IDENTIFIERS

  • Current Taxon Name (Soil Name): Armstrong
  • OSD
  • Series Extent
  • User Site ID: 2008MO081001
  • User Pedon ID: 2008MO081001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0808101
  • NCSS Pedon Lab Data NASIS Record ID - 30690
  • Print Date: 11/12/2024

    • 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: 40.2218056
  • Std. Longitude: -94.0043030
  • Datum: WGS84
  • Township: T63N
  • Range: R28W
  • Section: 25
  • PLSS Details: 1,201 feet East and 168 feet North from the South West corner
  • Location Description: Williams property
  • Map Unit: 30036—Armstrong loam, 5 to 9 percent slopes
  • Country: US—United States
  • State: Missouri
  • County: MO081—Harrison
  • MLRA: 109—Iowa and Missouri Heavy Till Plain
  • Regional Office: NC—North Central
  • Non-MLRA Soil Survey Area: MO081—Harrison County, Missouri
  • 7.5 Minute USGS Quad: 40094-B1—Mitchellville, Missouri

    • PEDON

  • Describers Name: Kim Worth
  • Current Taxonomic Class: Fine, smectitic, mesic Aquertic 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 #: 1
  • Sampled As Information:
  • Soil Name - Armstrong
  • Taxonomic Class - Fine, smectitic, mesic Aquertic Hapludalfs
  • PSC - 18 to 68 cm.
  • Classificaton Date - 8/27/2008
  • Soil Taxonomic Edition - first edition
  • Moisture Class - udic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: clayey pedisediment derived from mixed over clayey till derived from aa lava
  • Landscape: till plain
  • Landform: hillslope
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: lower third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: concave
  • Runoff: negligible
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Hertha Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/27/2008 (actual site observation date)
  • Air Photo ID: 40094b1
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
  • 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

    redox depletions with chroma 2 or less

    0—18

    18—124

    18—163

    35—163

    —18—

    —106—

    —145—

    —128—
    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

    —

    —

    281.3

    —

    70

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); dark grayish brown (10YR 4/2) crushed silt loam; 12 percent sand; 64 percent silt; 24 percent clay; friable; 10.0 very fine roots throughout; 3.0 very fine and 3.0 fine pores; 2 percent fine prominent spherical black (N 2.5/0), moist, iron-manganese masses with clear boundaries throughout; fragments. Lab sample # MU030005; observed in push tube
    Bt1—18 to 35 centimeters (7.1 to 13.8 inches); yellowish brown (10YR 5/4) broken face silty clay loam; 10 percent sand; 63 percent silt; 27 percent clay; firm; 3.0 very fine roots throughout; 3.0 very fine pores; 15 percent faint brown (10YR 5/3), moist, clay films on all faces of peds; 3 percent medium prominent spherical black (N 2.5/0), moist, iron-manganese masses with clear boundaries throughout and 10 percent fine distinct spherical strong brown (7.5YR 5/6), moist, masses of oxidized iron with clear boundaries throughout; fragments. Lab sample # MU030006; observed in push tube
    2Bt2—35 to 72 centimeters (13.8 to 28.3 inches); yellowish brown (10YR 5/4) broken face silty clay loam; 10 percent sand; 55 percent silt; 35 percent clay; firm; 3.0 very fine roots throughout; 3.0 very fine and 3.0 fine pores; 30 percent faint brown (10YR 5/3), moist, clay films on all faces of peds; 2 percent medium prominent spherical black (N 2.5/0), moist, iron-manganese masses with clear boundaries throughout and 10 percent fine prominent irregular yellowish red (5YR 4/6), moist, masses of oxidized iron with clear boundaries throughout and 15 percent fine prominent irregular brown (7.5YR 4/4), moist, masses of oxidized iron with clear boundaries throughout and 15 percent medium prominent irregular gray (2.5Y 6/1), moist, iron depletions with clear boundaries throughout and 20 percent fine prominent irregular yellowish brown (10YR 5/6), moist, masses of oxidized iron with clear boundaries throughout; fragments. Lab sample # MU030007; observed in push tube
    2Bt3—72 to 102 centimeters (28.3 to 40.2 inches); 50 percent light gray (2.5Y 7/1) broken face and 50 percent yellowish brown (10YR 5/8) broken face silty clay loam; 12 percent sand; 51 percent silt; 37 percent clay; very firm; 0.5 very fine roots between peds; 3.0 very fine pores; 15 percent faint gray (10YR 6/1), moist, clay films on all faces of peds; 5 percent medium prominent spherical black (N 2.5/0), moist, iron-manganese nodules with clear boundaries throughout and 15 percent fine prominent irregular dark yellowish brown (10YR 4/4), moist, masses of oxidized iron with clear boundaries throughout; fragments. Lab sample # MU030008; observed in push tube
    2Bt4—102 to 124 centimeters (40.2 to 48.8 inches); 30 percent light gray (2.5Y 7/1) broken face and 70 percent yellowish brown (10YR 5/6) broken face silty clay; 12 percent sand; 48 percent silt; 40 percent clay; very firm; 0.5 very fine roots throughout; 0.5 very fine pores; 15 percent faint brown (10YR 5/3), moist, clay films on all faces of peds; 3 percent coarse prominent spherical black (N 2.5/0), moist, iron-manganese nodules with clear boundaries throughout and 5 percent fine prominent irregular yellowish brown (10YR 5/8), moist, masses of oxidized iron with clear boundaries throughout and 20 percent fine prominent irregular dark yellowish brown (10YR 4/4), moist, masses of oxidized iron with clear boundaries throughout; fragments. Lab sample # MU030009; observed in push tube
    2BC—124 to 163 centimeters (48.8 to 64.2 inches); 40 percent gray (2.5Y 6/1) broken face and 60 percent yellowish brown (10YR 5/8) broken face silty clay; 12 percent sand; 42 percent silt; 46 percent clay; extremely firm; 10 percent faint gray (10YR 6/1), moist, clay films on all faces of peds; 1 percent by volume nonflat angular very strongly coherent cemented 2-?-5 millimeter chert fragments. Lab sample # MU030010; observed in push tube