IDENTIFIERS

  • Current Taxon Name (Soil Name): Seymour
  • OSD
  • Series Extent
  • User Site ID: S1985IA1770021
  • User Pedon ID: 85IA1770021
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0307
  • NCSS Pedon Lab Data NASIS Record ID - 56023
  • Print Date: 11/21/2024

    • 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: 40.7000008
  • Std. Longitude: -91.9583359
  • Datum: WGS84
  • Township: 68N
  • Range: 10W
  • Section: 12
  • PLSS Details: 1605 feet north and 220 feet west of the southeast 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 Aquic Argiudolls
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Seymour
  • PSC - 53 to 103 cm.
  • 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 - 11/1/1985
  • Moisture Class - udic
  • Moisture SUBClass - aquic
  • 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: 11/1/1985 (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

    mollic epipedon

    argillic horizon

    0—53

    53—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

    2

    —

    —

    —

    —

    45

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    1Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark gray (10YR 3/1) interior silty clay loam; weak fine granular structure; friable; 0.5 fine roots; fragments; neutral, pH 6.6, hellige-truog; abrupt smooth boundary. Lab sample # 85P01472; moist when described;. few fine roots
    1A1—20 to 36 centimeters (7.9 to 14.2 inches); very dark gray (10YR 3/1) interior silty clay loam; weak fine subangular blocky, and weak fine granular structure; friable; 0.5 fine roots; fragments; moderately acid, pH 5.6, hellige-truog; clear smooth boundary. Lab sample # 85P01473; moist when described;. few fine roots
    1A2—36 to 53 centimeters (14.2 to 20.9 inches); very dark gray (10YR 3/1) interior silty clay loam; weak medium subangular blocky, and weak fine subangular blocky structure; friable; 0.5 fine roots; fragments; strongly acid, pH 5.2, hellige-truog; clear smooth boundary. Lab sample # 85P01474; moist when described;. few fine roots
    1AB—53 to 61 centimeters (20.9 to 24.0 inches); dark grayish brown (2.5Y 4/2) 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; firm; 0.5 fine roots; 37 percent , moist, clay films on faces of peds and 55 percent very dark gray (10YR 3/1), moist, organic stains on faces of peds; fragments; moderately acid, pH 5.6, hellige-truog; clear smooth boundary. Lab sample # 85P01475; moist when described;. many organic coats surface features on faces of peds; common clay films surface features on faces of peds; few fine roots; common fine prominent 10YR54 mottles; common fine prominent 10YR56 mottles; continuous - phpvsfiid 230611; continuous - phpvsfiid 230611
    1Bt1—61 to 76 centimeters (24.0 to 29.9 inches); grayish brown (2.5Y 5/2) 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; 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 # 85P01476; 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 230612; continuous - phpvsfiid 230612
    1Bt2—76 to 89 centimeters (29.9 to 35.0 inches); grayish brown (2.5Y 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 5/8) medium 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 6.2, hellige-truog; gradual smooth boundary. Lab sample # 85P01477; moist when described;. 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 medium prominent 7.5YR58 mottles; continuous - phpvsfiid 230613; continuous - phpvsfiid 230613
    1Bt3—89 to 109 centimeters (35.0 to 42.9 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 and 30 percent 5YR 4/8 (5YR 4/8) medium and coarse 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; clear smooth boundary.; moist when described;. Not sampled. 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; many medium and coarse prominent 5YR48 mottles; common fine prominent 10YR54 mottles; common fine prominent 10YR56 mottles; continuous - phpvsfiid 230614; continuous - phpvsfiid 230614
    1Bt4—109 to 152 centimeters (42.9 to 59.8 inches); gray (5Y 5/1) interior silty clay loam; 1 percent yellowish brown (10YR 5/8) fine prominent and 1 percent brown (7.5YR 4/4) fine 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.; moist when described;. Not sampled.; few fine soft masses of iron-manganese concentrations; common clay films surface features on faces of peds; few fine prominent 10YR58 mottles; few fine prominent 7.5YR44 mottles; continuous - phpvsfiid 230615; continuous - phpvsfiid 230615