IDENTIFIERS

  • Current Taxon Name (Soil Name): Tonti
  • OSD
  • Series Extent
  • User Site ID: 1993MO161024M
  • User Pedon ID: 1993MO161024
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9316124
  • Print Date: 5/30/2024

    • 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: 37.7619444
  • Std. Longitude: -91.9980556
  • Datum: WGS84
  • Map Unit: 73166—Viburnum-Tonti complex, 1 to 8 percent slopes
  • State: Missouri
  • County: MO161—Phelps
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO161—Phelps County, Missouri

    • PEDON

  • Describers Name: SEL, GB, RR
  • Current Taxonomic Class: Fine-loamy, mixed, active, mesic Typic Fragiudults
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Tonti
  • PSC - 23 to 58 cm.
  • Classificaton Date - 1/31/2012
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Tonti
  • Taxon Kind - series
  • Classificaton Date - 8/2/1993
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess derived from mixed and/or residuum weathered from sandstone
  • Landscape: hills
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: moderately well
  • Geology: Roubidoux formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/2/1993 (actual site observation date)
  • Air Photo ID: B-7
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    fragipan

    —

    58 - 112

    —
    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

    6

    —

    —

    334

    —

    20

    —

    —

    —

    —

    —

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    —

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    Oi—0 to 1 centimeters (0.0 to 0.4 inches); slightly decomposed plant material; fragments; abrupt smooth boundary. Lab sample # MU64394; observed in trench
    A—1 to 8 centimeters (0.4 to 3.1 inches); brown (10YR 5/3), very pale brown (10YR 7/3), dry; silt loam; weak fine subangular blocky parts to weak medium granular structure; friable; 5.0 very fine to medium roots; 2 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.5, hellige-truog; clear wavy boundary. Lab sample # MU048684; observed in trench
    BE—8 to 23 centimeters (3.1 to 9.1 inches); yellowish brown (10YR 5/4) and yellowish brown (10YR 5/6) silt loam; weak and moderate fine and medium subangular blocky structure; friable; 5.0 very fine to medium roots; grayish brown (10YR 5/2), moist, silt coats; 2 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; extremely acid, pH 4.4, hellige-truog; clear wavy boundary. Lab sample # MU048685; observed in trench
    Bt1—23 to 33 centimeters (9.1 to 13.0 inches); brown (7.5YR 4/4) and strong brown (7.5YR 5/6) silty clay loam; moderate fine and medium subangular blocky structure; friable; 5.0 very fine and fine roots and 3.0 medium roots; 35 percent faint clay films on faces of peds; 2 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog; clear wavy boundary. Lab sample # MU048686; observed in trench
    Bt2—33 to 51 centimeters (13.0 to 20.1 inches); brown (7.5YR 4/4) and yellowish brown (10YR 5/4) silty clay loam; moderate medium and coarse subangular blocky structure; firm; 5.0 very fine and fine roots and 3.0 medium roots and 0.5 coarse roots; 35 percent distinct clay films on faces of peds; 5 percent by volume 2-39-75 millimeter sandstone, unspecified fragments and 5 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.6, hellige-truog; clear wavy boundary. Lab sample # MU048687; observed in trench
    Bt3—51 to 58 centimeters (20.1 to 22.8 inches); yellowish brown (10YR 5/4) gravelly silty clay loam; strong medium subangular blocky structure; firm; 5.0 fine and medium roots and 0.5 coarse roots; light brownish gray (10YR 6/2), moist, silt coats and 60 percent prominent clay films on faces of peds; fine noncoherent cemented light brownish gray (10YR 6/2), moist, clay depletions on horizontal faces of peds; 5 percent by volume 2-39-75 millimeter sandstone, unspecified fragments and 5 percent by volume 75-162-250 millimeter sandstone, unspecified fragments and 20 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.6, hellige-truog; abrupt wavy boundary. Lab sample # MU048688; observed in trench
    2Btx1—58 to 91 centimeters (22.8 to 35.8 inches); strong brown (7.5YR 4/6) extremely gravelly silt loam; brownish yellow (10YR 6/8) medium prominent mottles; moderate very coarse prismatic structure; very firm; 35 percent distinct clay films on faces of peds; 20 percent coarse irregular brownish yellow (10YR 6/8), moist, masses of oxidized iron throughout and 20 percent coarse irregular gray (7.5YR 6/1), moist, masses of reduced iron throughout; 5 percent by volume 2-39-75 millimeter sandstone, unspecified fragments and 5 percent by volume 75-162-250 millimeter sandstone, unspecified fragments and 5 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 55 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.5, hellige-truog; clear wavy boundary. Lab sample # MU048689; observed in trench. Gray seams are 3/8 inch wide. Prizms are 7 inches across. Gray seams are 7.5YR 6/1 and 10YR 5/2.; few medium roots in gray seams; Horizon is 95% brittle.
    2Btx2—91 to 112 centimeters (35.8 to 44.1 inches); strong brown (7.5YR 4/6) extremely cobbly silt loam; 10 percent brown (10YR 5/3) fine and medium distinct mottles; moderate very coarse prismatic structure; very firm; 15 percent distinct brown (10YR 5/3), moist, clay films on faces of peds; 20 percent coarse gray (5YR 6/1), moist, masses of reduced iron throughout; 10 percent by volume 2-39-75 millimeter sandstone, unspecified fragments and 25 percent by volume nonflat indurated 2-40-75 millimeter chert fragments and 50 percent by volume nonflat indurated 75-162-250 millimeter chert fragments; very strongly acid, pH 4.5, hellige-truog; clear wavy boundary. Lab sample # MU048690; observed in trench. Gray seams are 3/8 inch wide. Prizms are 7 inches across. Gray seams are 5YR 6/1 and 10YR 5/2.; Horizon is 95% brittle.; few very fine roots in gray seams
    3Bt4—112 to 155 centimeters (44.1 to 61.0 inches); red (2.5YR 4/8) and red (2.5YR 4/6) very gravelly clay; moderate very coarse prismatic parts to moderate medium subangular blocky structure; firm; 0.5 very fine roots in cracks; 60 percent distinct clay films on faces of peds; 5 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 10 percent by volume 2-39-75 millimeter sandstone, unspecified fragments and 40 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog; abrupt wavy boundary. Lab sample # MU048691; observed in trench. Vertical gray seams 7.5YR4/1 & 10YR5/1.
    3R—155 centimeters (61.0 inches); bedrock; 0.5 medium roots; fragments.; observed in trench. Fractured silicified sandstone bedrock.