IDENTIFIERS

  • Current Taxon Name (Soil Name): Ursa
  • OSD
  • Series Extent
  • User Site ID: 1978IL157043
  • User Pedon ID: 1978IL157043
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 78IL157043
  • NCSS Pedon Lab Data NASIS Record ID - 21067
  • Print Date: 11/11/2024
  • 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: 38.2180222
  • Std. Longitude: -89.9844881
  • Datum: WGS84
  • Township: 4S
  • Range: 8W
  • Section: 4
  • PLSS Details: 1320 feet S & 1160 feet W of NE corner
  • State: Illinois
  • County: IL157—Randolph
  • MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain
  • Non-MLRA Soil Survey Area: IL157—Randolph County, Illinois
  • 7.5 Minute USGS Quad: 38089-B8—Red Bud, Illinois
  • PEDON

  • Describers Name: CCM, RWS
  • Current Taxonomic Class: Fine, smectitic, mesic Chromic Vertic Hapludalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: map unit inclusion
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 43
  • Correlated Information:
  • Soil Name - Ursa
  • PSC - 25 to 75 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Westmore
  • Classificaton Date - 10/1/1978
  • Dynamic Soil Properties:
  • Erosion Class - 3
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


  • SITE

  • Parent Material: Roxana loess over Illinoian glacial till containing strongly developed Sangamon age paleosol over siltstone and claystone residuum over calcareous interbedded siltsone and claystone bedrock
  • Landscape: till plain, upland
  • Landform: drainageway
  • Slope Shape Across: convex
  • Runoff: high
  • Drainage Class: moderately well
  • Bedrock: strongly coherent siltstone, calcareous at 150cm
  • Surface Fragments:
  • Benchmark Soil?: no
  • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/1/1978 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - hayland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
  • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

    strongly coherent

    150 - 165

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

    ochric epipedon

    argillic horizon

    slickensides

    lithic contact

    0—25

    25—124

    91—124

    150—165

    —-

    —-

    —-

    —-

    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

    11

    128

    Ap—0 to 25 centimeters (0.0 to 9.8 inches); brown (10YR 4/3) silt loam; moderate medium granular, and structureless massive; firm; 3.0 roots between peds; fragments; slightly acid, pH 6.5, lamotte-morgan; abrupt smooth boundary. Lab sample # IL26137; observed in pit, small
    B21t—25 to 41 centimeters (9.8 to 16.1 inches); yellowish brown (10YR 5/4) silty clay loam; 10 percent reddish yellow (5YR 6/8) medium prominent and 25 percent strong brown (7.5YR 5/6) medium distinct mottles; moderate fine subangular blocky structure; firm; 3.0 roots between peds; distinct brown (7.5YR 5/3), moist, clay films on all faces of peds; fragments; strongly acid, pH 5.1, lamotte-morgan; abrupt smooth boundary. Lab sample # IL26138; observed in pit, small. patchy - phpvsfiid 480302; patchy - phpvsfiid 480302
    B22t—41 to 51 centimeters (16.1 to 20.1 inches); brown (10YR 5/3) and grayish brown (10YR 5/2) silty clay loam; 10 percent reddish yellow (7.5YR 6/6) medium distinct and 25 percent reddish yellow (5YR 6/8) medium prominent mottles; moderate fine subangular blocky structure; firm; distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds and faint brown (10YR 5/3), moist, clay films on all faces of peds; fragments; very strongly acid, pH 4.7, lamotte-morgan; abrupt smooth boundary. Lab sample # IL26139; observed in pit, small. continuous - phpvsfiid 480303; patchy - phpvsfiid 480304; continuous - phpvsfiid 480303; patchy - phpvsfiid 480304
    IIB23t—51 to 69 centimeters (20.1 to 27.2 inches); pale brown (10YR 6/3) and grayish brown (10YR 5/2) silty clay loam; 10 percent brownish yellow (10YR 6/8) medium prominent and 10 percent reddish yellow (5YR 6/8) medium prominent mottles; moderate medium prismatic parts to moderate medium angular blocky structure; firm; distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 5 percent by volume angular strongly coherent cemented mixed fragments; strongly acid, pH 5.3, lamotte-morgan; clear smooth boundary. Lab sample # IL26140; observed in pit, small. patchy - phpvsfiid 480300; patchy - phpvsfiid 480300
    IIB24t—69 to 91 centimeters (27.2 to 35.8 inches); strong brown (7.5YR 5/6) silty clay; 25 percent brownish yellow (10YR 6/6) medium distinct mottles; moderate coarse prismatic parts to weak medium angular blocky structure; very firm; distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds; 10 percent prominent iron-manganese masses in matrix; 10 percent by volume angular strongly coherent cemented mixed fragments; moderately acid, pH 6.0, lamotte-morgan; clear smooth boundary. Lab sample # IL26141; observed in pit, small. continuous - phpvsfiid 480301; continuous - phpvsfiid 480301
    IIIB25t—91 to 124 centimeters (35.8 to 48.8 inches); yellowish brown (10YR 5/6) gravelly clay; 10 percent brownish yellow (10YR 6/8) medium distinct mottles; moderate very coarse prismatic structure; very firm; distinct dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds and slickensides (pedogenic) on vertical faces of peds; 18 percent by volume angular strongly coherent cemented mixed fragments; neutral, pH 7.0, lamotte-morgan; gradual smooth boundary. Lab sample # IL26142; observed in pit, small. continuous - phpvsfiid 480298; continuous - phpvsfiid 480298
    IIIC—124 to 150 centimeters (48.8 to 59.1 inches); light gray (2.5Y 7/1) and olive yellow (2.5Y 6/6) very channery clay; structureless massive; very firm; 80 percent by volume angular strongly coherent cemented mixed fragments; slightly alkaline, pH 7.5, lamotte-morgan; clear irregular boundary.; observed in pit, small
    R—150 to 165 centimeters (59.1 to 65.0 inches); bedrock; angular strongly coherent cemented siltstone, unspecified fragments and angular strongly coherent cemented claystone fragments; slight effervescence, by hcl, unspecified; slightly alkaline, pH 7.6, lamotte-morgan.; observed in pit, small