IDENTIFIERS

  • Current Taxon Name (Soil Name): Gepp
  • OSD
  • Series Extent
  • User Site ID: 1992MO123024M
  • User Pedon ID: 1992MO123024M
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9212324
  • NCSS Pedon Lab Data NASIS Record ID - 31358
  • 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: 37.3216667
  • Std. Longitude: -90.2111130
  • Datum: WGS84
  • Township: T31N
  • Range: R8E
  • Section: 31
  • PLSS Details: 2650 feet N and 1900 feet E of the SW corner
  • Location Description: 2,650 feet north and 1,900 feet east of the southwest corner of sec. 31, T. 31 N., R. 8 E.
  • Map Unit: 73156—Alred-Gepp complex, 8 to 15 percent slopes, stony57D—Poynor gravelly silt loam, 9 to 14 percent slopes
  • State: Missouri
  • County: MO123—Madison
  • MLRA: 116A—Ozark Highland
  • MLRA Soil Survey Area: NC-SPM—Springfield, Missouri
  • Non-MLRA Soil Survey Area: MO123—Madison County, Missouri
  • 7.5 Minute USGS Quad: 37090-C2—Allbright, Missouri

    • PEDON

  • Describers Name: MLC, KEB and CGM
  • Current Taxonomic Class: Very-fine, mixed, semiactive, mesic Typic Paleudalfs
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • 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 - 3/28/2011
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Gepp
  • Taxonomic Class - Very-fine, mixed, semiactive, mesic Typic Paleudalfs
  • Taxon Kind - series
  • PSC - 14 to 64 cm.
  • Classificaton Date - 10/26/1992
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: slope alluvium over residuum
  • Landscape: plateau
  • Landform: ridge
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/26/1992 (actual site observation date)
  • Air Photo ID: D-9
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree 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

    1—13

    13—183

    —-

    —-
    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

    6

    —

    —

    188

    —

    200

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 1 centimeters (0.0 to 0.4 inches); slightly decomposed plant material; fragments.
    A—1 to 14 centimeters (0.4 to 5.5 inches); brown (10YR 5/3) very gravelly silt loam; moderate fine granular structure; very friable; 10.0 very fine and fine roots and 0.5 medium roots; 2 percent by volume 75-162-250 millimeter unspecified fragments and 37 percent by volume subangular 2-39-75 millimeter unspecified fragments; extremely acid, pH 4.4, hellige-truog; clear wavy boundary. Lab sample # MU045712
    2Bt1—14 to 29 centimeters (5.5 to 11.4 inches); yellowish red (5YR 5/6) clay; moderate very fine and fine subangular blocky structure; firm; 3.0 very fine and fine roots and 0.5 medium and coarse roots; 35 percent distinct clay films; 1 percent by volume 75-162-250 millimeter unspecified fragments and 10 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.7, hellige-truog; clear wavy boundary. Lab sample # MU045713. Mixing from above horizon.
    2Bt2—29 to 47 centimeters (11.4 to 18.5 inches); yellowish red (5YR 5/6) and strong brown (7.5YR 5/6) clay; weak fine subangular blocky structure; firm; 0.5 very fine to coarse roots; 75 percent distinct clay films; 6 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.9, hellige-truog; clear wavy boundary. Lab sample # MU045714. some mixing from above horizon.
    2Bt3—47 to 67 centimeters (18.5 to 26.4 inches); yellowish red (5YR 5/8) and red (2.5YR 5/6) clay; moderate very fine subangular blocky structure; firm; 0.1 very fine to medium roots; 75 percent distinct clay films; 2 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU045715
    2Bt4—67 to 90 centimeters (26.4 to 35.4 inches); yellowish red (5YR 5/6) and reddish brown (2.5YR 4/4) clay; moderate very fine angular blocky structure; firm; 0.1 very fine and fine roots; 15 percent prominent clay films and 75 percent distinct clay films; 1 percent by volume 75-162-250 millimeter unspecified fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU045716
    2Bt5—90 to 110 centimeters (35.4 to 43.3 inches); strong brown (7.5YR 5/6) and red (2.5YR 4/6) clay; moderate very fine angular blocky structure; firm; 0.1 very fine to medium roots; 15 percent prominent clay films and 75 percent distinct clay films; fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU045717
    2Bt6—110 to 133 centimeters (43.3 to 52.4 inches); reddish brown (2.5YR 4/4) and strong brown (7.5YR 5/6) clay; moderate very fine angular blocky structure; very firm; 0.1 very fine roots; 75 percent prominent clay films; fragments; very strongly acid, pH 4.8, hellige-truog; gradual wavy boundary. Lab sample # MU045718
    2Bt7—133 to 148 centimeters (52.4 to 58.3 inches); weak red (10R 4/4) and yellowish red (5YR 5/6) clay; moderate very fine and fine angular blocky structure; very firm; 0.1 very fine roots; 75 percent prominent clay films; fragments; very strongly acid, pH 5.0, hellige-truog; abrupt wavy boundary. Lab sample # MU045719
    2Bt8—148 to 169 centimeters (58.3 to 66.5 inches); red (10R 4/6) and yellowish red (5YR 5/6) clay; strong fine angular blocky structure; very firm; 0.1 very fine roots; 35 percent prominent black (10YR 2/1) manganese or iron-manganese stains and 75 percent prominent clay films; fragments; strongly acid, pH 5.4, hellige-truog; clear wavy boundary. Lab sample # MU045720
    2Bt9—169 to 204 centimeters (66.5 to 80.3 inches); red (2.5YR 4/6) and yellowish red (5YR 5/6) clay; moderate very fine and fine angular blocky structure; very firm; 0.1 very fine roots; 35 percent prominent clay films and 35 percent prominent black (10YR 2/1) manganese or iron-manganese stains; fragments; slightly acid, pH 6.2, hellige-truog. Lab sample # MU045721. Band of soft shale fragments was observed.