IDENTIFIERS

  • Current Taxon Name (Soil Name): Timpson
  • OSD
  • Series Extent
  • User Site ID: TPTX419731TIMPSON
  • User Pedon ID: S86TX419001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - TAMU
  • Lab Pedon # - S86TX419001
  • NCSS Pedon Lab Data NASIS Record ID - 45744
  • 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: 31.8358612
  • Std. Longitude: -93.9496689
  • Datum: WGS84
  • Location Description: from the intersection of Farm Road 417 and Texas Highway 87 in Shelbyville; approximately 11 miles northeast on Farm Road 417 to Farm Road 139; 1.4 miles north on Farm Road 139; 0.6 mile west on logging road; 500 feet northwest on skid trail in compartment #8 of the Sabine National Forest.
  • Map Unit: MfA—Metcalf-Timpson complex, 0 to 2 percent slopes, mounded
  • State: Texas
  • County: TX419—Shelby
  • MLRA: 133B—Western Coastal Plain
  • Non-MLRA Soil Survey Area: TX419—Shelby County, Texas
  • 7.5 Minute USGS Quad: 31093-G8—Huxley, Texas

    • PEDON

  • Describers Name: Lane, Newman
  • Current Taxonomic Class: Coarse-silty, siliceous, semiactive, thermic Oxyaquic Glossudalfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Timpson
  • Classificaton Date - 5/21/2012
  • Sampled As Information:
  • Soil Name - Sawtown
  • Classificaton Date - 9/1/1986
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified


    • SITE

  • Landscape: coastal plain
  • Landform: interfluve
  • Microfeature: mound
  • Drainage Class: moderately well
  • Geology: Wilcox Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1986 (actual site observation date)
  • Air Photo ID: 11D
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - intermixed conifers and hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

