IDENTIFIERS

  • Current Taxon Name (Soil Name): Marshall
  • OSD
  • Series Extent
  • User Site ID: S2007IA009001
  • User Pedon ID: S07IA009001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 07N0798
  • NCSS Pedon Lab Data NASIS Record ID - 19335
  • Print Date: 1/29/2025

    • 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: 41.7338905
  • Std. Longitude: -94.9667740
  • Datum: WGS84
  • Township: 80N
  • Range: 35W
  • Section: 18
  • Country: US—United States
  • State: Iowa
  • County: IA009—Audubon
  • MLRA: 107—Iowa and Missouri Deep Loess Hills
  • Non-MLRA Soil Survey Area: IA009—Audubon County, Iowa
  • 7.5 Minute USGS Quad: 41094-F8—Audubon, Iowa

    • PEDON

  • Describers Name: Richard A. Lensch
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Typic Hapludolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Marshall
  • PSC - 25 to 100 cm.
  • Classificaton Date - 9/3/2013
  • Sampled As Information:
  • Soil Name - Marshall
  • Classificaton Date - 11/2/2007
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess
  • Geomorphic Component Hills: interfluve
  • Slope Complexity: complex
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/2/2007 (entry creation date)
  • Air Photo ID: 22
  • 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
    • 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

    3

    —

    —

    448

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; silty clay loam; 27 percent clay; weak medium subangular blocky parts to moderate medium granular structure; friable; 100 percent distinct very dark brown (10YR 2/2), moist, organic stains on all faces of peds; fragments; abrupt wavy boundary. Lab sample # 07N04865; observed in pit, small. continuous - phpvsfiid 378140; continuous - phpvsfiid 378140
    A1—20 to 38 centimeters (7.9 to 15.0 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; silty clay loam; 28 percent clay; moderate medium subangular blocky parts to moderate fine subangular blocky structure; friable; 95 percent distinct very dark brown (10YR 2/2), moist, organic stains on all faces of peds; fragments; gradual wavy boundary. Lab sample # 07N04866; observed in pit, small. continuous - phpvsfiid 378141; continuous - phpvsfiid 378141
    A2—38 to 56 centimeters (15.0 to 22.0 inches); brown (10YR 4/3) silty clay loam; 30 percent clay; moderate medium subangular blocky structure; friable; 90 percent distinct very dark brown (10YR 2/2), moist, organic stains on vertical faces of peds; fragments; clear wavy boundary. Lab sample # 07N04867; observed in pit, small. discontinuous - phpvsfiid 378142; discontinuous - phpvsfiid 378142
    BA—56 to 84 centimeters (22.0 to 33.1 inches); dark yellowish brown (10YR 4/4) silty clay loam; 32 percent clay; weak fine prismatic parts to moderate fine subangular blocky structure; friable; 80 percent distinct very dark grayish brown (10YR 3/2), moist, organic stains on vertical faces of peds; fragments; clear wavy boundary. Lab sample # 07N04868; observed in pit, small. discontinuous - phpvsfiid 378143; discontinuous - phpvsfiid 378143
    Bt1—84 to 111 centimeters (33.1 to 43.7 inches); dark yellowish brown (10YR 4/4) silty clay loam; 32 percent clay; weak fine prismatic parts to moderate fine subangular blocky structure; friable; 10 percent distinct brown (10YR 4/3), moist, clay films on vertical faces of peds; fragments; gradual smooth boundary. Lab sample # 07N04869; observed in pit, small. patchy - phpvsfiid 378144; patchy - phpvsfiid 378144
    Bt2—111 to 127 centimeters (43.7 to 50.0 inches); dark yellowish brown (10YR 4/4) silty clay loam; 32 percent clay; moderate medium prismatic parts to strong medium subangular blocky structure; friable; 10 percent distinct brown (10YR 4/3), moist, clay films on vertical faces of peds and 20 percent prominent light gray (10YR 7/2), dry, silt coats on vertical faces of peds; 1 percent fine prominent irregular strong brown (7.5YR 5/6), moist, masses of oxidized iron on faces of peds; fragments; gradual smooth boundary. Lab sample # 07N04870; observed in pit, small. patchy - phpvsfiid 378146; discontinuous - phpvsfiid 378145; patchy - phpvsfiid 378146; discontinuous - phpvsfiid 378145
    Bt3—127 to 146 centimeters (50.0 to 57.5 inches); dark yellowish brown (10YR 4/4) silty clay loam; 34 percent clay; moderate medium prismatic parts to strong medium subangular blocky structure; friable; 10 percent distinct brown (10YR 4/3), moist, clay films on vertical faces of peds and 30 percent prominent light gray (10YR 7/2), dry, silt coats on vertical faces of peds; 2 percent fine distinct irregular grayish brown (2.5Y 5/2), moist, masses of reduced iron on faces of peds and 5 percent fine prominent irregular strong brown (7.5YR 5/6), moist, masses of oxidized iron on faces of peds; fragments; gradual smooth boundary. Lab sample # 07N04871; observed in pit, small. discontinuous - phpvsfiid 378147; discontinuous - phpvsfiid 378148; discontinuous - phpvsfiid 378147; discontinuous - phpvsfiid 378148
    Bt4—146 to 166 centimeters (57.5 to 65.4 inches); dark yellowish brown (10YR 4/4) silty clay loam; 32 percent clay; moderate medium prismatic parts to moderate medium subangular blocky structure; friable; 5 percent distinct brown (10YR 4/3), moist, clay films on surfaces along pores and 25 percent prominent light gray (10YR 7/2), moist, silt coats on vertical faces of peds; 7 percent fine distinct grayish brown (2.5Y 5/2), moist, masses of reduced iron on faces of peds and 10 percent fine prominent strong brown (7.5YR 5/6), moist, masses of oxidized iron on faces of peds; fragments; gradual smooth boundary. Lab sample # 07N04872; observed in pit, small. discontinuous - phpvsfiid 378149; patchy - phpvsfiid 378150; discontinuous - phpvsfiid 378149; patchy - phpvsfiid 378150
    Bt5—166 to 182 centimeters (65.4 to 71.7 inches); yellowish brown (10YR 5/4) silty clay loam; 28 percent clay; weak coarse subangular blocky structure; friable; 3 percent distinct dark yellowish brown (10YR 4/4), moist, clay films on surfaces along pores; 1 percent fine prominent spherical black (N 2/0), moist, iron-manganese nodules throughout and 5 percent fine distinct irregular grayish brown (2.5Y 5/2), moist, masses of reduced iron on faces of peds and 10 percent fine prominent irregular strong brown (7.5YR 5/6), moist, masses of oxidized iron on faces of peds; fragments; gradual smooth boundary. Lab sample # 07N04873; observed in pit, small. patchy - phpvsfiid 378151; patchy - phpvsfiid 378151
    BC—182 to 203 centimeters (71.7 to 79.9 inches); yellowish brown (10YR 5/4) silt loam; 27 percent clay; weak coarse prismatic structure; friable; ; 2 percent fine prominent dendritic black (N 2/0), moist, iron-manganese masses throughout and 5 percent fine distinct irregular grayish brown (2.5Y 5/2), moist, masses of reduced iron on faces of peds and 20 percent fine prominent irregular strong brown (7.5YR 5/6), moist, masses of oxidized iron on faces of peds; fragments. Lab sample # 07N04874; observed in pit, small