IDENTIFIERS

  • Current Taxon Name (Soil Name): Malvern
  • OSD
  • Series Extent
  • User Site ID: 2003MO00501m
  • User Pedon ID: 2003MO00501m
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0300501
  • NCSS Pedon Lab Data NASIS Record ID - 31126
  • Print Date: 12/4/2024

    • 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: 40.5695152
  • Std. Longitude: -95.4887466
  • Datum: WGS84
  • Township: T66N
  • Range: R41W
  • Section: 1
  • PLSS Details: 75 feet west and 75 feet south from the northeast corner of
  • Location Description: Atchison County, Missouri; about 10 miles west and 2 miles north of Westboro
  • Country: US—United States
  • State: Missouri
  • County: MO005—Atchison
  • MLRA: 107—Iowa and Missouri Deep Loess Hills
  • Regional Office: NC—North Central

    • PEDON

  • Describers Name: Gary Lindgren
  • Current Taxonomic Class: Fine, smectitic, active, mesic Aquic Argiudolls
  • Current Taxon Kind: series
  • Pedon Type: within range of map unit
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Windows Pedon
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Malvern
  • PSC - 43 to 94 cm.
  • Classificaton Date - 4/13/2012
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Malvern
  • Classificaton Date - 6/18/2003
  • Dynamic Soil Properties:
  • Erosion Class - 3
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Thin mantle of loess and the underlying clayey loess paleosol
  • Landform: upland slope
  • Geomorphic Component Hills: nose slope
  • Hill Slope Profile: shoulder
  • Slope Position: middle third
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/18/2003 (actual site observation date)
  • Surface Cover Properties:
  • 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

    mollic epipedon

    argillic horizon

    0—23

    23—119

    —-

    —-
    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

    —

    —

    320

    —

    40

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap1—0 to 13 centimeters (0.0 to 5.1 inches); dark brown (10YR 3/3) silty clay loam; 33 percent clay; weak very fine subangular blocky parts to moderate fine and medium granular structure; friable; 0.5 very fine roots; 7.0 very fine and fine vesicular pores; 65 percent very dark grayish brown (10YR 3/2) organic stains on faces of peds; fragments; clear smooth boundary. Lab sample # MU024013; moist when described;
    Ap2—13 to 23 centimeters (5.1 to 9.1 inches); 90 percent dark brown (10YR 3/3) and 10 percent brown (10YR 4/3) silty clay loam; 37 percent clay; weak very fine subangular blocky parts to moderate fine granular structure; friable; 0.5 very fine roots; 7.0 very fine and fine vesicular pores; 30 percent very dark grayish brown (10YR 3/2) organic stains on faces of peds; fragments; abrupt smooth boundary. Lab sample # MU024014; moist when described;
    Bt1—23 to 43 centimeters (9.1 to 16.9 inches); 50 percent brown (10YR 4/3) and 50 percent dark yellowish brown (10YR 4/4) silty clay loam; 37 percent clay; moderate very fine and fine subangular blocky structure; firm; 0.5 very fine roots; 7.0 very fine and fine vesicular pores; 20 percent dark grayish brown (10YR 4/2) clay films on faces of peds and 30 percent very dark grayish brown (10YR 3/2) organic stains on faces of peds; 10 percent fine brown (7.5YR 4/4) masses of oxidized iron; 1 percent fine black (10YR 2/1) iron-manganese masses; fragments; abrupt smooth boundary. Lab sample # MU024015; moist when described;
    2Bt2—43 to 61 centimeters (16.9 to 24.0 inches); 50 percent brown (7.5YR 5/4) and 50 percent strong brown (7.5YR 5/6) silty clay; 42 percent clay; moderate very fine and fine subangular blocky structure; firm; 3.0 very fine and fine vesicular pores; 10 percent dark grayish brown (10YR 4/2) organic stains on faces of peds and 30 percent brown (7.5YR 4/4) clay films on faces of peds; 10 percent fine grayish brown (10YR 5/2) clay depletions; 1 percent fine black (10YR 2/1) iron-manganese masses; fragments; clear smooth boundary. Lab sample # MU024016; moist when described;
    2Bt3—61 to 86 centimeters (24.0 to 33.9 inches); 80 percent yellowish brown (10YR 5/6) and 20 percent yellowish brown (10YR 5/4) silty clay; 42 percent clay; strong very fine and fine subangular blocky structure; firm; 3.0 very fine and fine vesicular pores; 10 percent brown (10YR 5/3) clay films on faces of peds; 1 percent fine black (10YR 2/1) iron-manganese masses; fragments; clear smooth boundary. Lab sample # MU024017; moist when described;
    2Bt4—86 to 107 centimeters (33.9 to 42.1 inches); yellowish brown (10YR 5/6) silty clay; 42 percent clay; strong very fine subangular blocky structure; firm; 3.0 very fine and fine vesicular pores; 30 percent yellowish brown (10YR 5/4) clay films on faces of peds; 1 percent fine light brownish gray (10YR 6/2) clay depletions; 1 percent fine black (10YR 2/1) iron-manganese masses; fragments; clear smooth boundary. Lab sample # MU024018; moist when described;
    2Bt5—107 to 119 centimeters (42.1 to 46.9 inches); 60 percent yellowish brown (10YR 5/4) and 40 percent brown (10YR 5/3) silty clay; 40 percent clay; firm; 7.0 fine vesicular pores; 10 percent dark yellowish brown (10YR 4/4) clay films on faces of peds; 1 percent fine light brownish gray (10YR 6/2) clay depletions and 10 percent fine and medium strong brown (7.5YR 5/6) masses of oxidized iron; 1 percent fine black (10YR 2/1) iron-manganese masses; fragments; clear smooth boundary. Lab sample # MU024019; moist when described;
    2Bt6—119 to 147 centimeters (46.9 to 57.9 inches); 50 percent yellowish brown (10YR 5/4) and 50 percent yellowish brown (10YR 5/6) silty clay loam; 37 percent clay; moderate fine and medium subangular blocky structure; firm; 7.0 very fine and fine vesicular pores; 10 percent brown (10YR 5/3) clay films on faces of peds; 10 percent medium light brownish gray (10YR 6/2) clay depletions; 10 percent fine black (10YR 2/1) iron-manganese masses; fragments; abrupt smooth boundary. Lab sample # MU024020; moist when described;
    2Bt7—147 to 175 centimeters (57.9 to 68.9 inches); 50 percent brown (7.5YR 5/4) and 50 percent strong brown (7.5YR 5/6) silty clay loam; 35 percent clay; moderate fine and medium subangular blocky structure; firm; 3.0 very fine and fine vesicular pores; 10 percent grayish brown (10YR 5/2) clay films on faces of peds; 10 percent medium light brownish gray (10YR 6/2) clay depletions; 10 percent fine black (10YR 2/1) iron-manganese masses; fragments. Lab sample # MU024021; moist when described;