IDENTIFIERS

  • Current Taxon Name (Soil Name): Pengra
  • OSD
  • Series Extent
  • User Site ID: S1996OR003002
  • User Pedon ID: S1996OR003002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 96P0348
  • NCSS Pedon Lab Data NASIS Record ID - 68426
  • Print Date: 2/1/2025

    • 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: 44.5769463
  • Std. Longitude: -123.3046112
  • Datum: WGS84
  • State: Oregon
  • County: OR003—Benton
  • Non-MLRA Soil Survey Area: OR003—Benton County, Oregon
  • 7.5 Minute USGS Quad: 44123-E3—Corvallis, Oregon

    • PEDON

  • Describers Name: Kathy Verble
  • Current Taxonomic Class: Fine, smectitic, mesic Vertic Epiaqualfs
  • Current Taxon Kind: taxadjunct
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Pengra
  • PSC - 25 to 100 cm.
  • Classificaton Date - 6/15/2007
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - SND
  • Taxonomic Class - Fine-loamy, mixed, mesic Typic Xerumbrept
  • Classificaton Date - 8/28/1996
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Hill Slope Profile: footslope
  • Slope Shape Across: concave
  • Slope Shape Down: concave
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/28/1996 (actual site observation date)
  • Surface Cover Properties:
  • 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

