IDENTIFIERS

  • Current Taxon Name (Soil Name): Twomile
  • OSD
  • Series Extent
  • User Site ID: 2005MO139001
  • User Pedon ID: 2005MO139001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0513950
  • NCSS Pedon Lab Data NASIS Record ID - 30378
  • 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: 38.9807556
  • Std. Longitude: -91.4736194
  • Datum: WGS84
  • Township: T49N
  • Range: R5W
  • Section: 28
  • PLSS Details: 1360 feet west and 90 feet north of the southeast corner
  • Location Description: About 1 mile East of Montgomery City on Highway 161 at Elkhorn Creek. Site is on North side of road east of creek at gravelly area.
  • 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-H4—New Florence, Missouri

    • PEDON

  • Describers Name: Mike Chalfant, LeAnn Bullard, Greg Caldwell
  • Current Taxonomic Class: Fine, smectitic, active, mesic Aeric Albaqualfs
  • Current Taxon Kind: family
  • Pedon Type: within range of map unit
  • Pedon Purpose: research site
  • Pedon Record Orgin: Windows Pedon
  • Pedon #: 50
  • Sampled As Information:
  • Soil Name - Twomile
  • Taxonomic Class - Fine, smectitic, active, mesic Aeric Albaqualfs
  • PSC - 15 to 66 cm.
  • Classificaton Date - 1/11/2005
  • Soil Taxonomic Edition - ninth edition
  • Moisture SUBClass - aeric
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: till plain
  • Landform: flood-plain step
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: toeslope
  • Slope Position: lower third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Seville Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/11/2005 (actual site observation date)
  • Air Photo ID: 38091h4nw
  • 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 Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    argillic horizon

