IDENTIFIERS

  • Current Taxon Name (Soil Name): Armstrong
  • OSD
  • Series Extent
  • User Site ID: 1993MO019014
  • User Pedon ID: 1993MO019014
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9301914
  • NCSS Pedon Lab Data NASIS Record ID - 34250
  • 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: 39.0706245
  • Std. Longitude: -92.3746096
  • Datum: WGS84
  • Range: R13W
  • Section: 3
  • Location Description: 1900 feet south and 2200 feet west of the NE corner of sec. 3, T.49N.,R.13W.
  • State: Missouri
  • County: MO019—Boone
  • MLRA: 115—Central Mississippi Valley Wooded Slopes

    • PEDON

  • Describers Name: MWO and CAR
  • Current Taxon Kind: taxon above family
  • 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 - 15 to 66 cm.
  • Classificaton Date - 6/9/1993
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess and/or till
  • Landscape: till plain
  • Landform: hillside
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/9/1993 (actual site observation date)
  • Air Photo ID: 20
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - hayland
  • 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

    mollic epipedon

    argillic horizon

    0—15

    15—152

    —-

    —-
    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

    7

    —

    —

    —

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); dark brown (10YR 3/3), brown (10YR 5/3), dry; silt loam; weak fine subangular blocky structure; friable; 6.0 very fine roots and 3.0 fine roots; fragments; slightly acid, pH 6.4, hellige-truog; clear smooth boundary. Lab sample # MU047275. (Note: There is mixing of strong brown 7.5YR 4/6 silty clay loam in the lower part.)
    2Bt1—15 to 28 centimeters (5.9 to 11.0 inches); brown (7.5YR 4/4) silty clay loam; 15 percent dark grayish brown (10YR 4/2) fine prominent mottles; moderate fine subangular blocky structure; firm; 6.0 very fine roots and 3.0 fine roots; 30 percent prominent very dark grayish brown (10YR 3/2) clay films on faces of peds; 25 percent fine red (2.5YR 4/6) masses of oxidized iron; fragments; strongly acid, pH 5.1, hellige-truog; clear smooth boundary. Lab sample # MU047276
    2Bt2—28 to 46 centimeters (11.0 to 18.1 inches); strong brown (7.5YR 5/6) clay; 25 percent dark grayish brown (10YR 4/2) medium prominent mottles; moderate medium prismatic parts to weak medium subangular blocky structure; firm; 3.0 very fine roots and 0.1 fine roots; 30 percent prominent very dark grayish brown (10YR 3/2) clay films on faces of peds; 15 percent fine yellowish red (5YR 5/8) masses of oxidized iron between peds; fragments; very strongly acid, pH 4.7, hellige-truog; clear smooth boundary. Lab sample # MU047277
    2Btg1—46 to 74 centimeters (18.1 to 29.1 inches); dark grayish brown (10YR 4/2) silty clay loam; weak medium prismatic parts to weak medium subangular blocky structure; firm; 3.0 very fine roots and 0.1 fine roots; 30 percent faint clay films on faces of peds; 3 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.1, hellige-truog; gradual smooth boundary. Lab sample # MU047278
    2Btg2—74 to 91 centimeters (29.1 to 35.8 inches); grayish brown (10YR 5/2) silty clay; weak medium prismatic parts to weak medium subangular blocky structure; firm; 0.1 very fine roots; 15 percent manganese or iron-manganese stains and 20 percent faint clay films on faces of peds; 1 percent fine yellowish red (5YR 4/6) masses of oxidized iron; 2 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.2, hellige-truog; diffuse boundary. Lab sample # MU047279
    2Btg3—91 to 117 centimeters (35.8 to 46.1 inches); grayish brown (10YR 5/2) clay loam; moderate medium prismatic parts to moderate medium angular blocky structure; very firm; 0.1 very fine roots; 15 percent faint clay films on faces of peds; 1 percent coarse strong brown (7.5YR 4/6) masses of oxidized iron; 2 percent by volume 2-39-75 millimeter unspecified fragments; moderately acid, pH 5.6, hellige-truog; gradual smooth boundary. Lab sample # MU047280
    2Btg4—117 to 152 centimeters (46.1 to 59.8 inches); grayish brown (2.5Y 5/2) clay loam; moderate medium prismatic parts to moderate medium angular blocky structure; very firm; 0.1 very fine roots; light brownish gray (10YR 6/2) silt coats on faces of peds; 15 percent fine and medium yellowish red (5YR 4/6) masses of oxidized iron between peds; 2 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.3, hellige-truog. Lab sample # MU047281