IDENTIFIERS

  • Current Taxon Name (Soil Name): Marias
  • OSD
  • Series Extent
  • User Site ID: S1984MT015492
  • User Pedon ID: 84MT015492
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0838
  • NCSS Pedon Lab Data NASIS Record ID - 57104
  • Print Date: 11/24/2024

    • 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: 48.0813904
  • Std. Longitude: -111.3252792
  • Datum: WGS84
  • Township: 27N
  • Range: 3E
  • Section: 22
  • PLSS Details: 1000 feet W and 2600 feet N of the SE corner
  • State: Montana
  • County: MT015—Chouteau

    • PEDON

  • Current Taxonomic Class: Fine, smectitic, frigid Udorthentic Chromusterts
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 492
  • Correlated Information:
  • Soil Name - Marias
  • Classificaton Date - 7/11/2007
  • Moisture Class - udic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Marias
  • Taxonomic Class - Fine, montmorillonitic, frigid Udorthentic Chromus
  • Taxon Kind - series
  • Classificaton Date - 11/1/1984
  • Moisture Class - ustic
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: terrace—stream or lake
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/1/1984 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • 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

    —

    —

    1005

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    1Ap1—0 to 13 centimeters (0.0 to 5.1 inches); dark grayish brown (2.5Y 4/2) interior, grayish brown (2.5Y 5/2) interior, dry; silty clay; strong very fine and fine granular structure; soft, firm, very sticky, very plastic; 0.5 very fine roots; fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; clear smooth boundary. Lab sample # 85P04511. few very fine roots
    1Ap2—13 to 23 centimeters (5.1 to 9.1 inches); dark grayish brown (2.5Y 4/2) interior, grayish brown (2.5Y 5/2) interior, dry; silty clay; moderate fine and medium subangular blocky structure; very hard, very friable, very sticky, very plastic; 0.5 very fine roots; 0.5 very fine tubular pores; fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; clear wavy boundary. Lab sample # 85P04512. few very fine roots
    1Bw1—23 to 56 centimeters (9.1 to 22.0 inches); dark grayish brown (2.5Y 4/2) interior, grayish brown (2.5Y 5/2) interior, dry; silty clay; strong medium and coarse angular blocky structure; very hard, very friable, very sticky, very plastic; 2.5 very fine roots; 0.5 very fine tubular pores; fragments; slight effervescence, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; clear wavy boundary. Lab sample # 85P04513. common very fine roots
    1Bw2—56 to 84 centimeters (22.0 to 33.1 inches); dark grayish brown (2.5Y 4/2) interior, grayish brown (2.5Y 5/2) interior, dry; silty clay; strong fine and medium angular blocky structure; very hard, very firm, very sticky, very plastic; 2.5 very fine roots; 2.5 very fine tubular pores; fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; clear wavy boundary. Lab sample # 85P04514. common very fine roots
    1Bky—84 to 152 centimeters (33.1 to 59.8 inches); dark grayish brown (2.5Y 4/2) interior, 15 percent very dark grayish brown (2.5Y 3/2) interior and 85 percent light brownish gray (2.5Y 6/2) interior, dry; silty clay; moderate fine and medium angular blocky structure; very hard, very firm, very sticky, very plastic; 0.5 very fine tubular pores; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 85P04515. Trace of roots.