    aquic conditions

    lithic contact

    15—292

    36—

    914—

    —0—

    —0—

    —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

    4

    —

    —

    234.1

    —

    324

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    C1—0 to 5 centimeters (0.0 to 2.0 inches); very dark grayish brown (10YR 3/2) interior; friable; 3 percent by volume limestone, unspecified fragments and 40 percent by volume 2-?-20 millimeter chert fragments; abrupt smooth boundary. Lab sample # MU026663
    C2—5 to 15 centimeters (2.0 to 5.9 inches); 70 percent grayish brown (10YR 5/2) interior and 30 percent brown (10YR 5/3) interior; firm; 1 percent medium faint irregular noncoherent cemented black (2.5Y 2/1), moist, iron depletions with clear boundaries in matrix; 3 percent by volume limestone, unspecified fragments and 40 percent by volume 2-?-20 millimeter chert fragments; abrupt smooth boundary. Lab sample # MU026664
    Bt1—15 to 38 centimeters (5.9 to 15.0 inches); yellowish brown (10YR 5/4) interior silty clay; strong fine subangular blocky structure; very firm; 4.0 fine roots; 4.0 fine tubular pores; 40 percent faint dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU026665. discontinuous - phpvsfiid 886966; discontinuous - phpvsfiid 886966
    Bt2—38 to 61 centimeters (15.0 to 24.0 inches); 80 percent yellowish brown (10YR 5/4) interior and 20 percent grayish brown (10YR 5/2) interior silty clay; strong fine subangular blocky structure; very firm; 3.0 fine roots; 2.0 fine tubular pores; 40 percent faint dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU026666. discontinuous - phpvsfiid 886967; discontinuous - phpvsfiid 886967
    Btg1—61 to 122 centimeters (24.0 to 48.0 inches); 70 percent grayish brown (10YR 5/2) interior and 30 percent dark yellowish brown (10YR 4/6) interior silty clay loam; moderate medium subangular blocky structure; very firm; 0.9 fine roots; 2.0 fine tubular pores; 30 percent faint dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU026667. discontinuous - phpvsfiid 886968; discontinuous - phpvsfiid 886968
    Btg2—122 to 183 centimeters (48.0 to 72.0 inches); grayish brown (10YR 5/2) interior; weak medium prismatic structure; firm; 3.0 fine pores; 10 percent faint dark grayish brown (10YR 4/2), moist, clay films on vertical faces of peds; 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 black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU026668. discontinuous - phpvsfiid 886969; discontinuous - phpvsfiid 886969
    Btg3—183 to 292 centimeters (72.0 to 115.0 inches); grayish brown (10YR 5/2) interior; weak coarse prismatic structure; firm; 3.0 fine pores; 5 percent prominent dark yellowish brown (10YR 4/6), moist, clay films on vertical faces of peds and 10 percent distinct gray (10YR 6/1), moist, silt coats on vertical faces of peds; 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 black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 1 percent by volume rounded 2-?-5 millimeter quartz fragments; gradual smooth boundary. Lab sample # MU026669. patchy - phpvsfiid 886971; discontinuous - phpvsfiid 886970; patchy - phpvsfiid 886971; discontinuous - phpvsfiid 886970
    BCg—292 to 366 centimeters (115.0 to 144.1 inches); light brownish gray (2.5Y 6/2) interior; weak coarse prismatic structure; firm; 3.0 fine 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 yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary.
    Cg1—366 to 432 centimeters (144.1 to 170.1 inches); light brownish gray (2.5Y 6/2) interior; massive; friable; 3.0 fine pores; 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 black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; fragments; noneffervescent; clear smooth boundary.
    2Cg2—432 to 457 centimeters (170.1 to 179.9 inches); grayish brown (2.5Y 5/2) interior; massive; friable; fragments; noneffervescent; abrupt smooth boundary.
    2C1—457 to 640 centimeters (179.9 to 252.0 inches); yellowish brown (10YR 5/4) interior; massive; loose; 1 percent by volume 2-?-10 millimeter mixed fragments; noneffervescent; abrupt smooth boundary.
    3C2—640 to 686 centimeters (252.0 to 270.1 inches); brown (10YR 5/3) interior; single grain; firm; 3 percent by volume limestone, unspecified fragments and 50 percent by volume 2-?-20 millimeter chert fragments; noneffervescent; abrupt smooth boundary.
    3C3—686 to 701 centimeters (270.1 to 276.0 inches); yellowish brown (10YR 5/6) interior; massive; very friable; 3 percent by volume limestone, unspecified fragments and 50 percent by volume 2-?-20 millimeter chert fragments; noneffervescent; abrupt smooth boundary.
    3Cg—701 to 762 centimeters (276.0 to 300.0 inches); variegated 80 percent light brownish gray (10YR 6/2) interior and 20 percent gray (10YR 6/1) interior; massive; extremely firm; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 15 percent by volume subrounded 2-?-15 millimeter chert fragments; noneffervescent; clear smooth boundary.
    4Bssgb—762 to 823 centimeters (300.0 to 324.0 inches); gray (2.5Y 5/1) interior; weak very fine subangular blocky structure; extremely firm; 5 percent distinct pressure faces and 20 percent distinct slickensides (pedogenic); 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/4), 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 and 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix; 15 percent by volume 2-?-10 millimeter mixed fragments; noneffervescent; gradual smooth boundary. patchy - phpvsfiid 886972; discontinuous - phpvsfiid 886973; patchy - phpvsfiid 886972; discontinuous - phpvsfiid 886973
    4CBssgb—823 to 884 centimeters (324.0 to 348.0 inches); gray (2.5Y 6/1) interior; massive, and weak very fine subangular blocky; firm; 10 percent distinct slickensides (pedogenic); 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 black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 5 percent by volume 2-?-10 millimeter mixed fragments; clear smooth boundary. patchy - phpvsfiid 886974; patchy - phpvsfiid 886974
    5C—884 to 914 centimeters (348.0 to 359.8 inches); light gray (5Y 7/1) interior; massive; 1 percent medium faint irregular noncoherent cemented light yellowish brown (10YR 6/4), moist, iron depletions with clear boundaries in matrix; fragments; abrupt smooth boundary.
    5Cr—914 to 914 centimeters (359.8 to 359.8 inches); fragments.