IDENTIFIERS

  • Current Taxon Name (Soil Name): Armstrong
  • OSD
  • Series Extent
  • User Site ID: 1992MO019010
  • User Pedon ID: 1992MO019010
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9201910
  • NCSS Pedon Lab Data NASIS Record ID - 34298
  • 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: 39.2296901
  • Std. Longitude: -92.2698545
  • Datum: WGS84
  • Range: R12W
  • Section: 4
  • Location Description: 600 feet north and 2250 feet east of the SW corner of sec. 4, T.51N.,R.12W.
  • State: Missouri
  • County: MO019—Boone
  • MLRA: 115—Central Mississippi Valley Wooded Slopes

    • PEDON

  • Describers Name: GHD
  • Pedon Type: within range of map unit
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Armstrong
  • PSC - 41 to 91 cm.
  • Classificaton Date - 11/18/1991
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess and/or till
  • Landscape: hills
  • Landform: hillside
  • Runoff: medium
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/18/1991 (actual site observation date)
  • Air Photo ID: 02
  • 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

    argillic horizon

    0—41

    41—165

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    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

    6

    —

    —

    —

    —

    35

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    —

    —

    —

    —

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    Ap—0 to 23 centimeters (0.0 to 9.1 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; silt loam; moderate coarse, and moderate fine granular, and weak fine platy parts to weak fine subangular blocky structure; friable; 6.0 very fine roots; fragments; neutral, pH 6.8, hellige-truog; abrupt smooth boundary. Lab sample # MU044139
    E—23 to 41 centimeters (9.1 to 16.1 inches); yellowish brown (10YR 5/4) silt loam; moderate fine subangular blocky structure; friable; 3.0 very fine roots; 30 percent faint silt coats on faces of peds; 1 percent fine iron-manganese concretions and 15 percent fine dark yellowish brown (10YR 4/4) masses of oxidized iron; fragments; strongly acid, pH 5.5, hellige-truog; clear smooth boundary. Lab sample # MU044140. (Note: The 10YR 4/4 soft mass occures in the lower three inches of the horizon.)
    Bt1—41 to 61 centimeters (16.1 to 24.0 inches); yellowish brown (10YR 5/4) silty clay loam; moderate fine subangular blocky structure; friable; 3.0 very fine roots; 35 percent distinct silt coats on faces of peds; 15 percent fine red (2.5YR 4/6) masses of oxidized iron; fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU044141
    2Btg1—61 to 94 centimeters (24.0 to 37.0 inches); grayish brown (10YR 5/2) silty clay; strong fine subangular blocky structure; firm; 0.1 very fine roots; 35 percent prominent silt coats on faces of peds and 60 percent faint clay films on faces of peds; 30 percent fine and medium red (2.5YR 4/8) masses of oxidized iron; fragments; very strongly acid, pH 5.0, hellige-truog; gradual smooth boundary. Lab sample # MU044142
    2Btg2—94 to 124 centimeters (37.0 to 48.8 inches); light brownish gray (10YR 6/2) silty clay; moderate fine subangular blocky structure; firm; 15 percent faint clay films on faces of peds; 15 percent fine and medium dark yellowish brown (10YR 4/4) masses of oxidized iron; fragments; strongly acid, pH 5.2, hellige-truog; gradual smooth boundary. Lab sample # MU044143
    2Btg3—124 to 165 centimeters (48.8 to 65.0 inches); light brownish gray (10YR 6/2) clay; moderate fine subangular blocky structure; firm; 15 percent prominent clay films on faces of peds and in pores; 30 percent medium and coarse dark yellowish brown (10YR 4/6) masses of oxidized iron; 1 percent by volume 2-39-75 millimeter quartzite fragments; moderately acid, pH 5.9, hellige-truog. Lab sample # MU044144. (Note: The quartzite gravel is white and red.)