IDENTIFIERS

  • Current Taxon Name (Soil Name): Windthorst
  • OSD
  • Series Extent
  • Local Phase: very fine sandy loam
  • User Site ID: S1977TX143001
  • User Pedon ID: 77TX143001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 78P0389
  • NCSS Pedon Lab Data NASIS Record ID - 45943
  • 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: 32.2586098
  • Std. Longitude: -98.1927795
  • Datum: WGS84
  • Location Description: 4 Km N of the intersection of Hwys 281 and 377 on Hwy 281. 92 meters E of rd in field
  • Map Unit: CtC—Clairette loam, 3 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: L.Wilding C.Stahnke J.Moore R.Dreese
  • Current Taxonomic Class: Fine-silty, siliceous, active, thermic Udic Paleustalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Windthorst
  • PSC - 20 to 70 cm.
  • Classificaton Date - 9/24/2017
  • Classifier - Chance M. Robinson
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Windthorst
  • Taxonomic Class - Fine, mixed, thermic Udic Paleustalf
  • Taxon Kind - taxadjunct
  • Classificaton Date - 9/1/1977
  • Moisture Class - ustic
  • Moisture SUBClass - udic
  • 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: medium
  • Drainage Class: well
  • Bedrock: noncoherent sandstone, unspecified at 163cm with 10 to <45
  • Geology: Georges Creek member of the Paluxy Sand formation in the Fredericksburg group.
  • Surface Fragments:
  • Benchmark Soil?: yes

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1977 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - hayland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    abrupt textural change

    redox concentrations

    0—20

    20—107

    20—20

    56—94

    —-

    —-

    —-

    —-
    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

    3

    —

    —

    409

    —

    113

    752

    —

    234

    17.7

    27.1

    7.7

    —

    —

    —

    —

    —

    418623

    STEPHENVILLE 9NNE, TX

    Coop
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); brown (7.5YR 5/4) interior, brown (7.5YR 4/4) interior, moist; very fine sandy loam; massive; friable; 5.5 roots; fragments; abrupt smooth boundary. Lab sample # 78P02117. Few B2t fragments mixed in the horizon; many roots
    Bt1—20 to 43 centimeters (7.9 to 16.9 inches); light red (2.5YR 6/6) interior, red (2.5YR 4/6) interior, moist; clay loam; moderate medium subangular blocky structure; very firm; 2.5 roots; dark red (2.5YR 3/6) coats on faces of peds and 37 percent clay films on horizontal faces of peds; 11 percent worm casts; fragments; clear smooth boundary. Lab sample # 78P02118. common worm casts concentrations; common clay films surface features on horizontal faces of peds; common roots; continuous - phpvsfiid 1548368; continuous - phpvsfiid 1548368
    Bt2—43 to 56 centimeters (16.9 to 22.0 inches); light red (2.5YR 6/6) interior, red (2.5YR 5/6) interior, moist; clay loam; moderate medium subangular blocky structure; very firm; 2.5 roots; dark red (2.5YR 3/6) coats on faces of peds and 37 percent clay films on horizontal faces of peds; 11 percent worm casts; fragments; clear smooth boundary. Lab sample # 78P02119. common worm casts concentrations; common clay films surface features on horizontal faces of peds; common roots; continuous - phpvsfiid 1548366; continuous - phpvsfiid 1548366
    Bt3—56 to 79 centimeters (22.0 to 31.1 inches); 70 percent reddish yellow (5YR 6/6) interior and 70 percent yellowish red (5YR 4/6), 70 percent yellowish red (5YR 5/6) interior, moist; clay loam; 11 percent red (2.5YR 5/6) medium distinct mottles; weak medium and coarse subangular blocky, and weak coarse prismatic structure; firm; 2.5 roots; reddish brown (5YR 4/4) coats on faces of peds and 37 percent clay films on horizontal faces of peds; 11 percent worm casts; fragments; gradual smooth boundary. Lab sample # 78P02120. Pores inside peds partially lined or plugged. Very few faint MN stains. 30 percent 5YR 44 and 46 with the 5YR 44 occurring as ped coats; common worm casts concentrations; common clay films surface features on horizontal faces of peds; common roots; common medium distinct 2.5YR56 mottles; patchy - phpvsfiid 1548364; patchy - phpvsfiid 1548364
    Bt4—79 to 94 centimeters (31.1 to 37.0 inches); reddish yellow (7.5YR 8/6) interior, reddish yellow (7.5YR 7/6) interior, moist; loam; weak coarse subangular blocky, and weak coarse prismatic structure; firm; 2.5 roots; clay films on horizontal faces of peds and reddish brown (5YR 4/4) coats on faces of peds; 1 percent worm casts; 2 percent by volume 2-39-75 millimeter sandstone, unspecified fragments; gradual smooth boundary. Lab sample # 78P02121. Patchy linings of pores in ped interiors. Occasional FeMn stains. 25 perct 5YR 44 and 46 with the 5YR 44 occurring as ped coats; few worm casts concentrations; common roots; patchy - phpvsfiid 1548362; patchy - phpvsfiid 1548362
    Bt5—94 to 107 centimeters (37.0 to 42.1 inches); reddish yellow (7.5YR 8/6) interior, reddish yellow (7.5YR 7/6) interior, moist; loam; weak coarse subangular blocky, and weak coarse prismatic structure; firm; 2.5 roots; clay films on vertical faces of peds; 1 percent worm casts; 2 percent by volume 2-39-75 millimeter sandstone, unspecified fragments; gradual smooth boundary. Lab sample # 78P02122. few worm casts concentrations; common roots; patchy - phpvsfiid 1548361; patchy - phpvsfiid 1548361
    C1—107 to 147 centimeters (42.1 to 57.9 inches); light brown (7.5YR 6/4) interior and pink (7.5YR 8/4) interior, brown (7.5YR 5/4) interior and pink (7.5YR 7/4) interior, moist; very fine sandy loam; 1 percent reddish yellow (7.5YR 6/6) medium distinct mottles; friable by silica; brittle; 0.5 roots; 15 percent clay films on vertical faces of peds; 1 percent worm casts; fragments; gradual smooth boundary. Lab sample # 78P02123. Subsoil sample 78P2124 taken at 127 to 147 cm; few worm casts concentrations; few clay films surface features on vertical faces of peds; few roots; few medium distinct 7.5YR66 mottles
    C2—147 to 163 centimeters (57.9 to 64.2 inches); pink (7.5YR 8/4) interior, pink (7.5YR 7/4) interior, moist; very fine sandy loam; friable; 0.5 roots; light yellowish brown (10YR 6/4) coats on faces of peds; 1 percent worm casts and 1 percent carbonate concretions; fragments; gradual smooth boundary. Lab sample # 78P02125. Noncalcareous matrix. Some oxidatio n along bedding planes; few worm casts concentrations; few very fine lime concretions concentrations; few roots
    Cr—163 to 298 centimeters (64.2 to 117.3 inches); very pale brown (10YR 8/2) interior, light gray (10YR 7/2) interior, moist; very fine sandy loam; 1 percent reddish yellow (5YR 6/6) medium distinct mottles; firm by silica; brittle; 0.5 roots; 1 percent worm casts and 1 percent carbonate concretions; fragments. Lab sample # 78P02126. Noncalcareous matrix. Some oxidation along bedding planes. The sandstone appears to be exceptionally uniform; few worm casts concentrations; few very fine lime concretions concentrations; few roots; few medium distinct 5YR66 mottles