IDENTIFIERS

  • Current Taxon Name (Soil Name): SM
  • OSD
  • Series Extent
  • User Site ID: 2007MO027055
  • User Pedon ID: 2007MO027055
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0702755
  • NCSS Pedon Lab Data NASIS Record ID - 30281
  • Print Date: 11/27/2024

    • 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: 38.9041111
  • Std. Longitude: -91.6440833
  • Datum: WGS84
  • Township: T48N
  • Range: R7W
  • Section: 25
  • PLSS Details: 1,171 feet West and 2,263 feet South from the North 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, Wyn Kelley, Greg Caldwell, Amber Marshaus
  • Current Taxonomic Class: Fine, smectitic, mesic Aeric Vertic Epiaqualfs
  • Current Taxon Kind: variant
  • Pedon Type: within range of map unit
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 55
  • Correlated Information:
  • Soil Name - SM
  • PSC - 0 to 0 cm.
  • Classificaton Date - 4/17/2012
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - aquic
  • Moisture Subclass - aeric
  • Sampled As Information:
  • Soil Name - MEXICO
  • Classificaton Date - 11/6/2006
  • 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 sedimentary rock over clayey residuum weathered from conglomerate
  • Landscape: till plain
  • Landform: divide
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: convex
  • Runoff: negligible
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: weakly coherent slight weathered conglomerate, unspecified at 358cm with 45 to <100 and a strike of 0 degrees and a dip of 0 to 0 degrees
  • Geology: Pre-illinoian Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/6/2006 (actual site observation date)
  • Air Photo ID: 38091h6se
  • Surface Water Kind: none observed
  • Microrelief Kind: microhigh
  • Microrelief Elevation: 0
  • 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

    bedrock, paralithic

    —

    —

    358 - 358

    363 - 442

    —

    - 79 -

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

    lithic contact

    paralithic contact

    358—358

    363—442

    —-

    —79—
    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

    —

    —

    249.9

    —

    267

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 30 centimeters (0.0 to 11.8 inches); very dark grayish brown (10YR 3/2) crushed silt loam; moderate fine subangular blocky structure; friable; 10.0 fine roots throughout; fragments; abrupt smooth boundary.; observed in push tube
    Bt1—30 to 46 centimeters (11.8 to 18.1 inches); brown (10YR 5/3) broken face silty clay; moderate fine subangular blocky structure; firm; 3.0 fine roots throughout; 35 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented red (2.5YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (10YR 5/1), moist, iron depletions with clear boundaries in matrix; fragments; abrupt smooth boundary.; observed in push tube
    Bt2—46 to 74 centimeters (18.1 to 29.1 inches); dark yellowish brown (10YR 4/4) broken face silty clay; moderate medium subangular blocky, and weak medium prismatic structure; firm; 3.0 fine roots throughout; 70 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish red (5YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary.; observed in push tube
    2Bx—74 to 145 centimeters (29.1 to 57.1 inches); yellowish brown (10YR 5/4) broken face silty clay loam; 72 percent silt; 28 percent clay; moderate fine subangular blocky, and moderate thin platy structure; firm; 35 percent faint clay films on vertical faces of peds; 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), 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 and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary.; observed in push tube
    3Btb—145 to 234 centimeters (57.1 to 92.1 inches); gray (2.5Y 6/1) broken face clay; 50 percent silt; 50 percent clay; moderate fine prismatic structure; very firm; 35 percent distinct pressure faces and 70 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 strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat subangular indurated 2-?-75 millimeter chert fragments; gradual smooth boundary.; observed in push tube
    3C—234 to 358 centimeters (92.1 to 140.9 inches); yellowish brown (10YR 5/6) broken face clay loam; 61 percent silt; 39 percent clay; massive; very firm; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), 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; 3 percent by volume nonflat subangular indurated 2-?-75 millimeter chert fragments.; observed in push tube