IDENTIFIERS

  • Current Taxon Name (Soil Name): MEXICO
  • OSD
  • Series Extent
  • User Site ID: 2007MO027058
  • User Pedon ID: 2007MO027058
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0702758
  • NCSS Pedon Lab Data NASIS Record ID - 30278
  • Print Date: 11/23/2024

    • 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: 38.9251667
  • Std. Longitude: -91.7240833
  • Datum: WGS84
  • Township: T48N
  • Range: R7W
  • Section: 20
  • PLSS Details: 2,642 feet East and 246 feet South from the North West corner
  • Country: US—United States
  • State: Missouri
  • County: MO027—Callaway
  • MLRA: 113—Central Claypan Areas
  • Non-MLRA Soil Survey Area: MO027—Callaway County, Missouri
  • 7.5 Minute USGS Quad: 38091-H6—Williamsburg, Missouri

    • PEDON

  • Describers Name: Mike Chalfant, LeAnn Bullard, Amber Marshaus
  • Current Taxonomic Class: Fine, smectitic, mesic Aeric Vertic Epiaqualfs
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 58
  • Sampled As Information:
  • Soil Name - MEXICO
  • Taxonomic Class - Fine, smectitic, mesic Aeric Vertic Epiaqualfs
  • PSC - 0 to 0 cm.
  • Classificaton Date - 11/7/2006
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - aquic
  • Moisture SUBClass - aeric
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: till plain
  • Landform: divide
  • Anthropogenic Feature: ditch
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: negligible
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: extremely weakly coherent moderate weathered conglomerate, unspecified at 871cm with 45 to <100 and a strike of 0 degrees and a dip of 0 to 0 degrees
  • Geology: Cheltenham Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/7/2006 (actual site observation date)
  • Air Photo ID: 38091h6sw
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion gully
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

    —

    869 - 871

    - 2 -

    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    lithic contact

    869—871

    —2—
    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

    3

    —

    —

    250.9

    —

    180

    —

    —

    —

    —

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    Ap—0 to 61 centimeters (0.0 to 24.0 inches); very dark grayish brown (10YR 3/2) rubbed silt loam; moderate fine granular, and weak thin platy structure; friable; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 very fine tubular and 3.0 fine tubular pores; 1 percent by volume nonflat subangular indurated 2-?-75 millimeter chert fragments; gradual smooth boundary.; observed in push tube
    Bt1—61 to 91 centimeters (24.0 to 35.8 inches); 50 percent dark yellowish brown (10YR 4/6) broken face and 50 percent dark grayish brown (10YR 4/2) broken face silty clay loam; moderate fine subangular blocky, and moderate medium subangular blocky structure; firm; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 very fine tubular and 0.5 fine tubular pores; 12 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU028540; observed in push tube
    Bt2—91 to 213 centimeters (35.8 to 83.9 inches); yellowish brown (10YR 5/4) broken face silty clay loam; moderate fine subangular blocky structure; friable; 12 percent distinct light gray (10YR 7/1), moist, silt coats on all faces of peds and 12 percent distinct clay films on all faces of peds; 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 gray (7.5YR 6/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU028541; observed in push tube
    2B/Etgb—213 to 274 centimeters (83.9 to 107.9 inches); gray (10YR 6/1) broken face silt loam; moderate fine subangular blocky, and moderate medium subangular blocky structure; firm; 35 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary.; observed in push tube
    3Btgb—274 to 335 centimeters (107.9 to 131.9 inches); gray (2.5Y 6/1) broken face silty clay; weak fine subangular blocky, and weak medium subangular blocky structure; very firm; 12 percent distinct clay films on all faces of peds and 35 percent distinct slickensides (pedogenic) 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 black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; abrupt smooth boundary.; observed in push tube
    3Btssgb—335 to 549 centimeters (131.9 to 216.1 inches); gray (2.5Y 6/1) broken face silty clay; weak fine angular blocky structure; very firm; 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 black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; gradual smooth boundary.; observed in push tube
    4Cb—549 to 610 centimeters (216.1 to 240.2 inches); strong brown (7.5YR 5/8) broken face clay loam; massive; firm; 1 percent medium faint irregular noncoherent cemented light brownish gray (10YR 6/2), moist, iron depletions with clear boundaries in matrix; 8 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; abrupt smooth boundary.; observed in push tube
    4Cgb—610 to 732 centimeters (240.2 to 288.2 inches); light brownish gray (2.5Y 6/2) broken face sandy clay loam; massive; firm; 12 percent distinct clay films on all faces of peds; fragments; abrupt smooth boundary.; observed in push tube
    5Cdb—732 to 762 centimeters (288.2 to 300.0 inches); yellowish brown (10YR 5/6) broken face silty clay; massive; very firm; 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 light greenish gray (10Y 7/1), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat rounded indurated 2-?-5 millimeter siltstone, unspecified fragments and 1 percent by volume nonflat subangular indurated 2-?-5 millimeter quartzite fragments; abrupt smooth boundary.; observed in push tube
    6C—762 to 853 centimeters (300.0 to 335.8 inches); light brownish gray (2.5Y 6/2) broken face loamy sand; structureless single grain; firm; fragments; abrupt smooth boundary.; observed in push tube
    7Cr—853 to 869 centimeters (335.8 to 342.1 inches); 10 percent brownish yellow (10YR 6/8) broken face and 90 percent dusky red (10R 3/2) broken face clay; massive; very firm; fragments.; observed in push tube