IDENTIFIERS

  • Current Taxon Name (Soil Name): Clarksville
  • OSD
  • Series Extent
  • User Site ID: 1994MO203926M
  • User Pedon ID: 1994MO203926M
  • Transect:
  • Transect Stop Number - 2
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M94E_W02
  • NCSS Pedon Lab Data NASIS Record ID - 31986
  • Print Date: 3/31/2025

    • 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: 37.1336500
  • Std. Longitude: -91.1004000
  • Datum: WGS84
  • State: Missouri
  • County: MO203—Shannon
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO613—Shannon County, Missouri, North & West PartsMO203—Shannon County, Missouri
  • 7.5 Minute USGS Quad: 37091-B1—Exchange, Missouri

    • PEDON

  • Describers Name: DM
  • Current Taxonomic Class: Loamy-skeletal, siliceous, active, 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 - 46 to 86 cm.
  • Classificaton Date - 3/28/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Clarksville
  • Taxonomic Class - Loamy-skeletal, siliceous, semiactive, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 23 to 73 cm.
  • Classificaton Date - 7/13/1994
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 46 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: slope alluvium over residuum
  • Landscape: hills
  • Landform: hillslope
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/13/1994 (actual site observation date)
  • Air Photo ID: 16
  • 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

    3—56

    56—166

    —-

    —-
    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

    44

    —

    —

    268

    —

    230

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments.
    A1—3 to 16 centimeters (1.2 to 6.3 inches); very dark grayish brown (10YR 3/2) extremely gravelly loam; moderate medium granular structure; very friable; 10.0 very fine roots and 1.0 fine roots; 10.0 very fine interstitial pores; 10 percent distinct very dark gray (10YR 3/1), moist, organic stains on upper surfaces of peds or rocks; 10 percent by volume nonflat angular indurated 75-162-250 millimeter chert fragments and 75 percent by volume nonflat angular indurated 2-40-75 millimeter chert fragments; extremely acid, pH 4.2, hellige-truog; clear wavy boundary. Lab sample # MU052175
    A2—16 to 23 centimeters (6.3 to 9.1 inches); brown (10YR 4/3) extremely gravelly loam; moderate fine granular structure; very friable; 3.0 very fine and fine roots and 1.0 medium and coarse roots; 10.0 very fine interstitial pores; 25 percent distinct very dark grayish brown (10YR 3/2), moist, organic stains on faces of peds; 5 percent by volume nonflat angular indurated 75-162-250 millimeter chert fragments and 70 percent by volume nonflat angular indurated 2-40-75 millimeter chert fragments; extremely acid, pH 4.4, hellige-truog; clear smooth boundary. Lab sample # MU052176
    BE1—23 to 36 centimeters (9.1 to 14.2 inches); brown (10YR 5/3) extremely gravelly loam; weak fine subangular blocky structure; very friable; 3.0 medium roots and 2.0 fine roots; 5.0 very fine interstitial and 3.0 fine tubular pores; 1 percent distinct very dark grayish brown (10YR 3/2), moist, organic stains on faces of peds; 1 percent fine spherical iron-manganese concretions; 60 percent by volume nonflat angular indurated 2-40-75 millimeter chert fragments; extremely acid, pH 4.4, hellige-truog; clear smooth boundary. Lab sample # MU052177
    BE21—36 to 46 centimeters (14.2 to 18.1 inches); yellowish brown (10YR 5/4) very gravelly silt loam; weak fine subangular blocky structure; very friable; 2.0 very fine and fine roots and 3.0 medium roots and 1.0 coarse roots; 5.0 very fine interstitial and 1.0 fine tubular pores; 1 percent fine spherical iron-manganese concretions; 15 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments and 20 percent by volume nonflat angular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.5, hellige-truog; clear smooth boundary. Lab sample # MU052178
    BE22—46 to 56 centimeters (18.1 to 22.0 inches); yellowish brown (10YR 5/4) very gravelly silt loam; weak fine subangular blocky structure; very friable; 2.0 very fine and fine roots and 3.0 medium roots and 1.0 coarse roots; 5.0 very fine interstitial and 1.0 fine tubular pores; 15 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments and 20 percent by volume nonflat angular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog. Lab sample # MU052179