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    A—0 to 17 centimeters (0.0 to 6.7 inches); dark grayish brown (10YR 4/2), grayish brown (10YR 5/2), dry; silt loam; weak fine subangular blocky structure; soft, friable; 6.0 fine to coarse roots throughout; fragments; strongly acid, pH 5.4, pH meter; clear smooth boundary. Lab sample # TAMU2803; observed in pit, small
    E—17 to 34 centimeters (6.7 to 13.4 inches); yellowish brown (10YR 5/4) very fine sandy loam; weak medium subangular blocky structure; soft, very friable; 6.0 fine to coarse roots throughout; fragments; very strongly acid, pH 4.6, pH meter; clear smooth boundary. Lab sample # TAMU2804; observed in pit, small
    BE—34 to 52 centimeters (13.4 to 20.5 inches); strong brown (7.5YR 5/6) very fine sandy loam; moderate fine subangular blocky parts to moderate medium subangular blocky structure; soft, very friable; 6.0 fine to coarse roots throughout; 1 percent fine faint reddish yellow (5YR 6/6), moist, masses of oxidized iron and 1 percent fine distinct yellow (10YR 7/6), moist, masses of oxidized iron; fragments; extremely acid, pH 4.4, pH meter; clear smooth boundary. Lab sample # TAMU2805; observed in pit, small
    Bt1—52 to 69 centimeters (20.5 to 27.2 inches); strong brown (7.5YR 5/8) loam; weak coarse prismatic parts to weak fine subangular blocky structure; slightly hard, friable; 3.0 fine to coarse roots throughout; 7.0 very fine and 3.0 fine and medium pores; 6 percent faint clay films on all faces of peds; 1 percent fine distinct red (2.5YR 4/6), moist, masses of oxidized iron; fragments; very strongly acid, pH 4.6, pH meter; clear smooth boundary. Lab sample # TAMU2806; observed in pit, small
    Bt2—69 to 86 centimeters (27.2 to 33.9 inches); strong brown (7.5YR 5/6) loam; weak coarse prismatic parts to weak fine subangular blocky structure; slightly hard, friable; 0.5 fine to coarse roots; 6.0 very fine and 3.0 fine and medium pores; 6 percent faint clay films on all faces of peds; 1 percent fine faint reddish yellow (7.5YR 6/8), moist, masses of oxidized iron and 1 percent fine iron-manganese nodules; fragments; very strongly acid, pH 4.7, pH meter; clear smooth boundary. Lab sample # TAMU2807; observed in pit, small
    Bt3—86 to 110 centimeters (33.9 to 43.3 inches); yellowish brown (10YR 5/6) loam; weak coarse prismatic parts to moderate medium subangular blocky structure; slightly hard, friable; 0.5 fine to coarse roots; 3.0 medium and 6.0 fine and 0.5 coarse pores; 6 percent faint clay films on all faces of peds; 1 percent fine and medium , moist, iron-manganese nodules and 1 percent medium faint reddish yellow (7.5YR 6/6), moist, masses of oxidized iron and 2 percent pale brown (10YR 6/3), moist, clay depletions and 5 percent medium distinct yellowish red (5YR 5/6), moist, masses of oxidized iron; fragments; very strongly acid, pH 4.6, pH meter; clear smooth boundary. Lab sample # TAMU2808; observed in pit, small. About 20 percent of horizon is brittle.
    Bt/E—110 to 132 centimeters (43.3 to 52.0 inches); light yellowish brown (10YR 6/4) loam; weak fine prismatic parts to moderate fine subangular blocky structure; hard, friable; 0.5 fine to coarse roots; 3.0 fine and medium pores; 5 percent faint clay films on all faces of peds and 5 percent faint grayish brown (10YR 5/2), moist, clay films on vertical faces of peds; 1 percent fine prominent red (2.5YR 4/8), moist, masses of oxidized iron and 10 percent fine prominent 5YR 4/8 (5YR 4/8), moist, masses of oxidized iron and 10 percent medium prominent red (2.5YR 5/8), moist, masses of oxidized iron and 33 percent light gray (10YR 7/2), moist, clay depletions; fragments; 33 percent albic tongues (volume percent); very strongly acid, pH 4.9, pH meter; abrupt irregular boundary. Lab sample # TAMU2809; observed in pit, small
    2Btg/E—132 to 139 centimeters (52.0 to 54.7 inches); light brownish gray (10YR 6/2) clay loam; weak coarse prismatic parts to weak fine subangular blocky structure; extremely hard, very firm; 0.5 fine and medium roots; 0.5 fine pores; 5 percent clay films on all faces of peds; 1 percent fine distinct brownish yellow (10YR 6/6), moist, masses of oxidized iron and 10 percent medium and coarse prominent red (2.5YR 4/6), moist, masses of oxidized iron and 42 percent light gray (10YR 7/2), moist, clay depletions; fragments; 42 percent albic tongues (volume percent); very strongly acid, pH 5.0, pH meter; clear smooth boundary. Lab sample # TAMU2810; observed in pit, small
    2Btg1—139 to 155 centimeters (54.7 to 61.0 inches); gray (10YR 6/1) clay loam; weak coarse prismatic parts to moderate fine subangular blocky structure; extremely hard, very firm; 0.5 fine and medium roots; 0.5 fine pores; 5 percent pressure faces on all faces of peds and 5 percent slickensides (pedogenic); 1 percent fine distinct strong brown (7.5YR 5/6), moist, masses of oxidized iron and 8 percent medium and coarse prominent red (2.5YR 4/6), moist, masses of oxidized iron; fragments; very strongly acid, pH 4.6, pH meter; gradual wavy boundary. Lab sample # TAMU2811; observed in pit, small
    2Btg2—155 to 185 centimeters (61.0 to 72.8 inches); light brownish gray (10YR 6/2) clay loam; weak coarse prismatic parts to moderate fine subangular blocky structure; extremely hard, very firm; 0.5 fine and medium roots; 0.5 fine pores; 5 percent pressure faces on all faces of peds and 20 percent clay films on all faces of peds; 1 percent fine distinct strong brown (7.5YR 5/8), moist, masses of oxidized iron and 21 percent medium and coarse distinct yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; very strongly acid, pH 4.6, pH meter; gradual smooth boundary. Lab sample # TAMU2812; observed in pit, small
    2B't3—185 to 203 centimeters (72.8 to 79.9 inches); strong brown (7.5YR 5/8) sandy clay loam; weak medium prismatic parts to weak fine subangular blocky structure; very hard, firm; 0.5 fine and medium roots; 0.5 fine and medium pores; 25 percent dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds; 21 percent medium prominent light brownish gray (10YR 6/2), moist, iron depletions and 21 percent medium and coarse distinct yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; very strongly acid, pH 4.5, pH meter. Lab sample # TAMU2813; observed in pit, small