IDENTIFIERS

  • Current Taxon Name (Soil Name): Windthorst
  • OSD
  • Series Extent
  • Local Phase: very fine sandy loam
  • User Site ID: S1996TX143007
  • User Pedon ID: 96TX143007
  • Vegetation Plot ID: S1996TX143007
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 96P0306
  • NCSS Pedon Lab Data NASIS Record ID - 68384
  • User Project ID: 2020-MLRA-001
  • Project Name: MLRA 84B - Paluxy Erosional Hillslopes, Central Part
  • Print Date: 2/17/2025

    • 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: 32.2525826
  • Std. Longitude: -98.2016907
  • Datum: WGS84
  • Map Unit: WoB—Windthorst very fine sandy loam, 1 to 5 percent slopes
  • Country: US—United States
  • State: Texas
  • County: TX143—Erath
  • MLRA: 84B—West Cross Timbers
  • Non-MLRA Soil Survey Area: TX143—Erath County, Texas
  • 7.5 Minute USGS Quad: 32098-C2—Knob Hill, Texas

    • PEDON

  • Describers Name: S. Brown T. Sobecki J. Greenwade S. Brown E. Griffin B. Ward
  • Current Taxonomic Class: Fine, mixed, active, thermic Udic Paleustalfs
  • 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 #: 7
  • Correlated Information:
  • Soil Name - Windthorst
  • PSC - 29 to 79 cm.
  • Classificaton Date - 5/13/2015
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - ustic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Windthorst Natv
  • Taxonomic Class - Fine-loamy, mixed Udic Paleustalfs
  • Classificaton Date - 7/15/1996
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1


    • SITE

  • Parent Material: loamy residuum weathered from sandstone and siltstone
  • Landscape: hills
  • Landform: low ridge
  • Geomorphic Component Hills: crest
  • Hill Slope Profile: shoulder
  • Slope Shape Across: linear
  • Slope Shape Down: convex
  • Runoff: high
  • Drainage Class: well
  • Bedrock: noncoherent sandstone and siltstone at 140cm
  • Geology: Lake Merritt member of the Paluxy Sand formation in the Frederickburg group.
  • Surface Fragments:
  • Benchmark Soil?: yes

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/15/1996 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    QUST

    QUST

    Quercus stellata

    Quercus stellata

    post oak

    post oak

    —

    —

    —

    —

    —

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

    ochric epipedon

    abrupt textural change

    argillic horizon

    redox concentrations

    calcic horizon

    secondary carbonates

    0—29

    29—29

    29—114

    62—114

    114—140

    114—140

    —-

    —-

    —-

    —-

    —-

    —-
    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

    —

    —

    399

    —

    135

    752

    —

    234

    17.7

    27.1

    7.7

    —

    —

    —

    —

    —

    418623

    STEPHENVILLE 9NNE, TX

    Coop
    A—0 to 15 centimeters (0.0 to 5.9 inches); brown (7.5YR 5/4), brown (7.5YR 4/4), moist; very fine sandy loam; moderate fine subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; 21.0 fine roots; 3.0 fine pores; fragments; clear smooth boundary. Lab sample # 96P02400
    E—15 to 29 centimeters (5.9 to 11.4 inches); light brown (7.5YR 6/4), brown (7.5YR 5/4), moist; very fine sandy loam; weak fine subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; 21.0 fine roots; 3.0 fine pores; fragments; abrupt smooth boundary. Lab sample # 96P02401
    Bt1—29 to 48 centimeters (11.4 to 18.9 inches);, dark reddish brown (2.5YR 3/4), moist; clay; moderate medium angular blocky parts to moderate fine subangular blocky structure; hard, very firm, moderately sticky, very plastic; 21.0 fine roots; 3.0 fine pores; fragments; gradual smooth boundary. Lab sample # 96P02402
    Bt2—48 to 62 centimeters (18.9 to 24.4 inches);, red (2.5YR 4/6), moist; clay; moderate medium subangular blocky structure; hard, very firm, moderately sticky, very plastic; 21.0 fine roots; fragments; gradual smooth boundary. Lab sample # 96P02403
    Bt3—62 to 83 centimeters (24.4 to 32.7 inches);, 60 percent reddish brown (5YR 5/4) and 20 percent reddish yellow (5YR 7/6) and 20 percent reddish yellow (7.5YR 6/6), moist; sandy clay loam; moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 21.0 fine roots; 3.0 fine pores; fragments; gradual smooth boundary. Lab sample # 96P02404
    Bt4—83 to 114 centimeters (32.7 to 44.9 inches);, 60 percent reddish brown (5YR 4/4) and 20 percent reddish yellow (5YR 6/6) and 20 percent reddish yellow (7.5YR 6/6), moist; sandy clay loam; moderate medium angular blocky parts to moderate medium and coarse subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 21.0 fine roots; 3.0 fine and medium pores; fragments; abrupt smooth boundary. Lab sample # 96P02405
    BCk—114 to 140 centimeters (44.9 to 55.1 inches);, 25 percent reddish yellow (5YR 6/6) and 25 percent reddish yellow (5YR 6/6), moist; loam; weak fine subangular blocky structure; hard, firm, nonsticky, slightly plastic; 0.5 fine roots; 0.5 fine pores; fragments; abrupt smooth boundary. Lab sample # 96P02406. 50% CaCO3 5mm masses and thick concretions disseminated.
    C—140 to 162 centimeters (55.1 to 63.8 inches);, reddish yellow (7.5YR 6/6), moist; loamy very fine sand; massive; hard, very friable, nonsticky, nonplastic; 0.5 fine roots; 3.0 fine pores; fragments; clear wavy boundary. Lab sample # 96P02407. indurated
    2C—162 to 180 centimeters (63.8 to 70.9 inches);, reddish yellow (7.5YR 7/6), moist; loamy very fine sand; massive; hard, very friable, nonsticky, nonplastic; 0.5 fine roots; 3.0 fine and medium pores; fragments. Lab sample # 96P02408. Weekly cemented
    3C—180 to 190 centimeters (70.9 to 74.8 inches); silt loam; fragments. Lab sample # 96P02409