IDENTIFIERS

  • Current Taxon Name (Soil Name): Seymour
  • OSD
  • Series Extent
  • User Site ID: S1986IA0510031
  • User Pedon ID: 86IA0510031
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 87P0337
  • NCSS Pedon Lab Data NASIS Record ID - 59632
  • Print Date: 2/16/2025

    • 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: 40.7038879
  • Std. Longitude: -92.3783340
  • Datum: WGS84
  • Township: 68N
  • Range: 13W
  • Section: 8
  • PLSS Details: 50 feet S and 173 feet W of the center
  • State: Iowa
  • County: IA051—Davis

    • PEDON

  • Describers Name: J. A. Lucassen
  • Current Taxonomic Class: Fine, smectitic, mesic Aquic Argiudolls
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 3
  • Correlated Information:
  • Soil Name - Seymour
  • Classificaton Date - 7/11/2007
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Seymour
  • Taxonomic Class - Fine, montmorillonitic, mesic Aquic Argiudoll
  • Taxon Kind - series
  • Classificaton Date - 8/1/1986
  • Moisture Class - udic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: upland slope
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/1/1986 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • 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

    2

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    135

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    1Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark gray (10YR 3/1) interior silty clay loam; weak fine subangular blocky, and weak very fine and fine granular structure; friable; 0.5 fine roots; fragments; neutral, pH 6.8, hellige-truog; abrupt smooth boundary. Lab sample # 87P01698. few fine roots
    1A—20 to 36 centimeters (7.9 to 14.2 inches); very dark grayish brown (10YR 3/2) interior silty clay loam; weak fine subangular blocky, and weak fine granular structure; friable; 0.5 fine roots; fragments; slightly acid, pH 6.2, hellige-truog; clear smooth boundary. Lab sample # 87P01699. few fine roots
    1AB—36 to 46 centimeters (14.2 to 18.1 inches); dark grayish brown (10YR 4/2) interior silty clay loam; moderate fine subangular blocky structure; friable; 0.5 fine roots; 55 percent very dark gray (10YR 3/1), moist, coats on faces of peds and 55 percent very dark grayish brown (10YR 3/2), moist, coats on faces of peds; fragments; moderately acid, pH 5.6, hellige-truog; clear smooth boundary. Lab sample # 87P01700. many coats surface features on faces of peds; many coats surface features on faces of peds; few fine roots
    1Bt1—46 to 61 centimeters (18.1 to 24.0 inches); dark grayish brown (10YR 4/2) interior silty clay; 11 percent dark yellowish brown (10YR 4/4) fine distinct and 11 percent dark yellowish brown (10YR 4/6) fine distinct mottles; moderate medium subangular blocky structure; friable; 0.5 fine roots; 15 percent very dark gray (10YR 3/1), moist, organic stains and 37 percent distinct , moist, clay films; 1 percent fine iron-manganese concretions; fragments; moderately acid, pH 5.8, hellige-truog; gradual smooth boundary. Lab sample # 87P01701. few fine iron-manganese concretions concentrations; few organic coats surface features; common clay films surface features; few fine roots; common fine distinct 10YR44 mottles; common fine distinct 10YR46 mottles
    1Bt2—61 to 79 centimeters (24.0 to 31.1 inches); dark grayish brown (2.5Y 4/2) interior silty clay; 1 percent brown (7.5YR 4/4) fine prominent and 11 percent dark yellowish brown (10YR 4/4) fine prominent and 11 percent yellowish brown (10YR 5/4) fine prominent mottles; moderate medium subangular blocky structure; very firm; 0.5 fine roots; 15 percent , moist, organic stains in root channels and/or pores and 37 percent distinct , moist, clay films; 1 percent fine iron-manganese concretions; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Lab sample # 87P01702. few fine iron-manganese concretions concentrations; common clay films surface features; few organic coats surface features in root channels and/or pores; few fine roots; common fine prominent 10YR44 mottles; common fine prominent 10YR54 mottles; few fine prominent 7.5YR44 mottles
    1Bt3—79 to 107 centimeters (31.1 to 42.1 inches); grayish brown (2.5Y 5/2) interior silty clay; 11 percent yellowish brown (10YR 5/4) fine prominent and 11 percent yellowish brown (10YR 5/6) fine prominent mottles; moderate medium subangular blocky structure; very firm; 0.5 fine roots; 15 percent , moist, organic stains in root channels and/or pores and 37 percent distinct , moist, clay films; 11 percent fine iron-manganese concretions; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Lab sample # 87P01703. common fine iron-manganese concretions concentrations; common clay films surface features; few organic coats surface features in root channels and/or pores; few fine roots; common fine prominent 10YR54 mottles; common fine prominent 10YR56 mottles
    1Bt4—107 to 152 centimeters (42.1 to 59.8 inches); grayish brown (2.5Y 5/2) interior silty clay loam; 1 percent strong brown (7.5YR 4/6) fine prominent and 11 percent yellowish brown (10YR 5/6) fine prominent and 11 percent yellowish brown (10YR 5/8) fine prominent mottles; moderate medium subangular blocky structure; firm; 37 percent distinct , moist, clay films; 11 percent fine iron-manganese concretions; fragments; neutral, pH 7.0, hellige-truog. common fine iron-manganese concretions concentrations; common clay films surface features; common fine prominent 10YR56 mottles; common fine prominent 10YR58 mottles; few fine prominent 7.5YR46 mottles