IDENTIFIERS

  • Current Taxon Name (Soil Name): Ashton
  • OSD
  • Series Extent
  • User Site ID: 1990MO099016
  • User Pedon ID: 1990MO099016
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M90099168
  • Print Date: 4/21/2026

    • 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: 38.4328296
  • Std. Longitude: -90.6012220
  • Datum: WGS84
  • Location Description: Bonacher
  • State: Missouri
  • County: MO099—Jefferson
  • MLRA: 115—Central Mississippi Valley Wooded Slopes

    • PEDON

  • Describers Name: JAD, EJD, KAK
  • Pedon Type: TUD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Ashton
  • Classificaton Date - 11/21/1990
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium
  • Landscape: river valley
  • Landform: flood plain
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/21/1990 (actual site observation date)
  • Air Photo ID: 47N
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    1

    —

    —

    139

    —

    0

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    Ap—0 to 20 centimeters (0.0 to 7.9 inches); dark brown (10YR 3/3), brown (10YR 5/3), dry; silt loam; weak very fine granular structure; very friable; 3.0 very fine roots and 3.0 fine roots; fragments; neutral, pH 7.2, pH meter; abrupt smooth boundary. Lab sample # MU038280
    AB—20 to 33 centimeters (7.9 to 13.0 inches); dark brown (10YR 3/3) and brown (10YR 4/3) silt loam; weak very fine granular structure; friable; 1.0 very fine roots; fragments; neutral, pH 6.9, pH meter; clear smooth boundary. Lab sample # MU038281
    Bt1—33 to 51 centimeters (13.0 to 20.1 inches); brown (7.5YR 4/3) silt loam; weak fine subangular blocky structure; friable; 1.0 very fine roots; 10 percent faint clay films on all faces of peds; fragments; neutral, pH 6.8, pH meter; clear smooth boundary. Lab sample # MU038282
    Bt2—51 to 79 centimeters (20.1 to 31.1 inches); brown (7.5YR 4/4) silty clay loam; weak fine subangular blocky structure; friable; 1.0 very fine roots; 10 percent faint clay films on all faces of peds; fragments; neutral, pH 6.7, pH meter; gradual smooth boundary. Lab sample # MU038283
    Bt3—79 to 117 centimeters (31.1 to 46.1 inches); brown (7.5YR 4/4) silty clay loam; moderate fine subangular blocky structure; firm; 1.0 very fine roots; 10 percent distinct clay films on all faces of peds; fragments; neutral, pH 6.7, pH meter; gradual smooth boundary. Lab sample # MU038284
    Bt4—117 to 165 centimeters (46.1 to 65.0 inches); brown (7.5YR 4/4) and strong brown (7.5YR 4/6) silt loam; moderate fine subangular blocky structure; firm; 1.0 very fine roots; 10 percent distinct clay films on all faces of peds; fragments; neutral, pH 6.7, pH meter; clear smooth boundary. Lab sample # MU038285
    Bt5—165 to 183 centimeters (65.0 to 72.0 inches); brown (7.5YR 4/3) and brown (7.5YR 5/3) silty clay loam; moderate fine subangular blocky structure; firm; very fine roots; 10 percent distinct clay films on all faces of peds; fragments; slightly acid, pH 6.2, pH meter. Lab sample # MU038286