IDENTIFIERS

  • Current Taxon Name (Soil Name): Gepp
  • OSD
  • Series Extent
  • User Site ID: 1992MO123026M
  • User Pedon ID: 1992MO123026M
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9212326
  • NCSS Pedon Lab Data NASIS Record ID - 31357
  • Print Date: 2/17/2025

    • 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: 37.3222237
  • Std. Longitude: -90.3993912
  • Datum: WGS84
  • Township: T31N
  • Range: R6E
  • Section: 33
  • PLSS Details: 2425 feet N and 700 feet E of the SW corner
  • Location Description: 2425 ft. N. and 700 ft. E. of the SW corner of sec. 33, T. 31 N., R. 6 E.
  • Map Unit: 73156—Alred-Gepp complex, 8 to 15 percent slopes, stony57E—Poynor very gravelly silt loam, 14 to 40 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-C4—Coldwater, Missouri

    • PEDON

  • Describers Name: KEB,MLC,CGM
  • Current Taxonomic Class: Very-fine, mixed, semiactive, mesic Typic Paleudalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: within range of map unit
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Gepp
  • PSC - 13 to 63 cm.
  • Classificaton Date - 2/1/2012
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Gepp
  • Taxonomic Class - Very-fine, mixed, semiactive, mesic Typic Paleudalfs
  • Taxon Kind - series
  • PSC - 13 to 63 cm.
  • Classificaton Date - 10/27/1992
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: slope alluvium derived from mixed over residuum weathered from mixed
  • Landscape: plateau
  • Landform: valley side
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/27/1992 (actual site observation date)
  • Air Photo ID: B-9
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, paralithic

    —

    130 - 180

    —
    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    paralithic materials

    0—13

    13—180

    130—180

    —-

    —-

    —-
    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

    19

    —

    —

    207

    —

    320

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 13 centimeters (0.0 to 5.1 inches); dark yellowish brown (10YR 3/4), brown (10YR 4/3), dry; gravelly silt loam; moderate very fine granular structure; very friable; 10.0 very fine and fine roots and 0.5 medium roots; 28 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.3, hellige-truog; abrupt wavy boundary. Lab sample # MU045722
    Bt1—13 to 28 centimeters (5.1 to 11.0 inches); brown (7.5YR 4/4) gravelly loam; moderate very fine subangular blocky structure; friable; 4.0 very fine to medium roots; 75 percent faint clay films; 23 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.4, hellige-truog; clear wavy boundary. Lab sample # MU045723. Some mixing from above horizon.
    2Bt2—28 to 48 centimeters (11.0 to 18.9 inches); yellowish red (5YR 4/6) clay; moderate very fine subangular blocky structure; firm; 0.5 very fine to coarse roots; 75 percent distinct clay films; 3 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.2, hellige-truog; clear wavy boundary. Lab sample # MU045724
    2Bt3—48 to 71 centimeters (18.9 to 28.0 inches); red (2.5YR 4/6) clay; moderate very fine and fine angular blocky structure; firm; 0.5 very fine to medium roots; 75 percent distinct clay films; 1 percent medium clay bodies; fragments; moderately acid, pH 5.9, hellige-truog; clear wavy boundary. Lab sample # MU045725
    2Bt4—71 to 102 centimeters (28.0 to 40.2 inches); red (2.5YR 4/6) clay; moderate very fine subangular blocky structure; friable; 0.5 very fine and fine roots; 15 percent prominent clay films and 15 percent prominent manganese or iron-manganese stains and 75 percent distinct clay films; fragments; strongly acid, pH 5.4, hellige-truog; gradual wavy boundary. Lab sample # MU045726
    2Bt5—102 to 130 centimeters (40.2 to 51.2 inches); red (2.5YR 4/8) and yellowish red (5YR 4/6) clay; moderate very fine subangular blocky, and weak fine subangular blocky structure; firm; 4 percent prominent manganese or iron-manganese stains and 75 percent prominent clay films; fragments; neutral, pH 7.2, hellige-truog; gradual irregular boundary. Lab sample # MU045727
    2B/C11—130 to 180 centimeters (51.2 to 70.9 inches); yellowish red (5YR 4/6) clay; moderate very fine and fine angular blocky structure; firm; 0.5 very fine to medium roots; 75 percent prominent clay films; fragments; slightly alkaline, pH 7.7, hellige-truog. Lab sample # MU045728
    2B/C12—130 to 180 centimeters (51.2 to 70.9 inches); strong brown (7.5YR 5/8) bedrock; massive; very friable; fragments; slightly alkaline, pH 7.7, hellige-truog. Lab sample # MU045728. Most of the Dolomite is in the east end and upslope part of the trench. Also 2 to 3 inch wide seams of sugar Dolomite were observed. This horizon was split for sampling.