IDENTIFIERS

  • Current Taxon Name (Soil Name): Darwin
  • OSD
  • Series Extent
  • User Site ID: 1989MO053041
  • User Pedon ID: 1989MO053041
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M8905341
  • NCSS Pedon Lab Data NASIS Record ID - 26924
  • Print Date: 11/11/2024

    • 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: 38.9444167
  • Std. Longitude: -92.5473333
  • Datum: WGS84
  • Township: T48N
  • Range: R15W
  • Section: 3
  • PLSS Details: 1800' E and 1200' N of the SW corner
  • Map Unit: 66079—Darwin silty clay, 0 to 2 percent slopes, occasionally flooded
  • State: Missouri
  • County: MO053—Cooper
  • MLRA: 112—Cherokee Prairies
  • Non-MLRA Soil Survey Area: MO053—Cooper County, Missouri
  • 7.5 Minute USGS Quad: 38092-H5—Rocheport, Missouri

    • PEDON

  • Describers Name: John L. Baker, Greg Caldwell, David Skaer
  • Current Taxonomic Class: Fine, smectitic, mesic Vertic Haplaquolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Darwin
  • PSC - 25 to 100 cm.
  • Classificaton Date - 12/8/2010
  • Sampled As Information:
  • Soil Name - Darwin
  • Classificaton Date - 1/12/2005
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Clayey alluvium
  • Landform: flood plain
  • Runoff: medium
  • Drainage Class: poorly
  • Flooding: frequent flooding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/12/2005 (entry creation date)
  • 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

    mollic epipedon

    cambic horizon

    0—33

    33—152

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    —-
    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

    1

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    Ap—0 to 15 centimeters (0.0 to 5.9 inches); very dark gray (10YR 3/1) exterior silty clay; moderate very fine subangular blocky structure; firm; very slow permeability; 0.8 very fine roots; fragments; neutral, pH 7.0; abrupt smooth boundary. Lab sample # MU012930; slightly dry when described; observed in pit, small
    A1—15 to 33 centimeters (5.9 to 13.0 inches); very dark grayish brown (2.5Y 3/2) exterior silty clay; moderate fine subangular blocky structure; very firm; 0.8 very fine roots; fragments; neutral, pH 7.0; clear smooth boundary. Lab sample # MU012931; observed in pit, small
    Bg1—33 to 56 centimeters (13.0 to 22.0 inches); dark grayish brown (2.5Y 4/2) exterior silty clay; 10 percent dark yellowish brown (10YR 4/6) fine distinct mottles; strong very fine angular blocky structure; very firm; 0.8 very fine roots; fragments; neutral, pH 7.0; gradual smooth boundary. Lab sample # MU012932; observed in pit, small
    Bg2—56 to 81 centimeters (22.0 to 31.9 inches); dark grayish brown (2.5Y 4/2) exterior silty clay; 10 percent dark yellowish brown (10YR 4/4) fine distinct mottles; strong fine angular blocky structure; very firm; 0.8 very fine roots; fragments; neutral, pH 7.0; gradual smooth boundary. Lab sample # MU012933; observed in pit, small
    Bg3—81 to 112 centimeters (31.9 to 44.1 inches); grayish brown (2.5Y 5/2) exterior and gray (10YR 5/1) exterior silty clay; strong fine angular blocky structure; very firm; 0.8 very fine roots; 1 percent fine iron-manganese masses; fragments; neutral, pH 7.0; gradual smooth boundary. Lab sample # MU012934; observed in pit, small
    Bg4—112 to 152 centimeters (44.1 to 59.8 inches); gray (10YR 5/1) exterior silty clay; 10 percent dark yellowish brown (10YR 4/4) fine distinct and 20 percent dark grayish brown (2.5Y 4/2) fine distinct mottles; moderate fine subangular blocky structure; very firm; 0.8 very fine roots; 40 percent pressure faces; 1 percent fine iron-manganese masses; 1 percent fine carbonate concretions; fragments; neutral, pH 7.0 smooth boundary. Lab sample # MU012935; observed in pit, small