IDENTIFIERS

  • Current Taxon Name (Soil Name): ARMSTER
  • OSD
  • Series Extent
  • User Site ID: 2008MO027065
  • User Pedon ID: 2008MO027065
  • Vegetation Plot ID: 2008MO027065
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0802765
  • NCSS Pedon Lab Data NASIS Record ID - 30214
  • User Project ID: 201811UNI001
  • Project Name: MLRA 113 and 109 - Armster surface texture and landscape evaluation
  • Print Date: 2/3/2025

    • 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: 38.9210278
  • Std. Longitude: -91.7620278
  • Datum: WGS84
  • Township: T48N
  • Range: R8W
  • Section: 13
  • PLSS Details: 2,642 feet East and 1,748 feet South from the South West corner
  • Location Description: The actual PLSS is NW1/4, SW1/4, NE1/4, section 23, T48N, R9W
  • Country: US—United States
  • State: Missouri
  • County: MO027—Callaway
  • MLRA: 113—Central Claypan Areas
  • Non-MLRA Soil Survey Area: MO027—Callaway County, Missouri
  • 7.5 Minute USGS Quad: 38091-H7—Calwood, Missouri

    • PEDON

  • Describers Name: LeAnn Bullard, Mike Chalfant, Amber Marshaus
  • Current Taxonomic Class: Fine, smectitic, mesic Mollic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: within range of map unit
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 65
  • Sampled As Information:
  • Soil Name - ARMSTER
  • Taxonomic Class - Fine, smectitic, mesic Mollic Hapludalfs
  • PSC - 0 to 0 cm.
  • Classificaton Date - 10/31/2007
  • 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: divide
  • Anthropogenic Feature: cut (road, railroad, etc.)
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Position: middle third
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: negligible
  • Drainage Class: excessively
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Upper Wisconsinan Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/31/2007 (actual site observation date)
  • Air Photo ID: 38091h7se
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rural transportation
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion gully
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    FESTU

    Festuca

    fescue

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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

