IDENTIFIERS

  • Current Taxon Name (Soil Name): Decobb
  • OSD
  • Series Extent
  • User Site ID: S1996OK065004
  • User Pedon ID: S1996OK065004
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - KSSL
  • Lab Pedon # - 96P0380
  • NCSS Pedon Lab Data NASIS Record ID - 68458
  • Print Date: 12/6/2025

    • 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: 34.4984167
  • Std. Longitude: -99.3418889
  • Datum: WGS84
  • Township: 1 S
  • Range: 20 W
  • Section: 6
  • PLSS Details: 90 feet east and 1800 feet north of the southwest corner
  • Location Description: Jackson County, Oklahoma; From the intersection of US highway 283 and OK state highway 5 south of Altus, about 0.5 miles west and 0.66 miles south on county roads, then 90 feet east; about 90 feet east and 1800 feet north of southwest corner of Section 6, Township 1 south, Range 20 west.
  • Map Unit: DcbB—Decobb very fine sandy loam, 1 to 3 percent slopes
  • Country: US—United States
  • State: Oklahoma
  • County: OK065—Jackson
  • MLRA: 78C—Central Rolling Red Plains, Eastern Part
  • Regional Office: SC—South Central
  • MLRA Soil Survey Area: SC-ALT—Altus, Oklahoma
  • Non-MLRA Soil Survey Area: OK065—Jackson County, Oklahoma
  • 7.5 Minute USGS Quad: 34099-D3—Elmer, Oklahoma

    • PEDON

  • Describers Name: r.gelner t.sobecki d.gelner d.ressel c.salisbury s.keenan
  • Current Taxonomic Class: Fine-loamy, mixed, active, thermic Typic 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 #: 4
  • Correlated Information:
  • Soil Name - Decobb
  • PSC - 57 to 107 cm.
  • Classificaton Date - 1/31/2012
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - ustic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Decobb
  • Classificaton Date - 9/11/1996
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • QA Status: level 1


    • SITE

  • Parent Material: fine-loamy residuum weathered from sandstone
  • Landscape: dissected plains
  • Landform: hillslope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: weakly coherent slight weathered sandstone, unspecified at 159cm
  • Geology: San Angelo Formation Of Permian Age formation.
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/11/1996 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, paralithic

    weakly coherent

    159 - 200

    - 41 -

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

    ochric epipedon

    argillic horizon

    secondary carbonates

    paralithic materials

    0—45

    57—127

    150—159

    159—200

    —45—

    —70—

    —9—

    —41—
    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

    1

    —

    —

    404

    —

    180

    660

    —

    210

    16.7

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 12 centimeters (0.0 to 4.7 inches);, dark brown (7.5YR 3/4) exterior, moist; loam; weak medium granular structure; very friable; fragments; noneffervescent, by hcl, 1n; strongly acid, pH 5.5, hellige-truog; abrupt smooth boundary. Lab sample # 96P02944; moist when described; observed in trench
    A—12 to 45 centimeters (4.7 to 17.7 inches);, dark brown (7.5YR 3/3) broken face, moist; fine sandy loam; moderate medium granular structure; very friable; fragments; noneffervescent, by hcl, 1n; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 96P02945; moist when described; observed in trench
    BA—45 to 57 centimeters (17.7 to 22.4 inches);, dark reddish brown (5YR 3/4) broken face, moist; sandy clay loam; moderate medium subangular blocky structure; very friable; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 96P02946; moist when described; observed in trench
    Bt1—57 to 91 centimeters (22.4 to 35.8 inches);, dark reddish brown (5YR 3/4) broken face, moist; sandy clay loam; strong coarse prismatic parts to moderate medium subangular blocky structure; friable; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 96P02947; moist when described; observed in trench
    Bt2—91 to 127 centimeters (35.8 to 50.0 inches);, reddish brown (5YR 4/4) broken face, moist; sandy clay loam; strong coarse prismatic parts to moderate medium subangular blocky structure; friable; fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 96P02948; moist when described; observed in trench
    BC—127 to 150 centimeters (50.0 to 59.1 inches);, yellowish red (5YR 4/6) broken face, moist; sandy clay loam; strong coarse prismatic parts to moderate medium subangular blocky structure; friable; fragments; very slight effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 96P02949; moist when described; observed in trench
    BCk—150 to 159 centimeters (59.1 to 62.6 inches);, red (2.5YR 4/6) broken face, moist; very fine sandy loam; weak medium subangular blocky structure; very friable; 25 percent fine and medium carbonate masses; 5 percent by volume nonflat subangular moderately coherent cemented 2-5-20 millimeter sandstone, unspecified fragments observed by visual inspection method; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 96P02950; moist when described; observed in trench. this horizon is discontinuous.
    Cr—159 to 200 centimeters (62.6 to 78.7 inches);, 40 percent red (2.5YR 4/6) broken face and 60 percent reddish brown (5YR 5/3) broken face, moist; bedrock; weakly coherent; fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 96P02951; slightly moist when described; observed in trench. unweathered bedrock is bedded sandstone.