IDENTIFIERS

  • Current Taxon Name (Soil Name): Armster
  • OSD
  • Series Extent
  • User Site ID: 2007MO199008
  • User Pedon ID: 2007MO199008
  • Transect:
  • User Transect ID - T07-199-07
  • Transect Stop Number - 1
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0719908
  • NCSS Pedon Lab Data NASIS Record ID - 25179
  • Print Date: 2/16/2025

    • 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: 40.5145556
  • Std. Longitude: -92.0778889
  • Datum: WGS84
  • Township: T66N
  • Range: R11W
  • Section: 23
  • PLSS Details: 646 feet West and 2,454 feet South from the North East corner
  • Country: US—United States
  • State: Missouri
  • County: MO199—Scotland
  • MLRA: 109—Iowa and Missouri Heavy Till Plain
  • Non-MLRA Soil Survey Area: MO199—Scotland County, Missouri
  • 7.5 Minute USGS Quad: 40092-E1—Azen, Missouri

    • PEDON

  • Describers Name: Scott Paine
  • 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 #: 8
  • Correlated Information:
  • Soil Name - Armster
  • PSC - 61 to 111 cm.
  • Classificaton Date - 2/1/2012
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - aquic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Armster
  • Classificaton Date - 7/3/2007
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: fine-silty loess derived from mixed over clayey pedisediment derived from igneous, metamorphic and sedimentary rock
  • Landscape: till plain
  • Landform: plain
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: shoulder
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: negligible
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/3/2007 (actual site observation date)
  • Air Photo ID: 40092e1sw
  • Surface Water Kind: none observed
  • 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 gully
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—38

    38—135

    —38—

    —97—
    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

    9

    —

    —

    227.1

    —

    180

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); very dark grayish brown (10YR 3/2) rubbed, dark grayish brown (10YR 4/2) interior, dry; silt loam; moderate fine granular structure; friable; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 very fine tubular pores; fragments; clear smooth boundary. Lab sample # MU000329; observed in push tube
    E—23 to 38 centimeters (9.1 to 15.0 inches); brown (10YR 4/3) interior silt loam; moderate medium subangular blocky structure; friable; 3.0 very fine roots throughout; 3.0 very fine tubular pores; fragments; clear smooth boundary.; observed in push tube
    Bt1—38 to 61 centimeters (15.0 to 24.0 inches); yellowish brown (10YR 5/4) interior clay loam; moderate fine subangular blocky structure; firm; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 very fine tubular pores; 3 percent faint yellowish brown (10YR 5/4), moist, clay films on all faces of peds and 12 percent faint very dark grayish brown (10YR 3/2), moist, organic stains on vertical faces of peds and 70 percent faint gray (10YR 6/1), moist, silt coats on all faces of peds; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter mixed fragments; abrupt smooth boundary.; observed in push tube
    2Bt2—61 to 86 centimeters (24.0 to 33.9 inches); 60 percent dark yellowish brown (10YR 4/4) interior and 40 percent grayish brown (10YR 5/2) interior clay loam; moderate medium subangular blocky, and moderate medium prismatic structure; firm; 0.5 very fine roots throughout; 0.5 very fine tubular pores; 35 percent faint dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter mixed fragments; clear smooth boundary.; observed in push tube
    2Bt3—86 to 135 centimeters (33.9 to 53.1 inches); 70 percent strong brown (7.5YR 4/6) interior and 30 percent black (10YR 5/2) interior clay loam; moderate medium subangular blocky, and moderate medium prismatic structure; firm; 0.5 very fine roots throughout; 0.5 very fine tubular pores; 35 percent faint dark gray (10YR 4/1), moist, clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented yellowish red (5YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter mixed fragments; abrupt smooth boundary.; observed in push tube
    2BC1—135 to 170 centimeters (53.1 to 66.9 inches); 80 percent light brownish gray (2.5Y 6/2) interior and 20 percent brown (10YR 5/3) interior clay loam; weak medium angular blocky, and moderate medium prismatic structure; firm; 0.5 very fine roots throughout; 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 5 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter mixed fragments; abrupt smooth boundary.; observed in push tube
    2BC2—170 to 203 centimeters (66.9 to 79.9 inches); 50 percent grayish brown (10YR 5/2) interior and 50 percent dark yellowish brown (10YR 4/4) interior clay loam; moderate medium subangular blocky, and moderate medium prismatic structure; firm; 0.5 very fine tubular pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 10 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter mixed fragments.; observed in push tube