IDENTIFIERS

  • Current Taxon Name (Soil Name): Twichell
  • OSD
  • Series Extent
  • User Site ID: S1994TX341001
  • User Pedon ID: S1994TX341001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 94P0651
  • NCSS Pedon Lab Data NASIS Record ID - 66824
  • Print Date: 11/24/2024

    • LOCATION

  • State: Texas
  • County: TX341—Moore
  • MLRA: 77A—Southern High Plains, Northern Part
  • Non-MLRA Soil Survey Area: TX341—Moore County, Texas

    • PEDON

  • Describers Name: W. Michael Risenger
  • 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 PDP 3.x
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Twichell
  • PSC - 25 to 100 cm.
  • Classificaton Date - 2/14/2008
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - udic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Sherm
  • Classificaton Date - 7/21/1994
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/21/1994 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    lithologic discontinuity

    calcic horizon

    0—36

    76—

    185—218

    —36—

    —-

    —-
    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

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    Ap—0 to 15 centimeters (0.0 to 5.9 inches);, dark brown (7.5YR 3/2) interior, moist; silty clay loam; moderate fine subangular blocky parts to moderate fine and medium granular structure; hard, friable, noncoherent, slightly sticky, slightly plastic; brittle; 21.0 very fine and fine roots throughout; 3.0 very fine and fine low-continuity tubular pores; fragments; noneffervescent; abrupt smooth boundary. Lab sample # 94P04755
    Bt1—15 to 36 centimeters (5.9 to 14.2 inches);, dark brown (7.5YR 3/2) interior, moist; silty clay; strong medium angular blocky structure; very firm, noncoherent, moderately sticky, moderately plastic; brittle; 3.0 very fine and fine roots throughout; 0.5 very fine and fine moderate-continuity tubular pores; distinct dark brown (7.5YR 3/2), moist, clay films on faces of peds; fragments; noneffervescent; clear smooth boundary. Lab sample # 94P04756. continuous - phpvsfiid 391712; continuous - phpvsfiid 391712
    Bt2—36 to 58 centimeters (14.2 to 22.8 inches);, brown (7.5YR 4/2) interior, moist; silty clay; strong medium angular blocky structure; very firm, noncoherent, moderately sticky, moderately plastic; brittle; 3.0 very fine and fine roots throughout; 3.0 very fine and fine moderate-continuity tubular pores; distinct dark brown (7.5YR 3/2), moist, clay films on faces of peds; fragments; noneffervescent; gradual smooth boundary. Lab sample # 94P04757. continuous - phpvsfiid 391713; continuous - phpvsfiid 391713
    Btk3—58 to 76 centimeters (22.8 to 29.9 inches);, brown (7.5YR 4/3) interior, moist; silty clay; moderate fine and medium angular blocky structure; firm, noncoherent, slightly sticky, slightly plastic; 0.5 very fine and fine roots throughout; 0.5 very fine and fine moderate-continuity tubular pores; 2 percent distinct pinkish white (7.5YR 8/2), moist, carbonate coats on faces of peds and 15 percent faint brown (7.5YR 4/3), moist, clay films on faces of peds; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # 94P04758. patchy - phpvsfiid 391714; patchy - phpvsfiid 391714
    Ab—76 to 94 centimeters (29.9 to 37.0 inches);, brown (7.5YR 4/3) interior, moist; silty clay loam; weak fine and medium subangular blocky structure; hard, firm, noncoherent, slightly sticky, slightly plastic; 0.5 very fine and fine roots throughout; 3.0 very fine and fine moderate-continuity tubular pores; 2 percent distinct pink (7.5YR 8/3), moist, carbonate coats on faces of peds and 30 percent faint brown (7.5YR 4/3), moist, clay films on faces of peds; fragments; slight effervescence, by hcl, 1n; clear smooth boundary. Lab sample # 94P04759. patchy - phpvsfiid 391716; patchy - phpvsfiid 391716
    Btb1—94 to 152 centimeters (37.0 to 59.8 inches);, reddish brown (5YR 4/4) interior, moist; silty clay loam; weak coarse prismatic parts to moderate fine and medium subangular blocky structure; firm, noncoherent, slightly sticky, slightly plastic; brittle; 0.5 very fine and fine roots throughout; 0.5 very fine and fine moderate-continuity tubular pores; 30 percent distinct reddish brown (5YR 4/4), moist, clay films on faces of peds; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # 94P04760. patchy - phpvsfiid 391718; patchy - phpvsfiid 391718
