IDENTIFIERS

  • Current Taxon Name (Soil Name): Darmstadt
  • OSD
  • Series Extent
  • User Site ID: S1993IL027006
  • User Pedon ID: S1993IL027006
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 94P0266
  • NCSS Pedon Lab Data NASIS Record ID - 66444
  • Print Date: 2/16/2025

    • 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: 38.4916649
  • Std. Longitude: -89.5602798
  • Datum: WGS84
  • Township: 1N
  • Range: 4W
  • Section: 32
  • State: Illinois
  • County: IL027—Clinton
  • MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain
  • Non-MLRA Soil Survey Area: IL027—Clinton County, Illinois
  • 7.5 Minute USGS Quad: 38089-D5—Okawville, Illinois

    • PEDON

  • Describers Name: MM, CL, RK
  • Current Taxonomic Class: Fine, smectitic, mesic Albic Natraqualfs
  • Current Taxon Kind: taxadjunct
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 6
  • Correlated Information:
  • Soil Name - Darmstadt
  • PSC - 62 to 112 cm.
  • Classificaton Date - 6/15/2007
  • Moisture Class - aquic
  • Sampled As Information:
  • Soil Name - Hurst
  • Taxonomic Class - Fine, montmorillonitic, mesic Natrudalf
  • Taxon Kind - series
  • Classificaton Date - 9/15/1993
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/15/1993 (actual site observation date)
  • Air Photo ID: 72
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

