IDENTIFIERS

  • Current Taxon Name (Soil Name): Twichell
  • OSD
  • Series Extent
  • User Site ID: S1984TX357001
  • User Pedon ID: S1984TX357001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0170
  • NCSS Pedon Lab Data NASIS Record ID - 55886
  • Print Date: 2/16/2025

    • 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: 36.3194427
  • Std. Longitude: -100.8688889
  • Datum: WGS84
  • Location Description: 8 miles south Perryton.
  • State: Texas
  • County: TX357—Ochiltree

    • PEDON

  • Current Taxonomic Class: Fine, mixed, superactive, mesic Aridic Haplusterts
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: research site
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Twichell
  • PSC - 25 to 100 cm.
  • Classificaton Date - 2/14/2008
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - ustic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Sherm
  • Classificaton Date - 10/1/1984
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/1/1984 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • 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

    mollic epipedon

    slickensides

    lithologic discontinuity

    calcic horizon

    0—127

    18—101

    101—375

    210—375

    —127—

    —83—

    —274—

    —165—
    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

    0

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap1—0 to 13 centimeters (0.0 to 5.1 inches); dark grayish brown (10YR 4/2) interior, very dark grayish brown (10YR 3/2) interior, moist; silty clay loam; weak fine granular, and weak fine subangular blocky structure; slightly hard, very friable; 5.5 roots; fragments; abrupt smooth boundary. Lab sample # 85P00830. Many residues.; many roots
    Ap2—13 to 18 centimeters (5.1 to 7.1 inches); dark grayish brown (10YR 4/2) interior, very dark grayish brown (10YR 3/2) interior, moist; silty clay loam; weak coarse blocky, and structureless massive; hard, firm; fragments; clear smooth boundary. Lab sample # 85P00831
    Bss—18 to 58 centimeters (7.1 to 22.8 inches); dark grayish brown (10YR 4/2) interior, very dark grayish brown (10YR 3/2) interior, moist; silty clay; moderate medium blocky structure; extremely hard, very firm; 2.5 roots; 15 percent pressure faces; fragments; gradual smooth boundary. Lab sample # 85P00832. few pressure faces surface features; common roots
    Bssk—58 to 101 centimeters (22.8 to 39.8 inches); brown (10YR 5/3) interior, dark brown (10YR 3/3) interior, moist; silty clay loam; moderate medium blocky structure; extremely hard, very firm; 0.5 roots; 15 percent pressure faces; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # 85P00833. Few films and threads.; few pressure faces surface features; few roots
    2Ak—101 to 127 centimeters (39.8 to 50.0 inches); brown (7.5YR 4/2) interior, dark brown (7.5YR 3/2) interior, moist; silty clay loam; weak fine subangular blocky, and moderate medium subangular blocky structure; hard, friable; 0.5 roots; 0.5 tubular pores; fragments; strong effervescence, by hcl, 1n; diffuse boundary. Lab sample # 85P00834. Few threads and films.; few roots
    2Bw1—127 to 165 centimeters (50.0 to 65.0 inches); brown (7.5YR 4/4) interior, dark reddish brown (5YR 3/4) interior, moist; silty clay loam; weak coarse prismatic, and moderate medium blocky structure; hard, friable; 0.5 fine roots; 0.5 tubular pores; fragments; strong effervescence, by hcl, 1n; diffuse boundary. Lab sample # 85P00835. few fine roots
    2Bw2—165 to 210 centimeters (65.0 to 82.7 inches); reddish brown (5YR 5/4) interior, reddish brown (5YR 4/4) interior, moist; silty clay loam; weak coarse prismatic, and moderate medium blocky structure; hard, friable; 0.5 fine roots; 0.5 tubular pores; fragments; strong effervescence, by hcl, 1n; abrupt smooth boundary. Lab sample # 85P00837. few fine roots
    2Bkk—210 to 240 centimeters (82.7 to 94.5 inches); pink (5YR 8/4) interior, pink (5YR 7/4) interior, moist; silty clay; weak medium platy, and weak coarse prismatic structure; friable, weakly cemented; 2.5 medium tubular pores; fragments; violent effervescence, by hcl, 1n; diffuse boundary. Lab sample # 85P00838. 39% CaCO3.
    2Bk1—240 to 295 centimeters (94.5 to 116.1 inches); pink (5YR 7/4) interior, light reddish brown (5YR 6/4) interior, moist; silty clay loam; weak coarse prismatic, and weak medium platy structure; friable, weakly cemented; 2.5 tubular pores; fragments; violent effervescence, by hcl, 1n; diffuse boundary. Lab sample # 85P00839. 25% CaCO3.
    2Bk2—295 to 360 centimeters (116.1 to 141.7 inches); light reddish brown (5YR 6/4) interior, reddish brown (5YR 5/4) interior, moist; silty clay loam; weak coarse prismatic, and weak medium platy structure; friable, weakly cemented; fragments; violent effervescence, by hcl, 1n; diffuse boundary. Lab sample # 85P00840. 30% CaCO3.
    2Bk3—360 to 375 centimeters (141.7 to 147.6 inches); light reddish brown (5YR 6/4) interior, reddish brown (5YR 5/4) interior, moist; clay loam; weak coarse prismatic, and moderate medium blocky structure; hard, friable; fragments; strong effervescence, by hcl, 1n. Lab sample # 85P00841