IDENTIFIERS

  • Current Taxon Name (Soil Name): Tonka
  • OSD
  • Series Extent
  • User Site ID: 56ND081003
  • User Pedon ID: 56ND081003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A0124
  • NCSS Pedon Lab Data NASIS Record ID - 32666
  • 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: 46.0805556
  • Std. Longitude: -97.6272222
  • Datum: WGS84
  • Location Description: 1465 feet east and 125 feet south of northwest corner of Section 18, T.130N., R.55W.
  • State: North Dakota
  • County: ND081—Sargent
  • MLRA: 55B—Central Black Glaciated Plains

    • PEDON

  • Describers Name: Wesley M. Larsen
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Tonka
  • Classificaton Date - 7/11/1956
  • Moisture Class - aquic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: till plain
  • Landform: depression
  • Slope Shape Down: concave
  • Drainage Class: poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/11/1956 (actual site observation date)
  • Surface Cover Properties:
  • 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—25

    25—33

    33—64

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    —-

    —-
    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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    A1—0 to 8 centimeters (0.0 to 3.1 inches); black (10YR 2/1), very dark gray (10YR 3/1), dry; weak fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 roots; fragments. Lab sample # 40A00895
    A2—8 to 25 centimeters (3.1 to 9.8 inches); black (10YR 2/1), dark gray (10YR 4/1), dry; strong fine and medium platy structure; slightly hard, very friable, slightly sticky, slightly plastic; 3.0 roots; fragments; clear wavy boundary. Lab sample # 40A00896
    E—25 to 33 centimeters (9.8 to 13.0 inches); very dark gray (10YR 3/1), gray (10YR 5/1), dry; 21 percent gray (10YR 6/1) fine distinct and 21 percent brownish yellow (10YR 6/8) fine distinct and 21 percent very dark grayish brown (10YR 3/2) fine distinct mottles; moderate medium platy structure; very hard, friable, moderately sticky, moderately plastic; 0.5 roots; fragments; clear wavy boundary. Lab sample # 40A00897
    Bt1—33 to 41 centimeters (13.0 to 16.1 inches);, dark gray (10YR 4/1) and very dark gray (10YR 3/1), dry; 3 percent brown (10YR 4/3) mottles; moderate very fine angular blocky structure; very hard, firm, very sticky, very plastic; 0.5 roots; gray (10YR 5/1), moist, coats; fragments; clear wavy boundary. Lab sample # 40A00898
    Bt2—41 to 64 centimeters (16.1 to 25.2 inches); black (10YR 2/1), very dark gray (10YR 3/1), dry; weak coarse prismatic parts to strong medium angular blocky structure; extremely hard, very firm, very sticky, very plastic; 0.5 roots; fragments; clear smooth boundary. Lab sample # 40A00899
    Bg—64 to 79 centimeters (25.2 to 31.1 inches);, dark gray (5Y 4/1) and dark olive gray (5Y 3/2), dry; 3 percent olive (5Y 5/3) mottles; weak coarse prismatic parts to moderate fine angular blocky structure; extremely hard, very firm, very sticky, very plastic; 0.5 roots; fragments; clear wavy boundary. Lab sample # 40A00900
    Bkg1—79 to 91 centimeters (31.1 to 35.8 inches); olive gray (5Y 4/2) and dark yellowish brown (10YR 4/4), gray (5Y 6/1) and gray (5Y 5/1), dry; 3 percent light olive brown (2.5Y 5/4) fine distinct and 3 percent dark yellowish brown (10YR 4/4) fine distinct mottles; weak coarse prismatic parts to moderate fine angular blocky structure; extremely hard, very firm, very sticky, very plastic; 0.1 roots; 3 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence, by hcl, unspecified; clear smooth boundary. Lab sample # 40A00901
    Bkg2—91 to 122 centimeters (35.8 to 48.0 inches); dark gray (5Y 4/1), gray (5Y 6/1), dry; brown (7.5YR 4/4) medium and coarse prominent and 21 percent white (5Y 8/1) fine distinct mottles; weak medium angular blocky structure; very hard, firm, moderately sticky, moderately plastic; 0.1 roots; carbonate coats on rock fragments; 25 percent fine noncoherent cemented lime masses; 3 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence, by hcl, unspecified; clear smooth boundary. Lab sample # 40A00902
    Cg—122 to 152 centimeters (48.0 to 59.8 inches); gray (5Y 5/1) and olive brown (2.5Y 4/4), gray (5Y 6/1) and light olive brown (2.5Y 5/4), dry; 3 percent white (10YR 8/1) fine and 21 percent dark yellowish brown (10YR 4/4) coarse mottles; hard, firm, slightly sticky, slightly plastic; 0.1 roots; 1 percent fine noncoherent cemented lime masses; 3 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence, by hcl, unspecified. Lab sample # 40A00903