IDENTIFIERS

  • Current Taxon Name (Soil Name): Clarence
  • OSD
  • Series Extent
  • Local Phase: eroded
  • User Site ID: 1987IL105012
  • User Pedon ID: 1987IL105012
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - IL SCL
  • Lab Pedon # - 87IL105012
  • NCSS Pedon Lab Data NASIS Record ID - 22255
  • User Project ID: 202011AUR038
  • Project Name: EVAL - MLRA 110 - Clarence silty clay loam, 4 to 6 percent slopes, eroded
  • 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: 40.9483556
  • Std. Longitude: -88.4344875
  • Datum: WGS84
  • Township: 29 N.
  • Range: 7 E.
  • Section: 33
  • Location Description: 47 meters (154 feet) south and 6 meters (20 feet) east of the northwest corner of sec. 33, T. 29 N., R. 7 E.; Livingston County, Illinois; USGS Saunemin, Illinois topographic quadrangle.
  • Map Unit: 147C2—Clarence silty clay loam, 4 to 6 percent slopes, eroded
  • State: Illinois
  • County: IL105—Livingston
  • MLRA: 110—Northern Illinois and Indiana Heavy Till Plain
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-AUR—Aurora, Illinois
  • Non-MLRA Soil Survey Area: IL105—Livingston County, Illinois
  • 7.5 Minute USGS Quad: 40088-H4—Saunemin, Illinois

    • PEDON

  • Describers Name: MK, PB
  • Current Taxonomic Class: Fine, illitic, mesic Aquic Argiudolls
  • Current Taxon Kind: taxadjunct
  • Pedon Type: representative pedon for component
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 12
  • Correlated Information:
  • Soil Name - Clarence
  • PSC - 23 to 61 cm.
  • Classificaton Date - 12/19/2019
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Clarence sicl, 4 to 6 percent slopes, eroded
  • Classificaton Date - 1/5/1987
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: thin mantle loess over silty clay till
  • Landscape: glaciated upland
  • Landform: ground moraine
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/5/1987 (actual site observation date)
  • Data Collector: MK, PB
  • Air Photo ID: 64
  • 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—61

    71—71

    —23—

    —38—

    —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

    6

    —

    —

    226

    —

    135

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); black (10YR 2/1), dark gray (10YR 4/1), dry; silty clay loam; 34 percent clay; moderate medium granular structure; friable; 4.0 fine roots; fragments; noneffervescent; neutral, pH 7.0, pH indicator solutions; abrupt smooth boundary.; observed in push tube
    Bt1—23 to 38 centimeters (9.1 to 15.0 inches); olive brown (2.5Y 4/4) silty clay; 45 percent clay; moderate medium subangular blocky structure; very firm; 0.5 very fine roots; 20 percent faint dark grayish brown (2.5Y 4/2), moist, clay films on faces of peds; 1 percent fine faint grayish brown (2.5Y 5/2), moist, iron depletions in matrix and 5 percent fine prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron in matrix; fragments; noneffervescent; slightly acid, pH 6.4, pH indicator solutions; clear smooth boundary.; observed in push tube
    Bt2—38 to 48 centimeters (15.0 to 18.9 inches); olive brown (2.5Y 4/4) silty clay; 50 percent clay; moderate fine prismatic parts to moderate medium subangular blocky structure; very firm; 0.5 very fine roots; 30 percent faint dark grayish brown (2.5Y 4/2), moist, clay films on faces of peds; 1 percent fine faint grayish brown (2.5Y 5/2), moist, iron depletions in matrix and 10 percent fine prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron in matrix; fragments; noneffervescent; neutral, pH 6.6, pH indicator solutions; clear smooth boundary.; observed in push tube
    Bt3—48 to 61 centimeters (18.9 to 24.0 inches); olive brown (2.5Y 4/4) silty clay; 55 percent clay; moderate medium prismatic structure; very firm; 0.5 very fine roots; 15 percent faint dark grayish brown (2.5Y 4/2), moist, clay films on faces of peds; 1 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions throughout and 10 percent medium distinct grayish brown (2.5Y 5/2), moist, iron depletions in matrix; fragments; very slight effervescence; slightly alkaline, pH 7.4, pH indicator solutions; clear smooth boundary.; observed in push tube
    BC—61 to 71 centimeters (24.0 to 28.0 inches); olive brown (2.5Y 4/4) silty clay; 50 percent clay; weak medium prismatic structure; very firm; 0.5 very fine roots; 1 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions throughout and 25 percent medium faint grayish brown (2.5Y 5/2), moist, iron depletions in matrix; fragments; slight effervescence; slightly alkaline, pH 7.4, pH indicator solutions; clear smooth boundary.; observed in push tube
    Cd—71 to 152 centimeters (28.0 to 59.8 inches); olive gray (5Y 5/2) silty clay; 55 percent clay; structureless massive; very firm; 0.5 very fine roots; 1 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions throughout and 15 percent medium prominent grayish brown (2.5Y 5/2), moist, iron depletions in matrix; 1 percent fine prominent gray (10YR 6/1) carbonate concretions throughout; fragments; violent effervescence; moderately alkaline, pH 8.0, pH indicator solutions.; observed in push tube