IDENTIFIERS

  • Current Taxon Name (Soil Name): Courtois
  • OSD
  • Series Extent
  • User Site ID: 1998MO221147M
  • User Pedon ID: 1998MO221147
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9822120
  • Print Date: 4/25/2025

    • 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: 37.9921825
  • Std. Longitude: -90.8542715
  • Datum: WGS84
  • State: Missouri
  • County: MO221—Washington
  • MLRA: 116A—Ozark Highland

    • PEDON

  • Describers Name: DMS
  • Current Taxonomic Class: Fine, mixed Typic Paleudalfs
  • Pedon Type: within range of map unit
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Courtois
  • Taxonomic Class - Fine, mixed Typic Paleudalfs
  • Taxon Kind - series
  • PSC - 15 to 66 cm.
  • Classificaton Date - 4/16/1998
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess and/or residuum
  • Landscape: foothills
  • Landform: valley side
  • Geomorphic Component Hills: head slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/16/1998 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - hayland
  • 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

    10

    —

    —

    245

    —

    22

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    —
    A—0 to 15 centimeters (0.0 to 5.9 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; silt loam; moderate fine subangular blocky structure; friable; 3.0 very fine and fine roots; 6.0 very fine and fine interstitial and tubular pores; fragments; neutral, pH 6.8, hellige-truog; abrupt smooth boundary. Lab sample # MU061030
    Bt1—15 to 25 centimeters (5.9 to 9.8 inches); strong brown (7.5YR 4/6) silty clay loam; moderate fine subangular blocky structure; firm; 3.0 very fine and fine roots; 6.0 fine to coarse interstitial and tubular pores; 30 percent distinct clay films on faces of peds; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Lab sample # MU061031. discontinuous - phpvsfiid 135621; discontinuous - phpvsfiid 135621
    Bt2—25 to 38 centimeters (9.8 to 15.0 inches); yellowish red (5YR 5/6) silty clay loam; weak medium prismatic parts to strong very fine subangular blocky structure; firm; 0.5 very fine and fine roots; 3.0 fine to coarse interstitial and tubular pores; 60 percent distinct clay films on faces of peds; fragments; neutral, pH 6.7, hellige-truog; gradual smooth boundary. Lab sample # MU061032. continuous - phpvsfiid 135622; continuous - phpvsfiid 135622
    Bt3—38 to 56 centimeters (15.0 to 22.0 inches); yellowish red (5YR 4/6) silty clay loam; moderate medium prismatic parts to moderate fine subangular blocky structure; very firm; 0.5 very fine and fine roots; 3.0 fine to coarse interstitial and tubular pores; 60 percent distinct clay films on faces of peds; fragments; neutral, pH 6.7, hellige-truog; gradual smooth boundary. Lab sample # MU061033. continuous - phpvsfiid 135623; continuous - phpvsfiid 135623
    2Bt4—56 to 79 centimeters (22.0 to 31.1 inches); 60 percent red (2.5YR 4/6) and 40 percent strong brown (7.5YR 5/6) silty clay; moderate coarse prismatic parts to moderate fine subangular blocky structure; very firm; 0.5 very fine and fine roots; 0.5 fine to coarse interstitial and tubular pores; 15 percent prominent manganese or iron-manganese stains on faces of peds and 30 percent distinct clay films on faces of peds; 5 percent by volume 2-39-75 millimeter limestone, cherty fragments; moderately acid, pH 5.9, hellige-truog; clear smooth boundary. Lab sample # MU061034. discontinuous - phpvsfiid 135624; discontinuous - phpvsfiid 135625; discontinuous - phpvsfiid 135624; discontinuous - phpvsfiid 135625
    2Bt5—79 to 97 centimeters (31.1 to 38.2 inches); red (2.5YR 4/8) gravelly clay; moderate coarse prismatic parts to moderate very fine angular blocky structure; very firm; 0.5 fine to coarse interstitial and tubular pores; 30 percent distinct clay films on faces of peds and 30 percent prominent manganese or iron-manganese stains on faces of peds; 15 percent by volume 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.4, hellige-truog; gradual smooth boundary. Lab sample # MU061035. discontinuous - phpvsfiid 135626; discontinuous - phpvsfiid 135627; discontinuous - phpvsfiid 135626; discontinuous - phpvsfiid 135627
    2Bt6—97 to 137 centimeters (38.2 to 53.9 inches); dark reddish brown (2.5YR 3/4) gravelly clay; strong very fine angular blocky structure; very firm; 0.5 very fine and fine interstitial and tubular pores; 60 percent distinct clay films on faces of peds; 15 percent by volume 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.3, hellige-truog; gradual smooth boundary. Lab sample # MU061036. continuous - phpvsfiid 135628; continuous - phpvsfiid 135628
    2Bt7—137 to 173 centimeters (53.9 to 68.1 inches); red (10R 4/6) very gravelly sandy clay; strong very fine angular blocky structure; very firm; 0.5 very fine and fine interstitial and tubular pores; 60 percent distinct clay films on faces of peds; 35 percent by volume 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.4, hellige-truog; clear smooth boundary. Lab sample # MU061037. continuous - phpvsfiid 135629; continuous - phpvsfiid 135629
    2Bt8—173 to 203 centimeters (68.1 to 79.9 inches); red (10R 4/6) gravelly clay; strong very fine angular blocky structure; very firm; 0.5 very fine and fine interstitial and tubular pores; 60 percent distinct clay films on faces of peds; 10 percent by volume 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.3, hellige-truog. Lab sample # MU061038. continuous - phpvsfiid 135630; continuous - phpvsfiid 135630