IDENTIFIERS

  • Current Taxon Name (Soil Name): Keomah
  • OSD
  • Series Extent
  • User Site ID: 1977IL073014
  • User Pedon ID: 1977IL073014
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 77IL073014
  • NCSS Pedon Lab Data NASIS Record ID - 20902
  • 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: 41.1546634
  • Std. Longitude: -90.4291151
  • Datum: WGS84
  • Township: 14N
  • Range: 1E
  • Section: 31
  • PLSS Details: 2710 feet W & 1255 feet N of the SE corner
  • State: Illinois
  • County: IL073—Henry
  • MLRA: 108—Illinois and Iowa Deep Loess and Drift
  • Non-MLRA Soil Survey Area: IL073—Henry County, Illinois
  • 7.5 Minute USGS Quad: 41090-B4—New Windsor, Illinois

    • PEDON

  • Current Taxonomic Class: Fine, smectitic, mesic Aeric Endoaqualfs
  • Current Taxon Kind: series
  • Pedon Type: map unit inclusion
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 14
  • Correlated Information:
  • Soil Name - Keomah
  • PSC - 25 to 75 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - aquic
  • Moisture Subclass - aeric
  • Sampled As Information:
  • Soil Name - Keomah
  • Classificaton Date - 8/1/1976
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Peoria loess
  • Landform: interfluve
  • Hill Slope Profile: summit
  • Runoff: low
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/1/1976 (actual site observation date)
  • 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
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

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    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

    2.5

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    —

    241

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    Ap—0 to 8 centimeters (0.0 to 3.1 inches); very dark gray (10YR 3/1) silt loam; moderate very fine granular structure; friable; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # IL24783
    E1—8 to 18 centimeters (3.1 to 7.1 inches); dark grayish brown (10YR 4/2) silt loam; 10 percent dark yellowish brown (10YR 4/4) fine faint mottles; weak fine platy parts to weak fine granular structure; friable; 10 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions in matrix and 10 percent fine faint dark yellowish brown (10YR 4/4) masses of oxidized iron throughout; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # IL24784
    E2—18 to 25 centimeters (7.1 to 9.8 inches); brown (10YR 5/3) and grayish brown (10YR 5/2) silt loam; 10 percent dark yellowish brown (10YR 4/4) fine faint mottles; weak medium platy parts to weak medium granular structure; friable; 10 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions in matrix and 10 percent fine faint dark yellowish brown (10YR 4/4) masses of oxidized iron throughout; fragments; very strongly acid, pH 4.7; abrupt smooth boundary. Lab sample # IL24785
    Bt1—25 to 33 centimeters (9.8 to 13.0 inches); brown (10YR 5/3) silty clay loam; moderate very fine subangular blocky structure; friable; distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds and 50 percent prominent light gray (10YR 7/2), moist, silt coats on all faces of peds; 1 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions in matrix and 50 percent distinct clay depletions on faces of peds; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL24786. continuous - phpvsfiid 1296687; continuous - phpvsfiid 1296688; continuous - phpvsfiid 1296687; continuous - phpvsfiid 1296688
    Bt2—33 to 43 centimeters (13.0 to 16.9 inches); brown (10YR 5/3) silty clay loam; 10 percent strong brown (7.5YR 5/6) fine distinct and 10 percent yellowish brown (10YR 5/6) fine faint mottles; moderate very fine subangular blocky structure; firm; faint grayish brown (10YR 5/2), moist, clay films on all faces of peds and prominent light gray (10YR 7/2), moist, silt coats on all faces of peds; 1 percent fine distinct black (10YR 2/1), moist, iron-manganese concretions in matrix and 10 percent fine distinct yellowish brown (10YR 5/6) masses of oxidized iron throughout and 10 percent fine prominent strong brown (7.5YR 5/6) masses of oxidized iron throughout; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL24787. continuous - phpvsfiid 1296680; patchy - phpvsfiid 1296681; continuous - phpvsfiid 1296680; patchy - phpvsfiid 1296681
    Btg1—43 to 66 centimeters (16.9 to 26.0 inches); grayish brown (10YR 5/2) silty clay; 10 percent grayish brown (2.5Y 5/2) fine distinct and 25 percent yellowish brown (10YR 5/6) fine faint mottles; moderate fine subangular blocky structure; firm; faint dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 1 percent distinct black (10YR 2/1), moist, iron-manganese masses in matrix and 10 percent faint iron depletions in matrix and 25 percent prominent masses of oxidized iron throughout; fragments; very strongly acid, pH 4.7; gradual smooth boundary. Lab sample # IL24788. continuous - phpvsfiid 1296682; continuous - phpvsfiid 1296682
    Btg2—66 to 86 centimeters (26.0 to 33.9 inches); grayish brown (2.5Y 5/2) silty clay loam; 25 percent yellowish brown (10YR 5/6) fine distinct mottles; weak medium prismatic parts to moderate medium subangular blocky structure; firm; 0.6 roots between peds; distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 1 percent prominent black (10YR 2/1), moist, iron-manganese masses in matrix and 25 percent prominent yellowish brown (10YR 5/6) masses of oxidized iron throughout; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL24789. patchy - phpvsfiid 1296683; patchy - phpvsfiid 1296683
    Btg3—86 to 102 centimeters (33.9 to 40.2 inches); light brownish gray (2.5Y 6/2) silty clay loam; 25 percent yellowish brown (10YR 5/6) fine distinct mottles; weak medium prismatic parts to weak medium subangular blocky structure; friable; 0.6 roots between peds; faint grayish brown (2.5Y 5/2), moist, clay films on all faces of peds and prominent very dark gray (10YR 3/1), moist, organoargillans on surfaces along root channels; 1 percent prominent black (10YR 2/1), moist, iron-manganese masses in matrix and 25 percent prominent yellowish brown (10YR 5/6) masses of oxidized iron throughout; fragments; strongly acid, pH 5.3; clear smooth boundary. Lab sample # IL24790. patchy - phpvsfiid 1296685; patchy - phpvsfiid 1296685
    Btg4—102 to 130 centimeters (40.2 to 51.2 inches); light brownish gray (2.5Y 6/2) and yellowish brown (10YR 5/6) silty clay loam; weak coarse prismatic structure; friable; 0.6 roots between peds; prominent very dark gray (10YR 3/1), moist, organoargillans on surfaces along root channels; 1 percent prominent black (10YR 2/1), moist, iron-manganese masses in matrix; fragments; neutral, pH 7.0; gradual smooth boundary. Lab sample # IL24791
    Cg—130 to 160 centimeters (51.2 to 63.0 inches); light brownish gray (2.5Y 6/2) and yellowish brown (10YR 5/6) silt loam; structureless massive; friable; 1 percent prominent black (10YR 2/1), moist, iron-manganese masses in matrix; fragments; slightly alkaline, pH 7.6. Lab sample # IL24792