IDENTIFIERS

  • Current Taxon Name (Soil Name): Lomart
  • OSD
  • Series Extent
  • User Site ID: S1983C-TX131-899
  • User Pedon ID: 99TX131004
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - KSSL
  • Lab Pedon # - 00P0527
  • NCSS Pedon Lab Data NASIS Record ID - 12032
  • Print Date: 11/24/2024

    • 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: 27.9247227
  • Std. Longitude: -98.6978607
  • Datum: WGS84
  • Map Unit: 899—Lomart loam, 1 to 5 percent slopes
  • Country: US—United States
  • State: Texas
  • County: TX131—Duval
  • MLRA: 83C—Central Rio Grande Plain
  • Non-MLRA Soil Survey Area: TX131—Duval County, Texas
  • 7.5 Minute USGS Quad: 27098-H6—Freer NW, Texas

    • PEDON

  • Describers Name: Paul Holland, Alan Stahnke
  • Current Taxonomic Class: Coarse-loamy, mixed, superactive, hyperthermic Aridic Haplustepts
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon #: 4
  • Correlated Information:
  • Soil Name - Lomart
  • PSC - 25 to 100 cm.
  • Classificaton Date - 4/9/2014
  • Classifier - Gary Harris
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - ustic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Lomart
  • Classificaton Date - 12/8/1999
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • QA Status: level 1


    • SITE

  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Slope Complexity: complex
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: strongly coherent moderate weathered sandstone, calcareous at 179cm with 100 to <200
  • Geology: Catahoula formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/8/1999 (actual site observation date)
  • Air Photo ID: 8C
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - shrub cover
  • Site Obs. Cover Kind 2 - rangeland, shrubby
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, paralithic

    bedrock, lithic

    weakly coherent

    strongly coherent

    62 - 179

    179 - 200

    - 117 -

    —
    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    calcic horizon

    paralithic materials

    lithic contact

    0—18

    18—62

    62—179

    179—200

    —18—

    —44—

    —117—

    —-
    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

    3

    61

    40

    152

    —

    140

    611

    —

    —

    22

    28

    13

    22

    —

    —

    —

    —

    TX3341

    Freer, TX3341

    TAPS
    A—0 to 18 centimeters (0.0 to 7.1 inches); brown (10YR 5/3), brown (10YR 4/3), moist; loam; moderate coarse subangular blocky, and moderate medium subangular blocky, and weak fine subangular blocky, and weak fine granular structure; soft, very friable; 1.0 very fine roots throughout and 2.0 medium roots throughout and 2.0 fine roots throughout; 1.0 very fine tubular and 2.0 fine tubular and 1.0 coarse tubular pores; 1 percent faint white (10YR 8/1) carbonate coats on faces of peds; 2 percent by volume nonflat angular moderately coherent cemented 2-?-75 millimeter sandstone, calcareous fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2; clear smooth boundary. Lab sample # 00P03317; observed in pit, small. Surface has a crust 5mm to 1cm thick that is generally coarser in texture and 1 chip lighter in color.; patchy - phpvsfiid 91738; patchy - phpvsfiid 91738
    Bk1—18 to 31 centimeters (7.1 to 12.2 inches); light yellowish brown (10YR 6/4), yellowish brown (10YR 5/4), moist; loam; weak coarse subangular blocky, and weak medium subangular blocky, and weak fine subangular blocky structure; soft, very friable; 1.0 very fine roots throughout and 2.0 medium roots throughout and 3.0 fine roots throughout; 1.0 very fine tubular and 1.0 fine tubular pores; 2 percent faint white (10YR 8/1) carbonate coats on faces of peds; 1 percent fine prominent threadlike white (10YR 8/1) carbonate masses on faces of peds; 5 percent by volume flat angular moderately coherent cemented 2-?-150 millimeter sandstone, calcareous fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2; clear smooth boundary. Lab sample # 00P03318; observed in pit, small. patchy - phpvsfiid 91739; patchy - phpvsfiid 91739
    Bk2—31 to 62 centimeters (12.2 to 24.4 inches); pale yellow (2.5Y 7/4), olive yellow (2.5Y 6/6), moist; loam; weak fine subangular blocky, and weak medium subangular blocky, and weak coarse subangular blocky structure; slightly hard, friable; 1.0 very fine roots throughout and 2.0 medium roots throughout and 3.0 fine roots throughout; 1.0 very fine tubular and 1.0 fine tubular pores; 2 percent prominent white (10YR 8/1) carbonate coats on faces of peds and 100 percent prominent white (10YR 8/1) carbonate coats on rock fragments; 2 percent fine prominent spherical extremely weakly coherent cemented white (10YR 8/1) carbonate masses throughout and 2 percent fine prominent threadlike white (10YR 8/1) carbonate masses on faces of peds; 10 percent by volume flat angular moderately coherent cemented 2-?-150 millimeter sandstone, calcareous fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2; abrupt smooth boundary. Lab sample # 00P03319; observed in pit, small. continuous - phpvsfiid 91740; patchy - phpvsfiid 91741; continuous - phpvsfiid 91740; patchy - phpvsfiid 91741
    Cr/B1—62 to 104 centimeters (24.4 to 40.9 inches); 25 percent pale yellow (2.5Y 7/4), 25 percent olive yellow (2.5Y 6/6), moist; stratified stratified loam; structureless single grain; soft, friable; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0. Lab sample # 00P03320; observed in pit, small
    Cr/B1—62 to 104 centimeters (24.4 to 40.9 inches); 75 percent pale yellow (2.5Y 7/4), 75 percent light yellowish brown (2.5Y 6/4), moist; stratified stratified bedrock; moderate medium platy structure; moderately hard, firm; 2.0 very fine roots around fragments and 3.0 fine roots around fragments; 100 percent prominent white (10YR 8/1) carbonate coats on rock fragments; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0; clear smooth boundary. Lab sample # 00P03320; observed in pit, small. continuous - phpvsfiid 91742; continuous - phpvsfiid 91742
    Cr/B2—104 to 179 centimeters (40.9 to 70.5 inches); 30 percent olive yellow (2.5Y 6/6), 30 percent pale yellow (2.5Y 7/4), moist; stratified stratified loam; structureless single grain; soft, friable; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0; very abrupt smooth boundary. Lab sample # 00P03321; observed in pit, small
    Cr/B2—104 to 179 centimeters (40.9 to 70.5 inches); 70 percent pale olive (5Y 6/3), 70 percent pale yellow (5Y 7/3), moist; stratified stratified bedrock; moderate medium platy structure; moderately hard, firm; 1.0 medium roots around fragments; 5 percent fine irregular strongly coherent cemented gypsum crystal clusters throughout and 5 percent medium irregular strongly coherent cemented gypsum crystal clusters throughout; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0; clear smooth boundary. Lab sample # 00P03321; observed in pit, small
    R—179 to 200 centimeters (70.5 to 78.7 inches); light yellowish brown (2.5Y 6/3), light olive brown (2.5Y 5/3), moist; structureless massive; rigid, rigid, very strongly coherent; 1.0 medium roots around fragments; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0. Lab sample # 00P03322; observed in pit, small