IDENTIFIERS

  • Current Taxon Name (Soil Name): Coben
  • OSD
  • Series Extent
  • User Site ID: S1989MT0391262
  • User Pedon ID: 89MT0391262
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 92P0314
  • NCSS Pedon Lab Data NASIS Record ID - 64553
  • Print Date: 11/21/2024

    • 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: 46.5744438
  • Std. Longitude: -113.1019440
  • Datum: WGS84
  • Township: 10N
  • Range: 12W
  • Section: 33
  • PLSS Details: 1300 feet E and 1300 feet N of SW corner
  • State: Montana
  • County: MT039—Granite

    • PEDON

  • Describers Name: B.D. Dougherty and Arnie Irwin
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 126
  • Sampled As Information:
  • Soil Name - Coben
  • Taxonomic Class - Fine, mixed Abruptic Argiborolls
  • Classificaton Date - 9/1/1989
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Anthropogenic Feature: leveled land
  • Drainage Class: well
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1989 (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

    4

    —

    —

    1366

    —

    270

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    A—0 to 8 centimeters (0.0 to 3.1 inches); very dark grayish brown (10YR 3/2) rubbed, grayish brown (10YR 5/2) crushed, dry; loam; moderate medium granular structure; soft, very friable, slightly sticky, slightly plastic; 5.5 very fine and fine roots; 5.5 very fine and fine tubular pores; fragments; very slight effervescence; slightly acid, pH 6.4, hellige-truog; abrupt smooth boundary. Lab sample # 92P01916. many very fine and fine roots
    Bt1—8 to 23 centimeters (3.1 to 9.1 inches); dark brown (10YR 3/3) rubbed, dark grayish brown (10YR 4/2) crushed, dry; silty clay; strong coarse prismatic structure; very hard, very firm, very sticky, very plastic; 2.5 very fine and fine roots; 5.5 very fine and fine tubular pores; 55 percent clay films on faces of peds and in pores; fragments; very slight effervescence; neutral, pH 7.0, hellige-truog; clear wavy boundary. Lab sample # 92P01917. many clay films surface features on faces of peds and in pores; common very fine and fine roots
    Bt2—23 to 36 centimeters (9.1 to 14.2 inches); brown (10YR 4/3) rubbed, brown (10YR 5/3) crushed, dry; silty clay; moderate medium subangular blocky structure; very hard, very firm, very sticky, very plastic; 2.5 very fine and fine roots; 5.5 very fine and fine tubular pores; 55 percent clay films on faces of peds and in pores; fragments; very slight effervescence; slightly alkaline, pH 7.6, hellige-truog; clear wavy boundary. Lab sample # 92P01918. many clay films surface features on faces of peds and in pores; common very fine and fine roots
    Bk1—36 to 53 centimeters (14.2 to 20.9 inches); brown (7.5YR 4/4) rubbed, brown (7.5YR 5/4) crushed, dry; clay loam; weak coarse prismatic, and moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.5 very fine and fine roots; 2.5 very fine and fine tubular pores; 37 percent clay films on faces of peds; fragments; violent effervescence; strongly alkaline, pH 8.6, hellige-truog; clear wavy boundary. Lab sample # 92P01919. 7% CaCO3; common clay films surface features on faces of peds; few very fine and fine roots
    Bk2—53 to 76 centimeters (20.9 to 29.9 inches); brown (7.5YR 4/4) rubbed, brown (7.5YR 5/4) crushed, dry; clay loam; weak coarse prismatic, and moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.5 very fine and fine roots; 2.5 very fine and fine tubular pores; 37 percent clay films on faces of peds and in pores; fragments; strong effervescence; moderately alkaline, pH 8.2, hellige-truog; clear wavy boundary. Lab sample # 92P01920. 5% CaCO3; common clay films surface features on faces of peds and in pores; few very fine and fine roots
    Bk3—76 to 107 centimeters (29.9 to 42.1 inches); brown (7.5YR 4/4) rubbed, brown (7.5YR 5/4) crushed, dry; clay loam; weak coarse prismatic, and moderate medium subangular blocky structure; hard, very firm, moderately sticky, moderately plastic; 0.5 very fine and fine roots; 2.5 very fine and fine tubular pores; 37 percent clay films on faces of peds and in pores; fragments; strong effervescence; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 92P01921. 5% CaCO3; common clay films surface features on faces of peds and in pores; few very fine and fine roots
    C—107 to 152 centimeters (42.1 to 59.8 inches); light yellowish brown (10YR 6/4) rubbed, very pale brown (10YR 7/4) crushed, dry; clay loam; massive; slightly hard; 5.5 very fine tubular and 2.5 fine tubular pores; fragments; very slight effervescence; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 92P01922. 3% CaCO3