IDENTIFIERS

  • Current Taxon Name (Soil Name): Clarksville
  • OSD
  • Series Extent
  • User Site ID: 1994MO203913M
  • User Pedon ID: 1994MO203913M
  • Transect:
  • Transect Stop Number - 3
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M94C_W03
  • NCSS Pedon Lab Data NASIS Record ID - 32037
  • 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: 37.1750222
  • Std. Longitude: -91.1387417
  • 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-B2—Powder Mill Ferry, Missouri

    • PEDON

  • Describers Name: DM, DH
  • Current Taxonomic Class: Loamy-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 - 36 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 - 36 to 86 cm.
  • Classificaton Date - 7/28/1994
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 37 Cation exchange capacity to clay ratio


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/28/1994 (actual site observation date)
  • Air Photo ID: 15
  • 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—36

    36—171

    —-

    —-
    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

    —

    —

    —

    274

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments.
    A—3 to 8 centimeters (1.2 to 3.1 inches); 60 percent dark grayish brown (10YR 4/2) and 40 percent brown (10YR 4/3) extremely gravelly silt loam; moderate fine granular structure; very friable; 8.0 medium roots and 20.0 fine roots; 5.0 medium tubular and 20.0 fine interstitial pores; 20 percent by volume subangular 75-162-250 millimeter limestone-sandstone fragments and 60 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; extremely acid, pH 4.4, hellige-truog; clear wavy boundary. Lab sample # MU052018
    E1—8 to 21 centimeters (3.1 to 8.3 inches); pale brown (10YR 6/3) extremely gravelly silt loam; weak very fine subangular blocky structure; friable; 5.0 medium roots and 10.0 fine roots; 8.0 medium tubular and 20.0 fine tubular pores; 12 percent distinct dark grayish brown (10YR 4/2), moist, organic stains in root channels and/or pores; 20 percent by volume subangular 75-162-250 millimeter limestone-sandstone fragments and 40 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; very strongly acid, pH 4.6, hellige-truog; clear wavy boundary. Lab sample # MU052019
    E2—21 to 36 centimeters (8.3 to 14.2 inches); light yellowish brown (10YR 6/4) extremely gravelly silt loam; weak very fine subangular blocky structure; friable; 5.0 medium roots and 10.0 fine roots and 2.0 coarse roots; 5.0 fine tubular and 1.0 coarse tubular pores; 12 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on faces of peds and 75 percent faint pale brown (10YR 6/3), moist, silt coats on faces of peds; 20 percent by volume subangular 75-162-250 millimeter limestone-sandstone fragments and 40 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; very strongly acid, pH 4.7, hellige-truog; gradual wavy boundary. Lab sample # MU052020
    Bt1—36 to 54 centimeters (14.2 to 21.3 inches); yellowish brown (10YR 5/4) very gravelly silt loam; moderate very fine and fine subangular blocky structure; friable; 5.0 medium roots and 5.0 fine roots and 1.0 coarse roots; 5.0 fine tubular and 1.0 coarse tubular pores; 30 percent faint dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds and 30 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds; 40 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog; gradual wavy boundary. Lab sample # MU052021
    Bt2—54 to 69 centimeters (21.3 to 27.2 inches); strong brown (7.5YR 5/6) extremely gravelly silt loam; moderate medium subangular blocky parts to weak very fine and fine subangular blocky structure; friable; 1.0 medium roots and 5.0 fine roots and 1.0 coarse roots; 1.0 medium tubular and 10.0 fine tubular and 1.0 coarse interstitial pores; 12 percent prominent yellowish red (5YR 4/6), moist, clay films on rock fragments and 12 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on rock fragments and 35 percent distinct strong brown (7.5YR 4/6), moist, clay films on all faces of peds and 35 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds; 1 percent fine spherical iron-manganese concretions throughout; 60 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU052022