    0

    —

    —

    249.9

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    0

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    —

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    Ap—0 to 15 centimeters (0.0 to 5.9 inches); very dark grayish brown (10YR 3/2) broken face silt loam; weak very fine subangular blocky structure; friable; 10.0 fine roots; 10.0 fine tubular pores; fragments; abrupt smooth boundary.; observed in pit, small
    Bt1—15 to 38 centimeters (5.9 to 15.0 inches); 90 percent dark yellowish brown (10YR 4/4) broken face and 10 percent brown (10YR 4/3) broken face silty clay; moderate very fine subangular blocky structure; very firm; 3.0 fine roots; 10.0 fine tubular pores; 35 percent distinct clay films; 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 red (2.5YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented dark grayish brown (10YR 4/2), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU029736; observed in pit, small
    Bt2—38 to 61 centimeters (15.0 to 24.0 inches); 90 percent dark yellowish brown (10YR 4/4) broken face and 10 percent brown (10YR 4/3) broken face silty clay loam; moderate fine and medium subangular blocky, and moderate medium platy structure; firm; 3.0 fine roots; 3.0 very fine tubular pores; 35 percent distinct clay films; 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 gray (10YR 5/1), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU029737; observed in pit, small
    Btg1—61 to 152 centimeters (24.0 to 59.8 inches); dark grayish brown (10YR 4/2) rubbed silty clay loam; weak medium prismatic, and weak thin platy structure; firm; 0.5 fine roots; 3.0 very fine tubular pores; 12 percent distinct clay films and 35 percent skeletans; 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 brown (10YR 5/3), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented 7.5YR 4/8 (7.5YR 4/8), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU029738; observed in pit, small
    Bt3—152 to 244 centimeters (59.8 to 96.1 inches); brown (10YR 5/3) rubbed silty clay loam; moderate medium prismatic, and weak thin platy structure; firm; 3.0 fine tubular pores; 35 percent distinct clay films and 35 percent faint skeletans; 1 percent medium faint irregular noncoherent cemented gray (10YR 5/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/8), 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; fragments; clear smooth boundary. Lab sample # MU029739; observed in pit, small
    2Btg1—244 to 305 centimeters (96.1 to 120.1 inches); gray (10YR 5/1) rubbed silty clay loam; moderate fine subangular blocky, and moderate medium prismatic structure; firm; 0.5 fine tubular pores; 12 percent faint skeletans and 35 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 5/8), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat very strongly coherent cemented 2-?-5 millimeter chert fragments; clear smooth boundary.; observed in pit, small
    2Btg2—305 to 389 centimeters (120.1 to 153.1 inches); gray (10YR 5/1) rubbed silty clay; moderate fine and medium subangular blocky, and moderate coarse prismatic structure; very firm; 3.0 fine tubular pores; 3 percent faint skeletans and 12 percent distinct pressure faces and 35 percent distinct clay films; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/8), 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; 1 percent by volume nonflat very strongly coherent cemented 2-?-5 millimeter chert fragments; gradual smooth boundary.; observed in pit, small
    2Bt1—389 to 589 centimeters (153.1 to 231.9 inches); yellowish brown (10YR 5/8) rubbed silty clay loam; weak coarse prismatic, and weak thick platy structure; firm; 0.5 fine tubular pores; 12 percent distinct clay films; 1 percent medium faint irregular noncoherent cemented brownish yellow (10YR 6/8), 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; 1 percent by volume nonflat very strongly coherent cemented 2-?-5 millimeter chert fragments; abrupt smooth boundary.; observed in pit, small
    2Bt2—589 to 671 centimeters (231.9 to 264.2 inches); yellowish brown (10YR 5/4) rubbed silty clay; weak coarse prismatic, and weak thick platy structure; firm; 3.0 fine tubular pores; 12 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 yellowish brown (10YR 5/6), 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; 3 percent fine distinct light gray (10YR 7/1), moist, carbonate masses; 2 percent by volume nonflat very strongly coherent cemented 2-?-5 millimeter chert fragments; slight effervescence, by hcl, 1n; clear smooth boundary.; observed in pit, small
    2BCb—671 to 1128 centimeters (264.2 to 444.1 inches); yellowish brown (10YR 5/4) rubbed silty clay loam; massive, and weak very coarse platy; very firm; 0.5 fine tubular pores; 3 percent faint clay films and 12 percent faint silt coats; 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; 1 percent distinct light gray (10YR 7/1), moist, carbonate masses; 3 percent by volume nonflat very strongly coherent cemented 2-?-75 millimeter mixed fragments; slight effervescence, by hcl, 1n; clear smooth boundary.; observed in pit, small
    2Cd—1128 to 1176 centimeters (444.1 to 463.0 inches); yellowish brown (10YR 5/4) rubbed silty clay; massive; very firm; 10.0 very fine tubular pores; 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 5/1), 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; 3 percent by volume nonflat very strongly coherent cemented 2-?-5 millimeter mixed fragments; slight effervescence, by hcl, 1n; clear smooth boundary.; observed in pit, small
    3Btb—1176 to 1219 centimeters (463.0 to 479.9 inches); yellowish brown (10YR 5/4) rubbed clay loam; massive; very firm; 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/8), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat very strongly coherent cemented 5-?-20 millimeter mixed fragments and 3 percent by volume nonflat very strongly coherent cemented 2-?-5 millimeter chert fragments; noneffervescent, by hcl, 1n; abrupt smooth boundary.; observed in pit, small
    3Btssgb—1219 to 1410 centimeters (479.9 to 555.1 inches); pale red (2.5YR 6/2) rubbed silty clay; medium, and moderate fine wedge structure; firm; 0.5 fine tubular pores; 12 percent dark brown (10YR 3/3), moist, organic stains and 35 percent prominent slickensides (pedogenic) and 35 percent prominent pressure faces and 70 percent prominent 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 dark yellowish brown (10YR 4/6), moist, iron depletions with clear boundaries in matrix; 1 percent by volume nonflat very strongly coherent cemented 2-?-5 millimeter chert fragments; noneffervescent, by hcl, 1n; clear smooth boundary.; observed in pit, small
    3Bkb—1410 to 1554 centimeters (555.1 to 611.8 inches); yellowish brown (10YR 5/4) rubbed silty clay; weak medium subangular blocky, and moderate coarse prismatic structure; firm; 0.5 fine tubular pores; 12 percent distinct clay films; 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 grayish brown (2.5Y 5/2), 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 fine distinct light gray (10YR 7/1), moist, carbonate masses; 4 percent by volume nonflat very strongly coherent cemented 2-?-5 millimeter chert fragments; strong effervescence, by hcl, 1n; clear smooth boundary.; observed in pit, small
    3BCb1—1554 to 1737 centimeters (611.8 to 683.9 inches); yellowish brown (10YR 5/4) rubbed silty clay loam; thick platy, and weak coarse platy structure; firm; 0.5 fine tubular pores; 3 percent faint clay films and 12 percent distinct skeletans; 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 (5Y 6/1), moist, iron depletions with clear boundaries in matrix; 1 percent fine distinct light gray (10YR 7/1), moist, carbonate masses; 2 percent by volume nonflat very strongly coherent cemented 2-?-5 millimeter chert fragments and 3 percent by volume nonflat very strongly coherent cemented 5-?-20 millimeter mixed fragments; strong effervescence, by hcl, 1n; clear smooth boundary.; observed in pit, small
    3BCb2—1737 to 1829 centimeters (683.9 to 720.1 inches); light olive brown (2.5Y 5/6) rubbed silty clay loam; massive; very firm; 0.5 fine tubular pores; 12 percent distinct silt coats; 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 5/8), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (5Y 6/1), moist, iron depletions with clear boundaries in matrix; 1 percent fine distinct light gray (10YR 7/1), moist, carbonate masses; 1 percent by volume nonflat very strongly coherent cemented 2-?-5 millimeter mixed fragments and 3 percent by volume nonflat very strongly coherent cemented 5-?-20 millimeter mixed fragments; strong effervescence, by hcl, 1n.; observed in pit, small