IDENTIFIERS

  • Current Taxon Name (Soil Name): Keomah
  • OSD
  • Series Extent
  • User Site ID: 1977IL095065
  • User Pedon ID: 1977IL095065
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 77IL095065
  • NCSS Pedon Lab Data NASIS Record ID - 20932
  • Print Date: 12/17/2024

    • LOCATION

  • Township: 11N
  • Range: 3E
  • Section: 1
  • Location Description: Persifer Township
  • State: Illinois
  • County: IL095—Knox
  • Non-MLRA Soil Survey Area: IL095—Knox County, 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 #: 65
  • Correlated Information:
  • Soil Name - Keomah
  • PSC - 15 to 65 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - aquic
  • Moisture Subclass - aeric
  • Sampled As Information:
  • Soil Name - Keomah
  • Classificaton Date - 8/1/1977
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/1/1977 (actual site observation date)
  • 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
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—15

    15—94

    —-

    —-
    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

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    ; fragments.
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); dark grayish brown (10YR 4/2), light brownish gray (10YR 6/2), dry; silt loam; moderate fine granular structure; very friable; fragments; moderately acid, pH 5.8; abrupt smooth boundary.
    Btg1—15 to 36 centimeters (5.9 to 14.2 inches); brown (10YR 5/3) silty clay loam; 1 percent yellowish brown (10YR 5/6) fine distinct and 1 percent light brownish gray (10YR 6/2) fine faint mottles; moderate fine subangular blocky structure; friable; distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 1 percent fine prominent black (10YR 2/1), moist, manganese masses in matrix and 1 percent fine faint light brownish gray (10YR 6/2) iron depletions throughout and 1 percent fine distinct yellowish brown (10YR 5/6) masses of oxidized iron throughout; ; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # IL25021. patchy - phpvsfiid 1296675; patchy - phpvsfiid 1296675
    Btg2—36 to 61 centimeters (14.2 to 24.0 inches); light brownish gray (2.5Y 6/2) silty clay loam; 1 percent yellowish brown (10YR 5/6) fine distinct mottles; moderate medium prismatic parts to weak medium angular blocky structure; friable; prominent dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; prominent yellowish brown (10YR 5/6) and red (2.5YR 5/6), moist, masses of oxidized iron throughout and 1 percent fine prominent black (10YR 2/1), moist, manganese masses in matrix; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # IL25022. discontinuous - phpvsfiid 1296674; discontinuous - phpvsfiid 1296674
    Btg3—61 to 94 centimeters (24.0 to 37.0 inches); grayish brown (2.5Y 5/2) silty clay loam; 10 percent yellowish brown (10YR 5/6) fine distinct mottles; weak coarse subangular blocky structure; friable; distinct very dark grayish brown (10YR 3/2), moist, organoargillans on all faces of peds; 10 percent fine prominent black (10YR 2/1), moist, manganese masses in matrix and 10 percent fine prominent yellowish brown (10YR 5/6) masses of oxidized iron throughout; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # IL25023. discontinuous - phpvsfiid 1296676; discontinuous - phpvsfiid 1296676
    Btg4—94 to 114 centimeters (37.0 to 44.9 inches); yellowish brown (10YR 5/6) and grayish brown (2.5Y 5/2) silt loam; weak coarse subangular blocky structure; friable; prominent very dark grayish brown (10YR 3/2), moist, organoargillans on surfaces along pores; 10 percent fine prominent black (10YR 2/1), moist, manganese masses in matrix; fragments; neutral, pH 7.0; clear smooth boundary. patchy - phpvsfiid 1296677; patchy - phpvsfiid 1296677
    C—114 to 152 centimeters (44.9 to 59.8 inches); light olive brown (2.5Y 5/4) silt loam; 10 percent yellowish brown (10YR 5/6) fine distinct mottles; structureless massive; firm; faint red (2.5YR 5/6), moist, masses of oxidized iron throughout and 10 percent fine prominent black (10YR 2/1), moist, manganese masses in matrix and 10 percent fine faint yellowish brown (10YR 5/6) masses of oxidized iron throughout; fragments; neutral, pH 7.0.