IDENTIFIERS

  • Current Taxon Name (Soil Name): Clarence
  • OSD
  • Series Extent
  • User Site ID: S1977IL075007
  • User Pedon ID: S1977IL075007
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2791
  • NCSS Pedon Lab Data NASIS Record ID - 37371
  • Print Date: 11/21/2024

    • LOCATION

  • Location In Web Soil Survey
  • AOI is roughly a square mile and pedon is marked in the center.
  • Location in SoilWeb
  • Location in Google Maps
  • Std. Latitude: 40.6394691
  • Std. Longitude: -88.1197510
  • Datum: WGS84
  • Township: 25N
  • Range: 10E
  • Section: 7
  • PLSS Details: 2415 feet N and 126 feet E of SW corner
  • Location Description: About 2 1/2 miles S of Thawville.
  • State: Illinois
  • County: IL075—Iroquois
  • Non-MLRA Soil Survey Area: IL075—Iroquois County, Illinois

    • PEDON

  • Describers Name: L. M. Kiefer, J. W. Scott, D. Fehrenbacher
  • Current Taxonomic Class: Fine, illitic, mesic Aquic Argiudolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 7
  • Correlated Information:
  • Soil Name - Clarence
  • PSC - 23 to 73 cm.
  • Classificaton Date - 12/13/2019
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Clarence
  • Classificaton Date - 8/26/1977
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: dead ice moraine
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/26/1977 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    densic contact

    0—23

    23—129

    129—129

    —23—

    —106—

    —0—
    Setting and Climate
    Slope Slope Length USLE Upslope Length Elev. Corr. Elev Aspect MAP REAP FFD MAAT MSAT MWAT MAST MSST MWST MFFP PE Index Climate Station ID Climate Station Name Climate Station Type
    % m degrees mm mm C mm

    1

    —

    —

    —

    —

    914

    —

    —

    10.6

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 23 centimeters (0.0 to 9.1 inches); very dark grayish brown (10YR 3/2) and very dark grayish brown (10YR 3/2) rubbed, dark gray (10YR 4/1), dry; silty clay loam; weak fine subangular blocky parts to weak medium granular structure; friable; fragments; moderately acid, pH 5.9, hellige-truog; clear smooth boundary. Lab sample # 40A22032
    Bt1—23 to 38 centimeters (9.1 to 15.0 inches); very dark grayish brown (10YR 3/2) and very dark grayish brown (10YR 3/2) rubbed, dark gray (10YR 4/1), dry; silty clay; moderate medium prismatic parts to moderate fine subangular blocky structure; firm; distinct black (10YR 2/1), moist, organoargillans on faces of peds; 1 percent fine distinct olive brown (2.5Y 4/4) masses of oxidized iron in matrix and 3 percent fine prominent strong brown (7.5YR 5/6) iron concretions in matrix; fragments; slightly acid, pH 6.4, hellige-truog; clear smooth boundary. Lab sample # 40A22033
    2Bt2—38 to 58 centimeters (15.0 to 22.8 inches); olive brown (2.5Y 4/4) silty clay; 3 percent dark grayish brown (2.5Y 4/2) medium faint mottles; weak medium prismatic parts to moderate fine subangular blocky structure; firm; distinct black (10YR 2/1), moist, organoargillans on faces of peds and 10 percent distinct pressure faces on vertical faces of peds; 3 percent fine prominent strong brown (7.5YR 5/6) iron concretions in matrix and 3 percent medium distinct dark grayish brown (2.5Y 4/2) iron depletions in matrix; fragments; neutral, pH 6.9, hellige-truog; clear smooth boundary. Lab sample # 40A22034
    2Bt3—58 to 71 centimeters (22.8 to 28.0 inches); olive brown (2.5Y 4/4) silty clay; 3 percent yellowish brown (10YR 5/6) fine distinct mottles; weak coarse prismatic parts to moderate medium subangular blocky structure; firm; distinct dark gray (5Y 4/1), moist, clay films on faces of peds and 10 percent distinct pressure faces on vertical faces of peds; 3 percent fine distinct yellowish brown (10YR 5/6) masses of oxidized iron in matrix and 3 percent fine prominent very dark grayish brown (10YR 3/2) iron-manganese masses in matrix; fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 40A22035. Few slickensides.
    2Bt4—71 to 102 centimeters (28.0 to 40.2 inches); olive brown (2.5Y 4/4) silty clay; 3 percent yellowish brown (10YR 5/6) medium distinct mottles; moderate very coarse prismatic parts to moderate coarse subangular blocky structure; very firm; distinct pressure faces on vertical faces of peds and distinct gray (5Y 5/1), moist, clay films on faces of peds; 3 percent fine prominent yellowish brown (10YR 5/8), moist, iron-manganese masses in matrix and 3 percent fine prominent very dark grayish brown (10YR 3/2), moist, iron-manganese concretions in matrix and 3 percent medium distinct yellowish brown (10YR 5/6), moist, masses of oxidized iron in matrix; fragments; slightly alkaline, pH 7.4, hellige-truog; gradual smooth boundary. Lab sample # 40A22036. Few slickensides.
    2BCt—102 to 130 centimeters (40.2 to 51.2 inches); gray (5Y 5/1) silty clay; 3 percent olive brown (2.5Y 4/4) medium prominent and 3 percent yellowish brown (10YR 5/6) fine prominent mottles; weak very coarse prismatic structure; very firm; faint gray (5Y 6/1), moist, clay films on faces of peds and 10 percent prominent very pale brown (10YR 8/2), moist, carbonate coats on faces of peds; 3 percent fine prominent black (7.5YR 2/1), moist, iron-manganese concretions in matrix and 3 percent medium prominent olive brown (2.5Y 4/4), moist, masses of oxidized iron in matrix and 3 percent fine prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron in matrix; 1 percent fine noncoherent cemented white (10YR 8/1) carbonate masses; fragments; slight effervescence; slightly alkaline, pH 7.7, hellige-truog; clear smooth boundary. Lab sample # 40A22037
    2Cd—130 to 152 centimeters (51.2 to 59.8 inches); gray (5Y 5/1) silty clay; structureless massive; very firm; prominent greenish gray (5GY 6/1), moist, clay films on vertical faces of peds; 10 percent medium prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron in matrix and 25 percent medium prominent olive brown (2.5Y 4/4), moist, masses of oxidized iron in matrix; 3 percent fine noncoherent cemented white (10YR 8/1) carbonate masses; fragments; strong effervescence; moderately alkaline, pH 7.9, hellige-truog. Lab sample # 40A22038