IDENTIFIERS

  • Current Taxon Name (Soil Name): Gravois
  • OSD
  • Series Extent
  • User Site ID: 1997MO131034M
  • User Pedon ID: 1997MO131034
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9713121
  • Print Date: 3/2/2025

    • 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: 38.2308693
  • Std. Longitude: -92.5196615
  • Datum: WGS84
  • Township: T40N
  • Range: R14W
  • Section: 7
  • PLSS Details: 2025 feet N and 2225 feet E of the SW corner
  • State: Missouri
  • County: MO131—Miller
  • MLRA: 116A—Ozark Highland

    • PEDON

  • Describers Name: DEV, DWW
  • Current Taxonomic Class: Fine-silty, mixed Oxyaquic Paleudalfs
  • Pedon Type: within range of map unit
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Gravois
  • Taxonomic Class - Fine-silty, mixed Oxyaquic Paleudalfs
  • Taxon Kind - series
  • PSC - 20 to 70 cm.
  • Classificaton Date - 3/24/1997
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: slope alluvium over pedisediment over residuum
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: shoulder
  • Slope Shape Across: linear
  • Slope Shape Down: convex
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/24/1997 (actual site observation date)
  • Air Photo ID: 8A
  • Surface Cover Properties:
  • 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

    ochric epipedon

    argillic horizon

    0—20

    20—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

    5

    —

    —

    258

    —

    287

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    —

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    A—0 to 10 centimeters (0.0 to 3.9 inches); grayish brown (10YR 5/2), light gray (10YR 7/2), dry; silt loam; moderate fine granular structure; very friable; 6.0 fine and medium roots; 2.0 fine and medium vesicular and tubular pores; fragments; very strongly acid, pH 4.5, hellige-truog; clear smooth boundary. Lab sample # MU018566
    E—10 to 20 centimeters (3.9 to 7.9 inches); brown (10YR 5/3) silt loam; moderate medium granular structure; friable; 6.0 fine and medium roots; 2.0 very fine and fine vesicular and tubular pores; 15 percent faint pale brown (10YR 6/3) silt coats on faces of peds; fragments; very strongly acid, pH 4.6, hellige-truog; clear smooth boundary. Lab sample # MU018567. patchy - phpvsfiid 126809; patchy - phpvsfiid 126809
    Bt1—20 to 36 centimeters (7.9 to 14.2 inches); strong brown (7.5YR 4/6) silt loam; moderate fine subangular blocky structure; friable; 2.0 fine and medium roots; 0.3 fine vesicular and tubular pores; 15 percent distinct strong brown (7.5YR 5/6) clay films on faces of peds; 5 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary. Lab sample # MU018568. patchy - phpvsfiid 126810; patchy - phpvsfiid 126810
    Bt2—36 to 56 centimeters (14.2 to 22.0 inches); strong brown (7.5YR 4/6) silty clay loam; moderate fine subangular blocky structure; firm; 0.5 fine and medium roots; 0.2 very fine and fine vesicular and tubular pores; 30 percent distinct strong brown (7.5YR 4/6) clay films on faces of peds; 7 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary. Lab sample # MU018569. patchy - phpvsfiid 126811; patchy - phpvsfiid 126811
    2Btx—56 to 71 centimeters (22.0 to 28.0 inches); yellowish brown (10YR 5/4) very gravelly silt loam; weak medium prismatic parts to weak fine subangular blocky structure; very firm; brittle; 0.3 fine roots; 2.0 fine and medium vesicular and tubular pores; 15 percent prominent light brownish gray (10YR 6/2) clay films on faces of peds and in pores and 50 percent faint light gray (10YR 7/1) silt coats on faces of peds; 50 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, hellige-truog; clear smooth boundary. Lab sample # MU018570. 20 percent brittleness in matrix.; discontinuous - phpvsfiid 126819; patchy - phpvsfiid 126820; discontinuous - phpvsfiid 126819; patchy - phpvsfiid 126820
    3Bt3—71 to 91 centimeters (28.0 to 35.8 inches); dark red (2.5YR 3/6) clay; moderate fine subangular blocky structure; firm; 0.2 fine roots; 0.2 fine and medium vesicular and tubular pores; 20 percent distinct dark reddish brown (2.5YR 3/4) clay films on faces of peds; 10 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.6, hellige-truog; gradual smooth boundary. Lab sample # MU018571. patchy - phpvsfiid 126821; patchy - phpvsfiid 126821
    3Bt4—91 to 142 centimeters (35.8 to 55.9 inches); dark red (2.5YR 3/6) gravelly clay; moderate medium subangular blocky structure; firm; 0.2 fine roots; 0.2 fine and medium vesicular and tubular pores; 20 percent distinct dark red (2.5YR 3/6) clay films on faces of peds; 30 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.6, hellige-truog; gradual smooth boundary. Lab sample # MU018572. discontinuous - phpvsfiid 126822; discontinuous - phpvsfiid 126822
    3Bt5—142 to 203 centimeters (55.9 to 79.9 inches); red (2.5YR 4/6) and 20 percent brown (7.5YR 5/2) very gravelly clay; moderate medium subangular blocky structure; firm; 0.2 fine and medium vesicular and tubular pores; 20 percent distinct red (2.5YR 4/6) clay films on faces of peds; 50 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.5, hellige-truog. Lab sample # MU018573. Chert lens horizon.; discontinuous - phpvsfiid 126823; discontinuous - phpvsfiid 126823