IDENTIFIERS

  • Current Taxon Name (Soil Name): LOMAX
  • OSD
  • Series Extent
  • User Site ID: 2007MO183032
  • User Pedon ID: 2007MO183032
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0718332
  • NCSS Pedon Lab Data NASIS Record ID - 25699
  • Print Date: 11/21/2024

    • 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: 38.8521389
  • Std. Longitude: -90.4711389
  • Datum: WGS84
  • PLSS Details: 509 feet East and 4,386 feet South from the North West corner of Survey 10001,
  • Country: US—United States
  • State: Missouri
  • County: MO183—St. Charles
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: MO183—St. Charles County, Missouri
  • 7.5 Minute USGS Quad: 38090-G4—Saint Charles, Missouri

    • PEDON

  • Describers Name: Teresa Gerber, Ralph Tucker, Mike Cook, Keith Knelle
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Cumulic Hapludolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 32
  • Sampled As Information:
  • Soil Name - LOMAX
  • Taxonomic Class - Fine-silty, mixed, superactive, mesic Cumulic Hapludolls
  • PSC - 25 to 102 cm.
  • Classificaton Date - 10/1/2007
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: river valley
  • Landform: flood plain
  • Geomorphic Component Terraces: tread
  • Hill Slope Profile: summit
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: negligible
  • Drainage Class: well
  • Flooding: rare flooding for extremely brief periods
  • Ponding: none ponding
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/1/2007 (actual site observation date)
  • Air Photo ID: 38090g4nw
  • Surface Water Kind: flooded
  • Surface Water Depth: 15
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • 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—91

    91—203

    —91—

    —112—
    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

    —

    —

    —

    134.7

    —

    1

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap1—0 to 23 centimeters (0.0 to 9.1 inches); black (10YR 2/1) broken face loam; moderate medium subangular blocky structure; firm; 3.0 very fine roots throughout and 3.0 fine roots throughout; 0.5 fine tubular pores; fragments; gradual smooth boundary. Lab sample # MU004254; observed in push tube
    Ap2—23 to 48 centimeters (9.1 to 18.9 inches); black (10YR 2/1) broken face loam; weak fine subangular blocky, and moderate fine prismatic structure; firm; 3.0 very fine roots throughout and 3.0 fine roots throughout; 0.5 fine tubular pores; fragments; gradual smooth boundary. Lab sample # MU004255; observed in push tube
    A1—48 to 66 centimeters (18.9 to 26.0 inches); 60 percent black (10YR 2/1) broken face and 40 percent very dark gray (10YR 3/1) broken face clay loam; weak fine subangular blocky, and moderate fine prismatic structure; firm; 3.0 very fine roots throughout and 3.0 fine roots throughout; 0.5 fine tubular pores; fragments; gradual smooth boundary. Lab sample # MU004256; observed in push tube
    A2—66 to 91 centimeters (26.0 to 35.8 inches); 40 percent very dark grayish brown (10YR 3/2) broken face and 60 percent very dark gray (10YR 3/1) broken face loam; weak fine subangular blocky, and moderate fine prismatic structure; friable; 3.0 very fine roots throughout and 3.0 fine roots throughout; 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU004257; observed in push tube
    Bw1—91 to 114 centimeters (35.8 to 44.9 inches); 70 percent dark grayish brown (10YR 4/2) broken face and 30 percent grayish brown (10YR 5/2) broken face silt loam; weak fine subangular blocky structure; friable; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 fine tubular pores; 12 percent distinct very dark grayish brown (10YR 3/2), moist, organic stains on all faces of peds; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU004258; observed in push tube
    Bw2—114 to 152 centimeters (44.9 to 59.8 inches); 50 percent grayish brown (10YR 5/2) broken face and 50 percent brown (10YR 5/3) broken face loam; weak fine subangular blocky structure; friable; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU004259; observed in push tube
    Bw3—152 to 170 centimeters (59.8 to 66.9 inches); 60 percent light brownish gray (10YR 6/2) broken face and 40 percent grayish brown (10YR 5/2) broken face silty clay loam; weak fine subangular blocky structure; friable; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented yellowish red (5YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented dark red (10R 3/6), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU004260; observed in push tube
    Bw4—170 to 203 centimeters (66.9 to 79.9 inches); 40 percent light brownish gray (10YR 6/2) broken face and 60 percent grayish brown (10YR 5/2) broken face loam; weak fine subangular blocky structure; friable; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented yellowish red (5YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments. Lab sample # MU004261; observed in push tube