IDENTIFIERS

  • Current Taxon Name (Soil Name): Tilk
  • OSD
  • Series Extent
  • User Site ID: 2007MO179004M
  • User Pedon ID: 2007MO179004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0717904
  • 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: 37.5483667
  • Std. Longitude: -90.8474583
  • Datum: WGS84
  • Township: T33N
  • Range: R2E
  • Section: 8
  • PLSS Details: 1364 feet W and 407 feet N of the SE corner
  • Country: US—United States
  • State: Missouri
  • County: MO179—Reynolds
  • MLRA: 116C—St. Francois Knobs and Basins
  • Non-MLRA Soil Survey Area: MO179—Reynolds County, Missouri
  • 7.5 Minute USGS Quad: 37090-E7—Johnson Shut-ins, Missouri

    • PEDON

  • Describers Name: Leon Thompson, Jennifer Pellett, John Horton, Dennis Meinert
  • Current Taxonomic Class: Loamy-skeletal, siliceous, semiactive, mesic Ultic Hapludalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 4
  • Correlated Information:
  • Soil Name - Tilk
  • PSC - 48 to 98 cm.
  • Classificaton Date - 4/17/2012
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Tilk
  • Taxon Kind - series
  • PSC - 48 to 98 cm.
  • Classificaton Date - 1/22/2007
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: sandy and gravelly alluvium derived from igneous and sedimentary rock over gravelly alluvium derived from igneous and sedimentary rock over sandy and gravelly alluvium derived from igneous and sedimentary rock
  • Landscape: river valley
  • Landform: terrace
  • Geomorphic Component Hills: base slope
  • Geomorphic Component Terraces: tread
  • Hill Slope Profile: toeslope
  • Slope Position: lower third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: very low
  • Drainage Class: somewhat excessively
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Bonneterre Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/22/2007 (actual site observation date)
  • Air Photo ID: 37090e7sw
  • 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 Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    15—48

    48—180

    —33—

    —132—
    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

    —

    —

    261.8

    —

    110

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    C—0 to 15 centimeters (0.0 to 5.9 inches); 50 percent brown (10YR 4/3) interior and 30 percent dark grayish brown (10YR 4/2) interior and 20 percent yellowish brown (10YR 5/4) interior gravelly loamy coarse sand; single grain; loose; 3.0 fine roots throughout; 10.0 fine interstitial pores; 5 percent by volume nonflat subrounded very strongly coherent cemented 2-?-75 millimeter rhyolite fragments and 10 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; abrupt smooth boundary. Lab sample # MU007435; observed in pit, small
    Apb—15 to 33 centimeters (5.9 to 13.0 inches); dark brown (10YR 3/3) rubbed very gravelly sandy loam; weak fine granular structure; friable; 3.0 very coarse roots throughout and 10.0 medium roots throughout and 10.0 fine roots throughout and 10.0 coarse roots throughout; 10.0 medium irregular and 10.0 fine irregular pores; 35 percent prominent very dark grayish brown (10YR 3/2), moist, organic stains on surfaces along root channels; 1 percent by volume nonflat subrounded indurated 75-?-250 millimeter chert fragments and 1 percent by volume nonflat subrounded very strongly coherent cemented 75-?-250 millimeter rhyolite fragments and 5 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter sandstone, unspecified fragments and 30 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; clear smooth boundary. Lab sample # MU007436; observed in pit, small
    Ab—33 to 48 centimeters (13.0 to 18.9 inches); dark brown (10YR 3/3) interior very gravelly coarse sandy loam; moderate fine granular structure; firm; 0.5 very coarse roots throughout and 10.0 medium roots throughout and 10.0 fine roots throughout and 10.0 coarse roots throughout; 0.5 medium irregular and 10.0 fine irregular pores; 35 percent prominent very dark grayish brown (10YR 3/2), moist, organic stains on surfaces along root channels; 10 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter sandstone, unspecified fragments and 40 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; clear smooth boundary. Lab sample # MU007437; observed in pit, small
    2Btb1—48 to 79 centimeters (18.9 to 31.1 inches); dark yellowish brown (10YR 4/6) interior extremely gravelly loam; weak fine subangular blocky structure; friable; 3.0 medium roots throughout and 3.0 fine roots throughout and 0.5 coarse roots throughout; 10.0 medium tubular and 10.0 fine tubular pores; 35 percent prominent dark brown (10YR 3/3), moist, organic stains on surfaces along root channels; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subrounded strongly coherent cemented 75-?-250 millimeter sandstone, unspecified fragments and 8 percent by volume nonflat subrounded indurated 75-?-250 millimeter chert fragments and 10 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter sandstone, unspecified fragments and 45 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; clear wavy boundary. Lab sample # MU007438; observed in pit, small
    3Btb2—79 to 97 centimeters (31.1 to 38.2 inches); brown (7.5YR 4/4) interior extremely gravelly loam; weak fine subangular blocky structure; friable; 0.5 medium roots throughout and 0.5 fine roots throughout and 0.5 coarse roots throughout; 10.0 medium tubular and 10.0 fine tubular pores; 35 percent faint brown (7.5YR 4/4), moist, clay films; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat subrounded very strongly coherent cemented 2-?-75 millimeter rhyolite fragments and 5 percent by volume nonflat subrounded indurated 75-?-250 millimeter chert fragments and 5 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter sandstone, unspecified fragments and 54 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; clear wavy boundary. Lab sample # MU007439; observed in pit, small
    3Btb3—97 to 122 centimeters (38.2 to 48.0 inches); brown (7.5YR 4/4) interior gravelly fine sandy loam; weak fine subangular blocky structure; friable; 0.5 medium roots throughout and 0.5 fine roots throughout; 10.0 medium tubular and 10.0 fine tubular pores; 15 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; clear smooth boundary. Lab sample # MU007440; observed in pit, small
    4Btb4—122 to 150 centimeters (48.0 to 59.1 inches); brown (7.5YR 4/4) interior extremely gravelly coarse sandy loam; weak fine subangular blocky structure; firm; 0.5 medium roots throughout and 3.0 fine roots throughout; 3.0 medium tubular and 10.0 fine tubular and 0.5 coarse tubular pores; 35 percent faint brown (7.5YR 4/4), moist, clay films; 3 percent by volume nonflat subrounded very strongly coherent cemented 2-?-75 millimeter rhyolite fragments and 10 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter sandstone, unspecified fragments and 55 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; clear smooth boundary. Lab sample # MU007441; observed in pit, small
    5Btb5—150 to 180 centimeters (59.1 to 70.9 inches); brown (7.5YR 4/4) interior extremely gravelly sandy clay loam; weak fine subangular blocky structure; firm; 0.5 medium roots throughout and 0.5 fine roots throughout; 0.5 medium interstitial and 10.0 fine interstitial pores; 35 percent faint brown (7.5YR 4/4), moist, clay films; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat subrounded very strongly coherent cemented 2-?-75 millimeter rhyolite fragments and 5 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter sandstone, unspecified fragments and 60 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments. Lab sample # MU007442; observed in pit, small