IDENTIFIERS

  • Current Taxon Name (Soil Name): Virden
  • OSD
  • Series Extent
  • User Site ID: S1987IL109034
  • User Pedon ID: S1987IL109034
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - IL SCL
  • Lab Pedon # - 87IL109034
  • NCSS Pedon Lab Data NASIS Record ID - 22067
  • Print Date: 2/1/2025

    • 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: 40.3612778
  • Std. Longitude: -90.7407583
  • Datum: WGS84
  • Township: 4N
  • Range: 3W
  • Section: 4
  • PLSS Details: 2,520 feet S & 1,900 feet W of NE corner
  • Map Unit: 50A—Virden silty clay loam, 0 to 2 percent slopes
  • Country: US—United States
  • State: Illinois
  • County: IL109—McDonough
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Regional Office: NC—North Central
  • Non-MLRA Soil Survey Area: IL109—McDonough County, Illinois
  • 7.5 Minute USGS Quad: 40090-C6—Doddsville, Illinois

    • PEDON

  • Describers Name: Michael B. Walker
  • Current Taxonomic Class: Fine, smectitic, mesic Vertic Argiaquolls
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 34
  • Correlated Information:
  • Soil Name - Virden
  • PSC - 33 to 83 cm.
  • Classificaton Date - 1/4/2010
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - aquic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Virden
  • Classificaton Date - 3/1/1987
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Fine-textured loess
  • Landscape: till plain
  • Landform: ground moraine
  • Drainage Class: poorly
  • Ponding: occasional ponding for long periods
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/1/1987 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Horizon Lab Results - 1
    Horizon Top Depth Bottom Depth Sample ID Data Collector Total Clay CaCO3 Clay Total Silt Fine Silt Co. Silt Total Sand Total Sand Method VC Sand Co. Sand Med. Sand Fine Sand VF Sand VF Sand Method Texture Class - Field Lab Rubbed Fiber Unrubbed Fiber pH H2O
    cm cm % % % % % % % % % % % % %

    Ap

    A

    AB

    Btg1

    Btg2

    Btg3

    Cg

    0

    23

    33

    61

    84

    97

    114

    23

    33

    61

    84

    97

    114

    152

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    Pedon Horizon Lab Results - 2
    Horizon Top Depth Bottom Depth Sample ID pH CaCl2 pH NaF pH Ox Delta pH LL PL PI Atter. Samp. Cond. COLE Pot. Acidity Ca + Mg - Meh 2 K Ca + Mg - Sat. Paste KCl Extract. Acidity Base Sat. - Meh 2 CEC-7 CEC-8.2
    cm cm % % % cm/cm meq/100g cmol(+)/kg cmol(+)/kg mmol(+)/l cmol(+)/kg % cmol(+)/kg cmol(+)/kg

    Ap

    A

    AB

    Btg1

    Btg2

    Btg3

    Cg

    0

    23

    33

    61

    84

    97

    114

    23

    33

    61

    84

    97

    114

    152

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    Pedon Horizon Lab Results - 3
    Horizon Top Depth Bottom Depth Sample ID ECEC Phosphate P NO3-N EC EC Method EC 1:5 by volume CaCO3 Equiv. Equiv. Gypsum Na SAR Gypsum Req. Humic Color Fulvic Color Humic + Fulvic Color Al PI Pyro. Hue PyrO. Value Pyro. Chroma
    cm cm cmol(+)/kg mg/kg mg/kg dS/m dS/m % % mmol(+)/l % L-pcu/g L-pcu/g L-pcu/g %

    Ap

    A

    AB

    Btg1

    Btg2

    Btg3

    Cg

    0

    23

    33

    61

    84

    97

    114

    23

    33

    61

    84

    97

    114

    152

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

    mollic epipedon

    aquic conditions

    argillic horizon

    0—61

    0—200

    33—84

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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

