IDENTIFIERS

  • Current Taxon Name (Soil Name): Darwin
  • OSD
  • Series Extent
  • User Site ID: 2009MO195009
  • User Pedon ID: 2009MO195009
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0919509
  • NCSS Pedon Lab Data NASIS Record ID - 25895
  • 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: 39.2543611
  • Std. Longitude: -93.4247500
  • Datum: WGS84
  • Country: US—United States
  • State: Missouri
  • County: MO195—Saline
  • MLRA: 107—Iowa and Missouri Deep Loess Hills
  • Non-MLRA Soil Survey Area: MO195—Saline County, Missouri
  • 7.5 Minute USGS Quad: 39093-C4—Carrollton East, Missouri

    • PEDON

  • Describers Name: Larry Gray
  • Current Taxonomic Class: Fine, smectitic, mesic Cumulic Vertic Endoaquolls
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 9
  • Correlated Information:
  • Soil Name - Darwin
  • PSC - 25 to 102 cm.
  • Classificaton Date - 7/23/2012
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - aquic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Moville
  • Classificaton Date - 4/24/2009
  • 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: poorly
  • 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: 4/24/2009 (actual site observation date)
  • Air Photo ID: 39093c4
  • Surface Water Kind: flooded
  • Surface Water Depth: 15
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - other barren
  • 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

    redox depletions with chroma 2 or less

    redox concentrations

    aquic conditions

    23—157

    23—79

    53—183

    53—183

    53—183

    —134—

    —56—

    —130—

    —130—

    —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

    0.4

    —

    —

    198.4

    —

    257

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); dark grayish brown (10YR 4/2) crushed silt loam; 19 percent clay; weak medium subangular blocky structure; friable; 3.0 fine roots throughout; fragments; noneffervescent, by hcl, 1n. Lab sample # MU005730; observed in push tube
    Bw—23 to 53 centimeters (9.1 to 20.9 inches); very dark gray (10YR 3/1) broken face silty clay; 43 percent clay; weak medium subangular blocky structure; firm; 3.0 fine roots throughout; fragments; noneffervescent, by hcl, 1n.; observed in push tube
    Bg—53 to 79 centimeters (20.9 to 31.1 inches); very dark grayish brown (2.5Y 3/2) 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; 1 percent medium faint irregular noncoherent cemented dark gray (2.5Y 4/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/4), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n.; observed in push tube
    Cg1—79 to 114 centimeters (31.1 to 44.9 inches); very dark grayish brown (2.5Y 3/2) broken face silty clay; 48 percent clay; structureless massive; firm; 0.5 very fine roots throughout; 1 percent medium faint irregular noncoherent cemented dark gray (2.5Y 4/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/4), moist, iron depletions with clear boundaries in matrix; fragments; noneffervescent, by hcl, 1n.; observed in push tube
    Cg2—114 to 157 centimeters (44.9 to 61.8 inches); very dark gray (2.5Y 3/1) broken face silty clay; 42 percent clay; structureless massive; firm; 0.5 very fine roots throughout; 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/4), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented dark gray (2.5Y 4/1), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n.; observed in push tube
    Cg3—157 to 183 centimeters (61.8 to 72.0 inches); dark grayish brown (2.5Y 4/2) broken face silty clay loam; 30 percent clay; structureless massive; friable; 1 percent medium faint irregular noncoherent cemented brown (7.5YR 4/4), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented dark gray (2.5Y 4/1), moist, iron depletions with clear boundaries in matrix; fragments; strong effervescence, by hcl, 1n.; observed in push tube