IDENTIFIERS

  • Current Taxon Name (Soil Name): Bonnefemme
  • OSD
  • Series Extent
  • User Site ID: 1992MO019065
  • User Pedon ID: 1992MO019065
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9201965
  • NCSS Pedon Lab Data NASIS Record ID - 26673
  • Print Date: 11/14/2025

    • 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: 38.6760782
  • Std. Longitude: -92.2203323
  • Datum: WGS84
  • Range: R12W
  • Section: 13
  • Location Description: 2300 feet north and 400 feet west of the southeast corner of sec. 13, T.45N.,R12W.
  • State: Missouri
  • County: MO019—Boone
  • MLRA: 115—Central Mississippi Valley Wooded Slopes

    • PEDON

  • Describers Name: FJY
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Bonnefemme
  • PSC - 13 to 64 cm.
  • Classificaton Date - 5/28/1992
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum
  • Landscape: hills
  • Landform: hillside
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/28/1992 (actual site observation date)
  • Air Photo ID: 51
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    argillic horizon

    lithic contact

    13—99

    99—0

    —-

    —-
    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

    32

    —

    —

    —

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 1 centimeters (0.0 to 0.4 inches); fragments.
    A—1 to 6 centimeters (0.4 to 2.4 inches); very dark brown (10YR 2/2) silt loam; weak and moderate very fine granular structure; very friable; 3.0 very fine and fine roots; fragments; slightly acid, pH 6.5, hellige-truog; abrupt wavy boundary. Lab sample # MU011152
    E—6 to 14 centimeters (2.4 to 5.5 inches); yellowish brown (10YR 5/4) silt loam; weak fine subangular blocky structure; friable; 3.0 very fine to medium roots; fragments; strongly acid, pH 5.3, hellige-truog; clear smooth boundary. Lab sample # MU011153. (Note: There are many large irregular brown (10YR 5/4 and 7.5YR 5/3) patches present.)
    Bt1—14 to 29 centimeters (5.5 to 11.4 inches); strong brown (7.5YR 4/6) silty clay loam; moderate very fine and fine subangular blocky structure; firm; 0.1 very fine roots and 3.0 fine and medium roots and 0.1 coarse roots; 35 percent faint brown (7.5YR 5/4) silt coats and 60 percent faint clay films on faces of peds; fragments; strongly acid, pH 5.3, hellige-truog; diffuse boundary. Lab sample # MU011154
    Bt2—29 to 49 centimeters (11.4 to 19.3 inches); strong brown (7.5YR 4/6) silty clay loam; moderate very fine and fine subangular blocky structure; firm; 0.1 very fine roots and 3.0 fine and medium roots and 0.1 coarse roots; 15 percent distinct clay films on faces of peds and 60 percent faint ; 1 percent fine iron-manganese concretions; fragments; strongly acid, pH 5.2, hellige-truog; abrupt smooth boundary. Lab sample # MU011155
    Bt3—49 to 75 centimeters (19.3 to 29.5 inches); brown (7.5YR 4/4) silty clay loam; 1 percent brown (7.5YR 5/3) fine distinct mottles; weak medium prismatic parts to moderate fine subangular blocky structure; firm; 0.1 very fine roots and 3.0 fine and medium roots and 0.1 coarse roots; brown (7.5YR 5/3) clay films on faces of peds and 35 percent distinct brown (7.5YR 4/3) and 35 percent manganese or iron-manganese stains; fragments; strongly acid, pH 5.4, hellige-truog; diffuse boundary. Lab sample # MU011156
    2Bt4—75 to 100 centimeters (29.5 to 39.4 inches); strong brown (7.5YR 4/6) silty clay loam; weak fine prismatic parts to moderate fine subangular blocky structure; firm; 0.1 very fine to medium roots; 15 percent prominent brown (7.5YR 5/4) clay films on faces of peds and 35 percent distinct and 35 percent manganese or iron-manganese stains; 1 percent carbonate threads between peds; 10 percent by volume 2-39-75 millimeter limestone, unspecified fragments; slightly alkaline, pH 7.5, hellige-truog; clear wavy boundary. Lab sample # MU011157. (Note: There are a few very pale brown (10YR 7/3) lithochromic colors associated with saprolitic gravel. Also, the soil matrix is not effervescent.)
    R—100 centimeters (39.4 inches); bedrock; fragments.