR 4/6) masses of iron accumulation throughout; strongly acid; gradual smooth boundary. (4 to 17 inches thick)
2Btg2--14 to 22 inches; dark grayish brown (10YR 4/2) silty clay; strong fine and medium angular blocky structure; firm; many fine roots; few faint clay films on faces of peds; common medium prominent strong brown (7.5YR 5/6) masses of iron accumulation throughout; few fine dark iron and manganese stains; 5 percent chert gravel; strongly acid; clear smooth boundary.
2Btg3--22 to 28 inches; grayish brown (10YR 5/2) silty clay; moderate fine and medium angular blocky structure; firm; many fine roots; few faint clay films on faces of peds; common medium prominent strong brown (7.5YR 5/6) masses of iron accumulation throughout; few fine iron and manganese stains; 5 percent chert gravel; slightly acid; clear smooth boundary. (Combined thickness of the 2Btg horizon is 12 to 24 inches thick.)
2BCg--28 to 33 inches; grayish brown (10YR 5/2) silty clay loam; moderate medium subangular blocky structure; firm; few very fine roots; common medium distinct yellowish brown (10YR 5/4) masses of iron accumulation and common medium faint gray (10YR 5/1) iron depletions throughout; few fine dark iron and manganese stains; 5 percent chert gravel; slightly acid; clear smooth boundary. (0 to 12 inches thick)
2Cg--33 to 62 inches; yellowish brown (10YR 5/6), gray (10YR 5/1) and grayish brown (10YR 5/2) silty clay loam; massive; firm; few very fine roots in upper part; the areas of gray and grayish brown colors are iron depletions; about 5 percent fine chert fragments; slightly acid.
TYPE LOCATION: Moniteau County, Missouri; 11 miles southwest of California; 2,400 feet east and 1,050 feet south of the northwest corner, sec. 6, T. 43 N., R. 16 W.; USGS Latham quadrangle, lat. 38 degrees 31 minutes 09 seconds N. and long. 92 degrees 44 minutes 08 seconds W.
RANGE IN CHARACTERISTICS: The particle size control section averages 42 to 48 percent clay.
The Ap horizon has hue of 10YR, value of 2 to 4, 4 or 5 dry; and chroma of 1 to 3. Reaction is strongly acid to neutral. Some pedons have a silt loam E horizon.
The Btg horizon has hue of 10YR or 2.5Y, value of 4 to 6 and chroma of 1 or 2. Masses of iron accumulation have hue of 2.5YR to 10YR, value of 4 to 6 and chroma of 4 to 6. It is silty clay loam or silty clay. Reaction is very strongly acid to slightly acid.
The 2Btg horizon has colors similar to the Btg horizon. It is silty clay loam, silty clay, clay, or clay loam and has from 1 to 30 percent chert gravel.
The 2BCg horizon has hue of 10YR or 7.5YR, value of 4 to 6, and chroma of 1 or 2. Masses of iron accumulation and iron depletions have hue of 2.5YR to 10YR, value of 4 to 8 and chroma of 1 to 6. It is silty clay loam or silty clay. Reaction is moderately acid to neutral.
The 2Cg horizon has colors similar to the BCg horizon. It is silt loam, silty clay loam or clay loam. Reaction is moderately acid to slightly alkaline.
COMPETING SERIES: These are the Adco, Appanoose, Awbrig, Belinda, Brooklyn, Chariton, Cisne, Cowden, Denny, Putnam, and Wagner series. Adco soils have a Bt horizon with a chroma of 3 or 4. Appanoose, Chariton, and Putnam soils have more than 48 percent clay in the particle size control section and do not have the 2B horizon. Awbrig soils have a base of the argillic horizon at 30 to 50 inches. Belinda soils do not have the 2B horizon with chert fragments. Brooklyn soils have a 2B horizon formed in loamy stratified outwash, alluvium or loam till. Cisne soils average less than 42 percent clay in the particle size control section and the 2B horizon is formed in reworked loess and till. Cowden and Denny soils have less clay in the particle size control section and do not have horizons with chert fragments. Wagner soils do not have horizons with chert fragments and formed in alluvium or lacustrine deposits.
GEOGRAPHIC SETTING: Glensted soils are on ridgetops and headslopes of drainages. Slopes range from of 0 to 5 percent. The soils formed in loess and in the underlying residuum from cherty limestone and shale. The mean annual temperature ranges from 54 to 57 degrees F, and mean annual precipitation ranges from 35 to 40 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Gerald, Creldon, Eldon, and Hoberg soils. Creldon, Gerald and Hoberg soils have fragipans. Eldon soils have more than 35 percent coarse fragments in the particle size control section. Creldon and Hoberg soils are in similar positions. Eldon soils commonly are downslope, but may be in a similar position. Gerald soils commonly are on nearly level ridgetops, but may be in similar positions.
DRAINAGE AND PERMEABILITY: Poorly drained. Runoff is medium. Permeability is slow. A perched water table has an upper limit of 0.5 to 1.5 feet during November to May in most years.
USE AND VEGETATION: Most areas are cultivated or in pasture or hayland. Native vegetation is tall prairie grasses.
DISTRIBUTION AND EXTENT: The Ozarks area of south-central Missouri (MLRA 116A). This series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Moniteau County, Missouri, 1953.
REMARKS: Diagnostic horizons and features recognized in this series are: Ochric epipedon - the zone from the surface of the soil to a depth of 9 inches (Ap horizon).
Argillic horizon - the zone from approximately 9 inches to 28 inches (Bt1, 2Btg1 and 2Btg2 horizons).