IDENTIFIERS

  • Current Taxon Name (Soil Name): Darwin
  • OSD
  • Series Extent
  • User Site ID: 1990MO019044
  • User Pedon ID: 1990MO019044
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9001944
  • NCSS Pedon Lab Data NASIS Record ID - 28148
  • Print Date: 2/17/2025

    • 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: 39.1341495
  • Std. Longitude: -92.4085272
  • Datum: WGS84
  • Range: R13W
  • Section: 8
  • Location Description: 1150 feet north and 1125 feet east of the southwest corner of sec. 8, T.50N.,13W.
  • State: Missouri
  • County: MO019—Boone
  • MLRA: 115—Central Mississippi Valley Wooded Slopes

    • PEDON

  • Describers Name: G.H. Davis
  • Pedon Type: within range of map unit
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Darwin
  • PSC - 25 to 100 cm.
  • Classificaton Date - 9/28/1990
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium
  • Landform: fluvial terrace
  • Runoff: negligible
  • Drainage Class: very poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/28/1990 (actual site observation date)
  • Air Photo ID: 9
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • 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

    mollic epipedon

    0—107

    —-
    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

    0

    —

    —

    —

    —

    —

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    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark gray (10YR 3/1), dark gray (10YR 4/1), dry; silty clay loam; weak fine subangular blocky, and weak fine granular structure; firm; 3.0 very fine roots and 0.5 fine roots; fragments; slightly alkaline, pH 7.4, hellige-truog; abrupt smooth boundary. Lab sample # MU014044
    A—20 to 41 centimeters (7.9 to 16.1 inches); black (7.5YR 2/1), very dark gray (10YR 3/1), dry; silty clay loam; moderate fine prismatic parts to moderate fine subangular blocky structure; firm; 0.5 very fine roots; fragments; neutral, pH 6.7, hellige-truog; clear smooth boundary. Lab sample # MU014045
    Cg1—41 to 64 centimeters (16.1 to 25.2 inches); black (10YR 2/1) silty clay loam; 10 percent very dark gray (10YR 3/1) fine distinct mottles; strong medium prismatic parts to strong fine and medium subangular blocky structure; firm; 1 percent fine dark yellowish brown (10YR 3/4) masses of oxidized iron; fragments; neutral, pH 6.7, hellige-truog; clear smooth boundary. Lab sample # MU014046
    Cg2—64 to 107 centimeters (25.2 to 42.1 inches); very dark gray (10YR 3/1) silty clay loam; strong medium prismatic parts to strong fine subangular blocky structure; very firm; 10 percent fine dark yellowish brown (10YR 3/6) masses of oxidized iron; fragments; neutral, pH 6.7, hellige-truog; gradual smooth boundary. Lab sample # MU014047
    Cg3—107 to 130 centimeters (42.1 to 51.2 inches); dark gray (10YR 4/1) silty clay loam; strong medium prismatic parts to strong fine and medium subangular blocky structure; very firm; 10 percent fine dark yellowish brown (10YR 3/4) masses of oxidized iron; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Lab sample # MU014048
    Cg4—130 to 160 centimeters (51.2 to 63.0 inches); gray (10YR 5/1) silty clay loam; strong medium prismatic parts to strong fine subangular blocky structure; firm; faint dark gray (10YR 4/1) on faces of peds and 15 percent distinct very dark gray (10YR 3/1) in root channels and/or pores; 15 percent fine dark yellowish brown (10YR 4/6) masses of oxidized iron; fragments; slight effervescence; neutral, pH 6.9, hellige-truog; clear smooth boundary. Lab sample # MU014049
    Cg5—160 to 193 centimeters (63.0 to 76.0 inches); gray (10YR 5/1) silt loam; moderate fine subangular blocky structure; friable; 65 percent distinct very dark gray (10YR 3/1) in root channels and/or pores; 1 percent fine iron-manganese concretions and 25 percent medium dark yellowish brown (10YR 4/6) masses of oxidized iron; fragments; slight effervescence; neutral, pH 6.7, hellige-truog. Lab sample # MU014050