IDENTIFIERS

  • Current Taxon Name (Soil Name): Secesh
  • OSD
  • Series Extent
  • User Site ID: 2007MO179020M
  • User Pedon ID: 2007MO179020
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0717920
  • Print Date: 5/19/2024

    • 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: 37.5610889
  • Std. Longitude: -90.8566250
  • Datum: WGS84
  • Township: T33N
  • Range: R2E
  • Section: 8
  • PLSS Details: 1136 feet E and 187 feet S of the NW 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: Keith Knelle, Jennifer Pellett, Leon Thompson, John Horton
  • Current Taxonomic Class: Fine-silty, mixed, active, mesic Aquic Argiudolls
  • Pedon Type: map unit inclusion
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 20
  • Sampled As Information:
  • Soil Name - Secesh
  • Taxonomic Class - Fine-silty, mixed, active, mesic Aquic Argiudolls
  • Taxon Kind - series
  • PSC - 20 to 70 cm.
  • Classificaton Date - 2/27/2007
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: silty alluvium derived from mixed over gravelly alluvium derived from cherty limestone
  • Landscape: river valley
  • Landform: terrace
  • Geomorphic Component Terraces: tread
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: somewhat poorly
  • Flooding: very rare flooding for extremely brief periods
  • Ponding: none ponding
  • Geology: Bonneterre Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/27/2007 (actual site observation date)
  • Air Photo ID: 37090e7sw
  • Surface Water Kind: flooded
  • Surface Water Depth: 15
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree 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 sheet
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    0—56

    20—203

    —56—

    —183—
    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

    5

    —

    —

    274.3

    —

    24

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark grayish brown (10YR 3/2) rubbed silt loam; weak fine subangular blocky, and weak medium subangular blocky structure; friable; 10.0 very fine roots throughout and 10.0 very fine roots throughout and 0.5 coarse roots throughout; 0.5 fine moderate-continuity interstitial pores; fragments; gradual smooth boundary. Lab sample # MU006704; observed in pit, small
    Bt1—20 to 56 centimeters (7.9 to 22.0 inches); very dark gray (10YR 3/1) interior silty clay loam; moderate fine subangular blocky structure; firm; 10.0 very fine roots throughout and 0.5 medium roots throughout and 10.0 fine roots throughout; 3.0 fine moderate-continuity tubular pores; 35 percent faint very dark grayish brown (10YR 3/2), moist, clay films on all faces of peds; 1 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; clear smooth boundary. Lab sample # MU006705; observed in pit, small
    Bt2—56 to 86 centimeters (22.0 to 33.9 inches); 50 percent dark grayish brown (10YR 4/2) interior and 50 percent brown (10YR 4/3) interior silty clay loam; moderate fine subangular blocky, and moderate medium subangular blocky structure; firm; 3.0 very fine roots throughout and 0.5 medium roots throughout and 3.0 fine roots throughout; 0.5 medium tubular and 0.5 fine tubular pores; 12 percent faint dark grayish brown (10YR 4/2), moist, 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; 3 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; gradual wavy boundary. Lab sample # MU006706; observed in pit, small
    Bt3—86 to 132 centimeters (33.9 to 52.0 inches); 70 percent brown (10YR 4/3) interior and 30 percent dark gray (10YR 4/1) interior silty clay loam; moderate fine subangular blocky, and moderate medium angular blocky structure; firm; 0.5 very fine roots throughout; 3.0 fine interstitial pores; 12 percent faint very dark grayish brown (10YR 3/2), moist, 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 dark reddish brown (5YR 3/4), 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; 8 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; gradual wavy boundary. Lab sample # MU006707; observed in pit, small
    2Bt4—132 to 150 centimeters (52.0 to 59.1 inches); brown (7.5YR 4/4) interior very gravelly clay loam; strong medium angular blocky structure; very firm; 0.5 very fine roots throughout; 3.0 fine interstitial pores; 70 percent prominent grayish brown (10YR 5/2), moist, clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented gray (10YR 5/1), 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 and 1 percent medium faint irregular noncoherent cemented very dark brown (10YR 2/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subrounded indurated 75-?-250 millimeter chert fragments and 45 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments; gradual wavy boundary. Lab sample # MU006708; observed in pit, small
    3Bt5—150 to 203 centimeters (59.1 to 79.9 inches); yellowish brown (10YR 5/6) interior very gravelly silty clay loam; moderate medium angular blocky, and moderate medium prismatic structure; firm; 0.5 very fine roots throughout; 0.5 fine moderate-continuity tubular pores; 12 percent faint yellowish brown (10YR 5/6), moist, clay films on all faces of peds and 70 percent prominent grayish brown (10YR 5/2), moist, 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 strong brown (7.5YR 5/8), 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 subrounded indurated 250-?-600 millimeter chert fragments and 2 percent by volume nonflat subrounded indurated 75-?-250 millimeter chert fragments and 45 percent by volume nonflat subrounded indurated 2-?-75 millimeter chert fragments. Lab sample # MU006709; observed in pit, small