IDENTIFIERS

  • Current Taxon Name (Soil Name): Armstrong
  • OSD
  • Series Extent
  • User Site ID: 2007MO171003
  • User Pedon ID: 2007MO171003
  • Transect:
  • User Transect ID - Armstrong-171-02
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0717103
  • NCSS Pedon Lab Data NASIS Record ID - 26456
  • Print Date: 2/1/2025

    • 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: 40.4144440
  • Std. Longitude: -93.2916641
  • Datum: WGS84
  • Township: T65N
  • Range: R21W
  • Section: 19
  • PLSS Details: SE 1/4
  • State: Missouri
  • County: MO171—Putnam
  • MLRA: 109—Iowa and Missouri Heavy Till Plain
  • Non-MLRA Soil Survey Area: MO171—Putnam County, Missouri

    • PEDON

  • Describers Name: ms
  • Current Taxonomic Class: Fine, smectitic, mesic Aquertic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Armstrong
  • PSC - 20 to 72 cm.
  • Classificaton Date - 4/17/2012
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - udic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Armstrong
  • Classificaton Date - 12/5/2007
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: noncalcareous loess over till
  • Landscape: Loess covered hillslope on dissected till plain
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Position: lower third
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/5/2007 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion sheet
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    redox concentrations

    lithologic discontinuity

    redox depletions with chroma 2 or less

    lithologic discontinuity

    0—20

    20—200

    33—200

    33—172

    55—200

    172—200

    —-

    —-

    —-

    —-

    —-

    —-
    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

    5

    —

    —

    —

    —

    270

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark grayish brown (10YR 3/2) broken face, grayish brown (10YR 5/2) broken face, dry; silt loam; 5 percent sand; 26 percent clay; weak fine subangular blocky structure; friable; 7.0 very fine roots throughout and 7.0 fine roots throughout; 7.0 very fine irregular and 7.0 fine irregular pores; fragments; clear smooth boundary. Lab sample # MU009757; observed in push tube
    Bt1—20 to 33 centimeters (7.9 to 13.0 inches); brown (10YR 5/3) broken face silty clay loam; 5 percent sand; 34 percent clay; moderate fine subangular blocky structure; friable; 7.0 very fine roots throughout and 7.0 very fine roots throughout; 7.0 very fine irregular and 7.0 fine irregular pores; 1 percent brown (10YR 5/3), moist, clay films on vertical faces of peds; fragments; clear smooth boundary. Lab sample # MU009758; observed in push tube
    2Bt2—33 to 55 centimeters (13.0 to 21.7 inches); brown (7.5YR 5/4) broken face silty clay; 20 percent sand; 40 percent clay; moderate fine subangular blocky structure; friable; 3.0 very fine roots; 7.0 very fine irregular and 7.0 fine irregular pores; 10 percent faint brown (7.5YR 4/2), moist, clay films on vertical faces of peds; 5 percent fine prominent irregular noncoherent cemented strong brown (7.5YR 5/6), moist, masses of oxidized iron with sharp boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU009759; observed in push tube
    2Bt3—55 to 72 centimeters (21.7 to 28.3 inches); strong brown (7.5YR 5/6) broken face silty clay; 20 percent sand; 36 percent clay; weak fine prismatic parts to moderate fine subangular blocky structure; firm; 3.0 very fine roots; 7.0 fine irregular pores; 10 percent yellowish brown (10YR 5/4), moist, clay films on vertical faces of peds; 8 percent fine irregular noncoherent cemented yellowish brown (10YR 5/6), moist, masses of oxidized iron with diffuse boundaries and 10 percent fine irregular noncoherent cemented yellowish brown (10YR 5/4), moist, masses of oxidized iron with diffuse boundaries; fragments; clear wavy boundary. Lab sample # MU009760; observed in push tube
