IDENTIFIERS

  • Current Taxon Name (Soil Name): Tonka
  • OSD
  • Series Extent
  • User Site ID: S1950SD115005
  • User Pedon ID: S1950SD115005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2463
  • NCSS Pedon Lab Data NASIS Record ID - 37159
  • Print Date: 5/20/2024

    • 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: 45.1863990
  • Std. Longitude: -98.4733460
  • Datum: WGS84
  • Township: 120N
  • Range: 64W
  • Section: 25
  • PLSS Details: 150 feet W, 150 feet S of NE corner
  • Map Unit: Wn—Winship-Tonka silt loams, 0 to 1 percent slopesG868A—Winship-Tonka silt loams, 0 to 1 percent slopes
  • Country: US—United States
  • State: South Dakota
  • County: SD115—Spink
  • MLRA: 55B—Central Black Glaciated Plains
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-RED—Redfield, South Dakota
  • Non-MLRA Soil Survey Area: SD115—Spink County, South Dakota

    • PEDON

  • Describers Name: Fred Westin
  • Current Taxonomic Class: Fine, smectitic, nonacid, frigid Argiaquic Argialbolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Copy of S1950SD115005-KSSL Pedon (Rec ID 105748)
  • Pedon #: 5
  • Correlated Information:
  • Soil Name - Tonka
  • PSC - 81 to 131 cm.
  • Classificaton Date - 11/8/2021
  • Classifier - Winter, Steve
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - aquic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Tetonka
  • Classificaton Date - 8/22/1950
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: yes
  • Certification Status: certified
  • QC Status: level 1
  • QA Status: not reviewed


    • SITE

  • Parent Material: alluvium
  • Landscape: lake plain
  • Landform: depression
  • Slope Shape Across: concave
  • Slope Shape Down: concave
  • Drainage Class: poorly
  • Flooding: none flooding
  • Ponding: frequent ponding for long periods
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/22/1950 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    albic horizon

    argillic horizon

    0—104

    48—81

    81—163

    —104—

    —33—

    —82—
    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

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 48 centimeters (0.0 to 18.9 inches); very dark gray (10YR 3/1), dark gray (10YR 4/1), dry; silt loam; moderate very fine granular parts to moderate fine platy structure; slightly hard, very friable; fragments; noneffervescent; abrupt boundary. Lab sample # 40A19289
    E1—48 to 66 centimeters (18.9 to 26.0 inches); dark gray (10YR 4/1), gray (10YR 6/1), dry; silt loam; weak medium prismatic parts to strong fine platy structure; slightly hard, very friable; fragments; noneffervescent. Lab sample # 40A19290
    E2—66 to 81 centimeters (26.0 to 31.9 inches); gray (10YR 5/1), light gray (10YR 7/1), dry; silt loam; moderate medium prismatic parts to moderate fine platy structure; hard, very friable; fragments; noneffervescent; abrupt boundary. Lab sample # 40A19291
    Bt1—81 to 104 centimeters (31.9 to 40.9 inches); very dark gray (10YR 3/1), dark gray (10YR 4/1), dry; silty clay; moderate fine and medium prismatic parts to fine subangular blocky structure; extremely hard, firm; fragments; noneffervescent; clear boundary. Lab sample # 40A19292
    Bt2—104 to 163 centimeters (40.9 to 64.2 inches); olive brown (2.5Y 4/3), light yellowish brown (2.5Y 6/3), dry; silty clay; moderate coarse prismatic parts to moderate fine and medium subangular blocky structure; extremely hard, very firm; grayish brown (10YR 5/2), dry, coats and very dark grayish brown (10YR 3/2), moist, coats; fragments; noneffervescent. Lab sample # 40A19293. Coats are of soil from above.
    C—163 to 229 centimeters (64.2 to 90.2 inches);, light olive brown (2.5Y 5/4) and pale yellow (2.5Y 8/4) and olive yellow (2.5Y 6/6), dry; silt loam; weak coarse prismatic parts to moderate medium subangular blocky structure; hard, firm; fragments; noneffervescent. Lab sample # 40A19294