IDENTIFIERS

  • Current Taxon Name (Soil Name): Thatuna
  • OSD
  • Series Extent
  • User Site ID: S1998WA063004
  • User Pedon ID: S1998WA063004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Pedon # - 99P0329
  • NCSS Pedon Lab Data NASIS Record ID - 11188
  • Print Date: 2/3/2025

    • 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: 47.2818413
  • Std. Longitude: -117.2276535
  • Datum: WGS84
  • Township: 21N
  • Range: 44E
  • Section: 27
  • PLSS Details: SW 1/4 NW 1/4
  • Location Description: About 4 miles south of Waverly, Washington; about 2,600 feet south and 100 feet east of the intersection of Darknell and Ray Road
  • Map Unit: 6130—Thatuna-Naff complex, 8 to 15 percent slopes
  • State: Washington
  • County: WA063—Spokane
  • MLRA: 9—Palouse and Nez Perce Prairies
  • Non-MLRA Soil Survey Area: WA063—Spokane County, Washington
  • 7.5 Minute USGS Quad: 47117-C2—Latah, Washington

    • PEDON

  • Describers Name: Sue Murphy
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Vitrandic Argixerolls
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Thatuna
  • PSC - 69 to 119 cm.
  • Classificaton Date - 2/9/2012
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - xeric
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Thatuna
  • Classificaton Date - 10/9/1998
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: fine-silty noncalcareous loess
  • Landform: loess hill
  • Geomorphic Component Hills: base slope
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Slope Complexity: simple
  • Slope Shape Across: concave
  • Slope Shape Down: concave
  • Runoff: very low
  • Drainage Class: moderately well
  • Geology: Palouse Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/9/1998 (actual site observation date)
  • Air Photo ID: D3
  • Plant Association Name: PSSPS-FEID
  • 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
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    volcanic glass

