IDENTIFIERS

  • Current Taxon Name (Soil Name): Marvan
  • OSD
  • Series Extent
  • User Site ID: S1990MT071005
  • User Pedon ID: 90MT071005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 90P0702
  • Print Date: 11/11/2024

    • 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: 47.8769455
  • Std. Longitude: -107.6172256
  • Datum: WGS84
  • State: Montana
  • County: MT071—Phillips

    • PEDON

  • Describers Name: C. Gordon and R. Bandy
  • Current Taxonomic Class: Fine, smectitic, frigid Sodic Haplusterts
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 5
  • Correlated Information:
  • Soil Name - Marvan
  • Classificaton Date - 2/14/2024
  • Classifier - willa nagel
  • Soil Taxonomic Edition - thirteenth edition
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Marvan
  • Taxonomic Class - Fine, montmorillonitic, frigid Udorthentic Chromus
  • Taxon Kind - series
  • Classificaton Date - 5/1/1990
  • Moisture Class - ustic
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/1/1990 (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

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    A—0 to 15 centimeters (0.0 to 5.9 inches); light brownish gray (2.5Y 6/2), dark grayish brown (2.5Y 4/2), moist; clay; moderate very fine granular structure; very hard, friable, very sticky, very plastic; fragments; slightly alkaline, pH 7.8, hellige-truog; clear smooth boundary.
    Bw1—15 to 41 centimeters (5.9 to 16.1 inches); pale red (2.5YR 6/2), dark grayish brown (2.5Y 4/2), moist; clay; moderate medium subangular blocky structure; very hard, very firm, very sticky, very plastic; fragments; slight effervescence; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # 90P04120
    Bw2—41 to 51 centimeters (16.1 to 20.1 inches); light brownish gray (2.5Y 6/2), dark grayish brown (2.5Y 4/2), moist; clay; moderate medium subangular blocky structure; very hard, very firm, very sticky, very plastic; fragments; slight effervescence; moderately alkaline, pH 8.4, hellige-truog; gradual wavy boundary.
    By1—51 to 76 centimeters (20.1 to 29.9 inches); light brownish gray (2.5Y 6/2), dark grayish brown (2.5Y 4/2), moist; clay; moderate fine and medium subangular blocky structure; very hard, very firm, very sticky, very plastic; fragments; slight effervescence; moderately alkaline, pH 8.4, hellige-truog; gradual wavy boundary. Lab sample # 90P04121
    By2—76 to 152 centimeters (29.9 to 59.8 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; clay; massive; very hard, very firm, very sticky, very plastic; fragments; slight effervescence; moderately alkaline, pH 8.2, hellige-truog.