IDENTIFIERS

  • Current Taxon Name (Soil Name): LOMAX
  • OSD
  • Series Extent
  • User Site ID: 2007MO183034
  • User Pedon ID: 2007MO183034
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0718334
  • NCSS Pedon Lab Data NASIS Record ID - 25706
  • 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: 38.8599722
  • Std. Longitude: -90.4636667
  • Datum: WGS84
  • Township: T47N
  • Range: R5E
  • Section: 4
  • PLSS Details: 2,724 feet East and 1,315 feet South from the South West corner
  • 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: Mike Cook, Ralph Tucker, Grant Butler
  • 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 #: 34
  • Sampled As Information:
  • Soil Name - LOMAX
  • Taxonomic Class - Fine-silty, mixed, superactive, mesic Cumulic Hapludolls
  • PSC - 25 to 102 cm.
  • Classificaton Date - 10/2/2007
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/2/2007 (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 gully
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    cambic horizon

    lithologic discontinuity

    0—81

    53—145

    145—

    —81—

    —92—

    —1—
    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

    0.5

    —

    —

    135.6

    —

    1

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); black (10YR 2/1) interior silt loam; moderate fine granular, and weak fine subangular blocky structure; friable; 0.5 very fine roots throughout; 1.0 fine tubular pores; fragments; noneffervescent, by hcl, 1n; abrupt smooth boundary. Lab sample # MU004307; observed in push tube
    A1—18 to 33 centimeters (7.1 to 13.0 inches); black (10YR 2/1) interior silt loam; moderate fine subangular blocky structure; friable; 0.5 very fine roots throughout and 0.5 fine roots throughout; 1.0 very fine tubular and 1.0 fine tubular pores; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # MU004308; observed in push tube
    A2—33 to 53 centimeters (13.0 to 20.9 inches); black (10YR 2/1) interior silty clay loam; moderate very fine subangular blocky, and weak fine prismatic structure; friable; 0.5 very fine roots throughout and 0.5 fine roots throughout; 1.0 very fine tubular pores; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # MU004309; observed in push tube
    Bw1—53 to 81 centimeters (20.9 to 31.9 inches); 80 percent very dark grayish brown (10YR 3/2) interior and 20 percent brown (10YR 4/3) interior silty clay loam; moderate very fine subangular blocky, and weak very fine prismatic structure; firm; 0.5 very fine roots throughout and 0.5 fine roots throughout; 1.0 very fine tubular pores; 95 percent distinct black (10YR 2/1), moist, organic stains on all faces of peds; fragments; noneffervescent, by hcl, 1n; gradual smooth boundary. Lab sample # MU004310; observed in push tube
    Bw2—81 to 124 centimeters (31.9 to 48.8 inches); brown (10YR 4/3) interior silt loam; moderate fine subangular blocky, and moderate fine prismatic structure; firm; 0.5 very fine roots throughout and 0.5 fine roots throughout; 1.0 very fine tubular pores; 80 percent distinct black (10YR 2/1), moist, organic stains on all faces of peds; 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # MU004311; observed in push tube
    Bw3—124 to 145 centimeters (48.8 to 57.1 inches); 60 percent dark yellowish brown (10YR 3/4) interior and 40 percent brown (10YR 4/3) interior fine sandy loam; weak medium subangular blocky, and weak medium prismatic structure; friable; 0.5 very fine roots throughout and 0.5 fine roots throughout; 1.0 very fine tubular pores; 35 percent distinct black (10YR 2/1), moist, organic stains on all faces of peds; 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; fragments; noneffervescent, by hcl, 1n; gradual smooth boundary. Lab sample # MU004312; observed in push tube
    2C1—145 to 183 centimeters (57.1 to 72.0 inches); brown (10YR 4/3) interior loamy fine sand; structureless single grain; loose; 3.0 fine interstitial pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; noneffervescent, by hcl, 1n; gradual smooth boundary. Lab sample # MU004313; observed in push tube
    2C2—183 to 203 centimeters (72.0 to 79.9 inches); 60 percent dark grayish brown (10YR 4/2) interior and 40 percent brown (10YR 4/3) interior loamy fine sand; structureless single grain; loose; 3.0 fine interstitial pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; noneffervescent, by hcl, 1n. Lab sample # MU004314; observed in push tube