    Bt31—69 to 82 centimeters (27.2 to 32.3 inches); strong brown (7.5YR 5/6) extremely gravelly loam; weak fine subangular blocky structure; friable; 1.0 medium roots and 0.5 fine roots and 1.0 coarse roots; 4.0 medium tubular and 15.0 fine tubular and 1.0 coarse tubular pores; 12 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on rock fragments and 35 percent distinct strong brown (7.5YR 4/6), moist, clay films on all faces of peds and 35 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds; 1 percent fine spherical iron-manganese concretions throughout; 60 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 # MU052023
    Bt32—82 to 97 centimeters (32.3 to 38.2 inches); strong brown (7.5YR 5/6) extremely gravelly loam; weak fine subangular blocky structure; friable; 1.0 medium roots and 0.5 fine roots and 1.0 coarse roots; 4.0 medium tubular and 15.0 fine tubular and 1.0 coarse tubular pores; 12 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on rock fragments and 35 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds and 35 percent distinct strong brown (7.5YR 4/6), moist, clay films on all faces of peds; 60 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog. Lab sample # MU052024
    Bt4—97 to 115 centimeters (38.2 to 45.3 inches); strong brown (7.5YR 5/6) extremely gravelly loam; weak fine subangular blocky structure; friable; 1.0 medium roots and 0.5 fine roots and 1.0 coarse roots; 4.0 medium tubular and 15.0 fine tubular and 1.0 coarse tubular pores; 12 percent prominent yellowish red (5YR 4/6), moist, clay films on rock fragments and 12 percent faint pale brown (10YR 6/3), moist, silt coats on rock fragments and 12 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on rock fragments and 35 percent distinct strong brown (7.5YR 4/6), moist, clay films on all faces of peds; 1 percent fine spherical iron-manganese concretions throughout; 65 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 # MU052025
    Bt51—115 to 127 centimeters (45.3 to 50.0 inches); strong brown (7.5YR 5/6) extremely gravelly silt loam; weak fine subangular blocky structure; firm; 0.5 fine roots; 5.0 fine tubular pores; 12 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on all faces of peds and 35 percent distinct yellowish red (5YR 4/6), moist, clay films in root channels and/or pores and 75 percent distinct strong brown (7.5YR 4/6), moist, clay films on all faces of peds; 1 percent fine spherical iron-manganese concretions throughout; 80 percent by volume nonflat angular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 5.0, hellige-truog; abrupt wavy boundary. Lab sample # MU052026
    Bt52—127 to 140 centimeters (50.0 to 55.1 inches); strong brown (7.5YR 5/6) extremely gravelly silt loam; weak fine subangular blocky structure; firm; 0.5 fine roots; 5.0 fine tubular pores; 12 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on all faces of peds and 35 percent distinct yellowish red (5YR 4/6), moist, clay films in root channels and/or pores and 75 percent distinct strong brown (7.5YR 4/6), moist, clay films on all faces of peds; 80 percent by volume nonflat angular indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.1, hellige-truog. Lab sample # MU052027
    Bt61—140 to 155 centimeters (55.1 to 61.0 inches); yellowish red (5YR 5/6) extremely gravelly loam; weak fine subangular blocky structure; very firm, strongly cemented; 3.0 medium tubular and 2.0 fine tubular and 1.0 coarse interstitial and 1.0 coarse tubular pores; 12 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on faces of peds and 35 percent prominent red (2.5YR 4/6), moist, clay films in root channels and/or pores and 75 percent prominent yellowish red (5YR 4/6), moist, clay films on all faces of peds and 75 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds; 1 percent fine spherical iron-manganese concretions throughout; 50 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 5.0, hellige-truog. Lab sample # MU052028
    Bt62—155 to 171 centimeters (61.0 to 67.3 inches); yellowish red (5YR 5/6) extremely gravelly clay loam; weak fine subangular blocky structure; very firm; 3.0 medium tubular and 2.0 fine tubular and 1.0 coarse interstitial and 1.0 coarse tubular pores; 12 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on faces of peds and 35 percent prominent red (2.5YR 4/6), moist, clay films in root channels and/or pores and 75 percent prominent yellowish red (5YR 4/6), moist, clay films on all faces of peds and 75 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds; 50 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog. Lab sample # MU052029