IDENTIFIERS

  • Current Taxon Name (Soil Name): Tilk
  • OSD
  • Series Extent
  • User Site ID: 2004MO179001M
  • User Pedon ID: 2004MO179001M
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0417901
  • NCSS Pedon Lab Data NASIS Record ID - 30453
  • Print Date: 12/7/2025

    • 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: 37.2037917
  • Std. Longitude: -91.4213056
  • Datum: WGS84
  • Township: T33N
  • Range: R3W
  • Section: 15
  • PLSS Details: SW 1/4 of the SW 1/4
  • State: Missouri
  • County: MO179—Reynolds
  • MLRA: 116A—Ozark Highland

    • PEDON

  • Describers Name: Rod Talyor, leon Thompson
  • Current Taxonomic Class: Loamy-skeletal, siliceous, active, mesic Mollic Hapludalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: technical soil services
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Tilk
  • PSC - 89 to 139 cm.
  • Classificaton Date - 12/20/2016
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Tilk
  • Taxonomic Class - Loamy-skeletal, siliceous, active, mesic Ultic Hapludalfs
  • Taxon Kind - series
  • PSC - 89 to 139 cm.
  • Classificaton Date - 1/25/2011
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: gravelly alluvium derived from chert
  • Landscape: valley
  • Landform: stream terrace
  • Hill Slope Profile: toeslope
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: moderately well
  • Geology: Gasconade formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/25/2011 (entry creation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - pastureland, tame
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    0—30

    61—203

    —-

    —-
    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

    4

    —

    —

    356.6

    —

    70

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 30 centimeters (0.0 to 11.8 inches); very dark grayish brown (10YR 3/2) interior gravelly loam; 8 percent clay; moderate medium granular, and moderate coarse granular structure; very friable; many very fine roots throughout and common very coarse roots throughout and many fine roots throughout and common coarse roots throughout; many very fine moderate-continuity interstitial and many fine moderate-continuity interstitial pores; 30 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; strongly acid, pH 5.4; clear smooth boundary. Lab sample # MU026064; moist when described;
    AB—30 to 61 centimeters (11.8 to 24.0 inches); brown (10YR 4/3) interior very gravelly sandy loam; 23 percent clay; moderate medium subangular blocky structure; friable; many very fine roots throughout and many very fine roots throughout and few medium roots throughout and few coarse roots throughout; many very fine moderate-continuity tubular and common medium moderate-continuity tubular and many fine moderate-continuity tubular and few coarse moderate-continuity tubular pores; 15 percent dark grayish brown (10YR 4/2), moist, clay films on rock fragments; 50 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; moderately acid, pH 5.7; gradual wavy boundary. Lab sample # MU026065; moist when described;
    BA—61 to 89 centimeters (24.0 to 35.0 inches); brown (10YR 4/3) interior very gravelly coarse sandy loam; 23 percent clay; weak fine subangular blocky structure; friable; common very fine roots throughout and common fine roots throughout; many fine moderate-continuity tubular and many fine moderate-continuity tubular pores; 15 percent dark grayish brown (10YR 4/2), moist, clay films on rock fragments; 3 percent by volume nonflat indurated 75-?-250 millimeter chert fragments and 55 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; slightly acid, pH 6.3; gradual wavy boundary. Lab sample # MU026066; moist when described;
    Bt1—89 to 122 centimeters (35.0 to 48.0 inches); dark yellowish brown (10YR 4/4) interior very gravelly silt loam; 30 percent clay; moderate medium subangular blocky structure; firm; few fine roots throughout; common medium moderate-continuity tubular and many fine moderate-continuity tubular pores; 15 percent brown (10YR 4/3), moist, clay films on all faces of peds; 1 percent by volume nonflat indurated 75-?-250 millimeter chert fragments and 45 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; slightly acid, pH 6.4; gradual smooth boundary. Lab sample # MU026067; moist when described;
    Bt2—122 to 152 centimeters (48.0 to 59.8 inches); brown (7.5YR 4/4) interior very gravelly loam; 32 percent clay; weak fine subangular blocky structure; firm; few very fine roots throughout and few fine roots throughout; many fine moderate-continuity tubular pores; 15 percent dark brown (7.5YR 3/4), moist, clay films on all faces of peds; 45 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; neutral, pH 6.6; gradual wavy boundary. Lab sample # MU026068; moist when described;
    Bt3—152 to 183 centimeters (59.8 to 72.0 inches); brown (7.5YR 4/4) interior very gravelly sandy clay loam; 30 percent clay; weak fine subangular blocky structure; firm; many fine moderate-continuity tubular pores; 15 percent brown (7.5YR 4/3), moist, clay films on rock fragments; 45 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; neutral, pH 6.6; clear smooth boundary. Lab sample # MU026069; moist when described;
    Bt4—183 to 203 centimeters (72.0 to 79.9 inches); brown (7.5YR 4/4) interior very gravelly sandy clay loam; 30 percent clay; weak fine subangular blocky structure; firm; many fine moderate-continuity tubular pores; 15 percent brown (7.5YR 4/4), moist, clay films on rock fragments; 5 percent by volume nonflat indurated 75-?-250 millimeter chert fragments and 50 percent by volume nonflat indurated 2-?-75 millimeter chert fragments; neutral, pH 7.0. Lab sample # MU026070; moist when described;