IDENTIFIERS

  • Current Taxon Name (Soil Name): Armster
  • OSD
  • Series Extent
  • User Site ID: 2005MO219066
  • User Pedon ID: 2005MO219066
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0521966
  • NCSS Pedon Lab Data NASIS Record ID - 30337
  • User Project ID: 201811UNI001
  • Project Name: MLRA 113 and 109 - Armster surface texture and landscape evaluation
  • Print Date: 2/2/2025

    • 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: 38.9783333
  • Std. Longitude: -91.2263889
  • Datum: WGS84
  • Township: T49N
  • Range: R3W
  • Section: 27
  • PLSS Details: 34 feet West and 247 feet North from the South East corner
  • Location Description: 1/2 mi. E. of New Truxton, Truxton site
  • Country: US—United States
  • State: Missouri
  • County: MO219—Warren
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: MO603—Montgomery and Warren Counties, Missouri
  • 7.5 Minute USGS Quad: 38091-H2—Hawk Point, Missouri

    • PEDON

  • Describers Name: Mike Chalfant, David Dowdy, John Horton, Greg Caldwell
  • Current Taxonomic Class: Fine, smectitic, superactive, mesic Aquertic Hapludalfs
  • Pedon Type: within range of map unit
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 66
  • Sampled As Information:
  • Soil Name - Armster
  • Taxonomic Class - Fine, smectitic, superactive, mesic Aquertic Hapludalfs
  • PSC - 97 to 147 cm.
  • Classificaton Date - 4/26/2005
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: till plain
  • Landform: interfluve
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: concave
  • Slope Shape Down: concave
  • Runoff: low
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Burlington Limestone formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/26/2005 (actual site observation date)
  • Air Photo ID: 38091h2nw
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - other
  • 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
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—97

