IDENTIFIERS

  • Current Taxon Name (Soil Name): Gravois
  • OSD
  • Series Extent
  • User Site ID: 1994MO051033
  • User Pedon ID: 1994MO051033
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9405118
  • NCSS Pedon Lab Data NASIS Record ID - 34209
  • 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: 26
  • Location Description: 500 'W, 1200'S of the NE corner of Section 26 T42N, R12W
  • State: Missouri
  • County: MO051—Cole
  • MLRA: 116B—Springfield Plain

    • PEDON

  • Describers Name: John L. Baker
  • Current Taxon Kind: series
  • Pedon Type: within range of map unit
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Gravois
  • PSC - 20 to 71 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—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

    4

    —

    —

    241

    —

    5

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); brown (10YR 4/3) interior silt loam; weak very fine granular structure; friable; 6.0 very fine roots; fragments; strongly acid, pH 5.5, hellige-truog; abrupt smooth boundary. Lab sample # MU049694
    Bt1—20 to 43 centimeters (7.9 to 16.9 inches); dark yellowish brown (10YR 4/6) interior silt loam; moderate very fine subangular blocky structure; firm; 3.0 very fine roots; 15 percent distinct 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 5.4, hellige-truog; gradual smooth boundary. Lab sample # MU049695
    Bt2—43 to 58 centimeters (16.9 to 22.8 inches); dark yellowish brown (10YR 4/6) interior silty clay loam; moderate fine subangular blocky structure; firm; 3.0 very fine roots; 15 percent prominent silt coats on vertical faces of peds and 26 percent prominent clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; strongly acid, pH 5.1, hellige-truog; gradual smooth boundary. Lab sample # MU049696
    Btx3—58 to 69 centimeters (22.8 to 27.2 inches); yellowish brown (10YR 5/4) interior silty clay loam; 15 percent strong brown (7.5YR 5/6) fine prominent and 15 percent grayish brown (10YR 5/2) fine distinct mottles; moderate coarse subangular blocky structure; firm; brittle; 0.8 very fine roots; 15 percent prominent clay films on faces of peds and 26 percent distinct silt coats on vertical faces of peds; 5 percent by volume angular 2-39-75 millimeter unspecified fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU049697
    2Btx4—69 to 94 centimeters (27.2 to 37.0 inches); yellowish brown (10YR 5/4) interior extremely gravelly silt loam; 15 percent strong brown (7.5YR 5/6) fine prominent and 22 percent grayish brown (10YR 5/2) fine distinct mottles; weak coarse subangular blocky structure; very firm; brittle; 0.6 very fine roots; 15 percent prominent clay films on vertical faces of peds and 26 percent prominent silt coats on vertical faces of peds; 5 percent by volume 250-425-600 millimeter unspecified fragments and 60 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU049698
    3Btx5—94 to 119 centimeters (37.0 to 46.9 inches); 60 percent dark yellowish brown (10YR 4/6) interior and 40 percent grayish brown (10YR 5/2) interior extremely stony loam; 25 percent strong brown (7.5YR 5/8) fine prominent mottles; moderate medium subangular blocky structure; very firm; brittle; 0.5 very fine roots; 15 percent prominent silt coats on vertical faces of peds and 26 percent prominent clay films on faces of peds; 60 percent by volume 250-425-600 millimeter sandstone, unspecified fragments; very strongly acid, pH 4.7, hellige-truog; gradual smooth boundary. Lab sample # MU049699
    3Btx6—119 to 152 centimeters (46.9 to 59.8 inches); 60 percent grayish brown (10YR 5/2) interior and 40 percent dark yellowish brown (10YR 4/6) interior extremely stony silt loam; 22 percent strong brown (7.5YR 5/8) fine prominent mottles; moderate fine subangular blocky structure; very firm; brittle; 0.3 very fine roots; 15 percent prominent silt coats on vertical faces of peds and 26 percent prominent clay films on faces of peds; 60 percent by volume 250-425-600 millimeter sandstone, unspecified fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU049700
    4Bt7—152 to 203 centimeters (59.8 to 79.9 inches); red (2.5YR 4/6) interior clay; 25 percent strong brown (7.5YR 4/6) fine prominent mottles; strong fine angular blocky structure; very firm; 26 percent prominent clay films on faces of peds and 26 percent manganese or iron-manganese stains; 10 percent by volume 2-39-75 millimeter unspecified fragments; neutral, pH 6.6, hellige-truog. Lab sample # MU049701