IDENTIFIERS

  • Current Taxon Name (Soil Name): McGirk
  • OSD
  • Series Extent
  • User Site ID: 1989MO053031
  • User Pedon ID: 1989MO053031
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M8905331
  • NCSS Pedon Lab Data NASIS Record ID - 29562
  • Print Date: 1/30/2025

    • 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: 38.9182278
  • Std. Longitude: -92.8115833
  • Datum: WGS84
  • Township: 48N
  • Range: T17W
  • Section: 20
  • PLSS Details: 1000 feet South and 850 feet East of the NW Corner
  • Location Description: 1000 feet South and 850 feet East of the NW Corner of Sec. 20, T48N., R17W.
  • Map Unit: 10103—McGirk silt loam, 2 to 5 percent slopes
  • State: Missouri
  • County: MO053—Cooper
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-UNI—Union, Missouri
  • Non-MLRA Soil Survey Area: MO053—Cooper County, Missouri
  • 7.5 Minute USGS Quad: 38092-H7—Billingsville, Missouri

    • PEDON

  • Describers Name: Unknown
  • Current Taxonomic Class: Fine-silty, superactive, mesic Typic Endoaqualfs
  • Current Taxon Kind: taxon above family
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - McGirk
  • PSC - 36 to 86 cm.
  • Classificaton Date - 2/22/2021
  • Classifier - J.R. Perkins
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - McGirk
  • PSC - 36 to 86 cm.
  • Classificaton Date - 1/25/2011
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • Field Measured Properties: 24.2 percent of pscs clay and 0 percent of pscs gravel and 3.3 percent of pscs sand


    • SITE

  • Parent Material: fine-silty slope alluvium derived from sedimentary rock
  • Geomorphic Component Hills: base slope
  • Hill Slope Profile: toeslope
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: concave
  • Drainage Class: poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/12/1989 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    redox concentrations

    redox depletions with chroma 2 or less

    argillic horizon

    aquic conditions

    endosaturation

    reduced matrix

    0—36

    0—142

    23—152

    36—152

    36—152

    36—152

    36—152

    —36—

    —142—

    —129—

    —116—

    —116—

    —116—

    —116—
    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

    2

    —

    —

    196.6

    —

    180

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); brown (10YR 4/3) silt; 3 percent sand; 87 percent silt; 10 percent clay; weak very fine granular structure; friable; few (0.5) very fine roots throughout; 1 percent fine iron-manganese masses; fragments; neutral, pH 7.1, pH meter; abrupt smooth boundary. Lab sample # MU035110
    BE—23 to 36 centimeters (9.1 to 14.2 inches); dark grayish brown (10YR 4/2) silt loam; 4 percent sand; 84 percent silt; 13 percent clay; weak very fine subangular blocky structure; friable; few (0.5) very fine roots throughout; 15 percent distinct organoargillans and 37 percent distinct silt coats; 1 percent fine iron-manganese masses and 1 percent fine prominent dark yellowish brown (10YR 4/6), moist, masses of oxidized iron; fragments; moderately acid, pH 6.0, pH meter; clear smooth boundary. Lab sample # MU035111
    Btg1—36 to 58 centimeters (14.2 to 22.8 inches); light brownish gray (10YR 6/2) silt loam; 5 percent sand; 76 percent silt; 19 percent clay; weak fine subangular blocky structure; friable; few (0.5) very fine roots throughout; 70 percent distinct silt coats; 1 percent fine iron-manganese masses and 1 percent fine prominent dark yellowish brown (10YR 4/6), moist, masses of oxidized iron; fragments; strongly acid, pH 5.4, pH meter; clear smooth boundary. Lab sample # MU035112
    Btg2—58 to 76 centimeters (22.8 to 29.9 inches); grayish brown (2.5Y 5/2) silt loam; 5 percent sand; 69 percent silt; 26 percent clay; moderate very fine subangular blocky structure; firm; few (0.5) very fine roots; 37 percent distinct clay films on all faces of peds and 37 percent distinct silt coats on all faces of peds; 1 percent fine iron-manganese masses and 1 percent fine prominent dark yellowish brown (10YR 4/6), moist, masses of oxidized iron; fragments; strongly acid, pH 5.3, pH meter; clear smooth boundary. Lab sample # MU035113
    Btg3—76 to 94 centimeters (29.9 to 37.0 inches); dark grayish brown (2.5Y 4/2) silty clay loam; 3 percent sand; 64 percent silt; 33 percent clay; 1 percent dark yellowish brown (10YR 3/4) fine distinct mottles; moderate very fine subangular blocky structure; very firm; few (0.5) very fine roots throughout; 15 percent distinct silt coats and 70 percent distinct clay films; 1 percent fine faint grayish brown (2.5Y 5/2), moist, iron depletions and 11 percent fine iron-manganese masses; fragments; strongly acid, pH 5.2, pH meter; gradual smooth boundary. Lab sample # MU035114
    Btg4—94 to 114 centimeters (37.0 to 44.9 inches); dark grayish brown (10YR 4/2) silty clay loam; 4 percent sand; 64 percent silt; 33 percent clay; 1 percent dark yellowish brown (10YR 4/4) fine distinct mottles; moderate very fine subangular blocky structure; very firm; few (0.5) very fine roots throughout; 15 percent distinct silt coats and 70 percent distinct clay films; 1 percent fine distinct grayish brown (2.5Y 5/2), moist, iron depletions and 11 percent fine iron-manganese masses; fragments; strongly acid, pH 5.4, pH meter; gradual smooth boundary. Lab sample # MU035115
    Btg5—114 to 142 centimeters (44.9 to 55.9 inches); grayish brown (10YR 5/2) silty clay loam; 5 percent sand; 66 percent silt; 30 percent clay; moderate very fine subangular blocky structure; firm; few (0.5) fine roots throughout; 37 percent distinct clay films and 37 percent distinct silt coats; 11 percent fine iron-manganese masses; fragments; moderately acid, pH 5.6, pH meter; gradual smooth boundary. Lab sample # MU035116
    Btg6—142 to 152 centimeters (55.9 to 59.8 inches); grayish brown (10YR 5/2) silty clay loam; 5 percent sand; 65 percent silt; 30 percent clay; moderate very fine subangular blocky structure; firm; few (0.5) very fine roots throughout; 15 percent distinct silt coats and 37 percent distinct clay films; 11 percent fine iron-manganese masses and 11 percent fine prominent strong brown (7.5YR 4/6), moist, masses of oxidized iron and 11 percent fine prominent strong brown (7.5YR 5/6), moist, masses of oxidized iron; fragments; moderately acid, pH 5.7, pH meter. Lab sample # MU035117