IDENTIFIERS

  • Current Taxon Name (Soil Name): Gravois
  • OSD
  • Series Extent
  • User Site ID: 1994MO051031
  • User Pedon ID: 1994MO051031
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9405116
  • NCSS Pedon Lab Data NASIS Record ID - 34211
  • Print Date: 12/4/2024

    • 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: 22
  • Location Description: 2500' E, 220'N of the SW Corner of Sec 22 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: TUD pedon
  • 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 dolomite
  • Landscape: hills
  • Landform: hillside
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • 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

    10

    —

    —

    184

    —

    136

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); brown (10YR 4/3) interior silt loam; moderate very fine granular structure; friable; 6.0 very fine roots; 6 percent manganese or iron-manganese stains; 10 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; slightly acid, pH 6.2, hellige-truog; abrupt smooth boundary. Lab sample # MU049678
    Bt1—15 to 28 centimeters (5.9 to 11.0 inches); strong brown (7.5YR 4/6) interior silt loam; moderate fine subangular blocky structure; firm; 6.0 very fine roots; 52 percent prominent silt coats on faces of peds and 52 percent distinct clay films on faces of peds; 1 percent fine iron-manganese masses; 5 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; neutral, pH 6.8, hellige-truog; clear smooth boundary. Lab sample # MU049679
    Bt2—28 to 51 centimeters (11.0 to 20.1 inches); brown (7.5YR 4/4) interior silty clay loam; moderate very fine subangular blocky structure; firm; 6.0 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; 1 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; moderately acid, pH 6.0, hellige-truog; clear smooth boundary. Lab sample # MU049680
    Bt3—51 to 69 centimeters (20.1 to 27.2 inches); brown (7.5YR 4/4) interior silty clay loam; 15 percent grayish brown (10YR 5/2) fine prominent and 15 percent strong brown (7.5YR 5/8) fine prominent mottles; moderate medium subangular blocky structure; firm; 3.0 very fine roots; 26 percent prominent clay films on faces of peds and 26 percent prominent silt coats in root channels and/or pores; 1 percent fine iron-manganese masses; 1 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.4, hellige-truog; clear smooth boundary. Lab sample # MU049681
    2Btx1—69 to 84 centimeters (27.2 to 33.1 inches); dark yellowish brown (10YR 4/6) interior silt loam; 15 percent grayish brown (10YR 5/2) 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; 4 percent fine iron-manganese masses; 5 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.4, hellige-truog; clear smooth boundary. Lab sample # MU049682. 40% brittle
    3Btx2—84 to 119 centimeters (33.1 to 46.9 inches); dark yellowish brown (10YR 4/6) interior extremely gravelly silt loam; weak coarse platy parts to weak medium subangular blocky structure; very firm; brittle; 0.7 very fine roots; 26 percent prominent silt coats on vertical faces of peds and 26 percent prominent clay films on vertical faces of peds; 3 percent fine iron-manganese masses; 56 percent by volume well rounded 2-39-75 millimeter limestone, cherty fragments; neutral, pH 6.6, hellige-truog; gradual smooth boundary. Lab sample # MU049683. 30% brittle
    3Btx3—119 to 152 centimeters (46.9 to 59.8 inches); strong brown (7.5YR 4/6) interior extremely gravelly loam; moderate fine subangular blocky structure; very firm; brittle; 0.5 very fine roots; 15 percent distinct silt coats on vertical faces of peds and 55 percent distinct clay films on vertical faces of peds; 1 percent fine iron-manganese masses; 5 percent by volume 250-425-600 millimeter unspecified fragments and 65 percent by volume 2-39-75 millimeter limestone, cherty fragments; neutral, pH 7.1, hellige-truog; gradual smooth boundary. Lab sample # MU049684. 15% brittle
    4Bt—152 to 203 centimeters (59.8 to 79.9 inches); 60 percent red (2.5YR 4/6) interior and 40 percent yellowish red (5YR 4/6) interior very gravelly clay; strong fine subangular blocky structure; very firm; 55 percent prominent clay films on faces of peds; 1 percent fine iron-manganese masses; 40 percent by volume 2-39-75 millimeter limestone, cherty fragments; slightly alkaline, pH 7.5, hellige-truog; gradual smooth boundary. Lab sample # MU049685