IDENTIFIERS

  • Current Taxon Name (Soil Name): Delfina
  • OSD
  • Series Extent
  • User Site ID: S1978TX489001
  • User Pedon ID: 78TX489001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 78P0416
  • NCSS Pedon Lab Data NASIS Record ID - 45970
  • Print Date: 12/4/2024

    • 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: 26.4458332
  • Std. Longitude: -97.9138870
  • Datum: WGS84
  • Location Description: Willacy County, TX 15 meters W of Type location 4.5 km S of FM 1015 TH 186 intersection of County rd 107 meters S and 15 meters E.
  • State: Texas
  • County: TX489—Willacy
  • MLRA: 83D—Lower Rio Grande Plain

    • PEDON

  • Current Taxonomic Class: Fine-loamy, mixed, superactive, hyperthermic Typic Haplustalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Delfina
  • PSC - 41 to 91 cm.
  • Classificaton Date - 6/26/2015
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - ustic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Delfina
  • Taxonomic Class - Fine-loamy, mixed, hyperthermic Aquic Haplustalf
  • Taxon Kind - series
  • Classificaton Date - 9/1/1978
  • Moisture Class - ustic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • QA Status: level 1


    • SITE

  • Landscape: hills
  • Landform: dune
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1978 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—41

    41—290

    —-

    —-
    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

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); grayish brown (10YR 5/2) interior, very dark grayish brown (10YR 3/2) interior, moist; fine sandy loam; massive; slightly hard, friable; 0.5 fine roots; fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 78P02310. few fine roots
    A—18 to 41 centimeters (7.1 to 16.1 inches); brown (7.5YR 4/2) interior, dark brown (7.5YR 3/2) interior, moist; fine sandy loam; moderate coarse prismatic, and weak medium subangular blocky structure; hard, friable; 2.5 roots; 2.5 fine tubular pores; fragments; neutral, pH 7.0, hellige-truog; abrupt smooth boundary. Lab sample # 78P02311. common roots
    Bt1—41 to 63 centimeters (16.1 to 24.8 inches); brown (7.5YR 4/2) interior, dark brown (7.5YR 3/2) interior, moist; sandy clay loam; moderate coarse prismatic, and moderate medium subangular blocky, and moderate medium angular blocky structure; extremely hard, firm; 2.5 fine roots; 2.5 fine tubular pores; clay films on vertical faces of peds; fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 78P02312. common fine roots; patchy - phpvsfiid 1191384; patchy - phpvsfiid 1191384
    Bt2—63 to 81 centimeters (24.8 to 31.9 inches); brown (7.5YR 4/3) interior, dark brown (7.5YR 3/3) interior, moist; sandy clay loam; 1 percent reddish brown (5YR 5/4) fine and 1 percent gray (10YR 5/1) fine mottles; strong coarse prismatic, and moderate medium angular blocky, and moderate medium subangular blocky structure; extremely hard, firm; 2.5 fine roots; 0.5 fine tubular pores; clay films on faces of peds; fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 78P02313. common fine roots; few fine 5YR54 mottles; few fine 10YR51 mottles; continuous - phpvsfiid 1191385; continuous - phpvsfiid 1191385
    Bt3—81 to 99 centimeters (31.9 to 39.0 inches); brown (7.5YR 4/4) interior, dark brown (7.5YR 3/4) interior, moist; sandy clay loam; 30 percent reddish brown (5YR 5/4) fine and 30 percent light olive brown (2.5Y 5/6) fine mottles; moderate medium angular blocky, and strong coarse prismatic, and moderate medium subangular blocky structure; 2.5 fine roots; 2.5 fine tubular pores; clay films on faces of peds; fragments; neutral, pH 7.0, hellige-truog; gradual smooth boundary. Lab sample # 78P02314. common fine roots; many fine 5YR54 mottles; many fine 2.5Y56 mottles; continuous - phpvsfiid 1191386; continuous - phpvsfiid 1191386
    Bt4—99 to 147 centimeters (39.0 to 57.9 inches); brown (7.5YR 5/4) interior, brown (7.5YR 4/4) interior, moist; sandy clay loam; 1 percent reddish brown (2.5YR 5/4) and 1 percent gray (10YR 5/1) mottles; weak prismatic, and moderate medium subangular blocky structure; extremely hard, firm; 0.5 fine roots; 0.5 fine tubular pores; clay films on faces of peds; fragments; slightly alkaline, pH 7.6, hellige-truog; gradual smooth boundary. Lab sample # 78P02315. few fine roots; few 2.5YR54 mottles; few 10YR51 mottles; continuous - phpvsfiid 1191387; continuous - phpvsfiid 1191387
    Btk1—147 to 183 centimeters (57.9 to 72.0 inches); reddish yellow (5YR 7/6) interior, reddish yellow (5YR 6/6) interior, moist; sandy clay loam; 1 percent black (10YR 2/1) fine and 1 percent gray (10YR 5/1) fine mottles; weak very coarse prismatic, and weak medium subangular blocky structure; very hard, firm; 0.5 fine roots; 0.5 fine tubular pores; clay films on faces of peds; 1 percent threadlike lime masses; fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; gradual smooth boundary. Lab sample # 78P02316. few soft masses of lime concentrations; few fine roots; few fine 10YR21 mottles; few fine 10YR51 mottles; patchy - phpvsfiid 1191388; patchy - phpvsfiid 1191388
    Btk2—183 to 244 centimeters (72.0 to 96.1 inches); reddish yellow (5YR 7/6) interior, reddish yellow (5YR 6/6) interior, moist; sandy clay loam; 1 percent dark gray (10YR 4/1) fine mottles; weak medium subangular blocky, and weak very coarse prismatic structure; very hard, friable; 0.5 fine roots; 0.5 fine tubular pores; 15 percent skeletans; 1 percent threadlike lime masses; fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; gradual smooth boundary. Lab sample # 78P02317. few soft masses of lime concentrations; few skeletans (sand or silt) surface features; few fine roots; few fine 10YR41 mottles
    Btk3—244 to 290 centimeters (96.1 to 114.2 inches); reddish yellow (5YR 7/6) interior, reddish yellow (5YR 6/6) interior, moist; sandy clay loam; weak subangular blocky structure; very hard, friable; 15 percent clay films; 11 percent lime masses; fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog. Lab sample # 78P02318. common soft masses of lime concentrations; few clay films surface features; patchy - phpvsfiid 1191390; patchy - phpvsfiid 1191390