IDENTIFIERS

  • Current Taxon Name (Soil Name): Grantfork
  • OSD
  • Series Extent
  • User Site ID: 1978IL157032
  • User Pedon ID: 1978IL157032
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 78IL157032
  • NCSS Pedon Lab Data NASIS Record ID - 21058
  • 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: 38.1504847
  • Std. Longitude: -89.6061454
  • Datum: WGS84
  • Township: 4S
  • Range: 5W
  • Section: 25
  • PLSS Details: 1400 feet E & 1400 feet N of SW corner
  • State: Illinois
  • County: IL157—Randolph
  • MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain
  • Non-MLRA Soil Survey Area: IL157—Randolph County, Illinois
  • 7.5 Minute USGS Quad: 38089-B5—Coulterville, Illinois

    • PEDON

  • Describers Name: MEL, VAK
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, mesic Aeric Epiaqualfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: map unit inclusion
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 32
  • Correlated Information:
  • Soil Name - Grantfork
  • PSC - 28 to 78 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - aquic
  • Moisture Subclass - aeric
  • Sampled As Information:
  • Soil Name - Walshville
  • Classificaton Date - 7/1/1978
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Peoria loess over Illinoian till with strongly developed paleosol
  • Landscape: till plain
  • Landform: drainageway
  • Geomorphic Component Hills: side slope
  • Runoff: high
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/1/1978 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • 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

    20

    —

    —

    155

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 5 centimeters (0.0 to 2.0 inches); brown (10YR 4/3) silt loam; moderate medium granular structure; friable; 3.0 roots between peds; fragments; moderately acid, pH 6.0, lamotte-morgan; abrupt smooth boundary. Lab sample # IL26064; observed in push tube
    A2—5 to 15 centimeters (2.0 to 5.9 inches); dark yellowish brown (10YR 4/4) silt loam; moderate medium cloddy structure; friable; 3.0 roots between peds; fragments; moderately acid, pH 6.0, lamotte-morgan; abrupt smooth boundary. Lab sample # IL26065; observed in push tube
    B1—15 to 23 centimeters (5.9 to 9.1 inches); dark yellowish brown (10YR 4/4) silt loam; weak fine subangular blocky structure; friable; 3.0 roots between peds; 10 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds; 10 percent by volume rounded strongly coherent cemented mixed fragments; strongly acid, pH 5.4, lamotte-morgan; clear smooth boundary. Lab sample # IL26066; observed in push tube. patchy - phpvsfiid 480512; patchy - phpvsfiid 480512
    I-IIB21t—28 to 51 centimeters (11.0 to 20.1 inches); grayish brown (10YR 5/2) and brown (10YR 4/3) silty clay loam; 10 percent strong brown (7.5YR 5/6) medium distinct mottles; moderate medium prismatic parts to moderate medium angular blocky structure; firm; 3.0 roots between peds; faint gray (10YR 5/1), moist, clay films on all faces of peds; 10 percent by volume rounded strongly coherent cemented mixed fragments; neutral, pH 7.0, lamotte-morgan; clear smooth boundary. Lab sample # IL26067, IL26068; observed in push tube. Horizon split for sampling: IL26067 28 to 38 cm, IL26068 41 to 51 cm.; patchy - phpvsfiid 480510; patchy - phpvsfiid 480510
    IIB22t—58 to 79 centimeters (22.8 to 31.1 inches); gray (10YR 5/1) silty clay loam; 10 percent dark yellowish brown (10YR 4/6) medium distinct mottles; moderate medium prismatic parts to moderate medium angular blocky structure; very firm; 3.0 roots between peds; faint gray (10YR 5/1), moist, clay films on all faces of peds; 10 percent by volume rounded strongly coherent cemented mixed fragments; slightly alkaline, pH 7.5, lamotte-morgan; clear smooth boundary. Lab sample # IL26069; observed in push tube. continuous - phpvsfiid 480511; continuous - phpvsfiid 480511
    IIB23t—79 to 117 centimeters (31.1 to 46.1 inches); gray (10YR 5/1) clay loam; 10 percent yellowish brown (10YR 5/6) medium distinct mottles; moderate medium subangular blocky structure; very firm; 0.6 roots between peds; faint gray (10YR 5/1), moist, clay films on all faces of peds; 1 percent by volume rounded strongly coherent cemented mixed fragments; neutral, pH 7.3, lamotte-morgan; gradual smooth boundary. Lab sample # IL26070; observed in push tube. continuous - phpvsfiid 480508; continuous - phpvsfiid 480508
    IIB24t—117 to 152 centimeters (46.1 to 59.8 inches); grayish brown (10YR 5/2) silty clay loam; 10 percent dark yellowish brown (10YR 4/6) medium distinct mottles; moderate medium subangular blocky structure; very firm; 0.6 roots between peds; distinct gray (10YR 5/1), moist, and dark gray (10YR 4/1), moist, clay films on all faces of peds; 10 percent by volume rounded strongly coherent cemented mixed fragments; slightly alkaline, pH 7.4, lamotte-morgan. Lab sample # IL26071; observed in push tube. patchy - phpvsfiid 480509; patchy - phpvsfiid 480509