IDENTIFIERS

  • Current Taxon Name (Soil Name): Seymour
  • OSD
  • Series Extent
  • User Site ID: S1984IA1770011
  • User Pedon ID: 84IA1770011
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0303
  • NCSS Pedon Lab Data NASIS Record ID - 56019
  • 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 328 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 - 33 to 83 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:
  • 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—23

    33—152

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    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

    —

    —

    —

    —

    135

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    1Ap—0 to 23 centimeters (0.0 to 9.1 inches); very dark gray (10YR 3/1) interior silt loam; weak fine and medium subangular blocky, and weak fine granular structure; friable; 0.5 fine roots; fragments; neutral, pH 7.2, hellige-truog; abrupt smooth boundary. Lab sample # 85P01448; moist when described;. few fine roots
    1E—23 to 33 centimeters (9.1 to 13.0 inches); grayish brown (10YR 5/2) interior silt loam; moderate coarse platy structure; friable; 0.5 fine roots; fragments; neutral, pH 7.2, hellige-truog; clear smooth boundary. Lab sample # 85P01449; moist when described;. few fine roots
    1Bt1—33 to 46 centimeters (13.0 to 18.1 inches); dark grayish brown (2.5Y 4/2) interior silty clay; 11 percent yellowish brown (10YR 5/6) fine distinct and 11 percent yellowish brown (10YR 5/8) fine distinct and 11 percent strong brown (7.5YR 5/8) 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; strongly acid, pH 5.4, hellige-truog; gradual smooth boundary. Lab sample # 85P01450; moist when described;. few fine soft masses of iron-manganese concentrations; many clay films surface features on faces of peds; few fine roots; common fine distinct 10YR56 mottles; common fine distinct 10YR58 mottles; common fine prominent 7.5YR58 mottles; continuous - phpvsfiid 230585; continuous - phpvsfiid 230585
    1Bt2—46 to 58 centimeters (18.1 to 22.8 inches); dark grayish brown (2.5Y 4/2) interior silty clay; 11 percent yellowish brown (10YR 5/6) fine prominent and 11 percent yellowish brown (10YR 5/8) 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 5.6, hellige-truog; clear smooth boundary. Lab sample # 85P01451; moist when described;. few fine soft masses of iron-manganese concentrations; many clay films surface features on faces of peds; few fine roots; common fine prominent 10YR56 mottles; common fine prominent 10YR58 mottles; common fine prominent 7.5YR58 mottles; continuous - phpvsfiid 230586; continuous - phpvsfiid 230586
    1Bt3—58 to 76 centimeters (22.8 to 29.9 inches); grayish brown (2.5Y 5/2) interior silty clay; 11 percent strong brown (7.5YR 4/6) medium prominent and 11 percent 7.5YR 4/8 (7.5YR 4/8) medium prominent and 11 percent yellowish brown (10YR 5/6) 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; slightly acid, pH 6.2, hellige-truog; gradual smooth boundary. Lab sample # 85P01452; 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 medium prominent 7.5YR46 mottles; common medium prominent 7.5YR48 mottles; common fine prominent 10YR56 mottles; continuous - phpvsfiid 230587; continuous - phpvsfiid 230587
    1Bt4—76 to 99 centimeters (29.9 to 39.0 inches); grayish brown (2.5Y 5/2) interior silty clay loam; 11 percent yellowish brown (10YR 5/6) medium prominent and 11 percent yellowish brown (10YR 5/8) medium prominent and 11 percent strong brown (7.5YR 4/6) fine prominent mottles; moderate medium subangular blocky structure; 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 # 85P01453; moist when described;. Also 7.5YR 5/8 mottles.; few fine soft masses of iron-manganese concentrations; many clay films surface features on faces of peds; few fine roots; common medium prominent 10YR56 mottles; common medium prominent 10YR58 mottles; common fine prominent 7.5YR46 mottles; continuous - phpvsfiid 230588; continuous - phpvsfiid 230588
    1Bt5—99 to 124 centimeters (39.0 to 48.8 inches); grayish brown (10YR 5/2) interior silty clay loam; 11 percent strong brown (7.5YR 4/6) fine prominent and 11 percent strong brown (7.5YR 5/8) fine prominent and 11 percent yellowish brown (10YR 5/6) medium distinct 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; clear smooth boundary.; moist when described;. Not sampled. 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; common fine prominent 7.5YR46 mottles; common fine prominent 7.5YR58 mottles; common medium distinct 10YR56 mottles; continuous - phpvsfiid 230589; continuous - phpvsfiid 230589
    1Bt6—124 to 152 centimeters (48.8 to 59.8 inches); olive gray (5Y 5/2) interior silty clay loam; 30 percent yellowish brown (10YR 5/6) medium and coarse prominent and 30 percent yellowish brown (10YR 5/8) medium and coarse prominent and 30 percent strong brown (7.5YR 4/6) medium and coarse 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. Also 7.5YR 4/8 mottles.; few fine soft masses of iron-manganese concentrations; few clay films surface features on faces of peds; many medium and coarse prominent 10YR56 mottles; many medium and coarse prominent 10YR58 mottles; many medium and coarse prominent 7.5YR46 mottles; continuous - phpvsfiid 230590; continuous - phpvsfiid 230590