IDENTIFIERS

  • Current Taxon Name (Soil Name): Fourche
  • OSD
  • Series Extent
  • User Site ID: 1990MO123016M
  • User Pedon ID: 1990MO123016M
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9012316
  • NCSS Pedon Lab Data NASIS Record ID - 31410
  • Print Date: 11/12/2024

    • 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: 37.3808899
  • Std. Longitude: -90.4573364
  • Datum: WGS84
  • Township: T31N
  • Range: R5E
  • Section: 11
  • PLSS Details: 3325 feet S and 350 feet W of the NE corner
  • Location Description: 3325 ft. S. and 350 ft. W. of the NE corner of sec.11, T. 31 N., R. 5 E.
  • Map Unit: 18C—Courtois silt loam, 3 to 9 percent slopes73143—Courtois silt loam, 3 to 8 percent slopes
  • State: Missouri
  • County: MO123—Madison
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO123—Madison County, Missouri
  • 7.5 Minute USGS Quad: 37090-D4—Rock Pile Mountain, Missouri

    • PEDON

  • Describers Name: KEB, RDC, ERB, BLB, MLC
  • Current Taxonomic Class: Fine-silty, mixed, active, mesic Aquic Paleudalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: map unit inclusion
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Fourche
  • PSC - 25 to 75 cm.
  • Classificaton Date - 3/4/2011
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Fourche
  • Taxonomic Class - Fine-silty, mixed, active, mesic Glossaquic Paleudalfs
  • Taxon Kind - series
  • PSC - 25 to 75 cm.
  • Classificaton Date - 2/27/1995
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 53 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: slope alluvium derived from limestone
  • Landscape: plateau
  • Landform: structural bench
  • Runoff: medium
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/27/1995 (actual site observation date)
  • Air Photo ID: B-7
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • 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

    fragic soil properties

    0—25

    25—168

    61—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

    5

    —

    —

    174

    —

    180

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 8 centimeters (0.0 to 3.1 inches); brown (10YR 4/3), very pale brown (10YR 7/3), dry; silt loam; 1 percent dark yellowish brown (10YR 4/6) fine faint mottles; weak very fine granular structure; friable; 10.0 very fine and fine roots; fragments; neutral, pH 6.9, hellige-truog; clear wavy boundary. Lab sample # MU038694. Compaction plates in horizon.
    E—8 to 25 centimeters (3.1 to 9.8 inches); yellowish brown (10YR 5/4) silt loam; 1 percent strong brown (7.5YR 4/6) medium distinct mottles; weak thick platy parts to weak fine subangular blocky structure; friable; 10.0 very fine and fine roots; fragments; slightly alkaline, pH 7.4, hellige-truog; abrupt wavy boundary. Lab sample # MU038695
    Bt1—25 to 46 centimeters (9.8 to 18.1 inches); yellowish red (5YR 5/8) silty clay loam; moderate very fine and fine subangular blocky structure; friable; 3.0 very fine and fine roots; 15 percent prominent silt coats and 35 percent distinct clay films; fragments; strongly acid, pH 5.5, hellige-truog; clear wavy boundary. Lab sample # MU038696. discontinuous - phpvsfiid 168157; discontinuous - phpvsfiid 168157
    Bt2—46 to 61 centimeters (18.1 to 24.0 inches); strong brown (7.5YR 4/6) silty clay loam; 10 percent strong brown (7.5YR 5/6) fine faint mottles; weak medium prismatic parts to moderate very fine and fine subangular blocky structure; firm; 3.0 very fine and fine roots; 15 percent prominent pinkish gray (7.5YR 6/2) silt coats and 75 percent prominent clay films; 1 percent fine iron-manganese concretions; 1 percent by volume angular 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.2, hellige-truog; clear wavy boundary. Lab sample # MU038697. discontinuous - phpvsfiid 168159; discontinuous - phpvsfiid 168160; discontinuous - phpvsfiid 168159; discontinuous - phpvsfiid 168160
    2Btx1—61 to 69 centimeters (24.0 to 27.2 inches); strong brown (7.5YR 4/6) silt loam; 10 percent light brown (7.5YR 6/4) medium faint mottles; moderate medium prismatic parts to moderate fine subangular blocky structure; firm; brittle; 30.0 very fine and fine roots; 15 percent distinct clay films; 10 percent coarse noncoherent cemented light brownish gray (10YR 6/2) iron depletions and 10 percent fine iron-manganese concretions; 12 percent by volume 2-39-75 millimeter unspecified fragments; 20 BT; strongly acid, pH 5.1, hellige-truog; clear wavy boundary. Lab sample # MU038698. patchy - phpvsfiid 168161; patchy - phpvsfiid 168161
    2Btx2—69 to 94 centimeters (27.2 to 37.0 inches); strong brown (7.5YR 5/6) silt loam; 30 percent pale brown (10YR 6/3) medium prominent mottles; moderate fine subangular blocky structure; firm; brittle; 3.0 fine roots; 4 percent faint clay films; 1 percent fine and medium noncoherent cemented light brownish gray (10YR 6/2) iron depletions; 5 percent by volume 75-162-250 millimeter unspecified fragments; 50 BT; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # MU038699. Roots are in the top part of the horizon.; patchy - phpvsfiid 168162; patchy - phpvsfiid 168162
    3Bt3—94 to 107 centimeters (37.0 to 42.1 inches); strong brown (7.5YR 5/6) silty clay; 30 percent yellowish red (5YR 5/6) medium distinct mottles; moderate fine subangular blocky structure; firm; 0.5 very fine roots; 75 percent prominent clay films; 1 percent fine and medium noncoherent cemented pinkish gray (7.5YR 6/2) iron depletions and 30 percent fine very dark brown (10YR 2/2) iron-manganese concretions; fragments; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # MU038700. discontinuous - phpvsfiid 162015; discontinuous - phpvsfiid 162015
    3Bt4—107 to 147 centimeters (42.1 to 57.9 inches); brown (7.5YR 5/4) clay loam; 10 percent dark yellowish brown (10YR 3/6) medium prominent mottles; moderate very fine subangular blocky structure; firm; 85 percent prominent clay films; 1 percent fine iron-manganese concretions; fragments; very strongly acid, pH 5.0, hellige-truog; gradual wavy boundary. Lab sample # MU038701. The 10YR 3/6 mottles occur in the lower part of the horizon.; continuous - phpvsfiid 162016; continuous - phpvsfiid 162016
    3Bt5—147 to 168 centimeters (57.9 to 66.1 inches); 50 percent brown (7.5YR 5/4) and 50 percent red (2.5YR 4/6) clay; moderate fine subangular blocky structure; firm; 75 percent prominent manganese or iron-manganese stains and 85 percent prominent clay films; fragments; strongly acid, pH 5.1, hellige-truog. Lab sample # MU038702. discontinuous - phpvsfiid 162018; continuous - phpvsfiid 162017; discontinuous - phpvsfiid 162018; continuous - phpvsfiid 162017