IDENTIFIERS

  • Current Taxon Name (Soil Name): Seymour
  • OSD
  • Series Extent
  • User Site ID: S1985IA1770016
  • User Pedon ID: 85IA1770016
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 86P0393
  • NCSS Pedon Lab Data NASIS Record ID - 58198
  • 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: -91.9333344
  • Datum: WGS84
  • Township: 68N
  • Range: 9W
  • Section: 6
  • PLSS Details: 630 feet north and 566 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. A. Lucassen
  • Current Taxonomic Class: Fine, smectitic, mesic Mollic 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
  • Classificaton Date - 7/11/2007
  • Moisture Class - aquic
  • Sampled As Information:
  • Soil Name - Kniffin
  • Taxonomic Class - Fine, montmorillonitic, mesic Udollic Ochraqualf
  • Taxon Kind - series
  • Classificaton Date - 11/1/1985
  • Moisture Class - aquic
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess
  • Landscape: upland
  • 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
    • 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

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    135

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    1Ap—0 to 18 centimeters (0.0 to 7.1 inches); very dark grayish brown (10YR 3/2) interior silty clay loam; 39 percent clay; weak fine and medium subangular blocky structure; friable; 0.5 fine roots; fragments; neutral, pH 7.0, hellige-truog; abrupt smooth boundary. Lab sample # 86P02321. Many streaks and pockets of (2.5Y 4/2).; few fine roots
    1Bt1—18 to 33 centimeters (7.1 to 13.0 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; very firm; 0.5 fine roots; 55 percent , moist, clay films; fragments; slightly acid, pH 6.4, hellige-truog; gradual smooth boundary. Lab sample # 86P02322. many clay films surface features; few fine roots; common fine prominent 10YR54 mottles; common fine prominent 10YR56 mottles; continuous - phpvsfiid 220421; continuous - phpvsfiid 220421
    1Bt2—33 to 51 centimeters (13.0 to 20.1 inches); dark grayish brown (2.5Y 4/2) interior silty clay; 1 percent strong brown (7.5YR 5/8) fine prominent and 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; 55 percent , moist, clay films; 1 percent fine dark concretions; fragments; slightly acid, pH 6.4, hellige-truog; gradual smooth boundary. Lab sample # 86P02323. few fine dark concretions concentrations; many clay films surface features; few fine roots; common fine prominent 10YR54 mottles; common fine prominent 10YR56 mottles; few fine prominent 7.5YR58 mottles; continuous - phpvsfiid 231460; continuous - phpvsfiid 231460
    1Bt3—51 to 66 centimeters (20.1 to 26.0 inches); dark grayish brown (10YR 4/2) interior silty clay loam; 1 percent strong brown (7.5YR 5/8) fine prominent and 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; 55 percent , moist, clay films; 1 percent fine dark concretions; fragments; slightly acid, pH 6.4, hellige-truog; gradual smooth boundary. Lab sample # 86P02324. few fine dark concretions concentrations; many clay films surface features; few fine roots; common fine prominent 10YR54 mottles; common fine prominent 10YR56 mottles; few fine prominent 7.5YR58 mottles; continuous - phpvsfiid 231461; continuous - phpvsfiid 231461
    1Bt4—66 to 86 centimeters (26.0 to 33.9 inches); grayish brown (2.5Y 5/2) interior silty clay loam; 38 percent clay; 11 percent strong brown (7.5YR 5/6) fine prominent and 11 percent strong brown (7.5YR 5/8) fine prominent and 11 percent yellowish brown (10YR 5/4) fine prominent mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 37 percent , moist, clay films; 1 percent fine dark concretions; fragments; neutral, pH 6.6, hellige-truog; gradual smooth boundary. Lab sample # 86P02325. few fine dark concretions concentrations; common clay films surface features; few fine roots; common fine prominent 7.5YR56 mottles; common fine prominent 7.5YR58 mottles; common fine prominent 10YR54 mottles; continuous - phpvsfiid 231462; continuous - phpvsfiid 231462
    1Bt5—86 to 107 centimeters (33.9 to 42.1 inches); grayish brown (2.5Y 5/2) interior silty clay loam; 11 percent strong brown (7.5YR 5/6) fine prominent and 11 percent strong brown (7.5YR 5/8) fine prominent and 11 percent yellowish brown (10YR 5/4) fine prominent mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 37 percent , moist, clay films; 1 percent fine dark concretions; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Lab sample # 86P02326. few fine dark concretions concentrations; common clay films surface features; few fine roots; common fine prominent 7.5YR56 mottles; common fine prominent 7.5YR58 mottles; common fine prominent 10YR54 mottles; continuous - phpvsfiid 231463; continuous - phpvsfiid 231463
    1Bt6—107 to 132 centimeters (42.1 to 52.0 inches); grayish brown (2.5Y 5/2) interior silty clay loam; 1 percent yellowish brown (10YR 5/4) fine prominent and 1 percent yellowish brown (10YR 5/6) fine prominent and 1 percent yellowish brown (10YR 5/8) fine prominent mottles; weak medium subangular blocky structure; firm; 15 percent , moist, clay films; 1 percent fine dark concretions; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. few fine dark concretions concentrations; few clay films surface features; few fine prominent 10YR54 mottles; few fine prominent 10YR56 mottles; few fine prominent 10YR58 mottles; discontinuous - phpvsfiid 231464; discontinuous - phpvsfiid 231464
    1Bt7—132 to 152 centimeters (52.0 to 59.8 inches); grayish brown (2.5Y 5/2) interior silty clay loam; 11 percent brown (7.5YR 5/4) fine prominent and 11 percent strong brown (7.5YR 5/6) fine prominent and 11 percent strong brown (7.5YR 5/8) fine prominent mottles; weak medium subangular blocky structure; firm; 15 percent , moist, clay films; 1 percent fine dark concretions; fragments; neutral, pH 7.0, hellige-truog. few fine dark concretions concentrations; few clay films surface features; common fine prominent 7.5YR54 mottles; common fine prominent 7.5YR56 mottles; common fine prominent 7.5YR58 mottles; discontinuous - phpvsfiid 231465; discontinuous - phpvsfiid 231465