    97—457

    —97—

    —360—
    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

    —

    —

    210.9

    —

    244

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); 50 percent dark yellowish brown (10YR 4/4) broken face and 50 percent dark brown (10YR 3/3) broken face silty clay loam; weak very fine subangular blocky structure; friable; fragments; clear smooth boundary. Lab sample # MU027317; observed in push tube
    Bt1—18 to 48 centimeters (7.1 to 18.9 inches); 80 percent dark yellowish brown (10YR 4/4) broken face and 20 percent gray (10YR 6/1) broken face silty clay loam; moderate very fine subangular blocky structure; very firm; 40 percent clay films; 1 percent medium faint irregular noncoherent cemented 7.5YR 4/8 (7.5YR 4/8), 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 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 # MU027318; observed in push tube
    2Bt2—48 to 97 centimeters (18.9 to 38.2 inches); 50 percent brown (10YR 5/3) broken face and 50 percent dark yellowish brown (10YR 4/4) broken face clay loam; moderate fine subangular blocky structure; firm; 35 percent clay films; 1 percent medium faint irregular noncoherent cemented red (2.5YR 4/8), 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 # MU027319; observed in push tube
    3Btb—97 to 157 centimeters (38.2 to 61.8 inches); yellowish brown (10YR 5/4) broken face clay; moderate fine subangular blocky structure; very firm; 40 percent clay films; 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 dark yellowish brown (10YR 3/6), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat indurated 2-?-5 millimeter mixed fragments; clear smooth boundary. Lab sample # MU027320; observed in push tube
    3Btkb1—157 to 251 centimeters (61.8 to 98.8 inches); yellowish brown (10YR 5/6) broken face clay; moderate fine subangular blocky, and weak prismatic structure; firm; 30 percent clay films; 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 brownish yellow (10YR 6/8), 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; nonflat subangular indurated 2-?-5 millimeter chert fragments and 3 percent by volume nonflat subrounded indurated 2-?-5 millimeter mixed fragments; clear smooth boundary. Lab sample # MU027321; observed in push tube
    3Btkb2—251 to 358 centimeters (98.8 to 140.9 inches); dark yellowish brown (10YR 4/6) broken face clay loam; weak fine subangular blocky structure; very firm; 5 percent prominent carbonate coats and 30 percent 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 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; 15 percent fine prominent carbonate masses; nonflat subangular indurated 2-?-5 millimeter chert fragments and 5 percent by volume nonflat subrounded indurated 2-?-5 millimeter mixed fragments; slight effervescence, by hcl, 1n; clear smooth boundary.; observed in push tube
    3Btkb3—358 to 457 centimeters (140.9 to 179.9 inches); yellowish brown (10YR 5/4) broken face clay loam; massive; very firm; 1 percent prominent carbonate coats and 8 percent clay films; 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 reddish yellow (5YR 6/8), moist, iron depletions with clear boundaries in matrix; 3 percent by volume nonflat subrounded very strongly coherent cemented 2-?-5 millimeter mixed fragments; strong effervescence, by hcl, 1n; gradual smooth boundary.; observed in push tube
    3C1—457 to 625 centimeters (179.9 to 246.1 inches); pale brown (10YR 6/3) broken face loam; massive; firm; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), 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 and 1 percent medium faint irregular noncoherent cemented gray (10YR 5/1), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n; abrupt smooth boundary.; observed in push tube
    3C2—625 to 671 centimeters (246.1 to 264.2 inches); pale brown (10YR 6/3) broken face clay loam; massive; firm; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), 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; 5 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; slight effervescence, by hcl, 1n.; observed in push tube
    3Cg—671 to 716 centimeters (264.2 to 281.9 inches); 70 percent gray (10YR 6/1) broken face and 30 percent light yellowish brown (10YR 6/4) broken face clay loam; massive; firm; 1 percent medium faint irregular noncoherent cemented brownish yellow (10YR 6/8), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; slight effervescence, by hcl, 1n.; observed in push tube
    3C—716 to 991 centimeters (281.9 to 390.2 inches); 50 percent olive brown (2.5Y 4/3) broken face and 50 percent olive brown (2.5Y 4/4) broken face clay loam; massive; firm; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat subangular indurated 2-?-5 millimeter chert fragments; slight effervescence, by hcl, 1n; abrupt smooth boundary.; observed in push tube
    3Cd—991 to 1113 centimeters (390.2 to 438.2 inches); brown (10YR 4/3) broken face clay loam; massive; 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 dark yellowish brown (10YR 4/6), moist, iron depletions with clear boundaries in matrix; nonflat indurated 5-?-20 millimeter mixed fragments and 5 percent by volume nonflat indurated 2-?-5 millimeter mixed fragments; slight effervescence, by hcl, 1n; gradual smooth boundary.; observed in push tube
    4Cg1—1113 to 1173 centimeters (438.2 to 461.8 inches); very dark gray (N 3/0) broken face clay loam; massive; very firm; 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 strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix; 2 percent by volume nonflat indurated 2-?-5 millimeter mixed fragments; slight effervescence, by hcl, 1n.; observed in push tube
    4Cg2—1173 to 1328 centimeters (461.8 to 522.8 inches); dark gray (N 4/0) broken face clay loam; massive; very firm; nonflat subangular indurated 2-?-5 millimeter chert fragments and nonflat subrounded indurated 2-?-5 millimeter greenstone fragments and 5 percent by volume nonflat subangular indurated 2-?-5 millimeter limestone, unspecified fragments; slight effervescence, by hcl, 1n.; observed in push tube
    4Cg3—1328 to 1478 centimeters (522.8 to 581.9 inches); dark gray (N 4/0) broken face clay loam; massive; very firm; fragments; slight effervescence, by hcl, 1n.; observed in push tube
    4Cg4—1478 to 1539 centimeters (581.9 to 605.9 inches); very dark gray (N 3/0) broken face loam; massive; very firm; 1 percent by volume nonflat indurated 2-?-5 millimeter mixed fragments; slight effervescence, by hcl, 1n.; observed in push tube
    4Cg5—1539 to 1600 centimeters (605.9 to 629.9 inches); dark gray (N 4/0) broken face loam; massive; very firm; 1 percent by volume nonflat indurated 2-?-5 millimeter mixed fragments; slight effervescence, by hcl, 1n.; observed in push tube
    4Cg6—1600 to 2286 centimeters (629.9 to 900.0 inches); very dark gray (N 3/0) broken face loam; massive; very firm; 1 percent by volume nonflat indurated 2-?-5 millimeter mixed fragments; slight effervescence, by hcl, 1n.; observed in push tube
    4Cg7—2286 to 2347 centimeters (900.0 to 924.0 inches); very dark gray (N 3/0) broken face gravelly clay loam; massive; very firm; nonflat indurated 5-?-20 millimeter chert fragments and 30 percent by volume nonflat indurated 2-?-5 millimeter chert fragments; slight effervescence, by hcl, 1n.; observed in push tube
    5Cg8—2347 to 2423 centimeters (924.0 to 953.9 inches); pale green (5G 7/2) broken face very fine sandy loam; fragments; strong effervescence, by hcl, 1n.; observed in push tube