IDENTIFIERS

  • Current Taxon Name (Soil Name): Virden
  • OSD
  • Series Extent
  • User Site ID: S1979IL137042
  • User Pedon ID: S1979IL137042
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - IL SCL
  • Lab Pedon # - 79IL137042
  • NCSS Pedon Lab Data NASIS Record ID - 21148
  • Print Date: 11/23/2024

    • 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: 39.5319917
  • Std. Longitude: -90.1139806
  • Datum: WGS84
  • Township: 13N
  • Range: 9W
  • Section: 32
  • PLSS Details: 1,150 feet S & 45 feet W of NE corner
  • Map Unit: 50A—Virden silty clay loam, 0 to 2 percent slopes
  • Country: US—United States
  • State: Illinois
  • County: IL137—Morgan
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Regional Office: NC—North Central
  • Non-MLRA Soil Survey Area: IL137—Morgan County, Illinois
  • 7.5 Minute USGS Quad: 39090-E1—Franklin, Illinois

    • PEDON

  • Describers Name: W. Scott Martin
  • Current Taxonomic Class: Fine, smectitic, mesic Vertic Argiaquolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 42
  • Correlated Information:
  • Soil Name - Virden
  • PSC - 46 to 96 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - aquic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Virden
  • PSC - 46 to 96 cm.
  • Classificaton Date - 10/1/1979
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Fine-textured Peoria Loess
  • Landscape: till plain
  • Landform: ground moraine
  • Hill Slope Profile: summit
  • Runoff: negligible
  • Drainage Class: poorly
  • Ponding: occasional ponding for long periods
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/1/1979 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • 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

    Btg4

    Cg

    0

    20

    46

    58

    71

    97

    122

    137

    20

    46

    58

    71

    97

    122

    137

    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

    Btg4

    Cg

    0

    20

    46

    58

    71

    97

    122

    137

    20

    46

    58

    71

    97

    122

    137

    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

    Btg4

    Cg

    0

    20

    46

    58

    71

    97

    122

    137

    20

    46

    58

    71

    97

    122

    137

    152

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

    mollic epipedon

    argillic horizon

    0—58

    46—137

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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

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    188

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    Ap—0 to 20 centimeters (0.0 to 7.9 inches); black (10YR 2/1), dark gray (10YR 4/1), dry; silty clay loam; weak fine granular structure; friable; many (10.0) very fine roots between peds and ; fragments; neutral, pH 7.0; abrupt smooth boundary. Lab sample # IL26601
    A—20 to 46 centimeters (7.9 to 18.1 inches); black (10YR 2/1), dark gray (10YR 4/1), dry; silty clay loam; moderate fine subangular blocky structure; firm; many (10.0) very fine roots between peds and ; 10 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; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # IL26602. continuous - phpvsfiid 1406327; continuous - phpvsfiid 1406327
    AB—46 to 58 centimeters (18.1 to 22.8 inches); black (10YR 2/1) and very dark gray (10YR 3/1), gray (10YR 5/1), dry; silty clay loam; mottles; moderate medium subangular blocky structure; firm; common (3.0) very fine roots between peds and ; 25 percent faint black (10YR 2/1), moist, organic stains on all faces of peds; 1 percent fine prominent irregular yellowish brown (10YR 5/6), moist, masses of oxidized iron with clear boundaries in matrix and 10 percent fine distinct spherical very dark brown (7.5YR 2.5/2), moist, iron-manganese concretions with sharp boundaries throughout; fragments; neutral, pH 7.0; clear smooth boundary. Lab sample # IL26603. continuous - phpvsfiid 1406328; continuous - phpvsfiid 1406328
    Btg1—58 to 71 centimeters (22.8 to 28.0 inches); dark grayish brown (10YR 4/2) silty clay loam; and mottles; moderate fine prismatic parts to moderate fine subangular blocky structure; firm; common (3.0) very fine roots between peds and ; 25 percent distinct very dark gray (10YR 3/1), moist, organoargillans on all faces of peds; 1 percent medium prominent irregular yellowish brown (10YR 5/6), moist, masses of oxidized iron with clear boundaries in matrix and 10 percent fine distinct irregular light olive brown (2.5Y 5/4), moist, masses of oxidized iron with clear boundaries in matrix and 10 percent fine distinct spherical very dark brown (7.5YR 2.5/2), moist, iron-manganese concretions with sharp boundaries throughout; fragments; neutral, pH 7.0; clear smooth boundary. Lab sample # IL26604. continuous - phpvsfiid 1406329; continuous - phpvsfiid 1406329
    Btg2—71 to 97 centimeters (28.0 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; 25 percent prominent dark gray (10YR 4/1), moist, clay films on all faces of peds; 10 percent medium prominent irregular yellowish brown (10YR 5/6), moist, masses of oxidized iron with clear boundaries in matrix and 10 percent fine prominent spherical very dark brown (7.5YR 2.5/2), moist, iron-manganese concretions with sharp boundaries throughout; fragments; neutral, pH 7.0; gradual smooth boundary. Lab sample # IL26605. continuous - phpvsfiid 1406330; continuous - phpvsfiid 1406330
    Btg3—97 to 122 centimeters (38.2 to 48.0 inches); grayish brown (2.5Y 5/2) silty clay loam; and mottles; moderate coarse subangular blocky structure; firm; few (0.8) very fine roots between peds; 25 percent prominent dark gray (10YR 4/1), moist, clay films on all faces of peds; 10 percent prominent cylindrical light gray (5Y 7/1), dry, clay depletions with sharp boundaries on faces of peds and 10 percent medium prominent irregular yellowish brown (10YR 5/8), moist, masses of oxidized iron with diffuse boundaries in matrix and 10 percent fine prominent irregular dark brown (7.5YR 3/3), moist, iron-manganese masses with clear boundaries throughout; fragments; neutral, pH 7.0; clear smooth boundary. Lab sample # IL26606. continuous - phpvsfiid 1406331; continuous - phpvsfiid 1406331
    Btg4—122 to 137 centimeters (48.0 to 53.9 inches); light brownish gray (2.5Y 6/2) silty clay loam; mottles; weak coarse subangular blocky structure; friable; few (0.8) very fine roots between peds; 10 percent distinct dark grayish brown (10YR 4/2), moist, clay films on vertical faces of peds; 10 percent medium prominent irregular yellowish brown (10YR 5/8), moist, masses of oxidized iron with diffuse boundaries in matrix and 10 percent fine prominent irregular dark brown (7.5YR 3/3), moist, iron-manganese masses with clear boundaries throughout; fragments; slightly acid, pH 6.3; clear smooth boundary. patchy - phpvsfiid 1406332; patchy - phpvsfiid 1406332
    Cg—137 to 152 centimeters (53.9 to 59.8 inches); light olive gray (5Y 6/2) silt loam; mottles; massive; friable; few (0.8) very fine roots top of horizon; 10 percent prominent very dark gray (10YR 3/1), moist, organoargillans on surfaces along pores; 25 percent medium prominent irregular dark brown (7.5YR 3/3), moist, iron-manganese masses with clear boundaries throughout and 25 percent coarse prominent irregular yellowish brown (10YR 5/8), moist, masses of oxidized iron with diffuse boundaries in matrix; fragments; slightly acid, pH 6.3. the grayish brown (10YR 5/2) clay films coat cleavage planes; continuous - phpvsfiid 1406333; continuous - phpvsfiid 1406333