IDENTIFIERS

  • Current Taxon Name (Soil Name): Gravois
  • OSD
  • Series Extent
  • User Site ID: 1994MO051030
  • User Pedon ID: 1994MO051030
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9405115
  • NCSS Pedon Lab Data NASIS Record ID - 34212
  • Print Date: 11/12/2024

    • 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: 38.9672644
  • Std. Longitude: -92.3451678
  • Datum: WGS84
  • Section: 35
  • Location Description: 100 'S, 2100'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: series
  • Pedon Type: representative pedon for component
  • 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: backslope
  • 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

    16

    —

    —

    230

    —

    355

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); dark grayish brown (10YR 4/2) interior silt loam; moderate very fine granular structure; friable; 6.0 very fine roots; 6 percent manganese or iron-manganese stains; 1 percent fine iron-manganese masses; fragments; moderately acid, pH 5.9, hellige-truog; abrupt smooth boundary. Lab sample # MU049670
    Bt1—15 to 30 centimeters (5.9 to 11.8 inches); dark yellowish brown (10YR 4/4) interior silty clay loam; moderate fine subangular blocky structure; friable; 6.0 very fine roots; 26 percent prominent silt coats on faces of peds and 26 percent prominent clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; strongly acid, pH 5.4, hellige-truog; gradual smooth boundary. Lab sample # MU049671
    Bt2—30 to 46 centimeters (11.8 to 18.1 inches); dark yellowish brown (10YR 4/6) interior 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 iron-manganese masses; fragments; strongly acid, pH 5.3, hellige-truog; gradual smooth boundary. Lab sample # MU049672
    Bt3—46 to 71 centimeters (18.1 to 28.0 inches); dark yellowish brown (10YR 4/6) interior silty clay loam; 15 percent strong brown (7.5YR 5/8) fine prominent and 15 percent grayish brown (10YR 5/2) fine prominent mottles; moderate fine subangular blocky structure; firm; 3.0 very fine roots; 26 percent prominent silt coats in root channels and/or pores and 55 percent prominent clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; very strongly acid, pH 5.0, hellige-truog; gradual smooth boundary. Lab sample # MU049673
    2Btx4—71 to 97 centimeters (28.0 to 38.2 inches); dark yellowish brown (10YR 4/4) interior loam; 15 percent grayish brown (10YR 5/2) fine distinct and 15 percent strong brown (7.5YR 4/6) fine prominent mottles; weak coarse platy parts to weak coarse subangular blocky structure; very firm; brittle; 0.8 very fine roots; 26 percent prominent silt coats on vertical faces of peds and 26 percent prominent clay films on vertical faces of peds; fragments; very strongly acid, pH 4.8, hellige-truog; gradual smooth boundary. Lab sample # MU049674
    3Btx5—97 to 130 centimeters (38.2 to 51.2 inches); dark yellowish brown (10YR 4/6) interior extremely gravelly loam; 15 percent strong brown (7.5YR 5/8) fine prominent and 15 percent grayish brown (10YR 5/2) fine prominent mottles; weak coarse platy parts to weak medium subangular blocky structure; very firm; brittle; 0.7 very fine roots; 15 percent prominent silt coats on vertical faces of peds and 15 percent prominent clay films on vertical faces of peds; 5 percent by volume 75-162-250 millimeter unspecified fragments and 55 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.7, hellige-truog; gradual smooth boundary. Lab sample # MU049675
    3Btx6—130 to 160 centimeters (51.2 to 63.0 inches); strong brown (7.5YR 5/6) interior extremely gravelly loam; 15 percent grayish brown (10YR 5/2) fine prominent mottles; weak coarse platy parts to weak fine subangular blocky structure; very firm; brittle; 26 percent prominent silt coats on vertical faces of peds and 26 percent prominent clay films on vertical faces of peds; 10 percent by volume 250-425-600 millimeter unspecified fragments and 60 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.1, hellige-truog; gradual smooth boundary. Lab sample # MU049676
    4Bt7—160 to 211 centimeters (63.0 to 83.1 inches); 60 percent dark red (2.5YR 3/6) interior and 40 percent red (2.5YR 4/6) interior clay; 26 percent grayish brown (10YR 5/2) fine prominent mottles; strong fine subangular blocky structure; very firm; 55 percent prominent clay films on faces of peds; 10 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.2, hellige-truog; gradual smooth boundary. Lab sample # MU049677