IDENTIFIERS

  • Current Taxon Name (Soil Name): Cornwall
  • OSD
  • Series Extent
  • User Site ID: 1994MO223075M
  • User Pedon ID: 1994MO223075
  • User Site Association ID: 8096
  • Transect:
  • User Transect ID - wayne-40
  • Transect Stop Number - 3
  • Transect Interval - 200.0
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9422375
  • Print Date: 11/23/2024

    • 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: 37.2402763
  • Std. Longitude: -90.2727814
  • Datum: WGS84
  • Township: T30N
  • Range: R7E
  • Section: 27
  • PLSS Details: 1200 feet N and 300 feet E of the SW corner
  • Location Description: 1200 feet N. and 300 feet E. of the SW corner of section 27, T. 30 N., R. 7 E.
  • Map Unit: 21C—Cornwall silt loam, 3 to 8 percent slopes74646—Cornwall silt loam, 3 to 8 percent slopes
  • State: Missouri
  • County: MO223—Wayne
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO223—Wayne County, Missouri
  • 7.5 Minute USGS Quad: 37090-B3—Lowndes, Missouri

    • PEDON

  • Describers Name: DH-RT
  • Current Taxonomic Class: Fine-silty, mixed, active, mesic Aquic Fragiudalfs
  • 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 - Cornwall
  • PSC - 28 to 78 cm.
  • Classificaton Date - 2/1/2012
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Cornwall
  • Taxon Kind - series
  • Classificaton Date - 11/22/1994
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 46 Cation Exc. to Clay x100


    • SITE

  • Parent Material: loess over slope alluvium derived from cherty limestone over residuum weathered from cherty limestone
  • Landscape: plateau
  • Landform: stream terrace
  • Runoff: medium
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/22/1994 (actual site observation date)
  • Air Photo ID: 2199-85
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    fragipan

    0—28

    28—203

    81—130

    —-

    —-

    —-
    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

    6

    —

    —

    172

    —

    180

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 13 centimeters (0.0 to 5.1 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; silt loam; moderate fine granular structure; very friable; moderate permeability; 3.0 very fine and fine roots and 0.5 medium roots; 2 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # MU051594
    E—13 to 28 centimeters (5.1 to 11.0 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; silt loam; weak and moderate fine and medium subangular blocky structure; very friable; 3.0 very fine and fine roots and 0.5 medium roots; 2 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; slightly acid, pH 6.5, hellige-truog; abrupt wavy boundary. Lab sample # MU051595
    Bt1—28 to 43 centimeters (11.0 to 16.9 inches); yellowish brown (10YR 5/4) silty clay loam; 1 percent pale brown (10YR 6/3) medium faint and 1 percent yellowish brown (10YR 5/6) fine faint mottles; weak medium prismatic parts to weak and moderate fine and medium subangular blocky structure; firm; 3.0 very fine and fine roots and 0.5 medium roots; 25 percent distinct clay films on faces of peds; 3 percent fine iron-manganese masses throughout; 2 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 5.0, hellige-truog; gradual wavy boundary. Lab sample # MU051596. discontinuous - phpvsfiid 162748; discontinuous - phpvsfiid 162748
    Bt2—43 to 58 centimeters (16.9 to 22.8 inches); yellowish brown (10YR 5/4) silty clay loam; 15 percent yellowish brown (10YR 5/6) fine and medium faint and 25 percent pale brown (10YR 6/3) fine and medium faint mottles; weak medium prismatic parts to moderate very fine and fine subangular blocky structure; firm; 0.5 very fine and fine roots; 25 percent distinct clay films on faces of peds; 10 percent fine iron-manganese masses throughout; 2 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 # MU051597. discontinuous - phpvsfiid 162749; discontinuous - phpvsfiid 162749
    Bt/E11—58 to 81 centimeters (22.8 to 31.9 inches); gray (10YR 6/1) silt loam; firm; 0.5 very fine and fine roots; 2 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # MU051598
    Bt/E12—58 to 81 centimeters (22.8 to 31.9 inches); yellowish brown (10YR 5/4) silt loam; 20 percent strong brown (7.5YR 5/6) fine and medium prominent mottles; weak medium prismatic parts to weak and moderate very fine and fine subangular blocky structure; firm; 20 percent distinct clay films on faces of peds; fragments. Lab sample # MU051598. continuous - phpvsfiid 162750; continuous - phpvsfiid 162750
    2Btx—81 to 130 centimeters (31.9 to 51.2 inches); yellowish brown (10YR 5/4) extremely gravelly silt loam; 10 percent red (7.5R 5/6) fine and medium prominent mottles; moderate fine platy structure; firm; brittle; slow permeability; 0.5 very fine roots; 10 percent faint clay films on lower surfaces of peds or rocks; 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 5.0, hellige-truog; abrupt wavy boundary. Lab sample # MU051599. patchy - phpvsfiid 162751; patchy - phpvsfiid 162751
    3Bt3—130 to 165 centimeters (51.2 to 65.0 inches); 60 percent red (2.5YR 4/8) and 40 percent yellowish brown (10YR 5/6) very gravelly clay; weak fine subangular blocky structure; firm; 0.5 very fine roots; 10 percent distinct clay films on faces of peds; 1 percent by volume nonflat subangular indurated 250-425-600 millimeter chert fragments and 10 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; neutral, pH 7.0, hellige-truog; gradual smooth boundary. Lab sample # MU051600. discontinuous - phpvsfiid 162752; discontinuous - phpvsfiid 162752
    3Bt4—165 to 203 centimeters (65.0 to 79.9 inches); 60 percent red (2.5YR 4/8) and 40 percent yellowish brown (10YR 5/6) extremely gravelly clay; weak fine subangular blocky structure; firm; 10 percent faint clay films on faces of peds; 1 percent by volume nonflat subangular indurated 250-425-600 millimeter chert fragments and 10 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 50 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; slightly alkaline, pH 7.4, hellige-truog. Lab sample # MU051601. discontinuous - phpvsfiid 162753; discontinuous - phpvsfiid 162753