IDENTIFIERS

  • Current Taxon Name (Soil Name): Twotop
  • OSD
  • Series Extent
  • User Site ID: S2005NE157001
  • User Pedon ID: S2005NE157001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 06N0128
  • NCSS Pedon Lab Data NASIS Record ID - 17834
  • 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: 41.8177795
  • Std. Longitude: -104.0436096
  • Datum: WGS84
  • Township: 21 North
  • Range: 58 West
  • Section: 4
  • PLSS Details: 1900 feet north and 700 feet west of the southeast corner
  • Map Unit: 5986—Orella clay, 0 to 3 percent slopes
  • State: Nebraska
  • County: NE157—Scotts Bluff
  • MLRA: 67A—Central High Plains, Northern Part
  • Non-MLRA Soil Survey Area: NE157—Scotts Bluff County, Nebraska
  • 7.5 Minute USGS Quad: 41104-G1—Robb Draw, Wyoming

    • PEDON

  • Describers Name: Dave Vyain
  • Current Taxonomic Class: Very-fine, smectitic, mesic Aridic Haplusterts
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - Twotop
  • Taxonomic Class - Very-fine, smectitic, mesic Aridic Haplusterts
  • PSC - 25 to 100 cm.
  • Classificaton Date - 10/25/2005
  • Soil Taxonomic Edition - second edition
  • Moisture Class - ustic
  • Moisture SUBClass - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: clayey alluvium derived from clayey shale
  • Landscape: basin
  • Landform: basin floor
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/25/2005 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    cambic horizon

    slickensides

    lithologic discontinuity

    16—33

    33—178

    74—178

    —-

    —-

    —-
    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

    0.5

    —

    —

    1274

    —

    180

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 16 centimeters (0.0 to 6.3 inches); light brownish gray (10YR 6/2), grayish brown (2.5Y 5/2), moist; silty clay; weak medium granular structure; hard, firm, very sticky, very plastic; 3.0 medium roots throughout; fragments; violent effervescence, by hcl, 1n; abrupt smooth boundary. Lab sample # 06N00375; moist when described; observed in trench
    Bw—16 to 33 centimeters (6.3 to 13.0 inches); light gray (2.5Y 7/2), grayish brown (2.5Y 5/2), moist; silty clay; weak coarse prismatic parts to weak medium subangular blocky structure; very hard, very firm, very sticky, very plastic; 3.0 fine roots throughout; fragments; strong effervescence, by hcl, 1n; clear smooth boundary. Lab sample # 06N00376; moist when described; observed in trench
    Bss—33 to 49 centimeters (13.0 to 19.3 inches); pale yellow (2.5Y 7/3), light brownish gray (2.5Y 6/2), moist; clay; weak coarse prismatic parts to weak medium subangular blocky structure; very hard, very firm, very sticky, very plastic; 3.0 fine roots throughout; 5 percent distinct slickensides (pedogenic) on all faces of peds; fragments; strong effervescence, by hcl, 1n; abrupt smooth boundary. Lab sample # 06N00377; moist when described; observed in trench. discontinuous - phpvsfiid 326335; discontinuous - phpvsfiid 326335
    Bkssy1—49 to 74 centimeters (19.3 to 29.1 inches); pale yellow (2.5Y 7/3), light brownish gray (2.5Y 6/2), moist; clay; weak coarse prismatic parts to weak medium subangular blocky structure; very hard, extremely firm, very sticky, very plastic; 2.0 fine roots throughout; 12 percent distinct slickensides (pedogenic) on all faces of peds; 2 percent fine distinct manganese masses on faces of peds; 10 percent fine spherical carbonate nodules in matrix and 5 percent fine irregular gypsum crystals, unspecified in matrix; fragments; violent effervescence, by hcl, 1n; gradual wavy boundary. Lab sample # 06N00378; moist when described; observed in trench. continuous - phpvsfiid 326336; continuous - phpvsfiid 326336
    2Bkssy2—74 to 94 centimeters (29.1 to 37.0 inches); pale yellow (2.5Y 7/3), light gray (2.5Y 7/2), moist; clay; moderate medium angular blocky structure; very hard, extremely firm, very sticky, very plastic; 2.0 very fine roots in cracks and 1.0 fine roots in cracks; 15 percent prominent slickensides (pedogenic) on all faces of peds; 3 percent fine irregular gypsum crystals, unspecified in matrix and 18 percent medium spherical carbonate nodules in matrix; fragments; violent effervescence, by hcl, 1n; gradual wavy boundary. Lab sample # 06N00379; moist when described; observed in trench. continuous - phpvsfiid 326334; continuous - phpvsfiid 326334
    2Bkssy3—94 to 123 centimeters (37.0 to 48.4 inches); white (2.5Y 8/1), light gray (2.5Y 7/1), moist; clay; moderate medium angular blocky structure; very hard, extremely firm, very sticky, very plastic; 2.0 very fine roots in cracks and 1.0 fine roots in cracks; 30 percent prominent slickensides (pedogenic) on all faces of peds; 5 percent fine irregular gypsum crystals, unspecified in matrix; fragments; noneffervescent, by hcl, 1n; gradual wavy boundary. Lab sample # 06N00380; moist when described; observed in trench. continuous - phpvsfiid 326338; continuous - phpvsfiid 326338
    2Bss1—123 to 150 centimeters (48.4 to 59.1 inches); light gray (5Y 7/2), light olive gray (5Y 6/2), moist; clay; moderate medium angular blocky structure; very hard, extremely firm, very sticky, very plastic; 2.0 very fine roots in cracks and 1.0 fine roots in cracks; 30 percent prominent slickensides (pedogenic) on all faces of peds; 8 percent medium prominent manganese masses in matrix and 8 percent medium prominent iron-manganese masses in matrix; fragments; noneffervescent, by hcl, 1n; gradual wavy boundary. Lab sample # 06N00381; moist when described; observed in trench. continuous - phpvsfiid 326337; continuous - phpvsfiid 326337
    2Bss2—150 to 178 centimeters (59.1 to 70.1 inches); pale yellow (5Y 8/2), light gray (5Y 7/2), moist; clay; moderate medium angular blocky structure; very hard, extremely firm, very sticky, very plastic; 2.0 very fine roots in cracks and 1.0 fine roots in cracks; 15 percent prominent slickensides (pedogenic) on all faces of peds; 10 percent medium prominent manganese masses in matrix and 10 percent medium prominent iron-manganese masses in matrix; fragments; noneffervescent, by hcl, 1n. Lab sample # 06N00382; moist when described; observed in trench. continuous - phpvsfiid 326339; continuous - phpvsfiid 326339