IDENTIFIERS

  • Current Taxon Name (Soil Name): Twichell
  • OSD
  • Series Extent
  • User Site ID: S1994TX195006
  • User Pedon ID: S1994TX195006
  • User Site Association ID: WW MMA - NO SITE DATA
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 94P0643
  • NCSS Pedon Lab Data NASIS Record ID - 66816
  • Print Date: 11/21/2024

    • LOCATION

  • State: Texas
  • County: TX195—Hansford
  • MLRA: 77A—Southern High Plains, Northern Part
  • Non-MLRA Soil Survey Area: TX195—Hansford County, Texas

    • PEDON

  • Current Taxonomic Class: Fine, mixed, superactive, mesic Aridic Haplusterts
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: research site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 6
  • Correlated Information:
  • Soil Name - Twichell
  • PSC - 25 to 100 cm.
  • Classificaton Date - 2/13/2008
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - udic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Pullman
  • Classificaton Date - 7/20/1994
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Runoff: low
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/20/1994 (actual site observation date)
  • Surface Cover Properties:
  • 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

    lithologic discontinuity

    slickensides

    0—25

    81—

    97—130

    —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

    1

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 25 centimeters (0.0 to 9.8 inches); dark grayish brown (10YR 4/2) interior, very dark grayish brown (10YR 3/2) interior, moist; silty clay loam; weak fine and medium subangular blocky structure; very hard, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 very fine and fine roots throughout; 0.5 fine low-continuity tubular pores; fragments; noneffervescent, by hcl, 1n; abrupt smooth boundary. Lab sample # 94P04624
    Bt—25 to 81 centimeters (9.8 to 31.9 inches); yellowish brown (10YR 5/4) interior, dark yellowish brown (10YR 4/4), moist; silty clay loam; weak fine and medium subangular blocky structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 very fine and fine roots throughout; fragments; strong effervescence, by hcl, 1n; abrupt smooth boundary. Lab sample # 94P04625
    Btb—81 to 97 centimeters (31.9 to 38.2 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; 21.0 very fine and fine roots throughout; 30 percent distinct very dark grayish brown (10YR 3/2), moist, clay films on faces of peds; 1 percent threadlike noncoherent cemented very pale brown (10YR 8/2) carbonate threads between peds; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # 94P04626. patchy - phpvsfiid 389249; patchy - phpvsfiid 389249
    Bssb—97 to 130 centimeters (38.2 to 51.2 inches);, 75 percent very dark grayish brown (10YR 3/2) interior and 25 percent dark yellowish brown (10YR 4/4) interior, moist; silty clay loam; weak medium subangular blocky structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 0.5 very fine and fine roots throughout; 3.0 very fine and fine moderate-continuity tubular pores; 2 percent distinct very pale brown (10YR 8/3), moist, slickensides (pedogenic) on faces of peds; 1 percent fine spherical weakly coherent cemented black (N 2/0) iron-manganese concretions throughout; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # 94P04627. patchy - phpvsfiid 389250; patchy - phpvsfiid 389250
    Btb1—130 to 152 centimeters (51.2 to 59.8 inches);, 40 percent dark yellowish brown (10YR 4/4) interior and 60 percent very dark grayish brown (10YR 3/2) interior, moist; silty clay loam; weak fine and medium subangular blocky structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 fine and medium moderate-continuity interstitial pores; 30 percent distinct very dark grayish brown (10YR 3/2), moist, clay films on faces of peds; 1 percent fine spherical weakly coherent cemented black (N 2/0) iron-manganese concretions throughout; 2 percent fine threadlike noncoherent cemented very pale brown (10YR 8/3) carbonate threads between peds; fragments; slight effervescence, by hcl, 1n; clear smooth boundary. Lab sample # 94P04628. patchy - phpvsfiid 389251; patchy - phpvsfiid 389251
    Btb2—152 to 191 centimeters (59.8 to 75.2 inches);, dark yellowish brown (10YR 4/4) interior, moist; silty clay; moderate coarse prismatic, and moderate fine and medium angular blocky structure; firm, noncoherent, moderately sticky, moderately plastic; brittle; 3.0 fine moderate-continuity tubular pores; 99 percent distinct dark yellowish brown (10YR 3/4), moist, clay films on faces of peds; 1 percent fine spherical weakly coherent cemented black (N 2/0) iron-manganese concretions throughout; 2 percent fine and medium threadlike noncoherent cemented very pale brown (10YR 8/3) carbonate threads throughout and 1 percent fine and medium irregular noncoherent cemented very pale brown (10YR 8/3) carbonate nodules throughout; fragments; very slight effervescence, by hcl, 1n; abrupt smooth boundary. Lab sample # 94P04629. continuous - phpvsfiid 389252; continuous - phpvsfiid 389252
    Btkb1—191 to 234 centimeters (75.2 to 92.1 inches);, brown (7.5YR 4/4) interior, moist; silty clay; moderate coarse prismatic, and moderate fine and medium angular blocky structure; firm, noncoherent, moderately sticky, moderately plastic; brittle; 3.0 very fine and fine moderate-continuity tubular pores; 5 percent distinct pinkish white (7.5YR 8/2), moist, carbonate coats on faces of peds and 99 percent distinct brown (7.5YR 4/3), moist, clay films on faces of peds; 10 percent fine and medium irregular noncoherent cemented pinkish white (7.5YR 8/2) carbonate nodules throughout and 5 percent fine and medium threadlike noncoherent cemented pinkish white (7.5YR 8/2) carbonate threads between peds; fragments; slight effervescence, by hcl, 1n; clear smooth boundary. Lab sample # 94P04630. continuous - phpvsfiid 389253; continuous - phpvsfiid 389254; continuous - phpvsfiid 389253; continuous - phpvsfiid 389254
