IDENTIFIERS

  • Current Taxon Name (Soil Name): MEXICO
  • OSD
  • Series Extent
  • User Site ID: 2005MO139055
  • User Pedon ID: 2005MO139055
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0513955
  • NCSS Pedon Lab Data NASIS Record ID - 30373
  • Print Date: 6/3/2024

    • 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: 38.8530556
  • Std. Longitude: -91.2925000
  • Datum: WGS84
  • Township: T47N
  • Range: R3W
  • Section: 7
  • PLSS Details: 2,637 feet West and 1,735 feet South from the North East corner
  • Country: US—United States
  • State: Missouri
  • County: MO139—Montgomery
  • MLRA: 113—Central Claypan Areas
  • Non-MLRA Soil Survey Area: MO603—Montgomery and Warren Counties, Missouri
  • 7.5 Minute USGS Quad: 38091-G3—Jonesburg, Missouri

    • PEDON

  • Describers Name: Mike Chalfant, Wyn Kelley, Bryan Mayhan, Greg Caldwell
  • Current Taxonomic Class: Fine, smectitic, mesic Vertic Argiaquolls
  • Current Taxon Kind: family
  • Pedon Type: map unit inclusion
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 55
  • Sampled As Information:
  • Soil Name - MEXICO
  • Taxonomic Class - Fine, smectitic, mesic Vertic Argiaquolls
  • PSC - 28 to 79 cm.
  • Classificaton Date - 4/20/2005
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - aquic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: till plain
  • Landform: divide
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Position: lower third
  • Slope Complexity: simple
  • Slope Shape Across: concave
  • Slope Shape Down: concave
  • Runoff: 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: 4/20/2005 (actual site observation date)
  • Air Photo ID: 38091g3ne
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • 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

