IDENTIFIERS

  • Current Taxon Name (Soil Name): Mexico
  • OSD
  • Series Extent
  • User Site ID: 2005MO113052
  • User Pedon ID: 2005MO113052
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0511352
  • NCSS Pedon Lab Data NASIS Record ID - 30887
  • Print Date: 11/12/2024

    • 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: 38.9752769
  • Std. Longitude: -91.0066681
  • Datum: WGS84
  • Township: T49N
  • Range: R1W
  • Section: 27
  • PLSS Details: 1,442 feet East and 50 feet North from the South West corner
  • Location Description: Near junction of Hiway 47 and Rt. J west of Troy
  • Map Unit: 35B—Mexico silt loam, 1 to 5 percent slopes
  • Country: US—United States
  • State: Missouri
  • County: MO113—Lincoln
  • MLRA: 113—Central Claypan Areas
  • Regional Office: NC—North Central
  • Non-MLRA Soil Survey Area: MO113—Lincoln County, Missouri
  • 7.5 Minute USGS Quad: 38091-H1—Warrenton NE, Missouri

    • PEDON

  • Describers Name: Mike Chalfant, Wyn Kelley, Greg Caldwell
  • Current Taxonomic Class: Fine, smectitic, mesic Aeric Vertic Epiaqualfs
  • Current Taxon Kind: family
  • 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 - 0 to 0 cm.
  • Classificaton Date - 4/19/2005
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - aquic
  • Moisture SUBClass - aeric
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: fine-silty loess derived from mixed
  • Landscape: till plain
  • Landform: interfluve
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: concave
  • Slope Shape Down: concave
  • Runoff: medium
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/19/2005 (actual site observation date)
  • Air Photo ID: 38091h1ne
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - other
  • Site Obs. Cover Kind 2 - rural transportation
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—13

    13—183

    11—13—15

    168—170—172
    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

    —

    —

    196

    —

    180

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 13 centimeters (0.0 to 5.1 inches); very dark grayish brown (10YR 3/2) rubbed silt loam; moderate fine subangular blocky structure; friable; 10.0 fine roots; 10.0 fine tubular pores; fragments; abrupt smooth boundary. Lab sample # MU026590; observed in push tube
    Btg—13 to 23 centimeters (5.1 to 9.1 inches); dark grayish brown (10YR 4/2) broken face silty clay loam; moderate fine subangular blocky structure; firm; 3.0 fine roots; 3.0 fine tubular pores; 20 percent distinct very dark grayish brown (10YR 3/2), moist, organic stains on all faces of peds and 40 percent distinct clay films on all faces of peds; 5 percent fine prominent black (10YR 2/1), moist, manganese masses and 15 percent fine prominent strong brown (7.5YR 5/6), moist, masses of oxidized iron; fragments; clear smooth boundary. Lab sample # MU026591; observed in push tube
    Bt1—23 to 61 centimeters (9.1 to 24.0 inches); dark yellowish brown (10YR 4/4) broken face silty clay loam; moderate fine subangular blocky structure; firm; 3.0 fine roots; 40 percent distinct clay films on all faces of peds; 5 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions and 10 percent fine prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; clear smooth boundary. Lab sample # MU026592; observed in push tube
    Bt2—61 to 102 centimeters (24.0 to 40.2 inches); yellowish brown (10YR 5/4) broken face clay; weak fine subangular blocky structure; firm; 3.0 fine roots; 10 percent distinct very dark grayish brown (10YR 3/2), moist, clay films on all faces of peds and 30 percent distinct dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds; 10 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions and 30 percent medium faint yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; clear smooth boundary. Lab sample # MU026593; observed in push tube
    2Bt3—102 to 183 centimeters (40.2 to 72.0 inches); 75 percent yellowish brown (10YR 5/6) broken face and 25 percent grayish brown (10YR 5/2) broken face silty clay loam; weak medium subangular blocky, and weak coarse prismatic structure; firm; 30 percent distinct clay films on all faces of peds; 5 percent fine prominent black (10YR 2/1), moist, manganese coatings and 15 percent medium distinct strong brown (7.5YR 5/8), moist, masses of oxidized iron; fragments; clear smooth boundary. Lab sample # MU026594; observed in push tube
    2CB—183 to 259 centimeters (72.0 to 102.0 inches); 60 percent yellowish brown (10YR 5/6) broken face and 40 percent gray (10YR 6/1) broken face clay; weak coarse subangular blocky structure; firm; 5 percent fine distinct yellowish red (5YR 4/6), moist, masses of oxidized iron; 5 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; diffuse smooth boundary. Lab sample # MU026595; observed in push tube
    2Cd—259 to 320 centimeters (102.0 to 126.0 inches); dark yellowish brown (10YR 4/4) broken face clay loam; massive; very firm; 5 percent fine prominent gray (10YR 6/1), moist, iron depletions and 10 percent fine distinct yellowish brown (10YR 5/6), moist, masses of oxidized iron and 70 percent fine prominent black (10YR 2/1), moist, manganese coatings; 4 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; abrupt smooth boundary. Lab sample # MU64772; observed in push tube
    2Cdk—320 to 351 centimeters (126.0 to 138.2 inches); dark yellowish brown (10YR 4/6) broken face clay loam; massive; very firm; 5 percent fine distinct yellowish brown (10YR 5/8), moist, masses of oxidized iron and 70 percent fine prominent black (10YR 2/1), moist, manganese coatings; 2 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; strong effervescence, by hcl, 1n. Lab sample # MU64773; observed in push tube
    2C—351 to 442 centimeters (138.2 to 174.0 inches); fragments. Lab sample # MU64774; observed in push tube
    3Bt—442 to 747 centimeters (174.0 to 294.1 inches); dark red (2.5YR 3/6) rubbed gravelly clay; weak medium subangular blocky structure; very firm; 15 percent distinct pressure faces and 30 percent distinct clay films on all faces of peds; 5 percent fine prominent light gray (5Y 7/1), moist, iron depletions; 15 percent by volume nonflat subangular indurated 2-?-75 millimeter chert fragments. Lab sample # MU64775; observed in push tube