IDENTIFIERS

  • Current Taxon Name (Soil Name): Kossuth
  • OSD
  • Series Extent
  • User Site ID: S1964IA079004
  • User Pedon ID: S1964IA079004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A1491
  • User Project ID: 2024-1
  • Project Name: MLRA 103 - Marna-Kossuth and Kamrar-Bode update
  • Print Date: 2/3/2025

    • 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: 42.3000000
  • Std. Longitude: -93.7752800
  • Datum: WGS84
  • Township: 87N
  • Range: 25W
  • Section: 33
  • PLSS Details: 297 feet E and 1397 feet N of the SW corner
  • State: Iowa
  • County: IA079—Hamilton
  • MLRA: 103—Central Iowa and Minnesota Till Prairies
  • Non-MLRA Soil Survey Area: IA079—Hamilton County, Iowa

    • PEDON

  • Describers Name: R.I. Dideriksen, C.S. Fisher, and M.P. Koppen
  • Current Taxonomic Class: Fine, montmorillonitic, mesic Typic Haplaquolls
  • Current Taxon Kind: series
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 4
  • Correlated Information:
  • Soil Name - Kossuth
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/16/2007
  • Sampled As Information:
  • Soil Name - Marna
  • Classificaton Date - 9/1/1964
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: till plain
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/6/2022 (entry creation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Biol. Crust Type Dominant - cyanobacteria
  • Phys Crust Subtype - vesicular crust
  • Crust Dev Class - weak
  • 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

