IDENTIFIERS

  • Current Taxon Name (Soil Name): Osco
  • OSD
  • Series Extent
  • User Site ID: 1984IL011029
  • User Pedon ID: 1984IL011029
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 84IL011029
  • NCSS Pedon Lab Data NASIS Record ID - 21689
  • Print Date: 11/23/2024

    • 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: 41.5698250
  • Std. Longitude: -89.4182667
  • Datum: WGS84
  • Township: 18N
  • Range: 9E
  • Section: 2
  • PLSS Details: 1400 feet W & 318 feet N of SE corner
  • Location Description: Ohio Township
  • Map Unit: 86B2—Osco silt loam, 2 to 5 percent slopes, eroded
  • Country: US—United States
  • State: Illinois
  • County: IL011—Bureau
  • MLRA: 108—Illinois and Iowa Deep Loess and Drift
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-SPI—Springfield, Illinois
  • Non-MLRA Soil Survey Area: IL011—Bureau County, Illinois
  • 7.5 Minute USGS Quad: 41089-E4—Ohio, Illinois

    • PEDON

  • Describers Name: D.B. Rahe & K.G. Kroeger
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Mollic Hapludalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 29
  • Correlated Information:
  • Soil Name - Osco
  • PSC - 20 to 70 cm.
  • Classificaton Date - 1/4/2010
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Tama
  • Taxon Kind - taxadjunct
  • Classificaton Date - 3/1/1984
  • Classifier - D.B. Rahe & K.G. Kroeger
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess
  • Landscape: till plain
  • Landform: ground moraine
  • Geomorphic Component Hills: side slope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/28/1984 (actual site observation date)
  • Data Collector: M.J. Walczynski & W.A. Ebert
  • Air Photo ID: A.S 7
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - close-grown crop
  • 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

    0—20

    20—107

    —20—

    —87—
    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

    3

    —

    —

    269.5

    —

    85

    825

    —

    170

    11

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark brown (10YR 2/2), dark grayish brown (10YR 4/2), dry; silt loam; moderate medium granular structure; friable; 3.0 fine roots; fragments; neutral, pH 6.9; abrupt smooth boundary. Lab sample # IL30581
    Bt1—20 to 36 centimeters (7.9 to 14.2 inches); brown (10YR 4/3) silty clay loam; moderate fine subangular blocky structure; friable; 3.0 fine roots; 50 percent distinct very dark grayish brown (10YR 3/2) organoargillans on all faces of peds; fragments; slightly acid, pH 6.2; clear smooth boundary. Lab sample # IL30582
    Bt2—36 to 53 centimeters (14.2 to 20.9 inches); dark yellowish brown (10YR 4/4) silty clay loam; moderate fine subangular blocky structure; friable; 0.6 fine roots; 50 percent distinct brown (10YR 4/3) clay films on all faces of peds; fragments; moderately acid, pH 6.0; clear smooth boundary. Lab sample # IL30583
    Bt3—53 to 76 centimeters (20.9 to 29.9 inches); dark yellowish brown (10YR 4/4) silty clay loam; moderate medium subangular blocky structure; friable; 0.6 fine roots; 50 percent distinct brown (10YR 4/3) clay films on all faces of peds; 1 percent fine iron-manganese concretions; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # IL30584
    Bt4—76 to 91 centimeters (29.9 to 35.8 inches); brown (10YR 5/3) silty clay loam; weak medium prismatic, and moderate medium subangular blocky structure; friable; 0.6 fine roots; 50 percent distinct brown (10YR 4/3) clay films on all faces of peds; 1 percent fine iron-manganese concretions and 1 percent fine distinct strong brown (7.5YR 5/6) masses of oxidized iron and 1 percent fine faint grayish brown (10YR 5/2) iron depletions; fragments; slightly acid, pH 6.2; clear smooth boundary. Lab sample # IL30585
    Bt5—91 to 107 centimeters (35.8 to 42.1 inches); brown (10YR 5/3) silt loam; moderate medium prismatic, and moderate medium subangular blocky structure; friable; 0.6 fine roots; 25 percent distinct dark grayish brown (10YR 4/2) clay films on all faces of peds; 1 percent fine iron-manganese concretions and 1 percent fine faint grayish brown (10YR 5/2) iron depletions and 10 percent fine distinct strong brown (7.5YR 5/6) masses of oxidized iron; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # IL30586
    Bt6—107 to 132 centimeters (42.1 to 52.0 inches); brown (10YR 5/3) silt loam; weak medium prismatic, and weak medium subangular blocky structure; friable; 0.6 fine roots; 25 percent distinct dark grayish brown (10YR 4/2) clay films on all faces of peds; 1 percent fine iron-manganese concretions and 1 percent very fine distinct strong brown (7.5YR 5/6) masses of oxidized iron and 10 percent fine faint dark grayish brown (10YR 4/2) iron depletions; fragments; slightly acid, pH 6.4; clear smooth boundary. Lab sample # IL30587
    Bt7—132 to 152 centimeters (52.0 to 59.8 inches); brown (10YR 5/3) silt loam; weak medium prismatic structure; friable; 10 percent distinct dark grayish brown (10YR 4/2) clay films on all faces of peds; 10 percent fine iron-manganese concretions and 10 percent fine faint grayish brown (10YR 5/2) iron depletions and 10 percent fine distinct strong brown (7.5YR 5/6) masses of oxidized iron; fragments; neutral, pH 6.6. Lab sample # IL30588