IDENTIFIERS

  • Current Taxon Name (Soil Name): Tunica
  • OSD
  • Series Extent
  • User Site ID: 1991MO155001
  • User Pedon ID: 1991MO155001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9115501
  • NCSS Pedon Lab Data NASIS Record ID - 30824
  • Print Date: 11/11/2024

    • 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: 36.2203598
  • Std. Longitude: -89.7180862
  • Datum: WGS84
  • Map Unit: 86033—Hayti silty clay loam, 0 to 1 percent slopes, rarely flooded
  • State: Missouri
  • County: MO155—Pemiscot
  • MLRA: 131—Southern Mississippi Valley Alluvium
  • Regional Office: 7—Auburn, AL
  • Non-MLRA Soil Survey Area: MO155—Pemiscot County, Missouri
  • 7.5 Minute USGS Quad: 36089-B6—Caruthersville, Missouri

    • PEDON

  • Describers Name: B.L. Brown, M.L. Chalfant
  • Current Taxonomic Class: Clayey over loamy, smectitic over mixed, superactive, calcareous, thermic Vertic Epiaquepts
  • Current Taxon Kind: taxadjunct
  • Pedon Type: map unit inclusion
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Tunica
  • PSC - 25 to 100 cm.
  • Classificaton Date - 3/7/2011
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - aquic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Tunica
  • Classificaton Date - 8/21/1991
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: clayey alluvium and/or loamy alluvium
  • Landscape: river valley
  • Landform: depression
  • Drainage Class: poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/21/1991 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • 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

    ochric epipedon

    cambic horizon

    strongly contrasting particle size class

    0—23

    23—66

    66—66

    —-

    —-

    —-
    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

    —

    —

    79.2

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); very dark grayish brown (10YR 3/2), gray (10YR 5/1), dry; silty clay; weak fine granular structure; very hard, firm; 0.5 fine roots; fragments; very slight effervescence; neutral, pH 7.2, pH meter; abrupt wavy boundary. Lab sample # MU042704
    Bg1—23 to 48 centimeters (9.1 to 18.9 inches); dark gray (5Y 4/1), grayish brown (2.5Y 5/2), dry; silty clay; moderate fine subangular blocky structure; hard, firm; 0.5 very fine roots; 0.5 very fine pores; 55 percent prominent pressure faces; 5 percent fine iron-manganese masses and 5 percent fine and medium prominent dark reddish brown (5YR 3/4) masses of oxidized iron; fragments; very slight effervescence; neutral, pH 7.3, pH meter; clear wavy boundary. Lab sample # MU042705
    Bg2—48 to 66 centimeters (18.9 to 26.0 inches); dark gray (10YR 4/1), grayish brown (2.5Y 5/2), dry; silty clay; weak fine subangular blocky structure; hard, friable; 0.5 very fine roots; 3.0 very fine pores; 5 percent medium prominent dark brown (7.5YR 3/4) masses of oxidized iron and 5 percent fine iron-manganese masses; fragments; very slight effervescence; neutral, pH 7.2, pH meter; abrupt smooth boundary. Lab sample # MU042706
    2C—66 to 84 centimeters (26.0 to 33.1 inches); gray (10YR 5/1) and dark yellowish brown (10YR 4/4), brownish yellow (10YR 6/6) and gray (10YR 6/1), dry; silt loam; weak fine subangular blocky structure; hard, friable; 1 percent medium prominent strong brown (7.5YR 4/6) masses of oxidized iron and 1 percent fine iron-manganese masses; fragments; very slight effervescence; slightly alkaline, pH 7.6, pH meter; abrupt smooth boundary. Lab sample # MU042707
    3Cg1—84 to 114 centimeters (33.1 to 44.9 inches); dark gray (10YR 4/1), gray (10YR 5/1), dry; silty clay; weak medium prismatic parts to weak fine subangular blocky structure; hard, friable; 0.5 very fine roots; 3.0 very fine pores; 2 percent organic stains and 55 percent prominent pressure faces; 1 percent medium prominent dark brown (7.5YR 3/4) masses of oxidized iron; fragments; very slight effervescence; neutral, pH 7.2, pH meter; clear wavy boundary. Lab sample # MU042708
    3Cg2—114 to 145 centimeters (44.9 to 57.1 inches); grayish brown (2.5Y 5/2) and dark gray (10YR 4/1), light brownish gray (2.5Y 6/2), dry; silty clay loam; weak medium prismatic parts to weak fine subangular blocky structure; hard, firm; 0.5 very fine roots; 3.0 very fine pores; 1 percent fine prominent strong brown (7.5YR 4/6) masses of oxidized iron and 1 percent fine prominent dark red (2.5YR 3/6) masses of oxidized iron and 5 percent fine prominent strong brown (7.5YR 5/8) masses of oxidized iron; fragments; very slight effervescence; slightly alkaline, pH 7.4, pH meter; clear smooth boundary. Lab sample # MU042709
    3Cg3—145 to 173 centimeters (57.1 to 68.1 inches); dark gray (10YR 4/1), grayish brown (2.5Y 5/2), dry; silty clay; weak medium and coarse angular blocky structure; hard, firm; 3.0 very fine pores; 1 percent medium prominent dark red (2.5YR 3/6) masses of oxidized iron and 5 percent medium prominent strong brown (7.5YR 5/8) masses of oxidized iron and 5 percent medium prominent brown (7.5YR 4/4) masses of oxidized iron; fragments; very slight effervescence; slightly alkaline, pH 7.5, pH meter. Lab sample # MU042710