IDENTIFIERS

  • Current Taxon Name (Soil Name): MEXICO
  • OSD
  • Series Extent
  • User Site ID: 2007MO027050
  • User Pedon ID: 2007MO027050
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0702750
  • NCSS Pedon Lab Data NASIS Record ID - 30285
  • 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: 38.9022222
  • Std. Longitude: -91.6432778
  • Datum: WGS84
  • Township: T48N
  • Range: R7W
  • Section: 25
  • PLSS Details: 849 feet West and 2,487 feet North from the South East corner
  • Country: US—United States
  • State: Missouri
  • County: MO027—Callaway
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • 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 #: 50
  • Sampled As Information:
  • Soil Name - MEXICO
  • Taxonomic Class - Fine, smectitic, mesic Aeric Vertic Epiaqualfs
  • PSC - 0 to 0 cm.
  • Classificaton Date - 10/19/2006
  • 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

  • Parent Material: fine-silty loess derived from mixed over clayey till derived from igneous, metamorphic and sedimentary rock
  • Landscape: till plain
  • Landform: spur
  • Anthropogenic Feature: cut (road, railroad, etc.)
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Position: upper 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: weakly coherent strong weathered shale, clayey at 488cm with 45 to <100 and a strike of 0 degrees and a dip of 0 to 0 degrees
  • Geology: Warner Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/19/2006 (actual site observation date)
  • Air Photo ID: 38091h6se
  • 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

    —

    488 - 488

    - 1 -

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

    lithic contact

    488—488

    —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

    1.5

    —

    —

    249.9

    —

    0

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 10 centimeters (0.0 to 3.9 inches); very dark grayish brown (10YR 3/2) crushed Error; weak very fine subangular blocky, and weak thin platy structure; friable; 10.0 very fine roots throughout and 0.5 medium roots throughout and 10.0 fine roots throughout; 3.0 very fine tubular and 0.5 medium tubular and 3.0 fine tubular pores; 5 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; clear smooth boundary.; observed in pit, small
    Bp1—10 to 91 centimeters (3.9 to 35.8 inches); brown (10YR 4/3) broken face Error; weak fine subangular blocky, and moderate thin platy 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; 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 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), 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 pit, small
    Bp2—91 to 122 centimeters (35.8 to 48.0 inches); grayish brown (10YR 5/2) broken face Error; massive; firm; 0.5 fine roots throughout; 0.5 fine tubular pores; 12 percent distinct clay films 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. Lab sample # MU028474; observed in pit, small
    2Bt—122 to 183 centimeters (48.0 to 72.0 inches); strong brown (7.5YR 5/6) broken face Error; massive; firm; 0.5 very fine roots throughout; 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 (5Y 6/1), moist, iron depletions with clear boundaries in matrix; 4 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; clear smooth boundary. Lab sample # MU028475; observed in pit, small
    2Btssg—183 to 244 centimeters (72.0 to 96.1 inches); gray (N 5/0) broken face Error; moderate fine subangular blocky, and moderate coarse prismatic structure; very firm; 12 percent prominent gray (N 5/0), moist, slickensides (pedogenic) on vertical faces of peds and 12 percent distinct gray (10YR 6/1), moist, silt coats on all faces of peds and 35 percent prominent clay films on all faces of peds and 35 percent distinct gray (N 5/0), moist, pressure faces on vertical 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 brown (7.5YR 4/4), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; clear smooth boundary. Lab sample # MU028476; observed in pit, small
    2Bt—244 to 366 centimeters (96.1 to 144.1 inches); yellowish brown (10YR 5/6) broken face Error; weak medium angular blocky, and weak coarse prismatic structure; very firm; 0.5 medium roots throughout; 10 percent distinct clay films on vertical 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 light greenish gray (10Y 7/1), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat subangular indurated 5-?-20 millimeter chert fragments and 4 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; clear smooth boundary.; observed in pit, small
    2C—366 to 488 centimeters (144.1 to 192.1 inches); yellowish brown (10YR 5/4) broken face silty clay loam; massive; very firm; 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix; fragments; abrupt smooth boundary.; observed in pit, small
    3Cr—488 to 518 centimeters (192.1 to 203.9 inches); 60 percent white (10YR 8/1) broken face and 20 percent very pale brown (10YR 8/3) broken face and 10 percent light reddish brown (2.5YR 6/4) broken face and 10 percent dusky red (2.5YR 3/2) broken face clay; massive; very firm; fragments.; observed in pit, small