IDENTIFIERS

  • Current Taxon Name (Soil Name): Tubac
  • OSD
  • Series Extent
  • User Site ID: S1964AZ003028
  • User Pedon ID: 64AZ003028
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A0189
  • NCSS Pedon Lab Data NASIS Record ID - 32718
  • 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: 32.3920593
  • Std. Longitude: -109.8284378
  • Datum: WGS84
  • Township: 12S
  • Range: 25E
  • Section: 18
  • PLSS Details: 820 feet W and 375 feet N of E 1/4 corner
  • Location Description: Cochise County, AZ. 9 miles N and 3/4 mile E of Willcox, AZ.
  • State: Arizona
  • County: AZ003—Cochise
  • MLRA: 41—Madrean Archipelago

    • PEDON

  • Describers Name: James Jay and M.L. Richards
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 28
  • Sampled As Information:
  • Soil Name - Tubac
  • PSC - 28 to 79 cm.
  • Classificaton Date - 10/1/1964
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: alluvial fan
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/1/1964 (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
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—0

    0—0

    —-

    —-
    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

    —

    —

    1362

    —

    28

    —

    —

    10

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 5 centimeters (0.0 to 2.0 inches); brown (7.5YR 4/4) interior, light brown (7.5YR 6/4) interior, dry; fine sandy loam; weak medium and coarse platy structure; slightly hard, very friable, slightly sticky, slightly plastic; 5.5 fine and medium roots; 2.5 fine tubular and 5.5 fine interstitial pores; 10 percent by volume 2-39-75 millimeter unspecified fragments; moderately acid, pH 5.8, hellige-truog; abrupt smooth boundary. Lab sample # 40A01406. 40A1406; many fine and medium roots
    A2—5 to 13 centimeters (2.0 to 5.1 inches); reddish brown (5YR 4/3) interior, reddish brown (5YR 5/3) interior, dry; gravelly sandy loam; weak fine and medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 5.5 very fine and fine roots; 2.5 fine tubular and 5.5 fine interstitial pores; 30 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.3, hellige-truog; clear smooth boundary. Lab sample # 40A01407. 40A1407; many very fine and fine roots
    A3—15 to 28 centimeters (5.9 to 11.0 inches); reddish brown (5YR 4/3) interior, reddish brown (5YR 5/3) interior, dry; gravelly clay loam; weak fine and medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 5.5 fine and medium roots; 5.5 fine tubular and 5.5 fine interstitial pores; 15 percent faint clay films on faces of peds and in pores; 30 percent by volume 2-39-75 millimeter unspecified fragments; neutral, pH 7.0, hellige-truog; abrupt wavy boundary. Lab sample # 40A01408. 40A1408; few clay films surface features on faces of peds and in pores; many fine and medium roots
    Bt—28 to 53 centimeters (11.0 to 20.9 inches); reddish brown (5YR 4/3) interior and reddish brown (5YR 4/3) crushed, reddish brown (5YR 4/3) interior and reddish brown (5YR 4/4) crushed, dry; gravelly clay; weak medium prismatic, and moderate fine and medium angular blocky structure; very hard, friable, moderately sticky, very plastic; 5.5 fine roots; 2.5 fine tubular pores; faint clay films on faces of peds and in pores; 20 percent by volume 2-39-75 millimeter unspecified fragments; slightly alkaline, pH 7.6, hellige-truog; clear wavy boundary. Lab sample # 40A01409. 40A1409; many fine roots; continuous - phpvsfiid 228263; continuous - phpvsfiid 228263
    Btk1—53 to 89 centimeters (20.9 to 35.0 inches); reddish brown (5YR 4/4) interior and light reddish brown (5YR 6/3) interior, reddish brown (5YR 5/4) interior and pink (5YR 7/3) interior, dry; clay; 30 percent black (10YR 2/1) fine mottles; structureless massive, and moderate fine and medium subangular blocky; very hard, friable, moderately sticky, moderately plastic; 2.5 fine roots; 5.5 fine tubular and 5.5 fine interstitial pores; 37 percent faint clay films on faces of peds and in pores; fragments; slight effervescence, by hcl, unspecified; moderately alkaline, pH 8.2, hellige-truog; gradual wavy boundary. Lab sample # 40A01410. 40A1410; 30% fine to coarse pebbles. Common fine faint pink mottles (weathered pebbles) lime flecks and thin patchy lime coatings on pebbles; common clay films surface features on faces of peds and in pores; common fine roots; many fine 10YR21 mottles; effervescence is continuous
    Btk2—89 to 112 centimeters (35.0 to 44.1 inches); reddish brown (5YR 4/4) interior, reddish brown (5YR 5/3) interior and reddish brown (5YR 5/4) interior, dry; gravelly sandy clay loam; structureless massive; very hard, friable, moderately sticky, moderately plastic; 2.5 fine roots; 5.5 fine interstitial and tubular pores; 15 percent faint clay films on faces of peds and in pores and 15 percent faint clay films between sand grains; 5 percent by volume 75-162-250 millimeter unspecified fragments; slight effervescence, by hcl, unspecified; slightly alkaline, pH 7.6, hellige-truog; gradual wavy boundary. Lab sample # 40A01411. 40A1411; 30% fine to coarse pebbles; few clay films surface features on faces of peds and in pores; few clay films surface features between sand grains; common fine roots; effervescence is continuous
    2C—112 to 178 centimeters (44.1 to 70.1 inches); reddish brown (5YR 4/3) interior, light reddish brown (5YR 6/3) interior, dry; very gravelly loamy sand; structureless massive; very hard, friable, nonsticky, nonplastic; 5.5 fine interstitial pores; fragments; slightly alkaline, pH 7.6, hellige-truog. Lab sample # 40A01412. 40A1412