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    127

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    Ap—0 to 19 centimeters (0.0 to 7.5 inches); dark grayish brown (10YR 4/2) silt loam; moderate fine granular parts to weak thin platy structure; friable; 4.0 fine and medium roots throughout; 1 percent fine spherical iron-manganese concretions; fragments; moderately acid, pH 5.6, hellige-truog; clear smooth boundary. Lab sample # 94P01636
    E\Bt1—19 to 27 centimeters (7.5 to 10.6 inches); dark yellowish brown (10YR 4/4) silty clay loam; weak thin platy parts to weak fine and medium subangular blocky structure; firm; 21.0 very fine to medium roots throughout; 15 percent distinct brown (10YR 4/3) clay films on faces of peds and in pores and 21 percent prominent light gray (10YR 7/2) silt coats on vertical faces of peds; 1 percent fine spherical iron-manganese concretions; fragments; moderately acid, pH 5.8, hellige-truog; clear smooth boundary. Lab sample # 94P01637
    E\Bt2—27 to 48 centimeters (10.6 to 18.9 inches); dark yellowish brown (10YR 4/4) silty clay loam; 10 percent strong brown (7.5YR 5/6) fine prominent mottles; moderate medium prismatic parts to moderate fine and medium angular blocky structure; firm; 21.0 fine and medium roots between peds; 40 percent distinct dark yellowish brown (10YR 4/6) clay films on faces of peds and in pores and 55 percent prominent light gray (10YR 7/2) silt coats on faces of peds; 5 percent fine irregular noncoherent cemented black (N 2/0) iron-manganese masses throughout; fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 94P01638
    Bt\E—48 to 62 centimeters (18.9 to 24.4 inches); dark yellowish brown (10YR 4/6) silty clay loam; 15 percent strong brown (7.5YR 5/6) fine prominent mottles; weak fine and medium subangular blocky, and weak fine angular blocky structure; firm; 21.0 fine and medium roots between peds; 15 percent prominent light gray (10YR 7/2) silt coats on faces of peds and 45 percent distinct dark yellowish brown (10YR 3/6) clay films on faces of peds and in pores; 5 percent fine irregular noncoherent cemented black (N 2/0) iron-manganese masses throughout; fragments; moderately alkaline, pH 8.2, hellige-truog; abrupt smooth boundary. Lab sample # 94P01639
    Bt1—62 to 90 centimeters (24.4 to 35.4 inches); brown (10YR 4/3) silty clay loam; 10 percent strong brown (7.5YR 5/6) fine and medium prominent mottles; weak medium subangular blocky structure; firm; 0.5 very fine and fine roots between peds; 5 percent prominent light gray (10YR 7/2) silt coats on faces of peds and 40 percent distinct dark yellowish brown (10YR 3/6) clay films on faces of peds and in pores; 5 percent fine irregular noncoherent cemented black (N 2/0) iron-manganese masses throughout; fragments; moderately alkaline, pH 8.4, hellige-truog; clear smooth boundary. Lab sample # 94P01640
    Bt2—90 to 132 centimeters (35.4 to 52.0 inches); yellowish brown (10YR 5/4) silty clay loam; 10 percent strong brown (7.5YR 5/6) fine and medium prominent mottles; weak medium subangular blocky structure; extremely firm*; 0.5 very fine roots between peds; 21 percent prominent very dark brown (10YR 2/2) clay films in root channels and/or pores and 25 percent distinct dark yellowish brown (10YR 3/4) clay films on faces of peds and in pores and 25 percent prominent light gray (10YR 7/2) silt coats on faces of peds; 8 percent fine irregular noncoherent cemented black (N 2/0) iron-manganese masses throughout; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; abrupt smooth boundary. Lab sample # 94P01641
    2Btg1—132 to 156 centimeters (52.0 to 61.4 inches); weak red (2.5YR 4/2) silty clay; 10 percent yellowish brown (10YR 5/4) fine and medium prominent mottles; weak medium prismatic parts to weak fine subangular blocky structure; extremely firm*; 0.5 very fine roots between peds; 2 percent prominent very dark brown (10YR 2/2) clay films in root channels and/or pores and 35 percent prominent black (N 2/0) manganese or iron-manganese stains on faces of peds and 45 percent distinct weak red (2.5YR 4/2) slickensides (pedogenic) on vertical faces of peds; 15 percent fine irregular noncoherent cemented black (N 2/0) iron-manganese masses throughout; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; abrupt smooth boundary. Lab sample # 94P01642
    2Btg2—156 to 178 centimeters (61.4 to 70.1 inches); weak red (2.5YR 5/2) silty clay loam; 15 percent yellowish brown (10YR 5/4) fine prominent and 21 percent yellowish brown (10YR 5/8) fine and medium prominent mottles; weak medium prismatic parts to weak fine subangular blocky structure; extremely firm*; 1 percent prominent very dark grayish brown (10YR 3/2) clay films in root channels and/or pores and 30 percent distinct weak red (2.5YR 5/2) slickensides (pedogenic) on vertical faces of peds; 20 percent fine irregular noncoherent cemented black (N 2/0) iron-manganese masses throughout; 20 percent coarse irregular carbonate nodules at top of horizon; fragments; violent effervescence, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; clear smooth boundary. Lab sample # 94P01643
    2Btg3—178 to 201 centimeters (70.1 to 79.1 inches); weak red (2.5YR 5/2) silty clay loam; 15 percent yellowish brown (10YR 5/8) fine prominent mottles; weak fine prismatic structure; extremely firm*; 1 percent prominent very dark grayish brown (10YR 3/2) clay films in root channels and/or pores and 10 percent prominent black (N 2/0) manganese or iron-manganese stains on faces of peds and 25 percent distinct brown (7.5YR 5/2) slickensides (pedogenic) on vertical faces of peds; 15 percent fine irregular noncoherent cemented black (N 2/0) iron-manganese masses throughout; fragments; violent effervescence, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; abrupt smooth boundary. Lab sample # 94P01644
    2Bt1—201 to 233 centimeters (79.1 to 91.7 inches); light yellowish brown (10YR 6/4) silty clay loam; 15 percent strong brown (7.5YR 5/6) fine prominent mottles; weak fine subangular blocky structure; firm; 1 percent prominent very dark grayish brown (10YR 3/2) clay films in root channels and/or pores and 5 percent prominent light gray (10YR 7/2) silt coats on vertical faces of peds; 5 percent fine irregular noncoherent cemented black (N 2/0) iron-manganese masses throughout; 30 percent medium and coarse irregular moderately coherent cemented carbonate nodules throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; abrupt smooth boundary. Lab sample # 94P01645
    2Bt2—233 to 252 centimeters (91.7 to 99.2 inches); light yellowish brown (10YR 6/4) loam; 21 percent grayish brown (10YR 5/2) fine distinct and 21 percent yellowish brown (10YR 5/6) fine distinct mottles; weak fine subangular blocky structure; friable; 1 percent prominent very dark grayish brown (10YR 3/2) clay films in root channels and/or pores; 5 percent fine irregular noncoherent cemented black (N 2/0) iron-manganese masses throughout; fragments; violent effervescence, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog; clear smooth boundary. Lab sample # 94P01646
    2Bt3—252 to 278 centimeters (99.2 to 109.4 inches); yellowish brown (10YR 5/8) loam; 21 percent reddish brown (2.5YR 5/4) fine and medium prominent mottles; massive; friable; 1 percent prominent very dark grayish brown (10YR 3/2) clay films in root channels and/or pores; 5 percent fine irregular noncoherent cemented black (N 2/0) iron-manganese masses throughout; fragments; slight effervescence, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog; clear smooth boundary. Lab sample # 94P01647
    2Bt4—278 to 309 centimeters (109.4 to 121.7 inches); brownish yellow (10YR 6/8) fine sandy loam; 21 percent gray (10YR 6/1) fine and medium prominent mottles; massive; friable; 1 percent prominent very dark grayish brown (10YR 3/2) clay films in root channels and/or pores; 5 percent fine irregular noncoherent cemented black (N 2/0) iron-manganese masses throughout; fragments; slight effervescence, by hcl, 1n; slightly alkaline, pH 7.5, hellige-truog. Lab sample # 94P01648