    Btb2—152 to 185 centimeters (59.8 to 72.8 inches);, yellowish red (5YR 4/6) interior, moist; silty clay loam; weak coarse prismatic parts to moderate fine and medium subangular blocky structure; firm, noncoherent, slightly sticky, slightly plastic; brittle; 0.5 very fine and fine roots throughout; 0.5 very fine and fine moderate-continuity tubular pores; 30 percent distinct yellowish red (5YR 4/6), moist, clay films on faces of peds; fragments; slight effervescence, by hcl, 1n. Lab sample # 94P04761. patchy - phpvsfiid 391719; patchy - phpvsfiid 391719
    Btkb1—185 to 218 centimeters (72.8 to 85.8 inches);, pink (5YR 7/4), moist; silty clay loam; weak fine and medium subangular blocky structure; hard, friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 very fine to medium moderate-continuity tubular pores; 5 percent spherical 5YR (5YR) carbonate nodules throughout; fragments; violent effervescence, by hcl, 1n; clear smooth boundary. Lab sample # 94P04762
    Btkb2—218 to 269 centimeters (85.8 to 105.9 inches);, yellowish red (5YR 5/6), moist; silty clay loam; weak medium subangular blocky structure; slightly hard, friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 fine and medium moderate-continuity tubular pores; fragments; strong effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # 94P04763. Ancient prairie dog krotovina?
    Btkb3—269 to 335 centimeters (105.9 to 131.9 inches);, yellowish red (5YR 5/8) interior, moist; silty clay loam; weak medium subangular blocky structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 fine and medium moderate-continuity tubular pores; 5 percent distinct pink (5YR 8/3), moist, carbonate coats on faces of peds; 5 percent fine and medium spherical noncoherent cemented pink (5YR 8/3) carbonate nodules throughout; fragments; violent effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # 94P04764. patchy - phpvsfiid 391720; patchy - phpvsfiid 391720
    Btkb4—335 to 394 centimeters (131.9 to 155.1 inches);, yellowish red (5YR 5/6) interior, moist; silty clay loam; weak medium subangular blocky structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 fine and medium moderate-continuity tubular pores; 1 percent distinct black (N 2/0), moist, manganese or iron-manganese stains on faces of peds and 5 percent distinct pink (5YR 8/3), moist, carbonate coats on faces of peds; 10 percent fine and medium spherical noncoherent cemented pink (5YR 8/3) carbonate nodules throughout; fragments; strong effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # 94P04765. patchy - phpvsfiid 391721; patchy - phpvsfiid 391722; patchy - phpvsfiid 391721; patchy - phpvsfiid 391722
    Btkb5—394 to 462 centimeters (155.1 to 181.9 inches);, yellowish red (5YR 5/6), moist; silty clay loam; weak medium subangular blocky structure; friable, slightly sticky, slightly plastic; brittle; 3.0 fine and medium moderate-continuity tubular pores; 2 percent distinct pink (5YR 8/3), moist, carbonate coats on faces of peds and 30 percent distinct yellowish red (5YR 5/6), moist, clay films on faces of peds; 5 percent fine and medium spherical noncoherent cemented pink (5YR 8/3) carbonate nodules throughout and 5 percent fine and medium spherical weakly coherent cemented pink (5YR 8/3) carbonate concretions throughout; fragments; strong effervescence; gradual smooth boundary. Lab sample # 94P04766. Krotovina in tube #1. Described tube #2.; continuous - phpvsfiid 391723; patchy - phpvsfiid 391724; continuous - phpvsfiid 391723; patchy - phpvsfiid 391724
    Btkb6—462 to 538 centimeters (181.9 to 211.8 inches);, yellowish red (5YR 5/6) interior, moist; silty clay loam; moderate coarse prismatic parts to moderate fine and medium angular blocky structure; friable, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 fine and medium high-continuity tubular pores; 2 percent distinct pink (7.5YR 8/3), moist, carbonate coats on faces of peds and 2 percent distinct manganese or iron-manganese stains on faces of peds and 75 percent distinct brown (7.5YR 4/3), moist, clay films on faces of peds; 15 percent fine and medium irregular noncoherent cemented pink (7.5YR 8/3) carbonate nodules throughout and 1 percent fine and medium spherical weakly coherent cemented pink (7.5YR 7/4) carbonate concretions throughout; fragments; strong effervescence, by hcl, 1n; diffuse wavy boundary. Lab sample # 94P04767. continuous - phpvsfiid 391725; patchy - phpvsfiid 391726; patchy - phpvsfiid 391727; continuous - phpvsfiid 391725; patchy - phpvsfiid 391726; patchy - phpvsfiid 391727
