IDENTIFIERS

  • Current Taxon Name (Soil Name): Spindletop
  • OSD
  • Series Extent
  • User Site ID: S2009TX1572320
  • User Pedon ID: S09TX1572320
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 10N0610
  • NCSS Pedon Lab Data NASIS Record ID - 41202
  • 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: 29.3582230
  • Std. Longitude: -95.6404419
  • Datum: WGS84
  • Country: US—United States
  • State: Texas
  • County: TX157—Fort Bend
  • Non-MLRA Soil Survey Area: TX157—Fort Bend County, Texas

    • PEDON

  • Describers Name: Jon Wiedenfeld
  • Current Taxonomic Class: Fine-loamy, siliceous, active, hyperthermic Typic Argiudolls
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - Spindletop
  • Taxonomic Class - Fine-loamy, siliceous, active, hyperthermic Typic Argiudolls
  • Taxon Kind - taxadjunct
  • PSC - 52 to 102 cm.
  • Classificaton Date - 1/21/2010
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1


    • SITE

  • Parent Material: loamy eolian deposits
  • Landscape: coastal plain
  • Landform: flat
  • Microfeature: pimple mound
  • Geomorphic Component Flats: rise
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: moderately well
  • Geology: Beaumont formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/21/2010 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • 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

    redox concentrations

    argillic horizon

    abrupt textural change

    0—16

    0—185

    52—203

    52—

    —-

    —-

    —-

    —-
    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

    0.3

    —

    —

    —

    —

    135

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 16 centimeters (0.0 to 6.3 inches); very dark grayish brown (10YR 3/2), dark grayish brown (10YR 4/2), dry; very fine sandy loam; weak medium subangular blocky, and moderate medium granular structure; soft, very friable; 3 percent fine distinct dark yellowish brown (10YR 4/6) masses of oxidized iron with sharp boundaries lining pores; fragments; noneffervescent; clear smooth boundary.; slightly moist when described; observed in pit, small
    A2—16 to 33 centimeters (6.3 to 13.0 inches); very dark grayish brown (10YR 3/2) very fine sandy loam; weak medium subangular blocky structure; soft, very friable; 3 percent fine distinct dark yellowish brown (10YR 4/6) masses of oxidized iron with sharp boundaries lining pores; fragments; noneffervescent; gradual smooth boundary.; moist when described; observed in pit, small
    E—33 to 52 centimeters (13.0 to 20.5 inches); brown (10YR 5/3) very fine sandy loam; weak medium subangular blocky structure; soft, very friable; 2 percent fine prominent brownish yellow (10YR 6/8) masses of oxidized iron with sharp boundaries lining pores and 3 percent fine distinct yellowish brown (10YR 5/8) masses of oxidized iron with sharp boundaries lining pores; fragments; noneffervescent; abrupt smooth boundary.; very moist when described; observed in pit, small
    Bt1—52 to 92 centimeters (20.5 to 36.2 inches); dark grayish brown (10YR 4/2) sandy clay loam; moderate medium prismatic parts to moderate medium angular blocky structure; hard, friable; 15 percent distinct dark grayish brown (10YR 4/2) clay films on all faces of peds; 1 percent fine faint spherical moderately coherent cemented black (7.5YR 2.5/1) iron-manganese nodules with sharp boundaries in matrix and 2 percent fine prominent strong brown (7.5YR 5/8) masses of oxidized iron with sharp boundaries in matrix surrounding redox concentrations and 3 percent medium prominent yellowish brown (10YR 5/8) masses of oxidized iron with clear boundaries in matrix surrounding redox concentrations and 5 percent medium distinct brownish yellow (10YR 6/6) masses of oxidized iron with diffuse boundaries in matrix surrounding redox concentrations; fragments; noneffervescent; gradual wavy boundary.; slightly moist when described; observed in pit, small
    Bt2—92 to 119 centimeters (36.2 to 46.9 inches); grayish brown (10YR 5/2) sandy clay loam; strong coarse prismatic parts to strong coarse angular blocky structure; very hard, firm; 20 percent distinct grayish brown (10YR 5/2) clay films on all faces of peds; 8 percent fine prominent brownish yellow (10YR 6/8) masses of oxidized iron with clear boundaries in matrix surrounding redox concentrations and 10 percent medium distinct yellowish brown (10YR 5/6) masses of oxidized iron with clear boundaries in matrix surrounding redox concentrations; fragments; noneffervescent; gradual wavy boundary.; slightly moist when described; observed in pit, small
    Bt3—119 to 159 centimeters (46.9 to 62.6 inches); light olive brown (2.5Y 5/4) clay; moderate coarse prismatic parts to moderate coarse angular blocky structure; very hard, very firm; 10 percent distinct pressure faces and 20 percent distinct light olive brown (2.5Y 5/4) clay films on all faces of peds; 1 percent fine distinct black (10YR 2/1) iron-manganese masses with sharp boundaries in matrix and 5 percent fine faint yellow (2.5Y 7/8) masses of oxidized iron with clear boundaries in matrix; fragments; noneffervescent; gradual wavy boundary.; slightly moist when described; observed in pit, small
    2Bt4—159 to 185 centimeters (62.6 to 72.8 inches); strong brown (7.5YR 5/6) clay loam; moderate coarse prismatic parts to moderate coarse angular blocky structure; very hard, firm; 25 percent distinct strong brown (7.5YR 4/6) clay films on all faces of peds; 2 percent fine faint yellowish brown (10YR 5/6) masses of oxidized iron with sharp boundaries in matrix surrounding redox concentrations and 8 percent medium distinct yellowish red (5YR 4/6) masses of oxidized iron with sharp boundaries in matrix; fragments; noneffervescent; clear wavy boundary.; slightly moist when described; observed in pit, small
    2BCt—185 to 203 centimeters (72.8 to 79.9 inches); strong brown (7.5YR 5/6) sandy clay loam; moderate very coarse prismatic parts to moderate very coarse angular blocky structure; hard, friable; 40 percent distinct brown (7.5YR 5/4) clay films on all faces of peds; 3 percent fine faint strong brown (7.5YR 5/6) clay depletions on vertical faces of peds; fragments; noneffervescent.; slightly moist when described; observed in pit, small