IDENTIFIERS

  • Current Taxon Name (Soil Name): Atlas
  • OSD
  • Series Extent
  • User Site ID: 1966IL001002
  • User Pedon ID: 1966IL001002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 66IL001002
  • NCSS Pedon Lab Data NASIS Record ID - 20605
  • Print Date: 2/17/2025

    • 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: 40.0970794
  • Std. Longitude: -91.1395811
  • Datum: WGS84
  • Township: 1N
  • Range: 6W
  • Section: 6
  • PLSS Details: 1200 feet north and 1900 feet east of the southwest corner
  • Location Description: 120 feet south and 580 feet east of the northwest corner of the southeast 40 of the southwest 160
  • State: Illinois
  • County: IL001—Adams
  • Non-MLRA Soil Survey Area: IL001—Adams County, Illinois
  • 7.5 Minute USGS Quad: 40091-A2—Coatsburg, Illinois

    • PEDON

  • Describers Name: LB, JF
  • Current Taxonomic Class: Fine, smectitic, mesic Aeric Chromic Vertic Epiaqualfs
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: PedonPC
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Atlas
  • PSC - 36 to 86 cm.
  • Classificaton Date - 7/10/2009
  • Moisture Class - aquic
  • Sampled As Information:
  • Soil Name - Atlas
  • Classificaton Date - 7/1/1966
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/1/1966 (actual site observation date)
  • Air Photo ID:
  • 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
  • Yield Study ID -
    • 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

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    —

    202

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    Ap—0 to 10 centimeters (0.0 to 3.9 inches); very dark grayish brown (10YR 3/2) silt loam; moderate fine granular structure; friable; 1 percent fine iron-manganese concretions; fragments; moderately acid, pH 5.8; abrupt smooth boundary. Lab sample # IL20247
    A21—10 to 18 centimeters (3.9 to 7.1 inches); 10 percent very dark grayish brown (10YR 3/2) and brown (10YR 5/3) silt loam; weak medium platy, and moderate medium granular structure; friable; 1 percent fine iron-manganese concretions; fragments; strongly acid, pH 5.3; clear smooth boundary. Lab sample # IL20248
    A22—18 to 25 centimeters (7.1 to 9.8 inches); variegated grayish brown (10YR 5/2) and brown (10YR 5/3) silt loam; moderate coarse granular structure; friable; 1 percent fine iron-manganese concretions; 1 percent very dark grayish brown (10YR 3/2), moist, worm casts; fragments; strongly acid, pH 5.3; clear smooth boundary. Lab sample # IL20249
    IIB1—25 to 36 centimeters (9.8 to 14.2 inches); yellowish brown (10YR 5/4) silty clay loam; 1 percent 2.5Y 3/6 (2.5Y 3/6) fine prominent mottles; moderate fine subangular blocky structure; firm; light gray (10YR 7/1), dry, silt coats on all faces of peds; 1 percent fine iron-manganese concretions; 1 percent by volume rounded strongly coherent cemented mixed fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL20250
    IIB21t—36 to 48 centimeters (14.2 to 18.9 inches); brown (10YR 4/3) silty clay; 1 percent dark grayish brown (10YR 4/2) fine faint and 1 percent 2.5Y 3/6 (2.5Y 3/6) fine prominent mottles; moderate fine angular blocky structure; very firm; grayish brown (2.5Y 5/2), moist, clay films on all faces of peds; 1 percent fine iron-manganese concretions; 1 percent by volume rounded strongly coherent cemented mixed fragments; extremely acid, pH 4.0; clear smooth boundary. Lab sample # IL20251
    IIB22t—48 to 74 centimeters (18.9 to 29.1 inches); brown (10YR 4/3) silty clay loam; 10 percent grayish brown (2.5Y 5/2) fine distinct and 10 percent 2.5Y 3/6 (2.5Y 3/6) fine prominent mottles; weak medium prismatic, and moderate fine angular blocky structure; very firm; dark grayish brown (2.5Y 4/2), moist, clay films on all faces of peds; 1 percent fine iron-manganese concretions; 1 percent by volume rounded strongly coherent cemented mixed fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL20252
    IIB23t—74 to 102 centimeters (29.1 to 40.2 inches); grayish brown (2.5Y 5/2) clay; 10 percent light olive brown (2.5Y 5/4) medium distinct mottles; weak fine angular blocky structure; very firm; gray (10YR 5/1), moist, clay films on all faces of peds; 10 percent medium iron-manganese concretions; 1 percent by volume rounded strongly coherent cemented mixed fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL20253
    IIB24t—102 to 119 centimeters (40.2 to 46.9 inches); yellowish brown (10YR 5/4) clay; 10 percent gray (5Y 5/1) medium distinct mottles; weak coarse angular blocky structure; very firm; gray (10YR 5/1), moist, clay films on all faces of peds; 10 percent medium iron-manganese concretions; 1 percent by volume rounded strongly coherent cemented mixed fragments; strongly acid, pH 5.3; clear smooth boundary. Lab sample # IL20254
    IIB31—119 to 155 centimeters (46.9 to 61.0 inches); yellowish brown (10YR 5/6) clay loam; 25 percent greenish gray (5GY 6/1) coarse prominent mottles; weak coarse prismatic, and weak medium angular blocky structure; very firm; clay films on all faces of peds; 1 percent iron-manganese concretions; fragments; moderately acid, pH 5.8; gradual smooth boundary. Lab sample # IL20255
    IIB32—155 to 193 centimeters (61.0 to 76.0 inches); yellowish brown (10YR 5/6) clay loam; 25 percent greenish gray (5GY 6/1) coarse prominent mottles; weak fine angular blocky structure; firm; 50 percent clay films on all faces of peds; 10 percent medium iron-manganese concretions on faces of peds; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # IL20256
    IIB33—193 to 208 centimeters (76.0 to 81.9 inches); yellowish brown (10YR 5/6) clay loam; 25 percent greenish gray (5GY 6/1) medium prominent mottles; weak fine angular blocky structure; firm; clay films on all faces of peds; 25 percent medium iron-manganese concretions on faces of peds; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # IL20257
    IIC1—208 to 249 centimeters (81.9 to 98.0 inches); yellowish brown (10YR 5/4) clay loam; 10 percent greenish gray (5GY 6/1) medium distinct mottles; weak medium angular blocky structure; firm; 10 percent clay films on all faces of peds; 1 percent iron-manganese concretions on faces of peds; fragments; neutral, pH 7.0; clear smooth boundary. Lab sample # IL20258
    IIC2—249 to 295 centimeters (98.0 to 116.1 inches); light olive brown (2.5Y 5/6) clay loam; 10 percent gray (10YR 6/1) coarse distinct mottles; weak coarse angular blocky structure; firm; 10 percent gray (10YR 6/1), moist, clay films on all faces of peds; 10 percent iron-manganese concretions; fragments; slight effervescence; slightly alkaline, pH 7.6; abrupt smooth boundary. Lab sample # IL20259
    IIIBbg—295 to 333 centimeters (116.1 to 131.1 inches); gray (5Y 6/1) stratified stratified silty clay; 10 percent light olive brown (2.5Y 5/4) medium distinct mottles; weak medium angular blocky structure; very firm; 25 percent clay films on all faces of peds; 1 percent iron-manganese concretions on faces of peds; 1 percent by volume rounded strongly coherent cemented mixed fragments; slightly alkaline, pH 7.6; diffuse smooth boundary. Lab sample # IL20260