IDENTIFIERS

  • Current Taxon Name (Soil Name): Nunn
  • OSD
  • Series Extent
  • User Site ID: S2008CO087001
  • User Pedon ID: S2008CO087001
  • Transect:
  • User Transect ID - NlB-1
  • Transect Stop Number - 12
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 08N0092
  • NCSS Pedon Lab Data NASIS Record ID - 19534
  • Print Date: 1/31/2025

    • 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: 40.0273895
  • Std. Longitude: -103.4938354
  • Datum: WGS84
  • Township: 1N
  • Range: 55W
  • Section: 26
  • PLSS Details: 1222' south and 640' west from the northeast corner
  • Map Unit: NlB—Nunn loam, 1 to 3 percent slopes
  • State: Colorado
  • County: CO087—Morgan
  • MLRA: 67B—Central High Plains, Southern Part
  • Non-MLRA Soil Survey Area: CO087—Morgan County, Colorado
  • 7.5 Minute USGS Quad: 40103-A4—Rago, Colorado

    • PEDON

  • Describers Name: Andy Steinert and Lee Neve
  • Current Taxonomic Class: Fine, smectitic, mesic Aridic Argiustolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 1373
  • Correlated Information:
  • Soil Name - Nunn
  • PSC - 15 to 65 cm.
  • Classificaton Date - 4/23/2008
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - ustic
  • Moisture Subclass - ustic
  • Sampled As Information:
  • Soil Name - Nunn
  • Classificaton Date - 11/5/2007
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium
  • Landform: terrace
  • Geomorphic Component Terraces: tread
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/5/2007 (actual site observation date)
  • Air Photo ID: 132
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - close-grown crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
  • Current Air Temp - 10
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    secondary carbonates

    0—41

    15—84

    66—196

    —41—

    —69—

    —130—
    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

    —

    —

    1361.5

    —

    350

    330

    —

    154

    9

    —

    —

    —

    —

    —

    —

    —

    CO3038

    Fort Morgan

    Wets
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); brown (10YR 5/3) broken face, very dark grayish brown (10YR 3/2) broken face, moist; silt loam; 20 percent sand; 55 percent silt; 25 percent clay; strong thick platy, and strong coarse subangular blocky structure; hard, friable, slightly sticky, slightly plastic; Ksat of 2.82 um/s; moderately slow permeability; 3.0 very fine roots throughout; fragments; noneffervescent, by hcl, 3n; slightly alkaline, pH 7.4, phenol red; abrupt smooth boundary. Lab sample # 08N00567; observed in trench
    Bt1—15 to 41 centimeters (5.9 to 16.1 inches); brown (10YR 4/3) broken face, very dark grayish brown (10YR 3/2) broken face, moist; clay; 20 percent sand; 38 percent silt; 42 percent clay; strong fine and medium prismatic parts to strong fine angular blocky structure; very hard, firm, very sticky, very plastic; Ksat of 0.915 um/s; slow permeability; 3.0 very fine roots throughout; 1.0 very fine tubular and 2.0 fine tubular pores; 50 percent distinct clay films on all faces of peds; fragments; noneffervescent, by hcl, 3n; slightly alkaline, pH 7.6, phenol red; clear smooth boundary. Lab sample # 08N00568; observed in trench. continuous - phpvsfiid 394973; continuous - phpvsfiid 394973
    Bt2—41 to 66 centimeters (16.1 to 26.0 inches); grayish brown (10YR 5/2) broken face, brown (10YR 4/3) broken face, moist; silty clay loam; 15 percent sand; 49 percent silt; 36 percent clay; moderate medium prismatic parts to moderate fine and medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; Ksat of 0.915 um/s; slow permeability; 1.0 very fine roots throughout; 1.0 very fine tubular and 1.0 medium tubular and 2.0 fine tubular pores; 20 percent distinct clay films on all faces of peds; carbonate, finely disseminated throughout; fragments; slight effervescence, by hcl, 3n; moderately alkaline, pH 8.0, phenol red; clear smooth boundary. Lab sample # 08N00569; observed in trench. patchy - phpvsfiid 394972; patchy - phpvsfiid 394972
    Btk—66 to 84 centimeters (26.0 to 33.1 inches); brown (10YR 5/3) broken face, brown (10YR 4/3) broken face, moist; silty clay loam; 15 percent sand; 54 percent silt; 31 percent clay; moderate fine and medium subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; Ksat of 0.915 um/s; slow permeability; 1.0 very fine roots throughout; 3.0 very fine tubular and 1.0 fine tubular pores; 5 percent faint clay films on all faces of peds; 2 percent fine threadlike carbonate masses in matrix; fragments; slight effervescence, by hcl, 3n; moderately alkaline, pH 8.2, thymol-blue; clear smooth boundary. Lab sample # 08N00570; observed in trench. patchy - phpvsfiid 394971; patchy - phpvsfiid 394971
    Bk1—84 to 101 centimeters (33.1 to 39.8 inches); pale brown (10YR 6/3) broken face, brown (10YR 5/3) broken face, moist; silt loam; 20 percent sand; 57 percent silt; 23 percent clay; moderate fine and medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; Ksat of 2.82 um/s; moderately slow permeability; 1.0 very fine roots throughout; 4.0 very fine tubular and 1.0 medium tubular and 1.0 fine tubular pores; 1 percent fine irregular carbonate masses in matrix; fragments; strong effervescence, by hcl, 3n; moderately alkaline, pH 8.2, thymol-blue; gradual smooth boundary. Lab sample # 08N00571; observed in trench
    Bk2—101 to 138 centimeters (39.8 to 54.3 inches); very pale brown (10YR 7/4) broken face, brown (10YR 5/3) broken face, moist; silt loam; 20 percent sand; 55 percent silt; 25 percent clay; moderate fine and medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; Ksat of 2.82 um/s; moderately slow permeability; 3.0 very fine vesicular and 2.0 medium tubular and 1.0 fine vesicular pores; 1 percent fine threadlike carbonate masses in matrix; fragments; strong effervescence, by hcl, 3n; moderately alkaline, pH 8.2, thymol-blue; gradual smooth boundary. Lab sample # 08N00572; observed in trench
    Bk3—138 to 196 centimeters (54.3 to 77.2 inches); very pale brown (10YR 7/3) broken face, brown (10YR 5/3) broken face, moist; silt loam; 20 percent sand; 58 percent silt; 22 percent clay; weak fine and medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; Ksat of 2.82 um/s; moderately slow permeability; 2.0 very fine vesicular and 2.0 fine vesicular pores; 2 percent fine threadlike carbonate masses in matrix; fragments; strong effervescence, by hcl, 3n; moderately alkaline, pH 8.2, thymol-blue. Lab sample # 08N00573; observed in trench