    abrupt textural change

    —

    28 -

    - 1 -

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

    mollic epipedon

    argillic horizon

    abrupt textural change

    0—28

    28—549

    28—

    —28—

    —521—

    —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

    —

    —

    274.3

    —

    225

    —

    —

    —

    —

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    Ap—0 to 28 centimeters (0.0 to 11.0 inches); very dark grayish brown (10YR 3/2) rubbed silt loam; moderate fine granular structure; friable; 10.0 fine roots; 10.0 fine pores; fragments; abrupt smooth boundary. Lab sample # MU026737; observed in pit, small
    Btg—28 to 53 centimeters (11.0 to 20.9 inches); dark grayish brown (10YR 4/2) broken face silty clay; moderate very fine subangular blocky structure; firm; 3.0 fine roots; 10.0 fine pores; 40 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented red (2.5YR 5/6), 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; fragments; clear smooth boundary. Lab sample # MU026738; observed in pit, small
    Bt—53 to 81 centimeters (20.9 to 31.9 inches); dark yellowish brown (10YR 4/4) broken face silty clay; weak fine subangular blocky structure; firm; 3.0 fine roots; 10.0 fine pores; 40 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 grayish brown (10YR 5/2), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU026739; observed in pit, small
    Btg1—81 to 109 centimeters (31.9 to 42.9 inches); grayish brown (10YR 5/2) broken face silty clay loam; weak medium platy, and weak medium subangular blocky structure; firm; 3.0 fine roots; 10.0 fine pores; 30 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 yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary.; observed in pit, small
    2Btg2—109 to 152 centimeters (42.9 to 59.8 inches); grayish brown (10YR 5/2) broken face silt loam; weak thick platy structure; firm; 20 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 dark yellowish brown (10YR 4/4), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU026740; observed in pit, small
    2Btg3—152 to 198 centimeters (59.8 to 78.0 inches); grayish brown (10YR 5/2) broken face silty clay; weak coarse subangular blocky structure; firm; 10 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; fragments. Lab sample # MU026741; observed in pit, small
    2B—198 to 305 centimeters (78.0 to 120.1 inches); fragments.; observed in pit, small
    3Btg4—305 to 381 centimeters (120.1 to 150.0 inches); 75 percent gray (10YR 5/1) broken face and 25 percent yellowish brown (10YR 5/6) broken face silty clay; weak fine subangular blocky structure; very firm; 30 percent distinct clay films on all faces of peds; 1 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; gradual smooth boundary.; observed in pit, small
    3Btg4—381 to 488 centimeters (150.0 to 192.1 inches); 80 percent gray (10YR 5/1) broken face and 20 percent yellowish brown (10YR 5/6) broken face silty clay; weak fine subangular blocky structure; very firm; 30 percent distinct clay films on all faces of peds; 1 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; gradual smooth boundary.; observed in pit, small
    3Bt—488 to 518 centimeters (192.1 to 203.9 inches); yellowish brown (10YR 5/6) broken face clay; moderate fine subangular blocky structure; very firm; 30 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 (2.5Y 6/1), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; clear smooth boundary.; observed in pit, small
    3Btg—518 to 549 centimeters (203.9 to 216.1 inches); gray (2.5Y 6/1) broken face silty clay loam; moderate very fine subangular blocky structure; firm; 30 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; 1 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; clear smooth boundary.; observed in pit, small
    3Bt—549 to 579 centimeters (216.1 to 228.0 inches); yellowish brown (10YR 5/8) broken face silty clay loam; moderate very fine subangular blocky structure; firm; 15 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 (2.5Y 6/1), 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 pit, small
    3Ck1—579 to 701 centimeters (228.0 to 276.0 inches); 50 percent yellowish brown (10YR 5/6) broken face and 50 percent yellowish brown (10YR 5/4) broken face clay loam; massive; very firm; 10 percent prominent light gray (2.5Y 7/1), moist, skeletans on all faces of peds; 1 percent medium faint irregular noncoherent cemented gray (2.5Y 6/1), moist, iron depletions with clear boundaries in matrix; 5 percent carbonate masses; 2 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; strong effervescence, by hcl, 1n; gradual smooth boundary.; observed in pit, small
    3Ck2—701 to 853 centimeters (276.0 to 335.8 inches); yellowish brown (10YR 5/6) broken face clay loam; massive; very firm; 1 percent medium faint irregular noncoherent cemented gray (2.5Y 6/1), moist, iron depletions with clear boundaries in matrix; 5 percent carbonate masses; nonflat subrounded indurated 2-?-5 millimeter quartz fragments and 3 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; strong effervescence, by hcl, 1n; gradual smooth boundary.; observed in pit, small
    3C—853 to 1295 centimeters (335.8 to 509.8 inches); yellowish brown (10YR 5/6) broken face clay loam; massive; very firm; 1 percent medium faint irregular noncoherent cemented gray (2.5Y 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 carbonate masses; nonflat subrounded indurated 2-?-5 millimeter quartz fragments and nonflat subangular indurated 2-?-5 millimeter limestone, unspecified fragments and nonflat subrounded indurated 2-?-5 millimeter granite fragments and 5 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; slight effervescence, by hcl, 1n; diffuse smooth boundary.; observed in pit, small
    3Cd—1295 to 1676 centimeters (509.8 to 659.8 inches); 80 percent yellowish brown (10YR 5/6) broken face and 20 percent yellowish brown (10YR 5/4) broken face clay loam; massive; very firm; 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 and 1 percent medium faint irregular noncoherent cemented gray (2.5Y 6/1), moist, iron depletions with clear boundaries in matrix; 2 percent carbonate masses; nonflat subrounded indurated 2-?-5 millimeter quartz fragments and 5 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; slight effervescence, by hcl, 1n; abrupt smooth boundary.; observed in pit, small
    4C—1676 to 2301 centimeters (659.8 to 905.9 inches); very dark gray (N 3/0) broken face loam; massive; very firm; nonflat subrounded indurated 2-?-5 millimeter quartz fragments and nonflat subangular indurated 2-?-5 millimeter limestone, unspecified fragments and nonflat subrounded indurated 2-?-5 millimeter schist, unspecified fragments and 5 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; slight effervescence, by hcl, 1n; abrupt smooth boundary.; observed in pit, small
    4C—2301 to 2301 centimeters (905.9 to 905.9 inches); fragments.; observed in pit, small