    Btkb7—538 to 599 centimeters (211.8 to 235.8 inches);, brown (7.5YR 5/4) interior, moist; silty clay loam; moderate fine and medium subangular blocky structure; firm, noncoherent, slightly sticky, slightly plastic; brittle; 0.5 fine and medium moderate-continuity tubular pores; 75 percent distinct brown (7.5YR 4/3) clay films on faces of peds; 15 percent fine and medium spherical noncoherent cemented pink (7.5YR 8/3) carbonate nodules throughout and 2 percent fine and medium spherical weakly coherent cemented pink (7.5YR 7/4) carbonate concretions throughout; fragments; violent effervescence, by hcl, 1n; diffuse wavy boundary. Lab sample # 94P04768. continuous - phpvsfiid 391728; continuous - phpvsfiid 391728
    Btkb8—599 to 650 centimeters (235.8 to 255.9 inches);, 85 percent brown (7.5YR 5/4) interior and 15 percent pink (7.5YR 8/3) interior, moist; silty clay loam; moderate coarse prismatic parts to moderate fine and medium structure; firm, noncoherent, slightly sticky, slightly plastic; brittle; tubular pores; 2 percent distinct black (N 2/0), moist, manganese or iron-manganese stains on faces of peds and 75 percent distinct brown (7.5YR 5/3), moist, clay films on faces of peds; 10 percent fine and medium irregular noncoherent cemented pink (7.5YR 8/3) carbonate nodules throughout and 2 percent fine and medium spherical weakly coherent cemented pink (7.5YR 7/4) carbonate concretions throughout; fragments; violent effervescence, by hcl, 1n; diffuse wavy boundary. Lab sample # 94P04769. continuous - phpvsfiid 391729; patchy - phpvsfiid 391730; continuous - phpvsfiid 391729; patchy - phpvsfiid 391730
    Btkb9—650 to 716 centimeters (255.9 to 281.9 inches);, 80 percent reddish yellow (7.5YR 6/6) interior and 20 percent pink (7.5YR 8/3) interior, moist; silty clay loam; weak coarse prismatic parts to weak medium subangular blocky structure; firm, noncoherent, slightly sticky, slightly plastic; brittle; 0.5 fine and medium moderate-continuity tubular pores; 5 percent distinct black (N 2/0), moist, manganese or iron-manganese stains on faces of peds and 15 percent faint reddish yellow (7.5YR 6/6), moist, clay films on faces of peds; 10 percent fine and medium spherical noncoherent cemented pink (7.5YR 8/3) carbonate nodules throughout and 2 percent fine and medium spherical weakly coherent cemented pink (7.5YR 7/4) carbonate concretions throughout; fragments; violent effervescence, by hcl, 1n; diffuse wavy boundary. Lab sample # 94P04770. patchy - phpvsfiid 391731; patchy - phpvsfiid 391732; patchy - phpvsfiid 391731; patchy - phpvsfiid 391732
    Btkb10—716 to 800 centimeters (281.9 to 315.0 inches);, reddish yellow (7.5YR 6/6) interior, moist; silty clay loam; weak coarse prismatic parts to weak medium subangular blocky structure; firm, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 fine and medium high-continuity tubular pores; 1 percent distinct black (N 2/0), moist, manganese or iron-manganese stains on faces of peds and 15 percent distinct reddish yellow (7.5YR 6/6), moist, clay films on faces of peds; 2 percent fine and medium spherical noncoherent cemented pink (7.5YR 8/3) carbonate nodules throughout; fragments; violent effervescence, by hcl, 1n; diffuse wavy boundary. Lab sample # 94P04771. patchy - phpvsfiid 391733; patchy - phpvsfiid 391734; patchy - phpvsfiid 391733; patchy - phpvsfiid 391734
    Btkb11—800 to 851 centimeters (315.0 to 335.0 inches);, 75 percent pink (5YR 7/4) interior and 25 percent yellowish red (5YR 5/8) interior, moist; silty clay loam; weak coarse prismatic parts to weak medium subangular blocky structure; firm, noncoherent, slightly sticky, slightly plastic; brittle; 3.0 fine and medium high-continuity tubular pores; 15 percent distinct reddish brown (5YR 5/4), moist, clay films on faces of peds; 1 percent fine and medium spherical noncoherent cemented pink (7.5YR 7/4) carbonate nodules throughout; fragments; violent effervescence, by hcl, 1n. Lab sample # 94P04772. 317-323" 45% CaCO3 (7.5YR 8/3); rest of layer less CaCO3.; patchy - phpvsfiid 391735; patchy - phpvsfiid 391735