IDENTIFIERS

  • Current Taxon Name (Soil Name): Toston
  • OSD
  • Series Extent
  • User Site ID: S1987MT031021
  • User Pedon ID: 87MT031021
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 88P0346
  • NCSS Pedon Lab Data NASIS Record ID - 60464
  • Print Date: 11/21/2024

    • LOCATION

  • Location Description: 300 ft S of road. SE 1/4, SE 1/4, NW 1/4, Sec. T.3N., R.3E.
  • State: Montana
  • County: MT031—Gallatin

    • PEDON

  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 21
  • Sampled As Information:
  • Soil Name - Toston
  • Taxonomic Class - Fine-loamy, mixed Aquic Natrargids
  • Classificaton Date - 9/1/1987
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: terrace—stream or lake
  • Slope Shape Down: convex
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1987 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • 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

    —

    —

    1218

    —

    30

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    1A—0 to 8 centimeters (0.0 to 3.1 inches); grayish brown (10YR 5/2) interior, very dark grayish brown (10YR 3/2) interior, moist; loam; weak medium platy structure; slightly hard, friable, slightly sticky, slightly plastic; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; abrupt smooth boundary. Lab sample # 88P01758
    1Btn—8 to 20 centimeters (3.1 to 7.9 inches); dark gray (10YR 4/1) interior, very dark gray (10YR 3/1) crushed, moist; clay; moderate coarse prismatic, and strong fine angular blocky structure; very hard, very firm, very sticky, very plastic; 37 percent distinct clay films on faces of peds and in pores; fragments; slight effervescence, by hcl, 1n; strongly alkaline, pH 8.6, hellige-truog; clear smooth boundary. Lab sample # 88P01759. Man lime veins and masses possibly gypsum.; common clay films surface features on faces of peds and in pores
    1Bkn1—20 to 51 centimeters (7.9 to 20.1 inches); light brownish gray (10YR 6/2) interior, dark grayish brown (10YR 4/2) interior, moist; silty clay loam; 1 percent dark yellowish brown (10YR 3/4) faint mottles; moderate coarse prismatic, and strong medium angular blocky structure; very hard, very firm, very sticky, very plastic; fragments; violent effervescence, by hcl, 1n; strongly alkaline, pH 8.8, hellige-truog; clear smooth boundary. Many lime veins and masses possibly gypsum.; few faint 10YR34 mottles
    1Bkn2—51 to 61 centimeters (20.1 to 24.0 inches); light brownish gray (10YR 6/2) interior, dark grayish brown (10YR 4/2) interior, moist; silty clay loam; 1 percent dark yellowish brown (10YR 3/4) fine and medium mottles; moderate coarse prismatic, and strong medium angular blocky structure; very hard, very firm, very sticky, very plastic; fragments; violent effervescence, by hcl, 1n; strongly alkaline, pH 9.0, hellige-truog; clear smooth boundary. Many lime veins and masses possibly gypsum.; few fine and medium 10YR34 mottles
    1Bkn3—61 to 81 centimeters (24.0 to 31.9 inches); gray (10YR 5/1) interior, dark yellowish brown (10YR 3/4) interior, moist; silty clay loam; 1 percent dark yellowish brown (10YR 4/4) fine and 1 percent very dark brown (10YR 2/2) mottles; moderate coarse prismatic, and strong medium angular blocky structure; very hard, very firm, very sticky, very plastic; fragments; violent effervescence, by hcl, 1n; strongly alkaline, pH 9.0, hellige-truog; clear smooth boundary. Man lime veins and masses possibly gypsum.; few fine 10YR44 mottles; few 10YR22 mottles
    1C1—81 to 102 centimeters (31.9 to 40.2 inches); light brownish gray (2.5Y 6/2) interior, dark grayish brown (2.5Y 4/2) interior, moist; silty clay loam; 1 percent dark yellowish brown (10YR 4/4) fine and 1 percent very dark brown (10YR 2/2) mottles; massive; very hard, very firm, very sticky, very plastic; fragments; violent effervescence, by hcl, 1n; very strongly alkaline, pH 9.4, hellige-truog; clear smooth boundary. Many lime veins and masses possibly gypsum.; few fine 10YR44 mottles; few 10YR22 mottles
    1C2—102 to 119 centimeters (40.2 to 46.9 inches); light brownish gray (2.5Y 6/2) interior, dark grayish brown (2.5Y 4/2) interior, moist; clay, sandy clay loam; 1 percent dark yellowish brown (10YR 4/4) fine and 1 percent very dark brown (10YR 2/2) mottles; massive; very hard, very firm, moderately sticky, moderately plastic; fragments; violent effervescence, by hcl, 1n; very strongly alkaline, pH 9.2, hellige-truog; abrupt smooth boundary. Many lime veins and masses possibly gypsum.; few fine 10YR44 mottles; few 10YR22 mottles
    1C3—119 to 145 centimeters (46.9 to 57.1 inches); weathered bedrock; fragments. Stopped by cobbles.