IDENTIFIERS

  • Current Taxon Name (Soil Name): Mexico
  • OSD
  • Series Extent
  • User Site ID: 2004MO183054
  • User Pedon ID: 2004MO183054
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0418354
  • NCSS Pedon Lab Data NASIS Record ID - 30437
  • Print Date: 11/26/2024

    • 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: 38.6767528
  • Std. Longitude: -90.9390944
  • Datum: WGS84
  • Township: T45N
  • Range: R1E
  • Section: 8
  • PLSS Details: 2020 feet east and 660 feet south of the northwest corner
  • Country: US—United States
  • State: Missouri
  • County: MO183—St. Charles
  • MLRA: 113—Central Claypan Areas
  • Non-MLRA Soil Survey Area: MO053—Cooper County, MissouriMO183—St. Charles County, Missouri

    • PEDON

  • Describers Name: Greg Caldwell, Dave Dowdy, Wes Simmons
  • Current Taxonomic Class: Fine, smectitic, mesic Aeric Vertic Epiaqualfs
  • Current Taxon Kind: series
  • Pedon Type: within range of map unit
  • Pedon Purpose: research site
  • Pedon Record Orgin: Windows Pedon
  • Pedon #: 54
  • Sampled As Information:
  • Soil Name - Mexico
  • Taxonomic Class - Fine, smectitic, mesic Aeric Vertic Epiaqualfs
  • PSC - 33 to 84 cm.
  • Classificaton Date - 5/17/2004
  • Soil Taxonomic Edition - second edition
  • Moisture Class - aquic
  • Moisture SUBClass - aeric
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Position: lower third
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: very low
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/17/2004 (actual site observation date)
  • Air Photo ID: 38090f8sw
  • Surface Water Kind: none observed
  • 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

    ochric epipedon

    argillic horizon

    0—33

    33—592

    —33—

    —559—
    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

    7

    —

    —

    256.6

    —

    315

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); very dark grayish brown (10YR 3/2) interior silty clay; weak fine subangular blocky structure; friable; 3.0 very fine roots; 3.0 very fine pores; fragments; abrupt smooth boundary. Lab sample # MU026193; observed in push tube
    E—18 to 33 centimeters (7.1 to 13.0 inches); brown (10YR 5/3) interior silty clay; weak very fine subangular blocky structure; friable; 3.0 very fine roots; 3.0 very fine pores; fragments; abrupt smooth boundary. Lab sample # MU026194; observed in push tube
    Btg1—33 to 53 centimeters (13.0 to 20.9 inches); 60 percent grayish brown (10YR 5/2) interior and 40 percent red (2.5YR 4/6) interior silty clay; moderate fine subangular blocky, and weak medium prismatic structure; very firm; 3.0 fine roots; 3.0 fine pores; 15 percent light brownish gray (10YR 6/2), moist, silt coats and 50 percent distinct dark grayish brown (10YR 4/2), moist, clay films; fragments; abrupt smooth boundary. Lab sample # MU026195; observed in push tube. continuous - phpvsfiid 886457; continuous - phpvsfiid 886457
    Btg2—53 to 81 centimeters (20.9 to 31.9 inches); 50 percent grayish brown (10YR 5/2) interior and 50 percent dark yellowish brown (10YR 4/4) interior silty clay loam; weak medium subangular blocky, and weak medium prismatic structure; firm; 0.9 fine roots; 0.9 fine pores; 10 percent distinct light brownish gray (10YR 6/2), moist, silt coats and 40 percent distinct dark gray (10YR 4/1), moist, clay films; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 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; clear smooth boundary. Lab sample # MU026196; observed in push tube. discontinuous - phpvsfiid 886459; discontinuous - phpvsfiid 886459
    Btg3—81 to 122 centimeters (31.9 to 48.0 inches); grayish brown (10YR 5/2) interior silty clay loam; weak coarse prismatic structure; firm; 0.9 fine roots; 3.0 fine pores; 20 percent distinct dark gray (10YR 4/1), moist, clay films; 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 and 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 # MU026197; observed in push tube. discontinuous - phpvsfiid 886461; discontinuous - phpvsfiid 886461
    2Btg4—122 to 152 centimeters (48.0 to 59.8 inches); 75 percent grayish brown (10YR 5/2) interior and 25 percent dark yellowish brown (10YR 4/6) interior silty clay loam; moderate medium prismatic structure; very firm; 0.9 fine roots; 3.0 fine pores; 10 percent light brownish gray (10YR 6/2), moist, silt coats and 20 percent distinct dark grayish brown (10YR 4/2), moist, clay films on vertical faces of peds; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented brown (7.5YR 4/4), moist, iron depletions with clear boundaries in matrix; 1 percent by volume 2-?-75 millimeter chert fragments; gradual smooth boundary. Lab sample # MU026198; observed in push tube. continuous - phpvsfiid 886462; continuous - phpvsfiid 886462
    2Btg5—152 to 180 centimeters (59.8 to 70.9 inches); 65 percent grayish brown (10YR 5/2) interior and 35 percent dark yellowish brown (10YR 4/6) interior silty clay loam; moderate medium prismatic structure; very firm; 0.9 fine roots; 3.0 fine pores; 20 percent distinct dark grayish brown (10YR 4/2), moist, clay films on vertical faces of peds and 25 percent light brownish gray (10YR 6/2), moist, silt coats; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented brown (7.5YR 4/4), moist, iron depletions with clear boundaries in matrix; 1 percent by volume 2-?-75 millimeter chert fragments; gradual smooth boundary. Lab sample # MU026199; observed in push tube. continuous - phpvsfiid 886464; continuous - phpvsfiid 886464
    3Bt—180 to 254 centimeters (70.9 to 100.0 inches); 60 percent yellowish brown (10YR 5/6) interior and 40 percent grayish brown (10YR 5/2) interior clay; weak coarse prismatic structure; very firm; 60 percent pressure faces; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented reddish brown (2.5YR 4/4), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU026200; observed in push tube
    3Btg—254 to 467 centimeters (100.0 to 183.9 inches); 40 percent yellowish brown (10YR 5/6) interior and 60 percent grayish brown (10YR 5/2) interior clay; weak coarse prismatic structure; very firm; 60 percent pressure faces; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented red (2.5YR 4/6), moist, iron depletions with clear boundaries in matrix; 5 percent by volume 2-?-75 millimeter chert fragments; abrupt smooth boundary.; observed in push tube
    4Bt1—467 to 563 centimeters (183.9 to 221.7 inches); 40 percent light gray (2.5Y 7/1) interior and 40 percent yellowish red (5YR 4/6) interior and 20 percent red (10R 4/6) interior stratified stratified very gravelly clay; moderate fine prismatic structure; very firm; 1 percent medium faint irregular noncoherent cemented dark red (10R 3/6), moist, iron depletions with clear boundaries in matrix; 50 percent by volume 2-?-75 millimeter chert fragments; clear smooth boundary.; observed in push tube
    4Bt2—563 to 591 centimeters (221.7 to 232.7 inches); brownish yellow (10YR 6/8) interior clay; moderate fine prismatic structure; very firm; 1 percent medium faint irregular noncoherent cemented red (10R 4/6), moist, iron depletions with clear boundaries in matrix; 40 percent by volume 2-?-75 millimeter chert fragments.; observed in push tube
    591 to 630 centimeters (232.7 to 248.0 inches); fragments.
    630 to 630 centimeters (248.0 to 248.0 inches); fragments.