IDENTIFIERS

  • Current Taxon Name (Soil Name): McGirk
  • OSD
  • Series Extent
  • User Site ID: 1994MO125031M
  • User Pedon ID: 1994MO125031
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9412531
  • Print Date: 4/26/2025

    • 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: 38.1912500
  • Std. Longitude: -91.7033333
  • Datum: WGS84
  • Township: T40N
  • Range: R7W
  • Section: 21
  • PLSS Details: 1100 feet W and 2400 feet S of the NE corner
  • State: Missouri
  • County: MO125—Maries
  • MLRA: 116A—Ozark Highland

    • PEDON

  • Describers Name: Keith Davis Brad Berhorst Wyn Kelley
  • Current Taxonomic Class: Fine, montmorillonitic Typic Endoaqualfs
  • Pedon Type: representative pedon for component
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - McGirk
  • Taxonomic Class - Fine, montmorillonitic Typic Endoaqualfs
  • Taxon Kind - series
  • PSC - 46 to 96 cm.
  • Classificaton Date - 12/5/1994
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: slope alluvium
  • Landscape: foothills
  • Landform: terrace
  • Hill Slope Profile: footslope
  • Slope Position: on a slope
  • Slope Shape Across: linear
  • Slope Shape Down: concave
  • Runoff: medium
  • Drainage Class: poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/5/1994 (actual site observation date)
  • Air Photo ID: 10C
  • 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

    albic horizon

    argillic horizon

    0—46

    20—46

    46—122

    —-

    —-

    —-
    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

    43

    18.3

    288

    —

    270

    991

    —

    —

    12.8

    —

    —

    13.9

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); dark grayish brown (10YR 4/2) interior silt loam; weak fine subangular blocky structure; friable; 7.0 very fine and fine roots throughout; 7.0 very fine and fine moderate-continuity vesicular pores; fragments; moderately acid, pH 5.9, hellige-truog; clear smooth boundary. Lab sample # MU050738
    E1—20 to 33 centimeters (7.9 to 13.0 inches); 99 percent grayish brown (10YR 5/2) interior silt loam; 1 percent dark yellowish brown (10YR 4/6) fine prominent irregular mottles; weak thin platy parts to weak fine subangular blocky structure; friable; 3.0 very fine and fine roots between peds; 4.0 very fine and fine moderate-continuity vesicular pores; fragments; strongly acid, pH 5.4, hellige-truog; clear smooth boundary. Lab sample # MU050739. Few subrounded chert pebbles.
    E2—33 to 46 centimeters (13.0 to 18.1 inches); 99 percent grayish brown (10YR 5/2) interior silt loam; 1 percent yellowish brown (10YR 5/4) fine distinct irregular mottles; weak thin platy parts to weak fine subangular blocky structure; friable; 3.0 very fine and fine roots between peds; 3.0 very fine and fine moderate-continuity vesicular pores; 5 percent faint dark reddish brown (5YR 2/2), moist, manganese or iron-manganese stains on faces of peds; fragments; strongly acid, pH 5.3, hellige-truog; clear smooth boundary. Lab sample # MU050740. Few subrounded chert pebbles.; discontinuous - phpvsfiid 145068; discontinuous - phpvsfiid 145068
    Btg1—46 to 64 centimeters (18.1 to 25.2 inches); 99 percent grayish brown (10YR 5/2) interior silty clay loam; 1 percent yellowish brown (10YR 5/6) fine prominent irregular mottles; moderate fine prismatic parts to weak fine subangular blocky structure; firm; 1.0 very fine and fine roots between peds; 5.0 very fine and fine moderate-continuity vesicular pores; 5 percent faint dark reddish brown (5YR 2/2), moist, manganese or iron-manganese stains on faces of peds and 10 percent faint clay films on faces of peds; fragments; strongly acid, pH 5.3, hellige-truog; clear smooth boundary. Lab sample # MU050741. Few subrounded chert pebbles.; discontinuous - phpvsfiid 145069; discontinuous - phpvsfiid 145070; discontinuous - phpvsfiid 145069; discontinuous - phpvsfiid 145070
    Btg2—64 to 102 centimeters (25.2 to 40.2 inches); 99 percent dark grayish brown (10YR 4/2) interior silty clay loam; 1 percent dark yellowish brown (10YR 4/6) fine prominent irregular mottles; moderate medium prismatic parts to weak fine subangular blocky structure; firm; 0.8 very fine and fine roots between peds; 8.0 very fine and fine moderate-continuity vesicular pores; 40 percent distinct clay films on faces of peds; fragments; strongly acid, pH 5.4, hellige-truog; gradual smooth boundary. Lab sample # MU050742. Few subrounded chert pebbles.; discontinuous - phpvsfiid 145071; discontinuous - phpvsfiid 145071
    Btg3—102 to 122 centimeters (40.2 to 48.0 inches); 80 percent dark grayish brown (10YR 4/2) interior silty clay loam; 20 percent dark yellowish brown (10YR 4/6) medium prominent irregular mottles; weak medium prismatic parts to weak fine subangular blocky structure; firm; 0.8 very fine roots between peds; 6.0 very fine moderate-continuity vesicular and 1.0 fine moderate-continuity vesicular pores; 40 percent distinct clay films on faces of peds; 5 percent by volume subrounded 2-39-75 millimeter unspecified fragments; moderately acid, pH 5.7, hellige-truog; clear wavy boundary. Lab sample # MU050743. All gravels are chert.; discontinuous - phpvsfiid 145072; discontinuous - phpvsfiid 145072
    2Cg—122 to 203 centimeters (48.0 to 79.9 inches); 85 percent dark grayish brown (10YR 4/2) interior very gravelly silty clay loam; 15 percent dark yellowish brown (10YR 4/6) medium prominent irregular mottles; weak medium prismatic structure; firm; 0.2 very fine roots between peds; 2.0 very fine low-continuity vesicular pores; 45 percent by volume rounded 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.4, hellige-truog. Lab sample # MU050744. All gravels are chert. Apparent water table present in horizon at the time it was described.