    argillic horizon

    0—46

    0—46

    69—152

    —46—

    —46—

    —83—
    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

    17

    —

    —

    2620

    —

    8

    559

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap1—0 to 15 centimeters (0.0 to 5.9 inches); dark grayish brown (10YR 4/2) crushed, very dark brown (10YR 2/2) crushed, moist; silt loam; 20 percent clay; weak fine subangular blocky parts to moderate fine platy, and weak fine subangular blocky parts to moderate medium platy structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 very fine roots throughout and 0.5 fine roots throughout; 5.0 very fine low-continuity irregular and 5.0 very fine low-continuity tubular and 5.0 fine low-continuity irregular and 5.0 fine low-continuity tubular pores; fragments; strongly acid, pH 5.3, hellige-truog; clear smooth boundary.; observed in trench
    Ap2—15 to 28 centimeters (5.9 to 11.0 inches); dark grayish brown (10YR 4/2) crushed, very dark brown (10YR 2/2) crushed, moist; silt loam; 20 percent clay; weak medium subangular blocky, and weak medium angular blocky structure; hard, friable, slightly sticky, slightly plastic; 3.0 very fine roots throughout and 0.5 fine roots throughout; 3.0 very fine low-continuity irregular and 3.0 very fine low-continuity tubular and 3.0 fine low-continuity irregular and 3.0 fine low-continuity tubular pores; fragments; strongly acid, pH 5.3, hellige-truog; abrupt smooth boundary.; observed in trench
    AB—28 to 46 centimeters (11.0 to 18.1 inches); brown (10YR 5/3) crushed, dark brown (10YR 3/3) interior, moist; silt loam; 23 percent clay; moderate medium subangular blocky structure; hard, firm, slightly sticky, slightly plastic; 0.5 very fine roots throughout and 0.5 fine roots throughout; 3.0 very fine low-continuity irregular and 3.0 very fine low-continuity tubular and 0.5 medium low-continuity vesicular and 3.0 fine low-continuity irregular and 3.0 fine low-continuity tubular pores; 10 percent faint clay bridges on all faces of peds; fragments; slightly acid, pH 6.3, hellige-truog; clear wavy boundary.; observed in trench. discontinuous - phpvsfiid 20545; discontinuous - phpvsfiid 20545
    EB—46 to 53 centimeters (18.1 to 20.9 inches); brown (10YR 5/3) broken face and dark brown (10YR 3/3) crushed, dark yellowish brown (10YR 3/4) exterior, moist; silt loam; 24 percent clay; moderate fine subangular blocky, and moderate medium subangular blocky structure; hard, firm, slightly sticky, slightly plastic; 0.5 very fine roots throughout; 3.0 very fine low-continuity tubular and 0.5 medium low-continuity vesicular and 0.5 fine low-continuity vesicular pores; 35 percent faint silt coats on all faces of peds; 1 percent fine spherical iron-manganese concretions in matrix; fragments; slightly acid, pH 6.5, hellige-truog; clear wavy boundary.; observed in trench. patchy - phpvsfiid 20546; patchy - phpvsfiid 20546
    E—53 to 69 centimeters (20.9 to 27.2 inches); brown (10YR 5/3) broken face and dark brown (10YR 3/3) crushed, dark yellowish brown (10YR 3/4) exterior, moist; silt loam; 18 percent clay; massive; hard, friable, slightly sticky, slightly plastic; 0.5 very fine roots throughout; 3.0 very fine low-continuity tubular and 0.5 medium low-continuity vesicular and 0.5 fine low-continuity vesicular pores; 15 percent faint clay films on surfaces along pores and 15 percent faint clay films on surfaces along root channels and 35 percent prominent silt coats on all faces of peds; 1 percent fine spherical iron-manganese concretions in matrix; fragments; neutral, pH 7.1, hellige-truog; abrupt wavy boundary.; observed in trench. discontinuous - phpvsfiid 20547; discontinuous - phpvsfiid 20548; discontinuous - phpvsfiid 20549; discontinuous - phpvsfiid 20547; discontinuous - phpvsfiid 20548; discontinuous - phpvsfiid 20549
    Btb/E—69 to 84 centimeters (27.2 to 33.1 inches); brown (10YR 5/3) broken face and dark brown (10YR 3/3) crushed, dark yellowish brown (10YR 3/4) exterior, moist; silty clay loam; 32 percent clay; structureless massive; very hard, very firm, moderately sticky, moderately plastic; 0.5 very fine roots throughout; 3.0 very fine low-continuity tubular and 0.5 medium low-continuity vesicular and 0.5 fine low-continuity vesicular pores; 35 percent prominent skeletans on all faces of peds; 1 percent fine spherical iron-manganese concretions in matrix and 30 percent medium dark yellowish brown (10YR 4/6), moist, iron-manganese masses in matrix and 30 percent medium brown (10YR 5/3), moist, iron-manganese masses in matrix and 30 percent fine brown (10YR 5/3), moist, iron-manganese masses in matrix and 30 percent fine dark yellowish brown (10YR 4/6), moist, iron-manganese masses in matrix; ; fragments; neutral, pH 7.2, hellige-truog; clear wavy boundary.; observed in trench. B part; discontinuous - phpvsfiid 20553; discontinuous - phpvsfiid 20553
    Btb/E—69 to 84 centimeters (27.2 to 33.1 inches); brown (10YR 5/3) broken face and dark brown (10YR 3/3) crushed, dark yellowish brown (10YR 3/4) exterior, moist; silt loam; 18 percent clay; strong coarse prismatic parts to strong coarse subangular blocky, and strong medium prismatic parts to strong coarse subangular blocky structure; very hard, very firm, slightly sticky, slightly plastic; 0.5 very fine roots throughout; 3.0 very fine low-continuity tubular and 0.5 medium low-continuity vesicular and 0.5 fine low-continuity vesicular pores; 15 percent faint clay films and 15 percent faint clay films and 15 percent faint skeletans over cutans; 1 percent fine spherical iron-manganese masses in matrix; fragments; neutral, pH 7.2, hellige-truog; clear wavy boundary.; observed in trench. E part.; discontinuous - phpvsfiid 20550; discontinuous - phpvsfiid 20551; discontinuous - phpvsfiid 20552; discontinuous - phpvsfiid 20550; discontinuous - phpvsfiid 20551; discontinuous - phpvsfiid 20552
    Btb1—84 to 122 centimeters (33.1 to 48.0 inches); light yellowish brown (10YR 6/4) crushed, dark yellowish brown (10YR 4/4) crushed, moist; silty clay loam; 33 percent clay; moderate coarse subangular blocky structure; very hard, very firm, moderately sticky, very plastic; 0.5 very fine roots between peds; 3.0 very fine low-continuity tubular pores; 35 percent distinct organic stains on vertical faces of peds and 75 percent prominent dark yellowish brown (10YR 3/4), moist, clay films on vertical faces of peds; 1 percent fine spherical iron-manganese concretions in matrix and 1 percent fine spherical light yellowish brown (10YR 6/4), moist, iron-manganese masses in matrix and 1 percent fine spherical brown (10YR 5/3), moist, iron-manganese masses in matrix; ; fragments; neutral, pH 7.2, hellige-truog; gradual wavy boundary.; observed in trench. continuous - phpvsfiid 20556; discontinuous - phpvsfiid 20557; continuous - phpvsfiid 20556; discontinuous - phpvsfiid 20557
    Btb2—122 to 152 centimeters (48.0 to 59.8 inches); brown (10YR 5/3) broken face and dark brown (10YR 3/3) crushed, dark yellowish brown (10YR 3/4) exterior, moist; silty clay loam; 30 percent clay; strong medium subangular blocky, and strong coarse subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots between peds; 3.0 very fine low-continuity tubular pores; 35 percent distinct organic stains on vertical faces of peds and 75 percent prominent dark yellowish brown (10YR 3/4), moist, clay films on vertical faces of peds; 1 percent fine spherical light yellowish brown (10YR 6/4), moist, iron-manganese masses in matrix and 1 percent fine spherical brown (10YR 5/3), moist, iron-manganese masses in matrix and 1 percent fine spherical iron-manganese concretions in matrix; ; fragments; neutral, pH 7.0, hellige-truog.; observed in trench. continuous - phpvsfiid 20554; discontinuous - phpvsfiid 20555; continuous - phpvsfiid 20554; discontinuous - phpvsfiid 20555