IDENTIFIERS

  • Current Taxon Name (Soil Name): Seymour
  • OSD
  • Series Extent
  • User Site ID: S1984IA1770012
  • User Pedon ID: 84IA1770012
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0304
  • NCSS Pedon Lab Data NASIS Record ID - 56020
  • Print Date: 11/24/2024

    • 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: 40.7166672
  • Std. Longitude: -91.9416656
  • Datum: WGS84
  • Township: 68N
  • Range: 9W
  • Section: 6
  • PLSS Details: 630 feet north and 516 feet east of the southwest corner
  • Country: US—United States
  • State: Iowa
  • County: IA177—Van Buren
  • MLRA: 109—Iowa and Missouri Heavy Till Plain
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-GAL—Gallatin, Missouri
  • Non-MLRA Soil Survey Area: IA177—Van Buren County, Iowa

    • PEDON

  • Describers Name: J. Lucassen
  • Current Taxonomic Class: Fine, smectitic, mesic Udollic Ochraqualfs
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Seymour
  • PSC - 18 to 68 cm.
  • Classificaton Date - 7/11/2007
  • Moisture Class - udic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Kniffin
  • Taxonomic Class - Fine, montmorillonitic, mesic Udollic Ochraqualf
  • Taxon Kind - series
  • Classificaton Date - 11/1/1984
  • Moisture Class - aquic
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess derived from mixed-calcareous
  • Landscape: upland
  • Landform: upland slope
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/1/1984 (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
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—18

    18—152

    —-

    —-
    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

    3

    —

    —

    —

    —

    135

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    1Ap—0 to 18 centimeters (0.0 to 7.1 inches); very dark grayish brown (10YR 3/2) interior silty clay loam; weak fine and medium subangular blocky structure; friable; 0.5 fine roots; 1 percent fine iron-manganese masses; fragments; neutral, pH 6.8, hellige-truog; abrupt smooth boundary. Lab sample # 85P01454; moist when described;. Some streaks and pockets of 2.5Y 4/2.; few fine soft masses of iron-manganese concentrations; few fine roots
    1Bt1—18 to 33 centimeters (7.1 to 13.0 inches); dark grayish brown (2.5Y 4/2) interior silty clay; 1 percent dark brown (7.5YR 3/4) fine prominent and 11 percent yellowish brown (10YR 5/4) fine prominent and 11 percent yellowish brown (10YR 5/6) fine prominent mottles; weak medium subangular blocky structure; very firm; 0.5 fine roots; 55 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; slightly acid, pH 6.4, hellige-truog; gradual smooth boundary. Lab sample # 85P01455; moist when described;. few fine soft masses of iron-manganese concentrations; many clay films surface features on faces of peds; few fine roots; few fine prominent 7.5YR34 mottles; common fine prominent 10YR54 mottles; common fine prominent 10YR56 mottles; continuous - phpvsfiid 230591; continuous - phpvsfiid 230591
    1Bt2—33 to 46 centimeters (13.0 to 18.1 inches); dark grayish brown (2.5Y 4/2) interior silty clay; 1 percent dark brown (7.5YR 3/4) 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; very firm; 0.5 fine roots; 55 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; moderately acid, pH 5.8, hellige-truog; gradual smooth boundary. Lab sample # 85P01456; moist when described;. few fine soft masses of iron-manganese concentrations; many clay films surface features on faces of peds; few fine roots; few fine prominent 7.5YR34 mottles; common fine prominent 10YR56 mottles; common fine prominent 10YR58 mottles; continuous - phpvsfiid 230592; continuous - phpvsfiid 230592
    1Bt3—46 to 64 centimeters (18.1 to 25.2 inches); dark grayish brown (10YR 4/2) interior silty clay; 11 percent yellowish brown (10YR 5/6) fine distinct and 11 percent strong brown (7.5YR 4/6) fine prominent and 11 percent strong brown (7.5YR 5/8) fine prominent mottles; moderate medium subangular blocky structure; very firm; 0.5 fine roots; 55 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; moderately acid, pH 5.8, hellige-truog; gradual smooth boundary. Lab sample # 85P01457; moist when described;. Also 10YR 5/8 mottles.; few fine soft masses of iron-manganese concentrations; many clay films surface features on faces of peds; few fine roots; common fine prominent 7.5YR46 mottles; common fine prominent 7.5YR58 mottles; common fine distinct 10YR56 mottles; continuous - phpvsfiid 230593; continuous - phpvsfiid 230593
    1Bt4—64 to 81 centimeters (25.2 to 31.9 inches); grayish brown (2.5Y 5/2) interior silty clay; 1 percent yellowish red (5YR 4/6) fine prominent and 11 percent strong brown (7.5YR 5/8) fine prominent and 11 percent yellowish brown (10YR 5/6) fine prominent mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 37 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; slightly acid, pH 6.4, hellige-truog; gradual smooth boundary. Lab sample # 85P01458; moist when described;. Also 10YR 5/8 mottles.; few fine soft masses of iron-manganese concentrations; common clay films surface features on faces of peds; few fine roots; few fine prominent 5YR46 mottles; common fine prominent 7.5YR58 mottles; common fine prominent 10YR56 mottles; continuous - phpvsfiid 230594; continuous - phpvsfiid 230594
    1Bt5—81 to 102 centimeters (31.9 to 40.2 inches); grayish brown (2.5Y 5/2) interior silty clay loam; 11 percent strong brown (7.5YR 5/8) fine prominent and 30 percent yellowish brown (10YR 5/6) medium prominent and 30 percent yellowish brown (10YR 5/8) medium prominent mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 37 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Lab sample # 85P01459; moist when described;. few fine soft masses of iron-manganese concentrations; common clay films surface features on faces of peds; few fine roots; common fine prominent 7.5YR58 mottles; many medium prominent 10YR56 mottles; many medium prominent 10YR58 mottles; continuous - phpvsfiid 230595; continuous - phpvsfiid 230595
    1Bt6—102 to 124 centimeters (40.2 to 48.8 inches); grayish brown (2.5Y 5/2) interior and yellowish brown (10YR 5/4) silty clay loam; 11 percent yellowish brown (10YR 5/8) medium distinct mottles; moderate medium subangular blocky structure; firm; 15 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; neutral, pH 6.8, hellige-truog; clear smooth boundary.; moist when described;. Not sampled.; few fine soft masses of iron-manganese concentrations; few clay films surface features on faces of peds; common medium distinct 10YR58 mottles; continuous - phpvsfiid 230596; continuous - phpvsfiid 230596
    1Bt7—124 to 152 centimeters (48.8 to 59.8 inches); gray (5Y 5/1) interior and yellowish brown (10YR 5/4) silty clay loam; 11 percent strong brown (7.5YR 4/6) fine prominent mottles; weak medium subangular blocky structure; friable; 15 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; neutral, pH 6.8, hellige-truog.; moist when described;. Not sampled.; few fine soft masses of iron-manganese concentrations; few clay films surface features on faces of peds; common fine prominent 7.5YR46 mottles; continuous - phpvsfiid 230597; continuous - phpvsfiid 230597