IDENTIFIERS

  • Current Taxon Name (Soil Name): Darwin
  • OSD
  • Series Extent
  • User Site ID: 2009MO165008
  • User Pedon ID: 2009MO165008
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0916508
  • NCSS Pedon Lab Data NASIS Record ID - 30080
  • 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: 39.4882222
  • Std. Longitude: -95.0601667
  • Datum: WGS84
  • Country: US—United States
  • State: Kansas
  • County: KS005—Atchison
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: KS005—Atchison County, Kansas
  • 7.5 Minute USGS Quad: 39095-D1—Oak Mills, Kansas

    • PEDON

  • Describers Name: Larry Gray
  • Current Taxonomic Class: Fine, mixed, mesic Fluvaquentic Vertic Endoaquolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 8
  • Correlated Information:
  • Soil Name - Darwin
  • PSC - 25 to 102 cm.
  • Classificaton Date - 2/1/2012
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - aquic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - N/a
  • Classificaton Date - 4/23/2009
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: clayey alluvium derived from mixed
  • Landscape: river valley
  • Landform: flood plain
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: negligible
  • Drainage Class: moderately well
  • Flooding: occasional flooding for brief periods begining in may
  • Ponding: none ponding
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/23/2009 (actual site observation date)
  • Air Photo ID: 39095d1
  • Surface Water Kind: flooded
  • Surface Water Depth: 15
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion sheet
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    cambic horizon

    0—46

    46—69

    —46—

    —23—
    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

    —

    —

    234.4

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark gray (10YR 3/1) crushed silty clay; 42 percent clay; weak medium subangular blocky structure; friable; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 very fine low-continuity irregular and 0.5 fine low-continuity irregular pores; fragments; noneffervescent, by hcl, 1n; abrupt smooth boundary. Lab sample # MU030486; observed in pit, small
    A—20 to 46 centimeters (7.9 to 18.1 inches); very dark gray (10YR 3/1) broken face silty clay; 48 percent clay; weak medium subangular blocky structure; firm; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 very fine low-continuity irregular and 0.5 fine low-continuity irregular pores; fragments; noneffervescent, by hcl, 1n; abrupt smooth boundary. Lab sample # MU030487; observed in pit, small
    Bw—46 to 69 centimeters (18.1 to 27.2 inches); 70 percent very dark grayish brown (10YR 3/2) broken face and 30 percent dark grayish brown (10YR 4/2) broken face silty clay; 43 percent clay; weak medium subangular blocky structure; firm; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 very fine low-continuity irregular and 0.5 fine low-continuity irregular pores; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # MU030488; observed in pit, small
    C1—69 to 86 centimeters (27.2 to 33.9 inches); very dark grayish brown (2.5Y 3/2) broken face silty clay; 58 percent clay; massive; firm; 0.5 fine roots throughout; 3.0 very fine low-continuity and 3.0 medium low-continuity and 3.0 fine low-continuity pores; fragments; slight effervescence, by hcl, 1n; clear smooth boundary. Lab sample # MU030489; observed in pit, small
    C2—86 to 122 centimeters (33.9 to 48.0 inches); dark grayish brown (2.5Y 4/2) broken face clay; 72 percent clay; massive; firm; 3.0 very fine low-continuity and 3.0 medium low-continuity and 3.0 fine low-continuity pores; fragments; slight effervescence, by hcl, 1n; clear wavy boundary. Lab sample # MU030490; observed in pit, small
    C3—122 to 147 centimeters (48.0 to 57.9 inches); dark grayish brown (2.5Y 4/2) broken face silty clay; 50 percent clay; massive; firm; 3.0 very fine low-continuity and 3.0 medium low-continuity and 3.0 fine low-continuity pores; 1 percent medium faint irregular noncoherent cemented brown (7.5YR 4/4), moist, iron depletions with clear boundaries in matrix; fragments; strong effervescence, by hcl, 1n; clear wavy boundary. Lab sample # MU030491; observed in pit, small
    C4—147 to 183 centimeters (57.9 to 72.0 inches); dark gray (5Y 4/1) broken face silty clay; 50 percent clay; massive; friable; 3.0 very fine low-continuity and 3.0 medium low-continuity and 3.0 fine low-continuity pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; strong effervescence, by hcl, 1n. Lab sample # MU030492; observed in pit, small