LOCATION LYDICK INEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Mollic Hapludalfs
TYPICAL PEDON: Lydick loam - cultivated field. (Colors are for moist soil.)
Ap--0 to 7 inches; very dark grayish brown (10YR 3/2) loam; weak medium granular structure; friable; strongly acid; abrupt smooth boundary. (6 to 10 inches thick)
A2--7 to 10 inches; brown (10YR 4/3) loam; weak medium platy structure; friable; very dark grayish brown (10YR 3/2) worm casts; very strongly acid; clear wavy boundary. (2 to 7 inches thick)
B21t--10 to 18 inches; yellowish brown (10YR 5/4) clay loam; moderate medium subangular blocky structure; firm; thin discontinuous dark yellowish brown (10YR 3/4) clay films on faces of some peds; very strongly acid; gradual wavy boundary.
B22t--18 to 31 inches; dark yellowish brown (10YR 4/4) clay loam; moderate medium and coarse subangular blocky structure; firm; thin discontinuous dark yellowish brown (10YR 3/4) clay films on some faces of peds; very strongly acid; gradual wavy boundary.
B23t--31 to 45 inches; yellowish brown (10YR 5/4) sandy clay loam; weak coarse subangular blocky structure; firm; 10 percent pebbles; mostly shale; few yellowish red (5YR 4/6) iron stains; thin discontinuous dark yellowish brown (10YR 3/4) clay films on faces of some peds and coating rock fragments; very strongly acid; gradual wavy boundary. (Combined thickness of B2 horizon is 22 to 44 inches)
B31--45 to 55 inches; brown (10YR 5/3) clay loam; weak medium subangular blocky structure; firm; 10 to 15 percent shale fragments; medium acid; gradual wavy boundary. (5 to 15 inches thick)
B32--55 to 62 inches; brown (10YR 5/3) sandy loam; weak medium subangular blocky structure; very friable; 10 percent shale fragments; medium acid; gradual wavy boundary. (0 to 9 inches thick)
C--62 to 70 inches; yellowish brown (10YR 5/4) sand; single grained; loose; few small fragments of shale; medium acid.
TYPE LOCATION: Lake County, Indiana; 940 feet south and 200 feet east of northwest corner of NE1/4, sec. 26, T. 33 N., R. 8 W.
RANGE IN CHARACTERISTICS: Solum thickness typically is 50 to 60 inches and ranges from 42 to 72 inches. Sola are typically strongly to very strongly acid.
The Ap or A1 horizon is 7 to 10 inches thick. It has 10YR hue, value of 2 or 3 and chroma of 1 through 3. It is commonly loam and ranges to sandy loam.
The A2 horizon has 10YR hue, value of 4 or 5 and chroma of 2 through 4. It is commonly loam and ranges to sandy loam.
The B2 horizon has hue of 10YR or 7.5YR, value of 4 or 5 and chroma of 3 through 6. It is typically clay loam to sandy clay loam and sub-horizons range to loam, sandy loam and loamy sand. The B horizon has 5 to 15 percent coarse fragments mostly shale. The C horizon typically contains strata of sand, gravelly sand, sandy clay loam, loam and sandy loam high in shale fragments. It is medium acid to neutral in the upper part and moderately alkaline below 6 to 8 feet.
COMPETING SERIES: These are the Argyle, Baltimore, Bassett, Blooming, Cadmus, Caleb, Crocker, Dowagiac, Dunbridge, Gara, Lester, Longlois, Mohawk, Neda, Octagon, Oneco, Orwood, Racine, Razort, Renox, Sunfield, Waucoma, and Winneshiek series in the same family. Argyle, Baltimore and Oneco have redder hue. Bassett, Blooming, Cadmus, Crocker, Lester and Racine soils lack stratification. Caleb, Lara and Sunfield soils lack shale fragments. Dowagiac soils have sand or loamy sand at depths of less than 40 inches. Dunbridge and Winneshiek soils have bedrock at less than 40 inches. Longlois soils have more clay in the Bt and has calcareous gravel and sand at the base of the sola. Mohawk, Neda, Octagan, Razort and Renox soils have less acid and thinner sola. Orwood soils lack coarse fragments. Waucoma soils have clay or silty clay IIB horizon.
GEOGRAPHIC SETTING: The Lydick soils are on nearly level to gently sloping topography. Slopes are commonly 0 to 6 percent. The regolith is glacial outwash that is fairly high in shale and low in carbonates. Summers are hot and winters are cold. Mean annual temperature ranges from 45 to 57 degrees F., and average annual precipitation from 30 to 40 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: Alida soils, a wetter member of the same drainage sequence, is the commonest associate. Others are the Door, Tracy, Hanna and Quinn soils.
DRAINAGE AND PERMEABILITY: Well drained. Surface runoff is slow to very slow. Permeability is moderate.
USE AND VEGETTION: Largely under cultivation; corn, soybeans, small grain and hay are major crops. Native vegetation was forest and grass.
DISTRIBUTION AND EXTENT: Northern Indiana and possibly southern Michigan. The series is of moderate extent, estimated 30,000 to 40,000 acres.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Indianapolis, Indiana
SERIES ESTABLISHED: LaPorte County, Indiana, 1934.
REMARKS: This soil was formerly classified as Gray Brown Podzolic soils intergrading to Brunizems. The concept of this series has not been changed.