IDENTIFIERS

  • Current Taxon Name (Soil Name): Diablo
  • OSD
  • Series Extent
  • User Site ID: 93CA079002
  • User Pedon ID: 93CA079002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 93P0666
  • NCSS Pedon Lab Data NASIS Record ID - 66009
  • Print Date: 11/21/2024

    • 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: 35.3295556
  • Std. Longitude: -120.6970000
  • Datum: WGS84
  • Location Description: On camp San Luis National Guard; about 1000 ft. N-NW of NW corner of California mens colony main compound; about 250 ft. NW of Chorro Creek Crossing.
  • State: California
  • County: CA079—San Luis Obispo
  • MLRA: 15—Central California Coast Range

    • PEDON

  • Describers Name: Whited, Southard, and Oster
  • Pedon Type: map unit inclusion
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Diablo
  • Classificaton Date - 5/11/1993
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: foothills
  • Landform: hillside
  • Hill Slope Profile: backslope
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: well
  • Bedrock: with <10
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/11/1993 (actual site observation date)
  • Air Photo ID: 9
  • Surface Cover Properties:
  • 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

    mollic epipedon

    0—84

    —-
    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

    10

    —

    —

    —

    —

    150

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 3 centimeters (0.0 to 1.2 inches); very dark brown (10YR 2/2) and very dark brown (10YR 2/2) crushed, light brownish gray (10YR 6/2), dry; weak fine angular blocky parts to moderate fine and medium granular structure; friable, very sticky, very plastic; 10.0 very fine roots and 0.5 fine roots; 0.5 very fine and fine tubular pores; 1 percent by volume angular 2-39-75 millimeter serpentinite fragments; slight effervescence; abrupt smooth boundary. Lab sample # 93P4640. angular chert; graywacky.
    Bw1—3 to 13 centimeters (1.2 to 5.1 inches); very dark gray (10YR 3/1) and black (10YR 2/1) crushed; strong coarse prismatic structure; firm, very sticky, very plastic; 3.0 very fine roots and 0.5 fine roots; 0.5 very fine to medium tubular pores; 15 percent faint pressure faces; worm casts throughout; 1 percent by volume angular 2-39-75 millimeter serpentinite fragments; slight effervescence; clear wavy boundary. Lab sample # 93P4641. angular chert; greywacky.
    Bw2—13 to 42 centimeters (5.1 to 16.5 inches); very dark gray (5Y 3/1) and very dark gray (5Y 3/1) crushed; moderate medium prismatic parts to moderate fine and medium angular blocky structure; very hard, firm, very sticky, very plastic; 10.0 very fine roots and 0.5 fine roots; 0.5 very fine tubular and 3.0 very fine tubular pores; 15 percent nonintersecting slickensides and 37 percent faint pressure faces; 1 percent by volume angular 2-39-75 millimeter serpentinite fragments; slight effervescence; clear wavy boundary. Lab sample # 93P4642. angular chert; greywacky.
    Bss1—42 to 72 centimeters (16.5 to 28.3 inches); very dark gray (5Y 3/1) and very dark gray (5Y 3/1) crushed; moderate medium and coarse prismatic parts to strong medium angular blocky structure; very hard, firm, very sticky, very plastic; 3.0 very fine roots; 3.0 very fine tubular and 0.5 fine tubular pores; 37 percent slickensides (pedogenic); 1 percent by volume angular 2-39-75 millimeter serpentinite fragments; noneffervescent; clear wavy boundary. Lab sample # 93P4643. angular chert; greywacky; wedge-shaped aggregates.
    Bss2—72 to 84 centimeters (28.3 to 33.1 inches); very dark gray (5Y 3/1) and very dark gray (5Y 3/1) crushed; moderate medium and coarse prismatic parts to strong medium angular blocky structure; very hard, firm, very sticky, very plastic; 0.5 very fine roots; 3.0 very fine and fine tubular pores; 37 percent pressure faces and 55 percent distinct slickensides (pedogenic); 1 percent by volume angular 2-39-75 millimeter serpentinite fragments; slight effervescence; abrupt wavy boundary. Lab sample # 93P4644. angular chert; greywacky; wedge-shaped aggregates; very fine and fine irregular soft masses of carbonates in lower part.
    Bkss—84 to 96 centimeters (33.1 to 37.8 inches); very dark grayish brown (2.5Y 3/2) and olive brown (2.5Y 4/3) rubbed and 20 percent olive (5Y 4/3); weak medium and coarse prismatic parts to moderate medium angular blocky structure; very hard, firm, very sticky, very plastic; 0.5 very fine roots; 0.5 very fine and fine tubular pores; 37 percent slickensides (pedogenic); 1 percent medium irregular carbonate concretions; 1 percent by volume angular 2-39-75 millimeter serpentinite fragments; slight effervescence; clear wavy boundary. Lab sample # 93P4645. angular chert; greywacky; 10% of ped surface is (2.5Y 7/2) carbonates; few medium irregular soft masses and seams.
    BCk—96 to 115 centimeters (37.8 to 45.3 inches); olive brown (2.5Y 4/3) and olive gray (5Y 4/2) crushed; weak medium and coarse prismatic parts to weak medium angular blocky structure; firm, very sticky, very plastic; 0.5 very fine roots; 3.0 very fine tubular and 0.5 fine tubular pores; 10 percent black (N 2/0) manganese or iron-manganese stains and 15 percent pale yellow (5Y 8/2) carbonate coats; fine spherical iron-manganese concretions; 1 percent by volume angular 2-39-75 millimeter serpentinite fragments; strong effervescence; clear wavy boundary. Lab sample # 93P4646. angular chert; greywacky; seams of lime on upper stratified peralithic in random locations; seams and irregular soft masses; 4-cm tongues of B material extending into this horizon.
    Cr—115 to 150 centimeters (45.3 to 59.1 inches); reddish brown (5YR 5/4) and pale yellow (5Y 7/3) and dark grayish brown (10YR 4/2); black (N 2/0) manganese or iron-manganese stains; fragments; strong effervescence. Lab sample # 93P4647. seams of lime in upper stratified peralithic; Cr is greywacky sandstone of Franciscan melange; carbonates are strongly effervescent and firm.