IDENTIFIERS

  • Current Taxon Name (Soil Name): Armstrong
  • OSD
  • Series Extent
  • User Site ID: 2009MO171003
  • User Pedon ID: 2009MO171003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0917103
  • Print Date: 6/3/2024

    • 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: 40.4248886
  • Std. Longitude: -92.9851913
  • Datum: WGS84
  • Map Unit: 30030—Armstrong clay loam, 9 to 14 percent slopes, moderately eroded
  • Country: US—United States
  • State: Missouri
  • County: MO171—Putnam
  • MLRA: 109—Iowa and Missouri Heavy Till Plain
  • Regional Office: NC—North Central
  • Non-MLRA Soil Survey Area: MO171—Putnam County, Missouri
  • 7.5 Minute USGS Quad: 40092-D8—Unionville East, Missouri

    • PEDON

  • Describers Name: Melvin Simmons
  • Current Taxonomic Class: Fine, smectitic, mesic Oxyaquic Vertic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 3
  • Correlated Information:
  • Soil Name - Armstrong
  • PSC - 12 to 62 cm.
  • Classificaton Date - 7/23/2012
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - udic
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Armstrong
  • Classificaton Date - 4/27/2009
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: hills
  • Landform: ridge
  • Geomorphic Component Hills: nose slope
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: negligible
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Sangamonian Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/27/2009 (actual site observation date)
  • Air Photo ID: 40092d8
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion rill
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    redox concentrations

