IDENTIFIERS

  • Current Taxon Name (Soil Name): Gunsight
  • OSD
  • Series Extent
  • User Site ID: S1971AZ019009
  • User Pedon ID: S1971AZ019009
  • Vegetation Plot ID: S1971AZ019009
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 71C0009
  • NCSS Pedon Lab Data NASIS Record ID - 13229
  • 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: 31.8883324
  • Std. Longitude: -112.7477798
  • Datum: WGS84
  • Township: 18S
  • Range: 5W
  • Section: 2
  • PLSS Details: 0.5 mile south and 0.25 mile east of the northeast corner
  • Location Description: Organ Pipe Cactus National Monument.
  • State: Arizona
  • County: AZ019—Pima
  • Non-MLRA Soil Survey Area: AZ648—Cabeza Prieta Area, Arizona, Parts of Pima and Yuma Counties

    • PEDON

  • Describers Name: Y. H. Havens, E. Chamberlin
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 9
  • Sampled As Information:
  • Soil Name - Gunsight
  • Taxonomic Class - Loamy-skeletal, mixed Typic Calciorthids
  • PSC - 25 to 100 cm.
  • Classificaton Date - 4/8/1971
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Drainage Class: well
  • Surface Fragments: 55.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/8/1971 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    BOBA2

    BOBA2

    Bouteloua barbata

    Bouteloua barbata

    sixweeks grama

    sixweeks grama

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    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

    2

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    454

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    229

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    20.6

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    A1—0 to 5 centimeters (0.0 to 2.0 inches); light brown (7.5YR 6/4), brown (7.5YR 4/4), moist; very gravelly loam; weak medium platy structure; slightly hard, very friable, nonsticky, slightly plastic; 0.5 very fine roots; 21.0 very fine and fine interstitial pores; 50 percent by volume 2-39-75 millimeter unspecified fragments; strong effervescence; moderately alkaline, pH 8.2, thymol-blue; abrupt smooth boundary. Lab sample # 71C00054; dry when described;
    B2—5 to 25 centimeters (2.0 to 9.8 inches); pink (7.5YR 7/4), brown (7.5YR 5/4), moist; very gravelly loam; massive; slightly hard, friable, nonsticky, slightly plastic; 0.5 fine and medium roots; 1 percent fine pinkish white (7.5YR 8/2); fragments; violent effervescence; moderately alkaline, pH 8.3, thymol-blue; clear wavy boundary. Lab sample # 71C00055; dry when described;
    C1CA—25 to 46 centimeters (9.8 to 18.1 inches); white (10YR 8/1) and pinkish gray (7.5YR 7/2), pinkish gray (7.5YR 7/2) and brown (7.5YR 5/4), moist; very gravelly loam; massive; hard when dry, friable, slightly sticky, slightly plastic; 0.5 fine and medium roots; 3.0 very fine interstitial pores; carbonate coats on rock fragments; 21 percent pinkish white (7.5YR 8/2) lime masses; 70 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence; strongly alkaline, pH 8.5, thymol-blue; gradual wavy boundary. Lab sample # 71C00056; dry when described;
    C2CA—46 to 81 centimeters (18.1 to 31.9 inches); pinkish white (7.5YR 8/2) and pinkish gray (7.5YR 7/2) and pink (7.5YR 7/4), pinkish gray (7.5YR 7/2) and brown (7.5YR 5/4), moist; very gravelly sandy loam; massive; hard when dry, friable, slightly sticky, moderately plastic; 0.5 very fine roots; 3.0 very fine interstitial and 0.5 fine tubular pores; carbonate coats on rock fragments; 21 percent weakly coherent cemented pinkish white (7.5YR 8/2) lime masses; 75 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.3, thymol-blue; gradual wavy boundary. Lab sample # 71C00057; dry when described;
    C3CA—81 to 140 centimeters (31.9 to 55.1 inches); pinkish white (7.5YR 8/2) and pinkish gray (7.5YR 7/2), pink (7.5YR 7/4), moist; very gravelly loam; massive; hard when dry, friable, slightly sticky, moderately plastic; 3.0 very fine interstitial and 0.5 fine tubular pores; carbonate coats on rock fragments; 21 percent weakly coherent cemented pinkish white (7.5YR 8/2) lime masses; 40 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.3, thymol-blue. Lab sample # 71C00058; dry when described;