IDENTIFIERS

  • Current Taxon Name (Soil Name): Coulstone
  • OSD
  • Series Extent
  • User Site ID: 1994MO203915M
  • User Pedon ID: 1994MO203915M
  • Transect:
  • Transect Stop Number - 5
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M94C_W05
  • NCSS Pedon Lab Data NASIS Record ID - 31997
  • 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: FH, DM
  • 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 - Coulstone
  • PSC - 39 to 89 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 - 39 to 89 cm.
  • Classificaton Date - 7/26/1994
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 27 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: concave
  • Slope Shape Down: convex
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/26/1994 (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—39

    39—163

    —-

    —-
    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

    39

    —

    —

    274

    —

    204

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments.
    A—3 to 11 centimeters (1.2 to 4.3 inches); brown (10YR 5/3) extremely gravelly silt loam; strong fine granular structure; very friable; 15.0 medium roots and 30.0 fine roots and 1.0 coarse roots; 30.0 fine interstitial pores; 5 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 85 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 # MU052042
    E—11 to 26 centimeters (4.3 to 10.2 inches); very pale brown (10YR 7/3) extremely gravelly silt loam; weak fine subangular blocky structure; very friable; 7.0 medium roots and 15.0 fine roots and 2.0 coarse roots; 12.0 fine tubular and 1.0 coarse tubular pores; 12 percent distinct brown (10YR 5/3), moist, organic stains in root channels and/or pores; 60 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 # MU052043
    EB—26 to 39 centimeters (10.2 to 15.4 inches); 75 percent very pale brown (10YR 7/3) and 10 percent light yellowish brown (10YR 6/4) and 10 percent brownish yellow (10YR 6/6) extremely gravelly silt loam; weak fine subangular blocky structure; very friable; 5.0 medium roots and 5.0 fine roots and 1.0 coarse roots; 2.0 medium tubular and 1.0 fine interstitial and 8.0 fine tubular pores; 12 percent distinct brown (10YR 5/3), moist, organic stains in root channels and/or pores; 5 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 4.9, hellige-truog; clear wavy boundary. Lab sample # MU052044
    Bt1—39 to 54 centimeters (15.4 to 21.3 inches); strong brown (7.5YR 5/6) extremely gravelly silt loam; weak very fine and fine subangular blocky structure; friable; 2.0 medium roots and 2.0 fine roots and 1.0 coarse roots; 20.0 medium tubular and 10.0 fine tubular and 1.0 coarse tubular pores; 35 percent distinct brown (7.5YR 4/4), 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; 60 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.2, hellige-truog; clear smooth boundary. Lab sample # MU052045
    2Bt2—54 to 69 centimeters (21.3 to 27.2 inches); strong brown (7.5YR 5/6) extremely gravelly loam; moderate very fine and fine subangular blocky structure; friable; 0.5 medium roots and 0.1 fine roots; 10.0 medium tubular and 5.0 fine tubular pores; 12 percent prominent light gray (10YR 7/1), moist, silt coats on vertical faces of peds and 12 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on rock fragments and 35 percent distinct yellowish red (5YR 4/6), moist, clay films on all faces of peds; 70 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.2, hellige-truog; clear wavy boundary. Lab sample # MU052046
    2Bt3—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; 1.0 medium tubular and 5.0 fine tubular and 6.0 coarse tubular pores; 12 percent faint black (10YR 2/1), moist, manganese or iron-manganese stains on vertical faces of peds and 35 percent distinct reddish brown (5YR 4/4), moist, clay films on rock fragments; 60 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.2, hellige-truog; clear wavy boundary. Lab sample # MU052047
    2Bt4—82 to 97 centimeters (32.3 to 38.2 inches); red (2.5YR 4/6) extremely gravelly sandy clay loam; moderate fine and medium subangular blocky structure; firm; 1.0 medium roots and 0.1 fine roots; 3.0 fine tubular and 5.0 coarse tubular pores; 35 percent distinct brownish yellow (10YR 6/6), moist, clay films on rock fragments and 75 percent distinct strong brown (7.5YR 4/6), moist, clay films on all faces of peds and 75 percent distinct dark red (2.5YR 3/6), moist, clay films on all faces of peds; 65 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.2, hellige-truog; gradual wavy boundary. Lab sample # MU052048
    2Bt51—97 to 110 centimeters (38.2 to 43.3 inches); red (2.5YR 4/6) extremely gravelly sandy clay loam; 1 percent brownish yellow (10YR 6/6) fine prominent mottles; moderate fine and medium subangular blocky structure; friable; 1.0 medium roots and 0.5 fine roots; 10.0 fine tubular and 5.0 coarse tubular pores; 12 percent distinct very pale brown (10YR 7/4), moist, clay films on faces of peds and 75 percent distinct strong brown (7.5YR 4/6), moist, clay films on rock fragments and 75 percent distinct yellowish red (5YR 4/6), moist, clay films on rock fragments; 65 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.2, hellige-truog; gradual wavy boundary. Lab sample # MU052049
    2Bt52—110 to 122 centimeters (43.3 to 48.0 inches); red (2.5YR 4/6) extremely gravelly sandy clay loam; moderate fine and medium subangular blocky structure; friable; 1.0 medium roots and 0.5 fine roots; 10.0 fine tubular and 5.0 coarse tubular pores; 12 percent distinct 10YR (10YR) clay films on faces of peds and 75 percent distinct 7.5YR (7.5YR) clay films on rock fragments and 75 percent distinct 5YR (5YR) clay films on rock fragments; 65 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.2, hellige-truog. Lab sample # MU052050
    2Bt6—122 to 135 centimeters (48.0 to 53.1 inches); 50 percent strong brown (7.5YR 5/6) and 50 percent yellowish red (5YR 5/6) very gravelly clay loam; 1 percent light gray (10YR 7/2) fine prominent mottles; moderate very fine and fine subangular blocky structure; friable; 3.0 medium roots and 1.0 fine roots; 3.0 fine tubular and 8.0 coarse tubular pores; 75 percent distinct red (2.5YR 4/6), moist, clay films in root channels and/or pores; 5 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 40 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.1, hellige-truog; gradual wavy boundary. Lab sample # MU052051
    3Bt7—135 to 148 centimeters (53.1 to 58.3 inches); yellowish red (5YR 5/6) very gravelly clay; 1 percent light gray (10YR 7/1) fine prominent and 1 percent brownish yellow (10YR 6/6) fine prominent mottles; moderate medium subangular blocky parts to weak very fine angular blocky structure; very firm; 1.0 medium roots and 0.1 fine roots; 1.0 medium tubular and 0.1 fine tubular pores; 75 percent distinct red (2.5YR 4/6), moist, clay films on all faces of peds and 75 percent distinct yellowish red (5YR 5/6), moist, clay films on all faces of peds; 50 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.1, hellige-truog; gradual wavy boundary. Lab sample # MU052052
    3Bt8—148 to 163 centimeters (58.3 to 64.2 inches); yellowish red (5YR 5/6) gravelly clay; 1 percent reddish yellow (5YR 6/6) fine prominent and 1 percent brownish yellow (10YR 6/6) fine prominent mottles; weak fine subangular blocky structure; very firm; 1.0 medium roots and 0.1 fine roots; 1.0 medium tubular and 0.1 fine tubular pores; 75 percent distinct red (2.5YR 4/6), moist, clay films on all faces of peds; 30 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.1, hellige-truog. Lab sample # MU052053