    1

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap1—0 to 15 centimeters (0.0 to 5.9 inches); black (N 2/0) and black (10YR 2/1) rubbed, black (10YR 2/1) and very dark gray (10YR 3/1), dry; silty clay loam; hard, friable; 1 reversible crust related cracks per meter; fragments; slightly acid, pH 6.3, unspecified; abrupt smooth boundary. Lab sample # 40A11629. cloddy with medium angular blocky structure in the lower part and some granular structure in the upper part; few evident sand grains.
    Ap2—15 to 23 centimeters (5.9 to 9.1 inches); black (N 2/0) and black (10YR 2/1) rubbed, black (10YR 2/1) and very dark gray (10YR 3/1), dry; silty clay loam; moderate medium angular blocky structure; hard, friable; fragments; slightly acid, pH 6.3, unspecified; clear smooth boundary. Lab sample # 40A11630. few fine subangular blocks and some weak fine granular structure; few clean sand grains are evident.
    A12—23 to 40 centimeters (9.1 to 15.7 inches); black (N 2/0) and black (10YR 2/1) rubbed, black (10YR 2/1) and very dark gray (10YR 3/1), dry; silty clay loam; moderate very fine subangular blocky structure; firm; 0.5 pores; fragments; slightly acid, pH 6.4, unspecified; clear smooth boundary. Lab sample # 40A11631. low in sand (less than 20%) but grains are evident; root channels present.
    B1—40 to 53 centimeters (15.7 to 20.9 inches); black (N 2/0) and very dark gray (10YR 3/1) and black (10YR 2/1) rubbed and very dark gray (10YR 3/1) rubbed, very dark gray (10YR 3/1) and dark gray (10YR 4/1), dry; silty clay; strong very fine subangular blocky structure; firm; fine pores; faint clay films and 37 percent dark brown (10YR 3/3) oxide coats; fragments; slightly acid, pH 6.4, unspecified; clear smooth boundary. Lab sample # 40A11632. some vertical cleavage; all peds have a sheen; few medium root channels; low sand content (less than 20%).; discontinuous - phpvsfiid 175146; discontinuous - phpvsfiid 175146
    B21t—53 to 73 centimeters (20.9 to 28.7 inches); dark gray (5Y 4/1) and 20 percent olive gray (5Y 5/2) and very dark gray (10YR 3/1) and 30 percent dark gray (5Y 4/1) and very dark gray (10YR 3/1) rubbed and very dark gray (5Y 3/1) rubbed silty clay; strong medium prismatic parts to moderate medium subangular blocky structure; very firm; faint clay films and 15 percent black (10YR 2/1) coats on faces of peds and 37 percent dark brown (10YR 3/3) oxide coats and 37 percent black (10YR 2/1) oxide coats; fragments; slightly acid, pH 6.5, unspecified; clear smooth boundary. Lab sample # 40A11633. continuous - phpvsfiid 175149; continuous - phpvsfiid 175149; the olive gray color increases with depth; few clay flows on the prisms; few 30 degree cleavage faces; this horizon was previously named B21g.
    B22g—73 to 85 centimeters (28.7 to 33.5 inches); olive gray (5Y 5/2) and dark gray (5Y 4/1) and 30 percent olive gray (5Y 5/2) silty clay; strong medium prismatic parts to moderate medium subangular blocky structure; very firm; faint clay films and 15 percent very dark gray (10YR 3/1) coats and 37 percent yellowish brown (10YR 5/4) oxide coats and 37 percent strong brown (7.5YR 5/6) oxide coats; fragments; neutral, pH 6.6, unspecified; clear smooth boundary. Lab sample # 40A11634. distinct clay flows and fills along vertical faces; some 30 degree cleavage faces across the prisms; some increase in sand from above but probably less than 20%.; continuous - phpvsfiid 175152; continuous - phpvsfiid 175152
    B23g—85 to 98 centimeters (33.5 to 38.6 inches); olive gray (5Y 5/2) and dark gray (5Y 4/1) and 30 percent olive gray (5Y 5/2) clay; weak medium prismatic parts to medium subangular blocky structure; firm; faint clay films on vertical faces of peds and 37 percent black (10YR 2/1) oxide coats and 37 percent strong brown (7.5YR 5/6) oxide coats; fragments; neutral, pH 6.7, unspecified; clear smooth boundary. Lab sample # 40A11635. discontinuous - phpvsfiid 191638; discontinuous - phpvsfiid 191638; more pebbles than the horizon above.
    2B31g—98 to 110 centimeters (38.6 to 43.3 inches); olive gray (5Y 5/2) and 40 percent dark gray (5Y 4/1) clay loam; weak coarse prismatic parts to weak medium subangular blocky structure; firm; 37 percent yellowish brown (10YR 5/6) oxide coats and 37 percent black (10YR 2/1) oxide coats; fragments; neutral, pH 7.2, unspecified; gradual wavy boundary. Lab sample # 40A11636. clay films less distinct than above; distinct increase in pebbles and sand and contact with lime rock in the lower part.
    2B32g—110 to 125 centimeters (43.3 to 49.2 inches); yellowish brown (10YR 5/6) and olive gray (5Y 5/2) clay loam; olive gray (5Y 5/2) and 25 percent yellowish brown (10YR 5/6) fine mottles; weak coarse prismatic parts to weak medium subangular blocky structure; friable; 10.0 fine tubular pores; fragments; strong effervescence; moderately alkaline, pH 8.2, unspecified; gradual wavy boundary. Lab sample # 40A11637. some dark gray (5Y 4/1) fills in pores and along some vertical faces; some pebbles; some 1/4 inch hard lime nodules
    2B33—125 to 138 centimeters (49.2 to 54.3 inches); yellowish brown (10YR 5/6) and olive gray (5Y 5/2) clay loam; weak coarse prismatic parts to weak medium subangular blocky structure; friable; 10.0 fine tubular pores; 15 percent dark gray (5Y 4/1) coats on vertical faces of peds and 15 percent black (10YR 2/1) oxide coats and 15 percent strong brown (7.5YR 5/6) oxide coats; fragments; strong effervescence; moderately alkaline, pH 8.2, unspecified; diffuse smooth boundary. Lab sample # 40A11638. structure weaker; maximum zone of lime segregation with lime oriented in pores and on vertical cleavage faces; fewer lime nodules than in the horizon above; common pebbles; old krotovina from horizon below extends into this horizon.
    2B34—138 to 168 centimeters (54.3 to 66.1 inches); yellowish brown (10YR 5/6) and olive gray (5Y 5/2) loam; weak coarse prismatic parts to weak medium subangular blocky structure; friable; 3 percent black (10YR 2/1) oxide coats; fragments; strong effervescence; moderately alkaline, pH 8.2, unspecified; diffuse wavy boundary. Lab sample # 40A11639. some lime in vertical cleavage faces but less segregated lime than above; an old krotovina in this horizon.
    2C—168 to 203 centimeters (66.1 to 79.9 inches); yellowish brown (10YR 5/6) and olive gray (5Y 5/2) loam; massive; friable; fragments; strong effervescence; moderately alkaline, pH 8.2, unspecified. Lab sample # 40A11640. color similar to above except less olive gray; the lime is not segregated.