    redox depletions with chroma 2 or less

    0—12

    12—170

    12—170

    38—170

    —12—

    —158—

    —158—

    —132—
    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

    9

    —

    —

    —

    —

    140

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 12 centimeters (0.0 to 4.7 inches); dark grayish brown (10YR 4/2) rubbed, brown (10YR 5/3) rubbed, dry; clay loam; weak fine granular structure; friable; 7.0 very fine roots throughout; 7.0 very fine moderate-continuity pores; fragments; clear smooth boundary. Lab sample # MU030560; observed in pit, small
    Bt1—12 to 27 centimeters (4.7 to 10.6 inches); yellowish brown (10YR 5/6) broken face clay loam; moderate fine subangular blocky structure; friable; 3.0 very fine roots throughout; 7.0 very fine moderate-continuity pores; 2 percent fine faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, masses of oxidized iron with diffuse boundaries on vertical faces of peds; 3 percent by volume nonflat angular indurated 2-?-75 millimeter conglomerate, unspecified fragments; clear smooth boundary. Lab sample # MU030561; observed in pit, small
    Bt2—27 to 38 centimeters (10.6 to 15.0 inches); yellowish brown (10YR 5/6) broken face clay; moderate fine subangular blocky structure; firm; 3.0 very fine roots throughout; 7.0 very fine moderate-continuity pores; 10 percent fine faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, masses of oxidized iron with diffuse boundaries on vertical faces of peds; 10 percent by volume nonflat angular indurated 2-?-75 millimeter conglomerate, unspecified fragments; clear smooth boundary. Lab sample # MU030562; observed in pit, small
    2Bt3—38 to 50 centimeters (15.0 to 19.7 inches); yellowish brown (10YR 5/6) broken face clay loam; strong fine subangular blocky structure; firm; 3.0 very fine roots throughout; 7.0 very fine moderate-continuity pores; 3 percent fine faint irregular noncoherent cemented light brownish gray (10YR 6/2), moist, clay depletions with diffuse boundaries on vertical faces of peds and 20 percent fine faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, masses of oxidized iron with diffuse boundaries on vertical faces of peds; 10 percent by volume nonflat angular indurated 2-?-75 millimeter conglomerate, unspecified fragments; clear smooth boundary. Lab sample # MU030563; observed in pit, small
    2Bt4—50 to 63 centimeters (19.7 to 24.8 inches); strong brown (7.5YR 5/6) broken face clay loam; strong fine subangular blocky structure; firm; 3.0 very fine roots throughout; 7.0 very fine moderate-continuity pores; 3 percent fine faint irregular noncoherent cemented light brownish gray (10YR 6/2), moist, clay depletions with diffuse boundaries on vertical faces of peds and 10 percent fine faint irregular noncoherent cemented yellowish red (5YR 5/6), moist, masses of oxidized iron with diffuse boundaries on vertical faces of peds; 10 percent by volume nonflat angular indurated 2-?-75 millimeter conglomerate, unspecified fragments; clear smooth boundary. Lab sample # MU030564; observed in pit, small
    2Bt5—63 to 90 centimeters (24.8 to 35.4 inches); strong brown (7.5YR 5/6) broken face clay loam; strong fine subangular blocky, and weak fine prismatic structure; firm; 3.0 very fine roots throughout; 7.0 very fine moderate-continuity pores; 10 percent fine faint irregular noncoherent cemented yellowish red (5YR 5/6), moist, masses of oxidized iron with diffuse boundaries on vertical faces of peds and 20 percent fine faint irregular noncoherent cemented light brownish gray (10YR 6/2), moist, clay depletions with diffuse boundaries on vertical faces of peds; 10 percent by volume nonflat angular indurated 2-?-75 millimeter conglomerate, unspecified fragments; clear smooth boundary. Lab sample # MU030565; observed in pit, small
    2Bt6—90 to 120 centimeters (35.4 to 47.2 inches); strong brown (7.5YR 5/6) broken face clay loam; strong fine subangular blocky, and weak fine prismatic structure; firm; 7.0 very fine moderate-continuity pores; 20 percent fine faint irregular noncoherent cemented gray (10YR 6/1), moist, clay depletions with diffuse boundaries on vertical faces of peds and 20 percent fine faint irregular noncoherent cemented yellowish red (5YR 5/6), moist, masses of oxidized iron with diffuse boundaries on vertical faces of peds; 10 percent by volume nonflat angular indurated 2-?-75 millimeter conglomerate, unspecified fragments; clear smooth boundary. Lab sample # MU030566; observed in pit, small
    2Bt7—120 to 137 centimeters (47.2 to 53.9 inches); strong brown (7.5YR 5/6) broken face clay loam; weak fine subangular blocky structure; firm; 7.0 very fine moderate-continuity pores; 10 percent fine faint irregular noncoherent cemented yellowish red (5YR 5/6), moist, clay depletions with diffuse boundaries on vertical faces of peds and 15 percent fine distinct irregular noncoherent cemented black (N 2.5/0), moist, iron-manganese masses with diffuse boundaries on vertical faces of peds and 20 percent fine faint irregular noncoherent cemented gray (10YR 6/1), moist, clay depletions with diffuse boundaries on vertical faces of peds; 15 percent by volume nonflat angular indurated 2-?-75 millimeter conglomerate, unspecified fragments; clear smooth boundary. Lab sample # MU030567; observed in pit, small
    2Bt8—137 to 150 centimeters (53.9 to 59.1 inches); strong brown (7.5YR 5/6) broken face clay loam; weak fine subangular blocky structure; firm; 7.0 very fine moderate-continuity pores; 10 percent fine faint irregular noncoherent cemented yellowish red (5YR 5/6), moist, clay depletions with diffuse boundaries on vertical faces of peds and 10 percent fine faint irregular noncoherent cemented gray (10YR 6/1), moist, clay depletions with diffuse boundaries on vertical faces of peds and 15 percent fine distinct irregular noncoherent cemented black (N 2.5/0), moist, iron-manganese masses with diffuse boundaries on vertical faces of peds; 15 percent by volume nonflat angular indurated 2-?-75 millimeter conglomerate, unspecified fragments; clear smooth boundary. Lab sample # MU030568; observed in pit, small
    2Bt9—150 to 170 centimeters (59.1 to 66.9 inches); strong brown (7.5YR 5/6) broken face clay loam; weak fine subangular blocky structure; firm; 3.0 very fine moderate-continuity pores; 10 percent fine faint irregular noncoherent cemented gray (10YR 6/1), moist, clay depletions with diffuse boundaries on vertical faces of peds and 10 percent fine faint irregular noncoherent cemented yellowish red (5YR 5/6), moist, masses of oxidized iron with diffuse boundaries and 15 percent fine distinct irregular noncoherent cemented black (N 2.5/0), moist, iron-manganese masses with diffuse boundaries; 15 percent by volume nonflat angular indurated 2-?-75 millimeter conglomerate, unspecified fragments. Lab sample # MU030569; observed in pit, small