IDENTIFIERS

  • Current Taxon Name (Soil Name): MEXICO
  • OSD
  • Series Extent
  • User Site ID: 2007MO13952
  • User Pedon ID: 2007MO13952
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0713952
  • NCSS Pedon Lab Data NASIS Record ID - 45483
  • 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: 38.8057500
  • Std. Longitude: -91.6397500
  • Datum: WGS84
  • Township: T47N
  • Range: R6W
  • Section: 30
  • PLSS Details: 1,172 feet East and 151 feet North from the South West corner
  • Country: US—United States
  • State: Missouri
  • County: MO139—Montgomery
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: MO603—Montgomery and Warren Counties, Missouri
  • 7.5 Minute USGS Quad: 38091-G6—Readsville, 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: within range of map unit
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 52
  • Sampled As Information:
  • Soil Name - MEXICO
  • Taxonomic Class - Fine, smectitic, mesic Aeric Vertic Epiaqualfs
  • PSC - 10 to 61 cm.
  • Classificaton Date - 3/27/2007
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - aquic
  • Moisture SUBClass - aeric
  • Dynamic Soil Properties:
  • Erosion Class - 3
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: fine-silty loess derived from mixed over clayey pedisediment derived from mixed over clayey till derived from mixed
  • Landscape: till plain
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: concave
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: moderately coherent moderate weathered conglomerate, unspecified at 549cm with <10 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: 3/27/2007 (actual site observation date)
  • Air Photo ID: 38091g6se
  • 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 sheet
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

    —

    549 - 549

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

    ochric epipedon

    argillic horizon

    lithologic discontinuity

    lithologic discontinuity

    lithic contact

    0—10

    10—549

    137—137

    152—152

    549—549

    —10—

    —539—

    —1—

    —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

    2

    —

    —

    262.7

    —

    108

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 10 centimeters (0.0 to 3.9 inches); very dark grayish brown (10YR 3/2) rubbed silt loam; weak fine subangular blocky 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; fragments; noneffervescent, by hcl, 1n; abrupt smooth boundary.; observed in push tube
    Bt—10 to 137 centimeters (3.9 to 53.9 inches); yellowish brown (10YR 5/4) broken face silty clay loam; strong fine subangular blocky, and moderate medium prismatic structure; firm; 2.0 very fine roots throughout and 2.0 fine roots throughout; 2.0 very fine tubular and 2.0 fine tubular pores; 35 percent distinct clay films on all faces of peds and 70 percent prominent light gray (10YR 7/1), moist, skeletans 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 yellowish brown (10YR 5/8), 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; fragments; noneffervescent, by hcl, 1n; gradual smooth boundary.; observed in push tube
    2B/Eb—137 to 152 centimeters (53.9 to 59.8 inches); dark yellowish brown (10YR 4/4) broken face silty clay loam; moderate fine subangular blocky structure; firm; 3.0 fine tubular pores; 35 percent prominent light gray (10YR 7/1), moist, skeletans on all faces of peds; 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 dark grayish brown (10YR 4/2), 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; abrupt smooth boundary.; observed in push tube
    3Btssgb—152 to 203 centimeters (59.8 to 79.9 inches); 60 percent gray (2.5Y 5/1) broken face and 40 percent reddish brown (2.5YR 4/4) broken face silty clay; strong fine subangular blocky, and weak coarse prismatic structure; very firm; 0.5 fine tubular pores; 12 percent distinct slickensides (pedogenic) on all faces of peds and 35 percent distinct pressure faces on all faces of peds and 70 percent prominent 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; 1 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; noneffervescent, by hcl, 1n; clear smooth boundary.; observed in push tube
    3Btgb1—203 to 305 centimeters (79.9 to 120.1 inches); olive gray (5Y 5/2) broken face silty clay; strong fine subangular blocky, and weak coarse prismatic structure; very firm; 3.0 fine tubular pores; 35 percent distinct pressure faces on all faces of peds and 70 percent prominent 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 yellowish brown (10YR 5/4), 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; 1 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; noneffervescent, by hcl, 1n; clear smooth boundary.; observed in push tube
    3Btgb2—305 to 457 centimeters (120.1 to 179.9 inches); light olive gray (5Y 6/2) broken face silty clay; weak fine subangular blocky, and weak medium subangular blocky structure; very firm; 0.5 very fine tubular pores; 12 percent distinct clay films on all faces of peds and 12 percent distinct pressure faces on all faces of peds; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/8), 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; noneffervescent, by hcl, 1n; clear smooth boundary.; observed in push tube
    3Btb—457 to 549 centimeters (179.9 to 216.1 inches); yellowish brown (10YR 5/6) broken face silty clay loam; weak medium subangular blocky, and weak fine subangular blocky, and weak coarse prismatic structure; very firm; 0.5 very fine tubular pores; 12 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/8), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), 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; noneffervescent, by hcl, 1n.; observed in push tube