    Btkb2—234 to 259 centimeters (92.1 to 102.0 inches);, brown (7.5YR 5/4), moist; silty clay loam; moderate coarse prismatic structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 very fine and fine moderate-continuity tubular pores; 70 percent distinct brown (7.5YR 4/4), moist, clay films on faces of peds; 15 percent fine and medium irregular noncoherent cemented pink (7.5YR 8/3) carbonate nodules throughout; fragments; violent effervescence, by hcl, 1n. Lab sample # 94P04631. continuous - phpvsfiid 389255; continuous - phpvsfiid 389255
    Btkb'1—259 to 284 centimeters (102.0 to 111.8 inches); 40 percent yellowish red (5YR 5/6), 60 percent yellowish red (5YR 4/6) interior, moist; clay loam; moderate fine and medium subangular blocky structure; 3.0 very fine and fine moderate-continuity tubular pores; 1 percent distinct black (N 2/0) manganese or iron-manganese stains on faces of peds and 60 percent distinct reddish brown (5YR 4/4) clay films on faces of peds; 2 percent fine and medium threadlike noncoherent cemented pink (7.5YR 8/3) carbonate threads between peds and 3 percent fine and medium irregular noncoherent cemented pink (7.5YR 8/3) carbonate nodules throughout; fragments; slight effervescence, by hcl, 1n. Lab sample # 94P04632. patchy - phpvsfiid 389256; continuous - phpvsfiid 389257; patchy - phpvsfiid 389256; continuous - phpvsfiid 389257
    Btkb'2—284 to 335 centimeters (111.8 to 131.9 inches);, 60 percent pink (7.5YR 7/4) interior and 40 percent brown (7.5YR 5/4) interior, moist; clay loam; weak fine and medium subangular blocky structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 fine and medium moderate-continuity tubular pores; fragments; violent effervescence, by hcl, 1n. Lab sample # 94P04633
    Btkb'3—335 to 399 centimeters (131.9 to 157.1 inches);, strong brown (7.5YR 5/6) interior and pink (7.5YR 8/3) interior, moist; silty clay loam; moderate coarse prismatic, and moderate fine and medium structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 very fine and fine moderate-continuity tubular pores; fragments; violent effervescence, by hcl, 1n. Lab sample # 94P04634
    Btkb'4—399 to 457 centimeters (157.1 to 179.9 inches);, 30 percent pink (7.5YR 8/3) interior and 30 percent light brown (7.5YR 6/4) interior and 20 percent brown (7.5YR 5/4) interior, moist; silty clay loam; moderate coarse prismatic, and moderate fine and medium angular blocky structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 very fine and fine moderate-continuity tubular pores; 45 percent distinct brown (7.5YR 5/3), moist, clay films on faces of peds and 45 percent distinct brown (7.5YR 4/4), moist, clay films on faces of peds; 1 percent fine and medium spherical weakly coherent cemented pink (7.5YR 8/3) carbonate concretions throughout and 10 percent fine and medium threadlike noncoherent cemented light brown (7.5YR 8/3) carbonate threads between peds and 10 percent fine and medium irregular noncoherent cemented brown (7.5YR 8/3) carbonate nodules throughout; fragments; violent effervescence, by hcl, 1n. Lab sample # 94P04635. continuous - phpvsfiid 389258; continuous - phpvsfiid 389259; continuous - phpvsfiid 389258; continuous - phpvsfiid 389259
    Btkb'5—457 to 544 centimeters (179.9 to 214.2 inches);, 70 percent brown (7.5YR 5/4) interior and 30 percent pink (7.5YR 8/3) interior, moist; silty clay loam; moderate very fine and fine angular blocky, and moderate coarse prismatic structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 21.0 very fine and fine high-continuity tubular pores; 1 percent distinct black (N 2/0), moist, manganese or iron-manganese stains on faces of peds and 99 percent distinct brown (7.5YR 5/4), moist, clay films on faces of peds; 15 percent fine and medium irregular noncoherent cemented pink (7.5YR 8/3) carbonate nodules throughout; fragments; strong effervescence, by hcl, 1n. Lab sample # 94P04636. patchy - phpvsfiid 389260; continuous - phpvsfiid 389261; patchy - phpvsfiid 389260; continuous - phpvsfiid 389261
    Btkb"1—544 to 610 centimeters (214.2 to 240.2 inches);, 50 percent light brown (7.5YR 6/4) interior and 50 percent light yellowish brown (10YR 6/4) interior, moist; silty clay loam; moderate coarse prismatic, and moderate very fine and fine angular blocky structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 fine and medium high-continuity tubular pores; 99 percent distinct light brown (7.5YR 6/4), moist, clay films on faces of peds; 1 percent fine spherical extremely weakly coherent cemented black (N 2/0) iron-manganese concretions throughout; 1 percent fine irregular noncoherent cemented pink (7.5YR 8/3) carbonate nodules throughout; fragments; strong effervescence, by hcl, 1n. Lab sample # 94P04637. continuous - phpvsfiid 389262; continuous - phpvsfiid 389262
    Btkb"2—610 to 668 centimeters (240.2 to 263.0 inches);, yellowish brown (10YR 5/4) interior, moist; silty clay; moderate fine and medium angular blocky structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 1 percent distinct black (N 2/0), moist, manganese or iron-manganese stains on faces of peds and 99 percent distinct dark yellowish brown (10YR 4/6), moist, clay films on faces of peds; 5 percent fine and medium irregular noncoherent cemented very pale brown (10YR 8/2) carbonate nodules throughout; fragments; violent effervescence, by hcl, 1n. Lab sample # 94P04638. discontinuous - phpvsfiid 389263; continuous - phpvsfiid 389264; discontinuous - phpvsfiid 389263; continuous - phpvsfiid 389264