IDENTIFIERS

  • Current Taxon Name (Soil Name): Armstrong
  • OSD
  • Series Extent
  • User Site ID: 1993MO019029
  • User Pedon ID: 1993MO019029
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9301929
  • NCSS Pedon Lab Data NASIS Record ID - 34241
  • 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: 39.1447617
  • Std. Longitude: -92.4785058
  • Datum: WGS84
  • Range: R14W
  • Section: 11
  • Location Description: 450 feet east and 800 feet north of the southwest corner of sec. 11, T. 50 N., R. 14 W.
  • State: Missouri
  • County: MO019—Boone
  • MLRA: 115—Central Mississippi Valley Wooded Slopes

    • PEDON

  • Describers Name: Mark Osborn Melvin Simmons Caryl Radatz
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Armstrong
  • PSC - 13 to 64 cm.
  • Classificaton Date - 9/10/1993
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess and/or till
  • Landscape: upland
  • Landform: hillside
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/10/1993 (actual site observation date)
  • Air Photo ID: 9
  • 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

    argillic horizon

    13—178

    —-
    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

    —

    —

    —

    —

    914

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    Ap—0 to 13 centimeters (0.0 to 5.1 inches); very dark grayish brown (10YR 3/2), dark grayish brown (10YR 4/2), dry; silt loam; moderate medium subangular blocky parts to moderate fine subangular blocky structure; very friable; 0.5 very fine roots and 10.0 fine roots; fragments; slightly alkaline, pH 7.6, hellige-truog; clear smooth boundary. Lab sample # MU047346
    2Bt1—13 to 28 centimeters (5.1 to 11.0 inches); brown (7.5YR 4/4) clay loam; 10 percent grayish brown (10YR 5/2) medium mottles; moderate medium subangular blocky parts to strong fine subangular blocky structure; very firm; 10.0 very fine and fine roots; 15 percent manganese or iron-manganese stains and 35 percent faint clay films on faces of peds; 10 percent medium red (2.5YR 4/6) masses of oxidized iron; 1 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.3, hellige-truog; gradual smooth boundary. Lab sample # MU047347
    2Bt2—28 to 46 centimeters (11.0 to 18.1 inches); yellowish brown (10YR 5/4) clay; 10 percent grayish brown (10YR 5/2) medium mottles; weak medium prismatic parts to moderate medium subangular blocky structure; very firm; 3.0 very fine and fine roots; 35 percent faint clay films on faces of peds; 10 percent fine strong brown (7.5YR 5/6) masses of oxidized iron; 1 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.9, hellige-truog; diffuse boundary. Lab sample # MU047348
    2Bt3—46 to 61 centimeters (18.1 to 24.0 inches); brown (10YR 5/3) clay; weak medium prismatic parts to weak medium subangular blocky structure; very firm; 3.0 very fine roots and 0.5 fine roots; 35 percent faint clay films on faces of peds; 1 percent fine red (2.5YR 4/6) masses of oxidized iron; 10 percent fine strong brown (7.5YR 5/6); 1 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.1, hellige-truog; diffuse boundary. Lab sample # MU047349
    2Bt4—61 to 79 centimeters (24.0 to 31.1 inches); grayish brown (10YR 5/2) and yellowish brown (10YR 5/8) silty clay; weak medium prismatic parts to weak coarse subangular blocky structure; very firm; 3.0 very fine roots; 15 percent faint clay films on faces of peds and 15 percent dark grayish brown (10YR 4/2) organic stains on faces of peds; 10 percent fine strong brown (7.5YR 5/6) masses of oxidized iron; 1 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.2, hellige-truog; clear smooth boundary. Lab sample # MU047350
    2Btg1—79 to 112 centimeters (31.1 to 44.1 inches); light brownish gray (2.5Y 6/2) clay loam; weak medium prismatic structure; very firm; 0.5 very fine roots; 15 percent faint clay films on faces of peds and 35 percent manganese or iron-manganese stains; yellowish red (5YR 5/8) masses of oxidized iron; 10 percent fine strong brown (7.5YR 5/6); 1 percent by volume 2-39-75 millimeter unspecified fragments; moderately acid, pH 5.6, hellige-truog; gradual smooth boundary. Lab sample # MU047351
    2Btg2—112 to 178 centimeters (44.1 to 70.1 inches); light brownish gray (2.5Y 6/2) clay loam; moderate coarse angular blocky structure; very firm; 0.5 very fine roots; 15 percent manganese or iron-manganese stains; 10 percent medium yellowish red (5YR 5/6) masses of oxidized iron; 2 percent by volume 2-39-75 millimeter unspecified fragments; neutral, pH 7.0, hellige-truog. Lab sample # MU047352