IDENTIFIERS

  • Current Taxon Name (Soil Name): Tonti
  • OSD
  • Series Extent
  • User Site ID: 2001MO179015M
  • User Pedon ID: 2001MO179015M
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M0117915
  • NCSS Pedon Lab Data NASIS Record ID - 30950
  • Print Date: 12/5/2025

    • 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: 37.1988194
  • Std. Longitude: -90.9856278
  • Datum: WGS84
  • Map Unit: 75428—Tilk, occasionally flooded-Cornwall-Poynor complex, 0 to 15 percent slopes
  • State: Missouri
  • County: MO179—Reynolds
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO179—Reynolds County, Missouri
  • 7.5 Minute USGS Quad: 37090-B8—Ellington, Missouri

    • PEDON

  • Describers Name: MM, LT
  • Current Taxonomic Class: Fine-loamy, mixed, active, mesic Typic Fragiudults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: map unit inclusion
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Tonti
  • PSC - 20 to 69 cm.
  • Classificaton Date - 3/28/2011
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Yelton
  • Taxonomic Class - Fine-loamy, siliceous, active, mesic Typic Fragiudults
  • Taxon Kind - series
  • PSC - 20 to 69 cm.
  • Classificaton Date - 8/15/2001
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 3


    • SITE

  • Parent Material: pedisediment and/or slope alluvium
  • Landscape: hills
  • Geomorphic Component Hills: head slope
  • Hill Slope Profile: footslope
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/15/2001 (actual site observation date)
  • 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

    noncoherent

    69 - 152

    —
    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    fragipan

    5—20

    20—152

    69—152

    —-

    —-

    —-
    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

    9

    —

    —

    259

    —

    158

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    —

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    —
    Oi—0 to 5 centimeters (0.0 to 2.0 inches); slightly decomposed plant material; fragments. Lab sample # MU64739
    A—5 to 20 centimeters (2.0 to 7.9 inches); dark grayish brown (10YR 4/2) silt loam; weak fine granular structure; friable; 7.0 fine and medium roots and 7.0 coarse roots; 7.0 fine irregular pores; 10 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; very strongly acid, pH 4.6, pH meter; clear smooth boundary. Lab sample # MU022841
    Bt1—20 to 36 centimeters (7.9 to 14.2 inches); yellowish brown (10YR 5/4) silt loam; weak fine subangular blocky structure; firm; 3.0 fine and medium roots and 0.1 coarse roots; 3.0 fine and medium tubular pores; 15 percent distinct dark yellowish brown (10YR 4/4) clay films; 10 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; very strongly acid, pH 4.5, pH meter; clear wavy boundary. Lab sample # MU022842
    Bt2—36 to 56 centimeters (14.2 to 22.0 inches); brown (7.5YR 4/4) gravelly silty clay loam; moderate fine subangular blocky structure; firm; 3.0 fine and medium roots and 0.1 coarse roots; 3.0 fine tubular pores; 35 percent distinct brown (7.5YR 4/3) clay films; 5 percent by volume nonflat indurated 2-?-75 millimeter chert fragments and 15 percent by volume 2-?-75 millimeter sandstone, unspecified fragments; very strongly acid, pH 4.5, pH meter; clear smooth boundary. Lab sample # MU022843
    Bt3—56 to 69 centimeters (22.0 to 27.2 inches); yellowish brown (10YR 5/6) gravelly silty clay loam; moderate medium subangular blocky structure; firm; 3.0 fine and medium roots; 3.0 fine tubular pores; 35 percent distinct dark yellowish brown (10YR 4/4) clay films; 20 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; extremely acid, pH 4.4, pH meter; abrupt smooth boundary. Lab sample # MU022844
    2Btx1—69 to 114 centimeters (27.2 to 44.9 inches); 50 percent light yellowish brown (10YR 6/4) and 50 percent yellowish brown (10YR 5/4) silt loam; strong coarse prismatic parts to strong thick platy structure; very firm; brittle; 0.9 very fine roots; 0.9 fine interstitial pores; 35 percent distinct pale brown (10YR 6/3) silt coats and 35 percent distinct grayish brown (10YR 5/2) clay films; 5 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; 65 percent of brittleness; very strongly acid, pH 4.5, pH meter; clear wavy boundary. Lab sample # MU022845
    2Btx2—114 to 152 centimeters (44.9 to 59.8 inches); 50 percent yellowish brown (10YR 5/4) and 50 percent yellowish red (5YR 4/6) extremely gravelly loam; strong coarse prismatic parts to moderate medium angular blocky structure; very firm; brittle; 3.0 fine vesicular pores; 35 percent distinct pale brown (10YR 6/3) silt coats and 35 percent distinct grayish brown (10YR 5/2) clay films; 20 percent by volume 75-?-250 millimeter sandstone, unspecified fragments and 55 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; 60 percent of brittleness; extremely acid, pH 4.4, pH meter. Lab sample # MU022846