    2Bt4—72 to 110 centimeters (28.3 to 43.3 inches); yellowish brown (10YR 5/6) broken face silty clay loam; 20 percent sand; 36 percent clay; weak fine prismatic parts to strong fine subangular blocky structure; firm; 3.0 very fine roots; 7.0 very fine irregular pores; 10 percent brown (10YR 5/3), moist, clay films on vertical faces of peds; 5 percent fine distinct irregular noncoherent cemented yellowish brown (10YR 5/6), moist, masses of oxidized iron with diffuse boundaries and 5 percent fine distinct irregular noncoherent cemented yellowish brown (10YR 5/6), moist, masses of oxidized iron with diffuse boundaries and 5 percent fine faint irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with diffuse boundaries; fragments; clear wavy boundary. Lab sample # MU009761; observed in push tube
    2Bt5—110 to 130 centimeters (43.3 to 51.2 inches); yellowish brown (10YR 5/4) broken face silty clay loam; 20 percent sand; 36 percent clay; weak medium prismatic parts to moderate medium subangular blocky structure; firm; 7.0 very fine irregular pores; 10 percent brown (10YR 5/3), moist, clay films; 5 percent fine distinct irregular noncoherent cemented yellowish brown (10YR 5/8), moist, masses of oxidized iron with clear boundaries and 5 percent fine distinct irregular noncoherent cemented gray (10YR 5/1), moist, clay depletions with clear boundaries and 10 percent fine distinct irregular noncoherent cemented yellowish brown (10YR 5/4), moist, masses of oxidized iron with clear boundaries; 2 percent by volume nonflat subangular indurated 2-3-5 millimeter chert fragments; clear wavy boundary. Lab sample # MU009762; observed in push tube
    3Bt6—130 to 172 centimeters (51.2 to 67.7 inches); yellowish brown (10YR 5/6) broken face silty clay loam; 30 percent sand; 35 percent clay; weak fine prismatic parts to moderate fine subangular blocky structure; firm; 7.0 very fine irregular pores; 10 percent brown (10YR 5/3) clay films on vertical faces of peds; 5 percent fine distinct irregular noncoherent cemented brownish yellow (10YR 6/6), moist, masses of oxidized iron with clear boundaries and 10 percent fine distinct irregular noncoherent cemented black (N 2/0), moist, iron-manganese masses with clear boundaries and 10 percent fine faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, masses of oxidized iron with clear boundaries; 10 percent fine noncoherent cemented light gray (10YR 7/1), moist, carbonate, finely disseminated; 2 percent by volume nonflat subrounded indurated 2-3-5 millimeter chert fragments; clear wavy boundary. Lab sample # MU009763; observed in push tube
    3Bt7—172 to 190 centimeters (67.7 to 74.8 inches); yellowish brown (10YR 5/4) broken face clay loam; 30 percent sand; 30 percent clay; weak fine subangular blocky structure; firm; 7.0 very fine irregular pores; 10 percent brown (10YR 5/3), moist, clay films on vertical faces of peds; 5 percent fine distinct irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with diffuse boundaries and 20 percent fine distinct irregular noncoherent cemented brownish yellow (10YR 6/6), moist, masses of oxidized iron with diffuse boundaries; 10 percent fine irregular noncoherent cemented light gray (10YR 7/1), moist, carbonate, finely disseminated; 2 percent by volume nonflat subrounded indurated 2-3-5 millimeter chert fragments; clear wavy boundary. Lab sample # MU009764; observed in push tube
    3Bt8—190 to 200 centimeters (74.8 to 78.7 inches); yellowish brown (10YR 5/4) broken face clay loam; 30 percent sand; 31 percent clay; weak fine subangular blocky structure; firm; 7.0 very fine irregular pores; 2 percent brown (10YR 5/3), moist, clay films on vertical faces of peds; 5 percent fine distinct irregular noncoherent cemented brownish yellow (10YR 6/6), moist, masses of oxidized iron with diffuse boundaries and 10 percent fine prominent irregular noncoherent cemented black (N 2/0), moist, manganese masses with diffuse boundaries and 15 percent fine distinct irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with diffuse boundaries; 5 percent fine prominent irregular noncoherent cemented light gray (10YR 7/1), moist, carbonate, finely disseminated with diffuse boundaries; 3 percent by volume nonflat subrounded indurated 2-3-5 millimeter chert fragments; clear wavy boundary. Lab sample # MU009765; observed in push tube