IDENTIFIERS

  • Current Taxon Name (Soil Name): Clarksville
  • OSD
  • Series Extent
  • User Site ID: 1996MO179032M
  • User Pedon ID: 1996MO179032M
  • User Site Association ID: 8639
  • Transect:
  • User Transect ID - reynolds-80D2
  • Transect Stop Number - 5
  • Transect Interval - 200.0
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9617932
  • NCSS Pedon Lab Data NASIS Record ID - 31703
  • Print Date: 1/29/2025

    • 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: 37.4733806
  • Std. Longitude: -90.9435000
  • Datum: WGS84
  • Map Unit: 80D—Poynor-Clarksville-Scholten complex, 8 to 15 percent slopes, stony73139—Poynor-Clarksville-Scholten complex, 8 to 15 percent slopes, stony
  • State: Missouri
  • County: MO179—Reynolds
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO179—Reynolds County, Missouri
  • 7.5 Minute USGS Quad: 37090-D8—Centerville, Missouri

    • PEDON

  • Describers Name: LT & BM
  • Current Taxonomic Class: Clayey-skeletal, siliceous, semiactive, mesic Typic Paleudults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: within range of map unit
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Clarksville
  • PSC - 20 to 70 cm.
  • Classificaton Date - 3/8/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Noark
  • Taxonomic Class - Clayey-skeletal, mixed, semiactive, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 20 to 70 cm.
  • Classificaton Date - 6/24/1996
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 42 percent of Percent clay in the control section and 34 Percent rock fragments in the control section (vol) and 16 Strongly contrasting textural stratification (depth in inches) and 16 Strongly contrasting textural stratification (depth in inches) and 28 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: slope alluvium derived from dolomite
  • Landscape: hills
  • Landform: hill
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: shoulder
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: dolomite (dolostone)
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/24/1996 (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

    ochric epipedon

    argillic horizon

    0—8

    20—170

    —-

    —-
    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

    —

    —

    354

    —

    130

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 8 centimeters (0.0 to 3.1 inches); dark grayish brown (10YR 4/2) very gravelly silt loam; weak fine granular structure; friable; 7.0 fine and medium roots; 7.0 fine interstitial and tubular pores; 45 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.6, hellige-truog; clear smooth boundary. Lab sample # MU056505
    E—8 to 20 centimeters (3.1 to 7.9 inches); light yellowish brown (10YR 6/4) gravelly silt loam; weak fine subangular blocky structure; friable; 7.0 fine and medium roots and 3.0 coarse roots; 7.0 fine and medium tubular and 3.0 coarse tubular pores; 30 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; clear smooth boundary. Lab sample # MU056506
    Bt1—20 to 41 centimeters (7.9 to 16.1 inches); light yellowish brown (10YR 6/4) very gravelly silt loam; weak fine subangular blocky structure; friable; 3.0 fine to coarse roots; 7.0 fine to coarse tubular pores; 35 percent distinct yellowish brown (10YR 5/4), moist, clay films on rock fragments and 75 percent distinct very pale brown (10YR 7/4), moist, silt coats on rock fragments; 45 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # MU056507
    Bt2—41 to 58 centimeters (16.1 to 22.8 inches); strong brown (7.5YR 5/6) gravelly silty clay loam; weak fine subangular blocky structure; friable; 3.0 fine and medium roots and 0.9 coarse roots; 7.0 fine and medium tubular and 0.9 coarse tubular pores; 15 percent distinct yellowish brown (10YR 5/4), moist, clay films on faces of peds and 35 percent prominent red (2.5YR 4/6), moist, clay films on rock fragments and 35 percent distinct very pale brown (10YR 7/3), moist, silt coats on faces of peds; 30 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU056508
    Bt3—58 to 84 centimeters (22.8 to 33.1 inches); strong brown (7.5YR 5/6) gravelly silty clay loam; weak fine subangular blocky structure; firm; 0.9 fine to coarse roots; 7.0 fine and medium tubular and 3.0 coarse tubular pores; 15 percent prominent red (2.5YR 4/6), moist, clay films on faces of peds and 35 percent distinct reddish yellow (7.5YR 6/6), moist, silt coats on faces of peds and 35 percent distinct brown (10YR 5/3), moist, clay films on faces of peds; 30 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # MU056509
    2Bt4—84 to 107 centimeters (33.1 to 42.1 inches); reddish brown (2.5YR 4/4) very gravelly clay; weak fine subangular blocky structure; firm; 0.9 fine and medium roots; 3.0 fine to coarse tubular pores; 15 percent distinct strong brown (7.5YR 5/6), moist, clay films on faces of peds and 15 percent distinct pinkish white (7.5YR 8/2), moist, silt coats on faces of peds and 35 percent distinct brown (7.5YR 4/4), moist, clay films on faces of peds; 40 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; clear wavy boundary. Lab sample # MU056510
    2Bt5—107 to 132 centimeters (42.1 to 52.0 inches); 50 percent brownish yellow (10YR 6/8) and 50 percent dark reddish brown (2.5YR 3/4) very gravelly clay; weak fine subangular blocky structure; firm; 0.9 fine roots; 3.0 fine to coarse tubular pores; 15 percent distinct white (10YR 8/1), moist, silt coats on faces of peds and 35 percent distinct brown (10YR 4/3), moist, clay films on faces of peds and 35 percent distinct brown (7.5YR 4/4), moist, clay films on rock fragments; 55 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU056511
    2Bt6—132 to 150 centimeters (52.0 to 59.1 inches); dark reddish brown (2.5YR 3/4) clay; 10 percent brownish yellow (10YR 6/8) fine prominent mottles; moderate fine subangular blocky structure; firm; 0.9 fine roots; 3.0 fine and medium tubular pores; 15 percent distinct gray (10YR 6/1), moist, clay films on faces of peds and 35 percent distinct brown (7.5YR 5/2), moist, clay films on faces of peds and 35 percent distinct brown (10YR 5/3), moist, clay films on faces of peds; 10 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog; clear smooth boundary. Lab sample # MU056512
    2Bt7—150 to 170 centimeters (59.1 to 66.9 inches); 50 percent dark reddish brown (2.5YR 3/4) and 50 percent brownish yellow (10YR 6/6) extremely gravelly sandy clay; weak fine subangular blocky structure; firm; 0.9 fine roots; 3.0 fine and medium tubular pores; 15 percent distinct very dark grayish brown (10YR 3/2), moist, manganese or iron-manganese stains on rock fragments and 35 percent distinct brown (10YR 5/3), moist, clay films on rock fragments and 35 percent distinct dark grayish brown (10YR 4/2), moist, clay films on rock fragments and 75 percent faint dark reddish brown (2.5YR 3/4), moist, clay films on rock fragments; 15 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 60 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU056513