IDENTIFIERS

  • Current Taxon Name (Soil Name): Bonnefemme
  • OSD
  • Series Extent
  • User Site ID: 1992MO019029
  • User Pedon ID: 1992MO019029
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9201929
  • NCSS Pedon Lab Data NASIS Record ID - 34288
  • Print Date: 11/13/2025

    • 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: 38.7293693
  • Std. Longitude: -92.3270908
  • Datum: WGS84
  • Range: R12W
  • Section: 31
  • Location Description: 1200 feet east and 300 feet south of the northwest corner of sec. 31, T.46N.,R.12W.
  • State: Missouri
  • County: MO019—Boone
  • MLRA: 115—Central Mississippi Valley Wooded Slopes

    • PEDON

  • Describers Name: MWO
  • Current Taxon Kind: taxon above family
  • Pedon Type: not classified to current taxon name
  • 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 - 12/31/1991
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/31/1991 (actual site observation date)
  • Air Photo ID: 48
  • 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

    ochric epipedon

    argillic horizon

    0—13

    13—91

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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

    17

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    A—0 to 13 centimeters (0.0 to 5.1 inches); brown (10YR 5/3) silt loam; moderate fine subangular blocky structure; friable; 3.0 fine roots; fragments; strongly acid, pH 5.2, hellige-truog; clear smooth boundary. Lab sample # MU044211. (Note: The uppermost 1/2"" of profile is dark brown (10YR 3/3) in color and moderate medium granular in structure.)
    Bt1—13 to 36 centimeters (5.1 to 14.2 inches); strong brown (7.5YR 5/8) silty clay; moderate medium subangular blocky parts to moderate fine subangular blocky structure; firm; 3.0 fine roots; 35 percent faint dark yellowish brown (10YR 4/6) clay films on faces of peds; 4 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.9, hellige-truog; gradual smooth boundary. Lab sample # MU044212
    Bt2—36 to 56 centimeters (14.2 to 22.0 inches); strong brown (7.5YR 5/6) clay; moderate medium subangular blocky structure; firm; 3.0 fine roots; 35 percent faint clay films on faces of peds; 15 percent fine red (2.5YR 4/6) masses of oxidized iron; 4 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.8, hellige-truog; gradual smooth boundary. Lab sample # MU044213
    Bt3—56 to 71 centimeters (22.0 to 28.0 inches); yellowish brown (10YR 5/6) and strong brown (7.5YR 5/6) clay; moderate medium prismatic parts to moderate medium subangular blocky structure; firm; 0.1 fine roots; 1 percent fine red (2.5YR 4/6) masses of oxidized iron; 7 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.1, hellige-truog; clear smooth boundary. Lab sample # MU044214
    Bt4—71 to 91 centimeters (28.0 to 35.8 inches); yellowish brown (10YR 5/6) clay; 10 percent light yellowish brown (2.5Y 6/3) medium distinct mottles; weak medium prismatic parts to weak medium subangular blocky structure; firm; 35 percent faint manganese or iron-manganese stains; 15 percent medium strong brown (7.5YR 5/8) masses of oxidized iron; 12 percent by volume 2-39-75 millimeter unspecified fragments; neutral, pH 6.8, hellige-truog; clear smooth boundary. Lab sample # MU044215
    BC—91 to 114 centimeters (35.8 to 44.9 inches); dark brown (7.5YR 3/4) and dark yellowish brown (10YR 4/6) extremely gravelly silty clay loam; weak medium subangular blocky structure; firm; 15 percent faint manganese or iron-manganese stains; 75 percent by volume 2-39-75 millimeter unspecified fragments; slightly alkaline, pH 7.7, hellige-truog. Lab sample # MU044216
    R—114 centimeters (44.9 inches); bedrock; fragments.