    1

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    200

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    Ap—0 to 23 centimeters (0.0 to 9.1 inches); black (10YR 2/1), dark gray (10YR 4/1), dry; silty clay loam; moderate fine granular structure; friable; many (10.0) very fine roots between peds; fragments; neutral, pH 7.0; clear smooth boundary. Lab sample # IL33603
    A—23 to 33 centimeters (9.1 to 13.0 inches); black (10YR 2/1), dark gray (10YR 4/1), dry; silty clay loam; moderate medium granular structure; friable; many (10.0) very fine roots between peds; 1 percent fine distinct spherical very dark brown (7.5YR 2.5/2), moist, iron-manganese concretions with sharp boundaries throughout; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # IL33604
    AB—33 to 61 centimeters (13.0 to 24.0 inches); very dark gray (10YR 3/1), gray (10YR 5/1), dry; silty clay loam; mottles; moderate very fine subangular blocky, and moderate fine subangular blocky structure; friable; common (3.0) very fine roots between peds; 25 percent faint black (10YR 2/1), moist, organic stains on all faces of peds; 1 percent fine distinct spherical very dark brown (7.5YR 2.5/2), moist, iron-manganese concretions with sharp boundaries throughout and 10 percent fine distinct irregular grayish brown (2.5Y 5/2), moist, iron depletions with clear boundaries in matrix; fragments; slightly acid, pH 6.3; gradual smooth boundary. Lab sample # IL33606, IL33605. Horizon split for sampling: IL33605 33 to 48 cm, IL33606 48 to 61 cm.; continuous - phpvsfiid 1406440; continuous - phpvsfiid 1406440
    Btg1—61 to 84 centimeters (24.0 to 33.1 inches); grayish brown (2.5Y 5/2) silty clay loam; mottles; moderate fine prismatic parts to moderate fine subangular blocky structure; firm; common (3.0) very fine roots between peds; 25 percent distinct dark grayish brown (2.5Y 4/2), moist, clay films on all faces of peds and 25 percent prominent very dark gray (10YR 3/1), moist, organoargillans on all faces of peds and 50 percent distinct dark gray (5Y 4/1), moist, clay films on all faces of peds; 1 percent fine prominent spherical very dark brown (7.5YR 2.5/2), moist, iron-manganese concretions with sharp boundaries throughout and 10 percent fine prominent irregular yellowish brown (10YR 5/8), moist, masses of oxidized iron with clear boundaries in matrix; fragments; slightly acid, pH 6.3; gradual smooth boundary. Lab sample # IL33607, IL33608. Horizon split for sampling: IL33607 61 to 74 cm, IL33608 74 to 84 cm.; continuous - phpvsfiid 1406441; continuous - phpvsfiid 1406442; continuous - phpvsfiid 1406443; continuous - phpvsfiid 1406441; continuous - phpvsfiid 1406442; continuous - phpvsfiid 1406443
    Btg2—84 to 97 centimeters (33.1 to 38.2 inches); grayish brown (2.5Y 5/2) silty clay loam; mottles; moderate medium prismatic parts to moderate medium subangular blocky structure; firm; common (3.0) very fine roots between peds; 10 percent distinct dark gray (5Y 4/1), moist, and grayish brown (2.5Y 5/2), moist, clay films on all faces of peds; 1 percent fine prominent spherical very dark brown (7.5YR 2.5/2), moist, iron-manganese concretions with sharp boundaries throughout and 1 percent medium prominent spherical very dark brown (7.5YR 2.5/2), moist, iron-manganese concretions with sharp boundaries throughout and 25 percent fine prominent irregular yellowish brown (10YR 5/8), moist, masses of oxidized iron with diffuse boundaries in matrix; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # IL33609. continuous - phpvsfiid 1406444; continuous - phpvsfiid 1406444
    Btg3—97 to 114 centimeters (38.2 to 44.9 inches); gray (5Y 5/1) silty clay loam; mottles; weak coarse subangular blocky structure; friable; few (0.8) very fine roots between peds; 10 percent distinct dark gray (5Y 4/1), moist, clay films on vertical faces of peds; 1 percent fine prominent spherical very dark brown (7.5YR 2.5/2), moist, iron-manganese concretions with sharp boundaries throughout and 10 percent fine prominent irregular yellowish brown (10YR 5/8), moist, masses of oxidized iron with diffuse boundaries in matrix; fragments; neutral, pH 7.0; gradual smooth boundary. Lab sample # IL33610. continuous - phpvsfiid 1406445; continuous - phpvsfiid 1406445
    Cg—114 to 152 centimeters (44.9 to 59.8 inches); gray (5Y 6/1) silty clay loam; mottles; massive; friable; few (0.8) very fine roots top of horizon; 10 percent prominent very dark gray (5Y 3/1), moist, organoargillans on surfaces along pores; 10 percent fine prominent irregular yellowish brown (10YR 5/8), moist, masses of oxidized iron with diffuse boundaries in matrix; fragments; neutral, pH 7.0. Lab sample # IL33611. continuous - phpvsfiid 1406439; continuous - phpvsfiid 1406439