IDENTIFIERS

  • Current Taxon Name (Soil Name): CLAFORK
  • OSD
  • Series Extent
  • User Site ID: 1992MO053005
  • User Pedon ID: 1992MO053005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9205305
  • NCSS Pedon Lab Data NASIS Record ID - 28785
  • Print Date: 2/16/2025

    • 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: 38.7632500
  • Std. Longitude: -92.7726389
  • Datum: WGS84
  • Township: T46N
  • Range: R17W
  • Section: 10
  • PLSS Details: 2,458 feet East and 1,949 feet North from the South West corner
  • Location Description: The original site location was T. 47 N, R. 17 W, Sec. 10. T was changed to 46 N to match the soil series and topo sheet attached to old pedon description.
  • Country: US—United States
  • State: Missouri
  • County: MO053—Cooper
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO053—Cooper County, Missouri
  • 7.5 Minute USGS Quad: 38092-G7—Bunceton, Missouri

    • PEDON

  • Describers Name: J L Baker, David Skaer, Greg Caldwell, Aaron Woods
  • Current Taxonomic Class: Fine-silty, smectitic, mesic Aquertic Hapludalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 5
  • Correlated Information:
  • Soil Name - CLAFORK
  • PSC - 43 to 94 cm.
  • Classificaton Date - 2/1/2012
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - CLAFORK
  • Classificaton Date - 2/6/1992
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: fine-silty loess derived from mixed over clayey residuum weathered from limestone
  • Landscape: hills
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • 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: 2/6/1992 (actual site observation date)
  • Air Photo ID: 38092g7se
  • 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 gully
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    albic horizon

    argillic horizon

    fragic soil properties

    0—20

    20—36

    43—165

    81—165

    —20—

    —16—

    —122—

    —84—
    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

    —

    —

    261.8

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 20 centimeters (0.0 to 7.9 inches); very dark grayish brown (10YR 3/2) interior, grayish brown (10YR 5/2) interior, dry; silt loam; moderate fine granular structure; friable; 10.0 very fine roots; fragments; clear smooth boundary. Lab sample # MU044458; observed in push tube
    E—20 to 36 centimeters (7.9 to 14.2 inches); brown (10YR 5/3) interior silt loam; weak fine subangular blocky structure; friable; 10.0 coarse roots; 18 percent distinct silt coats on all faces of peds and 75 percent prominent organic stains on surfaces along root channels; 1 percent medium faint irregular noncoherent cemented iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU044459; observed in push tube
    BE—36 to 43 centimeters (14.2 to 16.9 inches); yellowish brown (10YR 5/4) interior silt loam; moderate fine subangular blocky structure; friable; 3.0 coarse roots; 18 percent distinct organic stains on surfaces along root channels and 18 percent distinct silt coats on all faces of peds; 1 percent medium faint irregular noncoherent cemented iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU044460; observed in push tube
    Bt1—43 to 56 centimeters (16.9 to 22.0 inches); yellowish brown (10YR 5/4) interior silty clay loam; moderate fine subangular blocky structure; firm; 3.0 medium roots; 18 percent distinct silt coats on surfaces along root channels and 35 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU044461; observed in push tube
    Bt2—56 to 81 centimeters (22.0 to 31.9 inches); 50 percent grayish brown (10YR 5/2) interior and 50 percent yellowish brown (10YR 5/4) interior silty clay loam; strong fine subangular blocky structure; firm; 3.0 fine roots; 18 percent distinct silt coats on surfaces along root channels and 75 percent prominent clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU044462; observed in push tube
    2Btx1—81 to 107 centimeters (31.9 to 42.1 inches); grayish brown (10YR 5/2) interior silt loam; moderate medium prismatic structure; firm; 0.5 fine roots; 35 percent distinct silt coats on surfaces along root channels and 75 percent prominent clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU044463; observed in push tube
    2Btx2—107 to 150 centimeters (42.1 to 59.1 inches); 50 percent grayish brown (10YR 5/2) interior and 50 percent yellowish brown (10YR 5/4) interior silt loam; moderate coarse prismatic structure; firm; 0.5 fine roots; 35 percent distinct silt coats on surfaces along root channels and 75 percent prominent clay films on vertical faces of peds; 1 percent medium faint irregular noncoherent cemented iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU044464; observed in push tube
    3Btx—150 to 165 centimeters (59.1 to 65.0 inches); 50 percent yellowish brown (10YR 5/6) interior and 50 percent grayish brown (10YR 5/2) interior very gravelly silt loam; moderate medium subangular blocky structure; firm; 0.5 very fine roots; 18 percent distinct silt coats on all faces of peds and 35 percent prominent clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented iron depletions with clear boundaries in matrix; 10 percent by volume very strongly coherent cemented chert fragments and 40 percent by volume nonflat very strongly coherent cemented 2-?-75 millimeter chert fragments. Lab sample # MU044465; observed in push tube