IDENTIFIERS

  • Current Taxon Name (Soil Name): Darwin
  • OSD
  • Series Extent
  • User Site ID: 1978IL119057
  • User Pedon ID: 1978IL119057
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 78IL119057
  • NCSS Pedon Lab Data NASIS Record ID - 20981
  • 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: 38.7804029
  • Std. Longitude: -90.0623413
  • Datum: WGS84
  • Township: 4N
  • Range: 9W
  • Section: 23
  • PLSS Details: 1090 feet S & 1370 feet E of the center
  • State: Illinois
  • County: IL119—Madison
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: IL119—Madison County, Illinois
  • 7.5 Minute USGS Quad: 38090-G1—Wood River, Illinois

    • PEDON

  • Current Taxonomic Class: Fine, smectitic, mesic Fluvaquentic Vertic Endoaquolls
  • Current Taxon Kind: series
  • Pedon Type: map unit inclusion
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 57
  • Correlated Information:
  • Soil Name - Darwin
  • PSC - 25 to 100 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - aquic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Darwin
  • Classificaton Date - 10/1/1977
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: fine-textured alluvium
  • Landscape: river valley
  • Landform: flood plain
  • Runoff: low
  • Drainage Class: poorly
  • Flooding: occasional flooding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/1/1977 (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

    mollic epipedon

    cambic horizon

    0—23

    23—165

    —-

    —-
    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

    2

    —

    —

    131

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    Ap—0 to 23 centimeters (0.0 to 9.1 inches); very dark gray (10YR 3/1), dark grayish brown (10YR 4/2), dry; silty clay; moderate very fine subangular blocky structure; firm; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # IL25901
    B1g—23 to 56 centimeters (9.1 to 22.0 inches); dark gray (5Y 4/1), grayish brown (10YR 5/2), dry; silty clay; 5 percent strong brown (7.5YR 4/6) fine distinct and 5 percent dark yellowish brown (10YR 4/4) fine distinct mottles; moderate fine subangular blocky structure; very firm; distinct black (5Y 2/1), moist, and very dark gray (5Y 3/1), moist, clay films on all faces of peds; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # IL25902. continuous - phpvsfiid 480626; continuous - phpvsfiid 480626
    B21g—56 to 99 centimeters (22.0 to 39.0 inches); dark gray (5Y 4/1) silty clay; 1 percent light yellowish brown (2.5Y 6/4) fine distinct and 10 percent strong brown (7.5YR 5/8) fine distinct mottles; moderate medium angular blocky structure; very firm; slickensides (pedogenic) on all faces of peds and faint dark gray (5Y 4/1), moist, clay films on all faces of peds; 10 percent fine prominent spherical iron-manganese concretions in matrix; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # IL25903. continuous - phpvsfiid 480625; continuous - phpvsfiid 480625
    B22g—99 to 142 centimeters (39.0 to 55.9 inches); dark gray (5Y 4/1) silty clay; 5 percent strong brown (7.5YR 5/8) medium distinct and 5 percent yellowish brown (10YR 5/8) medium distinct mottles; moderate medium prismatic structure; very firm; faint dark gray (10YR 4/1), moist, clay films on all faces of peds; 10 percent fine prominent spherical iron-manganese concretions in matrix; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # IL25904. continuous - phpvsfiid 480627; continuous - phpvsfiid 480627
    B23g—142 to 165 centimeters (55.9 to 65.0 inches); gray (5Y 5/1) silty clay; 5 percent reddish brown (2.5YR 5/4) medium distinct and 5 percent brown (7.5YR 4/4) medium distinct mottles; weak medium prismatic structure; firm; faint dark gray (10YR 4/1), moist, clay films on all faces of peds; 10 percent medium prominent spherical iron-manganese concretions in matrix; fragments; neutral, pH 7.0. Lab sample # IL25905. continuous - phpvsfiid 480628; continuous - phpvsfiid 480628