IDENTIFIERS

  • Current Taxon Name (Soil Name): Darwin
  • OSD
  • Series Extent
  • User Site ID: 1990MO019008
  • User Pedon ID: 1990MO019008
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9001908
  • NCSS Pedon Lab Data NASIS Record ID - 33522
  • 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: 38.9028206
  • Std. Longitude: -92.4679493
  • Datum: WGS84
  • Range: R13W
  • Section: 35
  • Location Description: 250 feet north and 500 feet east of the southwest corner of sec. 35, T. 48N., R. 13W;
  • State: Missouri
  • County: MO019—Boone
  • MLRA: 115—Central Mississippi Valley Wooded Slopes

    • PEDON

  • Describers Name: G.H. Davis F.J. Young
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • 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 - 4/25/1990
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium
  • Landform: flood plain
  • Slope Position: depression
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: negligible
  • Drainage Class: poorly
  • Flooding: occasional flooding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/25/1990 (actual site observation date)
  • Air Photo ID: 35
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop 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—61

    —-
    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

    —

    —

    —

    —

    914

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); black (10YR 2/1) silty clay loam; moderate fine subangular blocky, and weak fine granular structure; firm; fragments; neutral, pH 7.1, hellige-truog; clear smooth boundary. Lab sample # MU036962. (Note: The granular structure is in the upper part of the horizon.)
    A—18 to 51 centimeters (7.1 to 20.1 inches); black (10YR 2/1) silty clay loam; strong medium subangular blocky structure; firm; fragments; neutral, pH 6.8, hellige-truog; clear smooth boundary. Lab sample # MU036963
    AB—51 to 61 centimeters (20.1 to 24.0 inches); black (10YR 2/1) silty clay; strong medium subangular blocky structure; firm; dark yellowish brown (10YR 4/4) masses of oxidized iron; 1 percent fine brown (10YR 4/3); fragments; neutral, pH 6.8, hellige-truog; clear smooth boundary. Lab sample # MU036964
    Bg1—61 to 107 centimeters (24.0 to 42.1 inches); dark gray (10YR 4/1) silty clay; strong fine subangular blocky structure; firm; 25 percent fine dark yellowish brown (10YR 4/6) masses of oxidized iron; fragments; neutral, pH 6.7, hellige-truog; diffuse boundary. Lab sample # MU036965
    Bg2—107 to 150 centimeters (42.1 to 59.1 inches); gray (10YR 5/1) silty clay; strong fine subangular blocky structure; firm; 15 percent black (10YR 2/1) organic stains in root channels and/or pores; 10 percent fine and medium yellowish brown (10YR 5/6) masses of oxidized iron; fragments; neutral, pH 6.6, hellige-truog; abrupt smooth boundary. Lab sample # MU036966
    Cg—150 to 165 centimeters (59.1 to 65.0 inches); gray (10YR 5/1) stratified stratified silt loam to silty clay; moderate fine subangular blocky structure; friable; 15 percent black (10YR 2/1) organic stains in root channels and/or pores; 25 percent medium dark yellowish brown (10YR 4/6) masses of oxidized iron; fragments; neutral, pH 6.7, hellige-truog. Lab sample # MU036967