IDENTIFIERS

  • Current Taxon Name (Soil Name): ARMSTER
  • OSD
  • Series Extent
  • User Site ID: 2006MO139056
  • User Pedon ID: 2006MO139056
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0613956
  • NCSS Pedon Lab Data NASIS Record ID - 30324
  • Print Date: 1/30/2025

    • 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: 38.9848611
  • Std. Longitude: -91.5408889
  • Datum: WGS84
  • Township: T49N
  • Range: R6W
  • Section: 25
  • PLSS Details: 194 feet East and 899 feet North from the South West corner
  • Location Description: AIRSTRIP
  • Country: US—United States
  • State: Missouri
  • County: MO139—Montgomery
  • MLRA: 113—Central Claypan Areas
  • Non-MLRA Soil Survey Area: MO603—Montgomery and Warren Counties, Missouri
  • 7.5 Minute USGS Quad: 38091-H5—Montgomery City, Missouri

    • PEDON

  • Describers Name: Mike Chalfant, Greg Caldwell, Amber Marshaus
  • Current Taxonomic Class: Fine, smectitic, mesic Mollic 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 #: 56
  • Sampled As Information:
  • Soil Name - ARMSTER
  • Taxonomic Class - Fine, smectitic, mesic Mollic Hapludalfs
  • PSC - 0 to 0 cm.
  • Classificaton Date - 2/8/2006
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: fine-silty loess derived from mixed over clayey till derived from mixed
  • Landscape: till plain
  • Landform: ridge
  • Anthropogenic Feature: ditch
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: negligible
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: noncoherent slight weathered limestone, unspecified at 1707cm with <10 and a strike of 0 degrees and a dip of 0 to 0 degrees
  • Geology: Recent Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/8/2006 (actual site observation date)
  • Air Photo ID: 38091h5ne
  • 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
  • Site Erosion Accelerated: water erosion gully
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

    —

    1707 - 1707

    - 0 -

    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    lithic contact

    1707—1707

    —0—
    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

    2

    —

    —

    249.9

    —

    289

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap1—0 to 30 centimeters (0.0 to 11.8 inches); very dark grayish brown (10YR 3/2) rubbed silt loam; weak very fine subangular blocky structure; friable; 10.0 very fine roots; 10.0 very fine tubular pores; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # MU027733; observed in pit, small
    Ap2—30 to 53 centimeters (11.8 to 20.9 inches); very dark grayish brown (10YR 3/2) rubbed silt loam; moderate fine subangular blocky structure; friable; 3.0 very fine roots; 10.0 very fine tubular pores; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # MU027734; observed in pit, small
    Bt1—53 to 64 centimeters (20.9 to 25.2 inches); brown (10YR 4/3) broken face silty clay; moderate fine subangular blocky structure; very firm; 0.5 very fine roots; 3.0 fine tubular pores; 50 percent distinct dark grayish brown (10YR 4/2), moist, clay films; 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish red (5YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # MU027735; observed in pit, small
    Bt2—64 to 81 centimeters (25.2 to 31.9 inches); brown (10YR 4/3) broken face silty clay; moderate fine subangular blocky structure; very firm; 0.5 very fine roots; 0.5 fine tubular pores; 40 percent distinct dark grayish brown (10YR 4/2), moist, clay films; 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish red (5YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # MU027736; observed in pit, small
    Btg—81 to 152 centimeters (31.9 to 59.8 inches); 35 percent yellowish brown (10YR 5/6) broken face and 65 percent grayish brown (10YR 5/2) broken face silty clay loam; weak fine subangular blocky structure; firm; 0.5 very fine roots; 3.0 fine tubular pores; 30 percent distinct clay films; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # MU027737; observed in pit, small
    2Btg1—152 to 201 centimeters (59.8 to 79.1 inches); 45 percent yellowish brown (10YR 5/6) broken face and 55 percent grayish brown (10YR 5/2) broken face silty clay loam; moderate fine subangular blocky, and weak medium prismatic structure; firm; 20 percent distinct clay films; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter chert fragments; noneffervescent, by hcl, 1n; gradual smooth boundary. Lab sample # MU027738; observed in pit, small
    2Btg2—201 to 274 centimeters (79.1 to 107.9 inches); 40 percent yellowish brown (10YR 5/6) broken face and 60 percent gray (10YR 5/1) broken face silty clay; strong fine subangular blocky structure; firm; 35 percent pressure faces; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter chert fragments; noneffervescent, by hcl, 1n; gradual smooth boundary. Lab sample # MU027739; observed in pit, small
    2C1—274 to 549 centimeters (107.9 to 216.1 inches); yellowish brown (10YR 5/6) broken face silty clay; massive; firm; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter chert fragments; slight effervescence, by hcl, 1n; gradual smooth boundary.; observed in pit, small
    2C2—549 to 808 centimeters (216.1 to 318.1 inches); yellowish brown (10YR 5/4) broken face clay loam; massive; firm; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (10YR 5/1), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter chert fragments; slight effervescence, by hcl, 1n; clear smooth boundary.; observed in pit, small
    2C3—808 to 914 centimeters (318.1 to 359.8 inches); 10 percent gray (10YR 6/1) broken face and 30 percent dark yellowish brown (10YR 4/6) broken face and 70 percent yellowish brown (10YR 5/4) broken face clay loam; weak thin platy, and massive; firm; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter chert fragments; very slight effervescence, by hcl, 1n; clear smooth boundary.; observed in pit, small
    2Cd—914 to 1148 centimeters (359.8 to 452.0 inches); 25 percent yellowish brown (10YR 5/4) broken face and 25 percent yellowish brown (10YR 5/6) broken face and 50 percent gray (10YR 5/1) broken face silty clay; weak thick platy structure; very firm; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter chert fragments; noneffervescent, by hcl, 1n; gradual smooth boundary.; observed in pit, small
    2Bk—1148 to 1199 centimeters (452.0 to 472.0 inches); yellowish brown (10YR 5/4) broken face silty clay loam; weak fine subangular blocky structure; firm; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented grayish brown (2.5Y 5/2), moist, iron depletions with clear boundaries in matrix; 3 percent fine prominent white (10YR 8/1), moist, carbonate masses; 5 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter chert fragments; strong effervescence, by hcl, 1n; gradual smooth boundary.; observed in pit, small
    2C4—1199 to 1524 centimeters (472.0 to 600.0 inches); 20 percent gray (10YR 5/1) broken face and 80 percent yellowish brown (10YR 5/6) broken face silty clay loam; weak medium platy structure; firm; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 4 percent fine prominent white (10YR 8/1), moist, carbonate masses; 3 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter chert fragments; very slight effervescence, by hcl, 1n; gradual smooth boundary.; observed in pit, small
    3Cg—1524 to 1707 centimeters (600.0 to 672.0 inches); very dark gray (2.5Y 3/1) broken face clay loam; massive; firm; 2 percent by volume nonflat subangular very strongly coherent cemented 2-?-75 millimeter unspecified fragments; slight effervescence, by hcl, 1n.; observed in pit, small