IDENTIFIERS

  • Current Taxon Name (Soil Name): Gravois
  • OSD
  • Series Extent
  • User Site ID: 1994MO051029
  • User Pedon ID: 1994MO051029
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9405114
  • NCSS Pedon Lab Data NASIS Record ID - 34213
  • Print Date: 12/11/2024

    • 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: 38.3461357
  • Std. Longitude: -92.2179318
  • Datum: WGS84
  • Section: 35
  • Location Description: 300 'S, 1700'W f the NE cor. sec 35 T42N, R12W
  • State: Missouri
  • County: MO051—Cole
  • MLRA: 116B—Springfield Plain

    • PEDON

  • Describers Name: John L. Baker & Greg Caldwell
  • Current Taxon Kind: family
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Gravois
  • PSC - 15 to 66 cm.
  • Classificaton Date - 7/7/1994
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess derived from mixed and/or residuum weathered from sandstone and siltstone
  • Landscape: hills
  • Landform: ridge
  • Hill Slope Profile: summit
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/7/1994 (actual site observation date)
  • Air Photo ID: 4-77
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—15

    15—152

    —-

    —-
    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

    —

    —

    241

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); brown (10YR 4/3) silt loam; weak very fine granular structure; friable; 6.0 very fine roots; 6 percent manganese or iron-manganese stains; fragments; slightly acid, pH 6.1, hellige-truog; abrupt smooth boundary. Lab sample # MU049662
    Bt1—15 to 33 centimeters (5.9 to 13.0 inches); dark yellowish brown (10YR 4/4) silt loam; weak fine subangular blocky structure; friable; 3.0 very fine roots; 26 percent prominent silt coats on faces of peds and 26 percent prominent clay films on faces of peds; fragments; slightly acid, pH 6.3, hellige-truog; gradual smooth boundary. Lab sample # MU049663. Piezometer installed at top of this horizon.
    Bt2—33 to 51 centimeters (13.0 to 20.1 inches); dark yellowish brown (10YR 4/4) silty clay loam; moderate very fine subangular blocky structure; firm; 3.0 very fine roots; 15 percent prominent silt coats on vertical faces of peds and 55 percent prominent clay films on faces of peds; 1 percent fine noncoherent cemented iron-manganese masses; fragments; neutral, pH 6.7, hellige-truog; gradual smooth boundary. Lab sample # MU049664
    Bt3—51 to 74 centimeters (20.1 to 29.1 inches); dark yellowish brown (10YR 4/4) silty clay loam; weak medium subangular blocky structure; firm; 3.0 very fine roots; 10 percent prominent silt coats in root channels and/or pores and 26 percent prominent clay films on faces of peds; 1 percent fine noncoherent cemented iron-manganese masses; fragments; neutral, pH 6.9, hellige-truog; gradual smooth boundary. Lab sample # MU049665
    2Btx1—74 to 84 centimeters (29.1 to 33.1 inches); yellowish brown (10YR 5/4) silty clay loam; 15 percent grayish brown (10YR 5/2) fine distinct mottles; moderate medium subangular blocky structure; very firm; brittle; 3.0 very fine roots; 15 percent prominent silt coats on vertical faces of peds and 26 percent prominent clay films on vertical faces of peds; 1 percent fine noncoherent cemented iron-manganese masses; 5 percent by volume 2-39-75 millimeter unspecified fragments; neutral, pH 7.3, hellige-truog; gradual smooth boundary. Lab sample # MU049666. Piezometer installed at top of this horizon.
    3Btx2—84 to 114 centimeters (33.1 to 44.9 inches); 60 percent yellowish brown (10YR 5/4) and 40 percent grayish brown (10YR 5/2) extremely gravelly silt loam; weak coarse subangular blocky structure; very firm; brittle; 26 percent prominent silt coats on vertical faces of peds and 26 percent prominent clay films on faces of peds; 15 percent fine noncoherent cemented strong brown (7.5YR 4/6) masses of oxidized iron; 10 percent by volume 75-162-250 millimeter unspecified fragments and 60 percent by volume 2-39-75 millimeter unspecified fragments; neutral, pH 7.3, hellige-truog; gradual smooth boundary. Lab sample # MU049667. Piezometer installed at top of this horizon.
    3Btx3—114 to 152 centimeters (44.9 to 59.8 inches); strong brown (7.5YR 4/6) extremely gravelly silt loam; weak coarse subangular blocky structure; very firm; brittle; 15 percent prominent silt coats on vertical faces of peds and 26 percent prominent clay films on faces of peds; 5 percent by volume 75-162-250 millimeter unspecified fragments and 55 percent by volume 2-39-75 millimeter unspecified fragments; neutral, pH 7.3, hellige-truog; gradual smooth boundary. Lab sample # MU049668
    4Bt—152 to 203 centimeters (59.8 to 79.9 inches); 40 percent dark red (2.5YR 3/6) and 60 percent yellowish brown (10YR 5/4) extremely gravelly silty clay loam; moderate fine subangular blocky structure; very firm; 60 percent prominent brown (10YR 5/3) silt coats on faces of peds and 60 percent prominent reddish brown (2.5YR 4/4) clay films on vertical faces of peds; 5 percent by volume 75-162-250 millimeter limestone, cherty fragments and 10 percent by volume 250-425-600 millimeter limestone, cherty fragments and 60 percent by volume 2-39-75 millimeter limestone, cherty fragments; slightly acid, pH 6.4, hellige-truog; gradual wavy boundary. Lab sample # MU049669. continuous - phpvsfiid 146956; continuous - phpvsfiid 146957; continuous - phpvsfiid 146956; continuous - phpvsfiid 146957