IDENTIFIERS

  • Current Taxon Name (Soil Name): GERDRUM
  • OSD
  • Series Extent
  • User Site ID: S1971MT069001
  • User Pedon ID: S1971MT069001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3715
  • NCSS Pedon Lab Data NASIS Record ID - 39380
  • Print Date: 11/23/2024

    • 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: 46.8840942
  • Std. Longitude: -108.3865967
  • Datum: WGS84
  • Township: 12N
  • Range: 25E
  • Section: 13
  • PLSS Details: 1050 feet north and 550 feet east of the southeast corner
  • State: Montana
  • County: MT069—Petroleum
  • MLRA: 58A—Northern Rolling High Plains, Northern Part
  • Non-MLRA Soil Survey Area: MT069—Petroleum County, Montana

    • PEDON

  • Current Taxonomic Class: Fine, smectitic Borollic Natrargids
  • Pedon Record Orgin: NASIS
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - GERDRUM
  • Classificaton Date - 11/23/2005
  • Sampled As Information:
  • Soil Name - Gerdrum
  • Classificaton Date - 6/1/1971
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium derived from shale
  • Landform: colluvial or alluvial fan
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1971 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    —

    —

    1052

    —

    81

    —

    —

    —

    —

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    A2—0 to 9 centimeters (0.0 to 3.5 inches); light brownish gray (10YR 6/2), dark gray (10YR 4/1), moist; loam; moderate medium platy structure; soft, very friable, nonsticky, nonplastic; 21.0 fine roots; 1 percent by volume 2-?-? millimeter unspecified fragments; abrupt boundary. Lab sample # 40A28622, 40A28631
    Bt21—9 to 17 centimeters (3.5 to 6.7 inches); grayish brown (10YR 5/2), gray (10YR 5/1) exterior and olive brown (2.5Y 4/3) and dark grayish brown (10YR 4/2) exterior, moist; silty clay; strong fine and medium prismatic, and moderate fine and medium angular blocky structure; extremely hard, firm, moderately sticky, very plastic; 3.0 fine roots between peds; 3.0 fine and 0.5 coarse pores; 10 percent faint light brownish gray (10YR 6/2) skeletans on tops of soil columns; fragments; clear wavy boundary. Lab sample # 40A28623
    Bt22—17 to 34 centimeters (6.7 to 13.4 inches); grayish brown (2.5Y 5/2) and brown (10YR 5/3) exterior, brown (10YR 4/3) exterior and olive brown (2.5Y 4/3), moist; silty clay; moderate medium prismatic, and strong fine and medium angular blocky structure; extremely hard, firm, moderately sticky, very plastic; 3.0 fine roots; 3.0 fine and 0.5 coarse pores; fragments; slight effervescence; diffuse wavy boundary. Lab sample # 40A28624
    Bt23—34 to 49 centimeters (13.4 to 19.3 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; silty clay; moderate coarse prismatic, and moderate medium and coarse angular blocky structure; extremely hard, firm, moderately sticky, very plastic; 3.0 fine roots; 3.0 fine and 0.5 coarse pores; pressure faces; fragments; slight effervescence; diffuse wavy boundary. Lab sample # 40A28625
    Bt24—49 to 68 centimeters (19.3 to 26.8 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; silty clay; strong fine and medium angular blocky structure; extremely hard, friable, moderately sticky, very plastic; 21.0 fine roots; 3.0 fine pores; 10 percent carbonate masses; fragments; slight effervescence; clear wavy boundary. Lab sample # 40A28626
    Csc1—68 to 90 centimeters (26.8 to 35.4 inches); dark gray (5Y 4/1) and brown (10YR 5/3), very dark gray (5Y 3/1) and brown (10YR 4/3), moist; silty clay loam, silty clay; moderate medium and coarse angular blocky structure; very hard, friable, moderately sticky, moderately plastic; 0.5 fine roots; 0.5 fine pores; 75 percent gypsum crystals, unspecified and 10 percent carbonate masses; fragments; slight effervescence; clear irregular boundary. Lab sample # 40A28627
    2Csc2—90 to 128 centimeters (35.4 to 50.4 inches); brown (10YR 5/3), very dark gray (5Y 3/1) and brown (10YR 4/3), moist; silty clay loam; weak coarse angular blocky structure; very hard, friable, moderately sticky, moderately plastic; 0.5 fine roots; 0.5 fine pores; 10 percent carbonate masses and 30 percent gypsum crystals, unspecified; fragments; strong effervescence; diffuse wavy boundary. Lab sample # 40A28628
    2C3—128 to 162 centimeters (50.4 to 63.8 inches); light olive brown (2.5Y 5/3), olive brown (2.5Y 4/3), moist; silty clay loam; massive; hard, friable, moderately sticky; 0.5 fine roots; 0.5 fine pores; 10 percent carbonate masses and 10 percent gypsum crystals, unspecified; fragments; strong effervescence; abrupt wavy boundary. Lab sample # 40A28629
    3C4—162 to 202 centimeters (63.8 to 79.5 inches);, dark grayish brown (2.5Y 4/2), moist; 0.5 fine roots; 10 percent by volume 2-?-? millimeter limestone, unspecified fragments. Lab sample # 40A28630