    umbric epipedon

    cambic horizon

    argillic horizon

    0—27

    46—95

    70—109

    —-

    —-

    —-
    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

    —

    —

    —

    108

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 7 centimeters (0.0 to 2.8 inches); very dark grayish brown (10YR 3/2), brown (10YR 5/3), dry; silt loam; moderate very fine subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 21.0 very fine roots and 3.0 fine roots; fragments; clear smooth boundary. Lab sample # 96P02703
    A2—7 to 14 centimeters (2.8 to 5.5 inches); very dark grayish brown (10YR 3/2), brown (10YR 5/3), dry; silt loam; moderate very fine subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 21.0 very fine roots and 3.0 fine roots; strong brown (7.5YR 5/6) masses of oxidized iron and strong brown (7.5YR 4/6) masses of oxidized iron and yellowish red (5YR 5/6) masses of oxidized iron and 21 percent fine yellowish red (5YR 4/6) masses of oxidized iron; fragments; abrupt smooth boundary. Lab sample # 96P02704
    A3—14 to 27 centimeters (5.5 to 10.6 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; silt loam; moderate medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 21.0 very fine roots and 3.0 fine roots; 3.0 very fine pores; 3 percent medium dark brown (7.5YR 3/4) masses of oxidized iron and 21 percent fine dark yellowish brown (10YR 4/6) masses of oxidized iron; yellowish brown (10YR 5/6) and brown (7.5YR 4/4); fragments; gradual smooth boundary. Lab sample # 96P02705
    AB—27 to 36 centimeters (10.6 to 14.2 inches); dark grayish brown (10YR 4/2), grayish brown (10YR 5/2), dry; silt loam; weak coarse subangular blocky structure; hard, friable, moderately sticky, slightly plastic; 21.0 very fine roots and 3.0 fine roots; 3.0 very fine tubular pores; 1 percent medium strong brown (7.5YR 4/6) masses of oxidized iron and 3 percent fine dark yellowish brown (10YR 4/6) masses of oxidized iron; yellowish brown (10YR 5/6) and strong brown (7.5YR 5/6); fragments; gradual smooth boundary. Lab sample # 96P02706. Few fine manganese nodules less than 1.0mm in diameter
    B/E—36 to 50 centimeters (14.2 to 19.7 inches); 65 percent dark yellowish brown (10YR 4/4) and strong brown (7.5YR 4/6) and 35 percent grayish brown (10YR 5/2) and light brownish gray (10YR 6/2), light yellowish brown (10YR 6/4) and strong brown (7.5YR 5/6), dry; silt loam; weak medium prismatic parts to moderate medium subangular blocky structure; hard, friable, moderately sticky, slightly plastic; 3.0 very fine roots; 3.0 very fine vesicular pores; fragments; clear smooth boundary. Lab sample # 96P02707. Planar faces of peds have low chroma depletion about 1.0mm thick; few fine manganese nodules less than 2 millimeters in diameter.
    E/B—50 to 70 centimeters (19.7 to 27.6 inches); 60 percent grayish brown (10YR 5/2) and 40 percent yellowish brown (10YR 5/6) and strong brown (7.5YR 4/6), light gray (10YR 7/2) and brownish yellow (10YR 6/6) and strong brown (7.5YR 5/6), dry; silty clay loam; moderate medium prismatic parts to moderate coarse subangular blocky structure; hard, friable, moderately sticky, slightly plastic; 0.5 very fine roots; 3.0 very fine vesicular pores; fragments; abrupt wavy boundary. Lab sample # 96P02708. Planar faces of peds are mores strongly depleted and have thicker layer of depletion than horizon above, few fine manganese nodules less than 2 millimeters in diameter.
    2Bt1—70 to 92 centimeters (27.6 to 36.2 inches); grayish brown (2.5Y 5/2), light brownish gray (2.5Y 6/2), dry; silty clay; massive; very hard, very firm, moderately sticky, moderately plastic; 0.5 very fine roots; 0.5 very fine tubular pores; 10 percent distinct clay films in root channels and/or pores; 21 percent fine strong brown (7.5YR 5/6) masses of oxidized iron; strong brown (7.5YR 5/8) and reddish yellow (7.5YR 6/6) and reddish yellow (7.5YR 6/8); fragments; gradual wavy boundary. Lab sample # 96P02709. very few distinct slickensides
    3Bt2—92 to 109 centimeters (36.2 to 42.9 inches); light olive brown (2.5Y 5/3), light yellowish brown (2.5Y 6/3), dry; silty clay; massive; very hard, very firm, moderately sticky, moderately plastic; 0.5 very fine roots; 0.5 very fine tubular pores; 10 percent distinct clay films in root channels and/or pores; 1 percent fine iron-manganese concretions and 3 percent fine yellowish brown (10YR 5/8) masses of oxidized iron; brownish yellow (10YR 6/8); 2 percent by volume 20-48-75 millimeter sandstone, unspecified fragments; gradual smooth boundary. Lab sample # 96P02710. Few fine iron nodules; Few distinct slickensides
    3Bss—109 to 142 centimeters (42.9 to 55.9 inches); olive brown (2.5Y 4/4), light yellowish brown (2.5Y 6/4), dry; silty clay; massive; very hard, very firm, moderately sticky, moderately plastic; 0.5 very fine roots; 0.5 very fine tubular pores; 10 percent distinct clay films in root channels and/or pores; 1 percent fine iron-manganese concretions and 3 percent fine yellowish brown (10YR 5/8) masses of oxidized iron; brownish yellow (10YR 6/8); 2 percent by volume 20-48-75 millimeter sandstone, unspecified fragments; gradual smooth boundary. Lab sample # 96P02711. Few fine iron nodules and few fine manganese concretions. Common prominent slickensides
    4Crt1—142 to 155 centimeters (55.9 to 61.0 inches); light yellowish brown (2.5Y 6/3) and strong brown (7.5YR 5/6) and strong brown (7.5YR 4/6) and pale yellow (2.5Y 7/3), reddish yellow (7.5YR 6/6) and strong brown (7.5YR 5/6) and yellowish brown (10YR 5/8) and brownish yellow (10YR 6/8), dry; 0.5 very fine roots; 0.5 very fine tubular pores; 1 percent prominent black (N 2/0) manganese or iron-manganese stains and 1 percent prominent clay films in root channels and/or pores; fragments; abrupt broken boundary. Lab sample # 96P02712. Few fine prominent white gypsum crystal clusters. Colors are for highly weathered sand stone. There are also areas of less weathered sandstone of yellowish brown (10YR 5/8), brownish yellow 10YR 6/8 dry. Manganese stains on fractures in sandstone.
    4Crt2—155 to 170 centimeters (61.0 to 66.9 inches); light yellowish brown (2.5Y 6/3) and light yellowish brown (2.5Y 6/4) and brownish yellow (10YR 6/8), pale yellow (2.5Y 7/3) and pale yellow (2.5Y 7/4) and yellow (10YR 7/8), dry; 0.5 very fine roots; 1 percent prominent black (N 2/0) manganese or iron-manganese stains and 1 percent prominent clay films in root channels and/or pores; fragments. Colors for highly weathered sandstone, there are areas of less weathered sandstone with colors 2.5Y 6/4 and 10YR 6/8, 2.5Y 7/4 and 10YR 7/8 dry. Iron-manganese planes are on fracture surfaces in sandstone.