IDENTIFIERS

  • Current Taxon Name (Soil Name): Okaton
  • OSD
  • Series Extent
  • User Site ID: S1978SD053009
  • User Pedon ID: 78SD053009
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 78P0362
  • NCSS Pedon Lab Data NASIS Record ID - 45916
  • Print Date: 1/29/2025

    • 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: 43.3944435
  • Std. Longitude: -99.1875000
  • Datum: WGS84
  • Township: 99N
  • Range: 71W
  • Section: 13
  • PLSS Details: 606 meters W and 587 meters S of the NE corner
  • Location Description: Gregory County, SD. 150 meters from road.
  • State: South Dakota
  • County: SD053—Gregory

    • PEDON

  • Describers Name: L. Zavesky
  • Current Taxonomic Class: Clayey, smectitic, mesic, shallow Typic Ustorthents
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 9
  • Correlated Information:
  • Soil Name - Okaton
  • Classificaton Date - 7/11/2007
  • Moisture Class - ustic
  • Sampled As Information:
  • Soil Name - Okaton
  • Taxonomic Class - Clayey, montmorillonitic (calcareous), mesic, shal
  • Taxon Kind - taxadjunct
  • Classificaton Date - 6/1/1978
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: upland slope
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1978 (actual site observation date)
  • Surface Cover Properties:
  • 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

    29

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    —

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    180

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    1A1—0 to 5 centimeters (0.0 to 2.0 inches); dark brown (10YR 3/3) interior and brown (10YR 4/3) interior, brown (10YR 5/3) interior, dry; silty clay; weak fine granular structure; hard, friable; 5.5 very fine roots; fragments; strong effervescence, by hcl, 1n; clear wavy boundary. Lab sample # 78P01968. many very fine roots
    1C1cs—5 to 17 centimeters (2.0 to 6.7 inches); brown (10YR 4/3) interior and yellowish brown (10YR 5/4) interior and yellowish brown (10YR 5/6) interior, grayish brown (10YR 5/2) interior and light yellowish brown (10YR 6/4) interior, dry; silty clay; weak very fine subangular blocky structure; slightly hard, friable; 5.5 very fine roots; 30 percent fine threadlike gypsum masses; fragments; strong effervescence, by hcl, 1n; clear wavy boundary. Lab sample # 78P01969. Two layers of gypsum 5 mm thick.; many fine masses of gypsum concentrations; many very fine roots
    1C2cs—17 to 38 centimeters (6.7 to 15.0 inches); grayish brown (2.5Y 5/2) interior and olive brown (2.5Y 4/4) interior and dark grayish brown (2.5Y 4/2) interior, light yellowish brown (2.5Y 6/4) interior, dry; silty clay; moderate medium subangular blocky structure; slightly hard, friable; 5.5 very fine roots; 30 percent fine threadlike gypsum masses; fragments; strong effervescence, by hcl, 1n; clear wavy boundary. Lab sample # 78P01970. Weak bedding planes evident. Four layers of gypsum 1 cm thick of light brownish gray 10YR 6/2.; many fine masses of gypsum concentrations; many very fine roots
    1C3cs—38 to 60 centimeters (15.0 to 23.6 inches); olive brown (2.5Y 4/4) interior and light brownish gray (10YR 6/2) interior, grayish brown (2.5Y 5/2) interior and light yellowish brown (2.5Y 6/4) interior, dry; silty clay; massive; slightly hard, friable; 5.5 very fine and fine roots; 30 percent fine threadlike gypsum masses; fragments; strong effervescence, by hcl, 1n; clear wavy boundary. Lab sample # 78P01971. Rock sturcture evident. 5 layers of gypsum 1 cm thick.; many fine masses of gypsum concentrations; many very fine and fine roots
    1Cr1—60 to 90 centimeters (23.6 to 35.4 inches); light olive brown (2.5Y 5/4) interior and light olive brown (2.5Y 5/6) interior and grayish brown (2.5Y 5/2) interior, light brownish gray (2.5Y 6/2) interior and olive brown (2.5Y 4/4) interior, dry; weathered bedrock; 11 percent fine gypsum masses; fragments; violent effervescence, by hcl, 1n; gradual wavy boundary. Lab sample # 78P01972. Fourth moist color strong brown 7.5YR 5/6. Four layers of gypsum 2 cm thick.; common fine masses of gypsum concentrations
    1Cr2—90 to 107 centimeters (35.4 to 42.1 inches); light olive brown (2.5Y 5/6) interior and grayish brown (10YR 5/2) interior, pale yellow (2.5Y 7/4) interior and light gray (2.5Y 7/2) interior, dry; weathered bedrock; 0.5 fine roots; fine gypsum masses; fragments; strong effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # 78P01973. few fine roots
    1Cr3—107 to 132 centimeters (42.1 to 52.0 inches); brown (10YR 5/3) interior and yellowish brown (10YR 5/4) interior and yellowish brown (10YR 5/6) interior, light gray (2.5Y 7/2) interior and light yellowish brown (2.5Y 6/4) interior, dry; weathered bedrock; 11 percent fine gypsum masses; fragments; strong effervescence, by hcl, 1n. Lab sample # 78P01974. Fourth moist color grayish brown 10YR 5/2.; common fine masses of gypsum concentrations