IDENTIFIERS

  • Current Taxon Name (Soil Name): Atlas
  • OSD
  • Series Extent
  • User Site ID: 1978IL095022
  • User Pedon ID: 1978IL095022
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 78IL095022
  • NCSS Pedon Lab Data NASIS Record ID - 21013
  • Print Date: 5/20/2024

    • 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: 41.0510119
  • Std. Longitude: -90.0813756
  • Datum: WGS84
  • Township: 12N
  • Range: 4E
  • Section: 6
  • PLSS Details: 198 feet W & 1155 feet N of the SE corner
  • State: Illinois
  • County: IL095—Knox
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: IL095—Knox County, Illinois
  • 7.5 Minute USGS Quad: 41090-A1—Victoria, Illinois

    • PEDON

  • Describers Name: RDW
  • Current Taxonomic Class: Fine, smectitic, mesic Aeric Chromic Vertic Epiaqualfs
  • Current Taxon Kind: series
  • Pedon Type: map unit inclusion
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 22
  • Correlated Information:
  • Soil Name - Atlas
  • PSC - 28 to 78 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - aquic
  • Moisture Subclass - aeric
  • Sampled As Information:
  • Soil Name - Atlas
  • Classificaton Date - 10/1/1978
  • Dynamic Soil Properties:
  • Erosion Class - 3
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Peoria loess over Illinoian till with strongly developed Sangamon age paleosol
  • Landscape: till plain
  • Landform: drainageway
  • Hill Slope Profile: backslope
  • Runoff: high
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/1/1978 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—15

    28—152

    —-

    —-
    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

    14

    —

    —

    231

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; silty clay loam; 1 percent yellowish brown (10YR 5/4) fine faint mottles; weak fine subangular blocky structure; friable; 1 percent by volume rounded strongly coherent cemented mixed fragments; strongly acid, pH 5.3; abrupt smooth boundary. Lab sample # IL25678
    B1—15 to 28 centimeters (5.9 to 11.0 inches); yellowish brown (10YR 5/4) silty clay loam; 1 percent grayish brown (10YR 5/2) fine faint and 1 percent yellowish brown (10YR 5/8) fine faint mottles; weak fine subangular blocky structure; friable; distinct brown (10YR 4/3), moist, clay films on surfaces along root channels; 1 percent by volume rounded strongly coherent cemented mixed fragments; neutral, pH 7.0; abrupt smooth boundary. Lab sample # IL25679. patchy - phpvsfiid 480376; patchy - phpvsfiid 480376
    IIB21t—28 to 38 centimeters (11.0 to 15.0 inches); dark gray (10YR 4/1) silty clay loam; 1 percent strong brown (7.5YR 5/6) fine distinct mottles; weak fine angular blocky structure; firm; faint gray (10YR 5/1), moist, clay films on all faces of peds and faint very dark gray (10YR 3/1), moist, clay films on all faces of peds; 1 percent by volume rounded strongly coherent cemented mixed fragments; slightly acid, pH 6.3; abrupt smooth boundary. Lab sample # IL25680. discontinuous - phpvsfiid 480375; patchy - phpvsfiid 480374; discontinuous - phpvsfiid 480375; patchy - phpvsfiid 480374
    IIB22tg—38 to 64 centimeters (15.0 to 25.2 inches); dark grayish brown (2.5Y 4/2) silty clay; 10 percent yellowish brown (10YR 5/6) fine distinct mottles; weak medium prismatic structure; very firm; 1 percent prominent manganese coatings in matrix; 1 percent by volume rounded strongly coherent cemented dolomite (dolostone) fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # IL25681
    IIB23tg—64 to 117 centimeters (25.2 to 46.1 inches); grayish brown (2.5Y 5/2) silty clay; 1 percent yellowish brown (10YR 5/6) fine prominent and 10 percent yellowish brown (10YR 5/4) fine prominent mottles; weak medium prismatic structure; very firm; 1 percent prominent manganese coatings in matrix; 1 percent by volume rounded strongly coherent cemented dolomite (dolostone) fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # IL25682
    IIB24tg—117 to 152 centimeters (46.1 to 59.8 inches); gray (5Y 5/1) silty clay; 10 percent yellowish brown (10YR 5/6) fine prominent mottles; weak medium prismatic structure; very firm; 10 percent prominent iron-manganese concretions in matrix; 1 percent by volume rounded strongly coherent cemented dolomite (dolostone) fragments; slightly acid, pH 6.3. Lab sample # IL25683