IDENTIFIERS

  • Current Taxon Name (Soil Name): Stephenville
  • OSD
  • Series Extent
  • User Site ID: S1997OK107002
  • User Pedon ID: S1997OK107002
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - KSSL
  • Lab Pedon # - 97P0396
  • NCSS Pedon Lab Data NASIS Record ID - 10079
  • 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: 35.4816666
  • Std. Longitude: -96.5209427
  • Datum: WGS84
  • Map Unit: 1SDGD4—Stephenville-Darsil-Gullied land complex, 3 to 8 percent slopes
  • Country: US—United States
  • State: Oklahoma
  • County: OK107—Okfuskee
  • MLRA: 84A—North Cross Timbers
  • Regional Office: SC—South Central
  • MLRA Soil Survey Area: SC-STW—Stillwater, Oklahoma
  • 7.5 Minute USGS Quad: 35096-D5—Prague NE, Oklahoma

    • PEDON

  • Current Taxonomic Class: Fine-loamy, siliceous, active, thermic Ultic Haplustalfs
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Stephenville
  • PSC - 40 to 90 cm.
  • Classificaton Date - 9/17/2013
  • Classifier - Walt Schaefer
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - ustic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Stephenville
  • Taxonomic Class - Fine-loamy, siliceous, active, thermic Ultic Haplustalfs
  • Taxon Kind - series
  • Classificaton Date - 4/8/1997
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • QA Status: level 1


    • SITE

  • Parent Material: residuum weathered from sandstone
  • Landscape: hills
  • Landform: hillslope
  • Geomorphic Component Hills: head slope
  • Hill Slope Profile: summit
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: s strong weathered sandstone, unspecified and a dip of 17 to 17 degrees
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/8/1997 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, paralithic

    weakly coherent

    101 - 126

    - 25 -

    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    paralithic contact

    0—20

    40—101

    101—126

    —20—

    —61—

    —25—
    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

    30

    5

    260

    —

    270

    850

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap1—0 to 5 centimeters (0.0 to 2.0 inches);, dark yellowish brown (10YR 4/4), moist; fine sandy loam; 76 percent sand; 18 percent silt; 6 percent clay; weak medium single grain; loose, loose, nonsticky, nonplastic; 21.0 very fine to medium roots throughout; , 1 percent by weight nonflat subrounded very strongly coherent cemented 2-5-75 millimeter sandstone, unspecified fragments observed by weighed method. Lab sample # 97P02396
    Ap2—5 to 10 centimeters (2.0 to 3.9 inches);, dark yellowish brown (10YR 4/4), moist; fine sandy loam; 76 percent sand; 18 percent silt; 6 percent clay; weak medium single grain; loose, loose, nonsticky, nonplastic; 21.0 very fine to medium roots throughout; fragments. Lab sample # 97P02397
    Ap3—10 to 20 centimeters (3.9 to 7.9 inches);, dark yellowish brown (10YR 4/4), moist; fine sandy loam; 75 percent sand; 18 percent silt; 7 percent clay; weak medium single grain; loose, loose, nonsticky, nonplastic; 21.0 very fine to medium roots throughout; fragments; clear smooth boundary. Lab sample # 97P02398
    BE—20 to 40 centimeters (7.9 to 15.7 inches);, yellowish red (5YR 5/6), moist; sandy clay loam; 61 percent sand; 16 percent silt; 23 percent clay; weak medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 very fine roots throughout; fragments; clear smooth boundary. Lab sample # 97P02399
    Bt1—40 to 64 centimeters (15.7 to 25.2 inches);, yellowish red (5YR 5/6), moist; sandy clay loam; 56 percent sand; 13 percent silt; 31 percent clay; 5 percent reddish yellow (5YR 6/6) fine distinct and 10 percent yellowish red (5YR 4/6) fine distinct mottles; moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots throughout; 20 percent prominent clay films on faces of peds and in pores; fragments; gradual smooth boundary. Lab sample # 97P02400. discontinuous - phpvsfiid 1237694; discontinuous - phpvsfiid 1237694
    Bt2—64 to 101 centimeters (25.2 to 39.8 inches);, yellowish red (5YR 5/6), moist; sandy clay loam; 64 percent sand; 8 percent silt; 29 percent clay; 5 percent gray (5YR 6/1) fine distinct and 10 percent yellowish red (5YR 4/6) fine distinct mottles; strong coarse subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots throughout; 20 percent prominent clay films on faces of peds and in pores; , 9 percent by weight nonflat subrounded very strongly coherent cemented 2-5-75 millimeter sandstone, unspecified fragments observed by weighed method; abrupt smooth boundary. Lab sample # 97P02401. discontinuous - phpvsfiid 1237695; discontinuous - phpvsfiid 1237695
    Cr—101 to 126 centimeters (39.8 to 49.6 inches);, red (2.5YR 5/8), moist; bedrock; fragments. Lab sample # 97P02402