IDENTIFIERS

  • Current Taxon Name (Soil Name): Seymour
  • OSD
  • Series Extent
  • User Site ID: S1984IA1770013
  • User Pedon ID: 84IA1770013
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0305
  • NCSS Pedon Lab Data NASIS Record ID - 56021
  • 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 616 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: taxadjunct
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Seymour
  • PSC - 8 to 58 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 - 3
  • 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—8

    8—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

    6

    —

    —

    —

    —

    135

    —

    —

    —

    —

    —

    —

    —

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    1Ap—0 to 8 centimeters (0.0 to 3.1 inches); dark grayish brown (10YR 4/2) interior silty clay; weak medium subangular blocky structure; firm; 0.5 fine roots; 15 percent very dark gray (10YR 3/1), moist, organic stains on faces of peds; fragments; neutral, pH 7.0, hellige-truog; abrupt smooth boundary. Lab sample # 85P01460; moist when described;. Some streaks and pockets of 10YR 5/2.; few organic coats surface features on faces of peds; few fine roots
    1BE—8 to 23 centimeters (3.1 to 9.1 inches); grayish brown (10YR 5/2) interior and dark grayish brown (2.5Y 4/2) silty clay; 11 percent yellowish brown (10YR 5/6) fine distinct mottles; moderate medium subangular blocky structure; very firm; 0.5 fine roots; 37 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 # 85P01461; 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 distinct 10YR56 mottles; continuous - phpvsfiid 230599; continuous - phpvsfiid 230599
    1Bt1—23 to 41 centimeters (9.1 to 16.1 inches); dark grayish brown (2.5Y 4/2) interior and grayish brown (2.5Y 5/2) 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 distinct mottles; moderate medium subangular blocky structure; very firm; 0.5 fine roots; 15 percent dark gray (10YR 4/1), moist, organic stains on faces of peds and 55 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; strongly acid, pH 5.2, hellige-truog; gradual smooth boundary. Lab sample # 85P01462; moist when described;. few fine soft masses of iron-manganese concentrations; few organic coats surface features on faces of peds; many clay films surface features on faces of peds; few fine roots; common fine distinct 10YR56 mottles; common fine distinct 10YR58 mottles; common fine distinct 7.5YR58 mottles; continuous - phpvsfiid 230601; continuous - phpvsfiid 230601
    1Bt2—41 to 58 centimeters (16.1 to 22.8 inches); olive gray (5Y 5/2) interior silty clay; 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) medium prominent mottles; moderate medium subangular blocky structure; very firm; 0.5 fine roots; 55 percent , moist, clay films on faces of peds; fragments; slightly acid, pH 6.2, hellige-truog; gradual smooth boundary. Lab sample # 85P01463; moist when described;. Also 7.5YR 5/8 mottles.; many clay films surface features on faces of peds; few fine roots; common medium prominent 10YR56 mottles; common medium prominent 10YR58 mottles; common medium prominent 7.5YR46 mottles; continuous - phpvsfiid 230602; continuous - phpvsfiid 230602
    1Bt3—58 to 71 centimeters (22.8 to 28.0 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; 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 6.2, hellige-truog; gradual smooth boundary. Lab sample # 85P01464; moist when described;. Also 7.5YR 5/8 mottles.; few fine soft masses of iron-manganese concentrations; common clay films surface features on faces of peds; few fine roots; many medium and coarse prominent 10YR56 mottles; many medium and coarse prominent 10YR58 mottles; many medium and coarse prominent 7.5YR46 mottles; continuous - phpvsfiid 230603; continuous - phpvsfiid 230603
    1Bt4—71 to 94 centimeters (28.0 to 37.0 inches); olive gray (5Y 5/2) interior silty clay loam; 1 percent yellowish brown (10YR 5/6) fine prominent and 11 percent dark reddish brown (5YR 3/3) medium prominent and 11 percent yellowish red (5YR 4/6) medium prominent mottles; moderate medium subangular blocky structure; firm; 37 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; neutral, pH 6.6, hellige-truog; gradual smooth boundary. Lab sample # 85P01465; moist when described;. Also 10YR 5/6 and 7.5YR 6/8 mottles.; few fine soft masses of iron-manganese concentrations; common clay films surface features on faces of peds; common medium prominent 5YR33 mottles; common medium prominent 5YR46 mottles; few fine prominent 10YR56 mottles; continuous - phpvsfiid 230604; continuous - phpvsfiid 230604
    1Bt5—94 to 119 centimeters (37.0 to 46.9 inches); grayish brown (2.5Y 5/2) interior silty clay loam; 11 percent strong brown (7.5YR 4/6) fine and medium prominent and 11 percent strong brown (7.5YR 5/6) fine and medium prominent and 11 percent strong brown (7.5YR 5/8) fine and medium prominent 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. Also 10YR 5/6 and 5/8 mottles.; few fine soft masses of iron-manganese concentrations; few clay films surface features on faces of peds; common fine and medium prominent 7.5YR46 mottles; common fine and medium prominent 7.5YR56 mottles; common fine and medium prominent 7.5YR58 mottles; continuous - phpvsfiid 230605; continuous - phpvsfiid 230605
    1Bt6—119 to 152 centimeters (46.9 to 59.8 inches); olive gray (5Y 5/2) interior silty clay loam; 30 percent strong brown (7.5YR 5/8) medium prominent and 30 percent yellowish brown (10YR 5/6) medium prominent and 30 percent yellowish brown (10YR 5/8) medium prominent mottles; weak medium subangular blocky structure; friable; fragments; neutral, pH 6.8, hellige-truog.; moist when described;. Not sampled.; many medium prominent 7.5YR58 mottles; many medium prominent 10YR56 mottles; many medium prominent 10YR58 mottles