    Bt1—56 to 72 centimeters (22.0 to 28.3 inches); yellowish brown (10YR 5/4) very gravelly silt loam; weak fine subangular blocky structure; very friable; 3.0 medium roots and 2.0 fine roots and 1.0 coarse roots; 10.0 very fine interstitial pores; 1 percent distinct strong brown (7.5YR 5/6), moist, clay films on vertical faces of peds and 1 percent faint brown (10YR 5/3), moist, silt coats on vertical faces of peds; 3 percent fine spherical iron-manganese concretions; 25 percent by volume nonflat angular indurated 2-40-75 millimeter chert fragments and 25 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog; clear smooth boundary. Lab sample # MU052180
    2Bt2—72 to 87 centimeters (28.3 to 34.3 inches); yellowish brown (10YR 5/4) very gravelly loam; weak fine subangular blocky structure; friable; 0.1 very fine roots and 1.0 medium roots and 0.1 fine roots; 7.0 very fine interstitial and 2.0 fine tubular pores; 1 percent faint strong brown (7.5YR 5/6), moist, clay films on vertical faces of peds and 4 percent distinct pale brown (10YR 6/3), moist, silt coats on vertical faces of peds; 3 percent fine spherical iron-manganese concretions; 25 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments and 25 percent by volume nonflat angular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary. Lab sample # MU052181. stone line occurs at 43 inches
    2Bt3—87 to 97 centimeters (34.3 to 38.2 inches); strong brown (7.5YR 5/6) gravelly loam; moderate fine and medium subangular blocky structure; friable; 0.1 very fine and fine roots and 1.0 medium roots; 15.0 very fine vesicular pores; 1 percent distinct strong brown (7.5YR 4/6), moist, clay films on all faces of peds and 25 percent distinct light yellowish brown (10YR 6/4), moist, silt coats on all faces of peds; 3 percent fine spherical iron-manganese concretions; 25 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary. Lab sample # MU052182
    2Bt4—97 to 102 centimeters (38.2 to 40.2 inches); 70 percent strong brown (7.5YR 5/6) very gravelly loam; strong medium and coarse subangular blocky structure; friable; 0.1 very fine and fine roots; 2.0 fine interstitial and 9.0 fine tubular pores; 1 percent distinct yellowish red (5YR 5/6), moist, clay films on all faces of peds and 1 percent distinct yellowish brown (10YR 5/4), moist, silt coats in root channels and/or pores; 1 percent fine spherical iron-manganese concretions; 10 percent by volume nonflat subrounded indurated 75-162-250 millimeter chert fragments and 10 percent by volume nonflat angular indurated 2-40-75 millimeter chert fragments and 15 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU052183
    2Bt5—102 to 130 centimeters (40.2 to 51.2 inches); 90 percent yellowish red (5YR 5/8) gravelly clay loam; moderate medium subangular blocky structure; firm; 0.1 very fine and fine roots; 5.0 fine tubular pores; 35 percent distinct red (2.5YR 4/8), moist, clay films on faces of peds and in pores; 3 percent fine spherical iron-manganese concretions; 15 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary. Lab sample # MU052184
    3Bt61—130 to 143 centimeters (51.2 to 56.3 inches); 65 percent yellowish red (5YR 5/8) gravelly clay; moderate coarse subangular blocky parts to weak fine subangular blocky structure; firm; 1.0 medium roots and 0.1 fine roots; 12.0 fine tubular pores; 40 percent prominent red (2.5YR 5/6), moist, clay films on all faces of peds; 10 percent fine spherical iron-manganese concretions; 20 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU052185
    3Bt62—143 to 153 centimeters (56.3 to 60.2 inches); 65 percent yellowish red (5YR 5/8) gravelly clay; fragments; very strongly acid, pH 4.8, hellige-truog. Lab sample # MU052186
    3Bt7—153 to 166 centimeters (60.2 to 65.4 inches); 70 percent yellowish red (5YR 5/8) and 10 percent brownish yellow (10YR 6/8) very gravelly clay; moderate medium subangular blocky parts to moderate very fine and fine angular blocky structure; firm; 0.1 fine roots; 4.0 fine tubular pores; 35 percent prominent red (2.5YR 5/8), moist, clay films on all faces of peds; 20 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments and 25 percent by volume nonflat angular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog. Lab sample # MU052187. possible coarse prismatic structure parting to others fine gravel concentrations occur in pockets