IDENTIFIERS

  • Current Taxon Name (Soil Name): DELFINA
  • OSD
  • Series Extent
  • User Site ID: S1998TX131001
  • User Pedon ID: 98TX131001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 99P0127
  • NCSS Pedon Lab Data NASIS Record ID - 10986
  • 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: 27.3333340
  • Std. Longitude: -98.4401703
  • Datum: WGS84
  • Location Description: Duval County, TX; from the intersection of Texas Hwy 359 and Texas Hwy 339 in Benavides; south 18.0 miles on Texas Hwy 339, south 0.7 mile on county road, west 2.0 miles on county road, south 05 mile on county road; site is 50 feet west in pasture.
  • State: Texas
  • County: TX131—Duval
  • Non-MLRA Soil Survey Area: TX131—Duval County, Texas
  • 7.5 Minute USGS Quad: 27098-C4—Ramirez, Texas

    • PEDON

  • Describers Name: ACT, CLN, RM, PDH, DNB, AS
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - DELFINA
  • Taxonomic Class - Fine-loamy, mixed Typic Paleustalfs
  • PSC - 39 to 89 cm.
  • Classificaton Date - 10/26/1998
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: toeslope
  • Slope Shape Across: concave
  • Slope Shape Down: concave
  • Runoff: low
  • Drainage Class: well
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/26/1998 (actual site observation date)
  • Air Photo ID: AS 40D
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: wind and water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—39

    39—200

    —-

    —-
    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

    2

    —

    —

    111

    —

    180

    610

    —

    —

    22.8

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 33 centimeters (0.0 to 13.0 inches); yellowish brown (10YR 5/4), brown (10YR 5/3), moist; loamy fine sand; weak fine and medium subangular blocky parts to weak fine granular structure; soft, very friable; 8.0 very fine and fine roots throughout; 1.0 fine discontinuous tubular pores; fragments; noneffervescent; slightly acid, pH 6.4, hellige-truog; abrupt smooth boundary. Lab sample # 99P00640
    A—33 to 39 centimeters (13.0 to 15.4 inches); brown (10YR 5/3), brown (10YR 4/3), moist; loamy fine sand; 1 percent grayish brown (10YR 5/2) fine prominent mottles; weak medium and coarse subangular blocky structure; soft, very friable; 6.0 very fine and fine roots throughout; 4.0 fine discontinuous tubular pores; fragments; noneffervescent; moderately acid, pH 6.0, hellige-truog; abrupt smooth boundary. Lab sample # 99P00641
    Bt1—39 to 48 centimeters (15.4 to 18.9 inches); brown (7.5YR 5/4), brown (7.5YR 4/4), moist; sandy clay loam; 2 percent strong brown (7.5YR 5/6) fine prominent and 4 percent brown (7.5YR 5/2) fine prominent mottles; moderate coarse prismatic parts to moderate medium and coarse subangular blocky structure; friable; 6.0 very fine and fine roots in cracks; 4.0 fine tubular pores; 30 percent prominent brown (7.5YR 4/4) clay films on faces of peds and in pores; fragments; 2 percent krotovinas (volume percent); noneffervescent; moderately acid, pH 5.8, hellige-truog; gradual smooth boundary. Lab sample # 99P00642. patchy - phpvsfiid 202645; patchy - phpvsfiid 202645
    Bt2—48 to 71 centimeters (18.9 to 28.0 inches); brown (7.5YR 4/4), dark brown (7.5YR 3/4), moist; sandy clay loam; moderate coarse prismatic parts to moderate medium subangular blocky structure; extremely hard; 4.0 very fine and fine roots in cracks; 4.0 fine tubular pores; 75 percent prominent brown (7.5YR 4/3) clay films on faces of peds and in pores; fragments; 2 percent krotovinas (volume percent); slightly acid, pH 6.4, hellige-truog; clear smooth boundary. Lab sample # 99P00643. worm and termite krotovinas; discontinuous - phpvsfiid 202646; discontinuous - phpvsfiid 202646
    Bt3—71 to 86 centimeters (28.0 to 33.9 inches); brown (7.5YR 5/4), brown (7.5YR 4/4), moist; sandy clay loam; moderate coarse prismatic parts to moderate medium subangular blocky structure; extremely hard; 2.0 very fine and fine roots in cracks; 3.0 fine tubular pores; 1 percent organic stains on lower surfaces of peds or rocks and 35 percent prominent clay films on vertical faces of peds; fragments; 2 percent krotovinas (volume percent); neutral, pH 7.2, hellige-truog; clear smooth boundary. Lab sample # 99P00644. Concentration: ICB, 1, S, (location)-MAT; worm and termite krotovinas; discontinuous - phpvsfiid 202647; discontinuous - phpvsfiid 202647
    Btk1—86 to 108 centimeters (33.9 to 42.5 inches); 70 percent yellowish brown (10YR 5/4) and 30 percent light yellowish brown (10YR 6/4), 70 percent brown (10YR 5/3), moist; sandy clay loam; 5 percent strong brown (7.5YR 5/8) fine and medium distinct mottles; weak coarse prismatic parts to moderate medium and coarse subangular blocky structure; hard when dry; 2.0 very fine roots between peds; 3.0 fine discontinuous tubular pores; 60 percent prominent light gray (10YR 7/2) clay films on faces of peds and in pores; fragments; slightly alkaline, pH 7.5, hellige-truog; gradual smooth boundary. Lab sample # 99P00645. Concentrations: CAM, 4, T, (location)-MAT; discontinuous - phpvsfiid 202649; discontinuous - phpvsfiid 202649
    Btk2—108 to 143 centimeters (42.5 to 56.3 inches); yellowish red (5YR 5/6), yellowish red (5YR 4/6), moist; sandy clay loam; 2 percent pinkish gray (7.5YR 6/2) medium prominent mottles; weak coarse prismatic parts to moderate medium and coarse angular blocky structure; hard when dry; 2.0 very fine and fine roots throughout; 2.0 fine discontinuous tubular pores; 90 percent prominent brown (7.5YR 4/4) clay films on faces of peds and in pores; 3 percent threadlike carbonate masses; fragments; slightly alkaline, pH 7.7, hellige-truog; gradual wavy boundary. Lab sample # 99P00646. Clay films open to be dominate color but the matrix color is actually the dominate color. Carbonates are coatings; continuous - phpvsfiid 202650; continuous - phpvsfiid 202650
    Bt4—143 to 195 centimeters (56.3 to 76.8 inches); yellowish red (5YR 5/8), yellowish red (5YR 5/6), moist; sandy clay loam; 2 percent pinkish gray (7.5YR 6/2) medium prominent mottles; weak medium and coarse angular blocky structure; very hard; 2.0 very fine and fine roots throughout; 2.0 fine discontinuous tubular pores; 90 percent prominent brown (7.5YR 4/4) clay films on faces of peds and in pores; 2 percent medium irregular black (10YR 2/1) iron-manganese concretions; 1 percent coarse irregular gypsum crystal clusters throughout; fragments; slightly alkaline, pH 7.7, hellige-truog; clear smooth boundary. Lab sample # 99P00647. continuous - phpvsfiid 202651; continuous - phpvsfiid 202651
    Bt5—195 to 200 centimeters (76.8 to 78.7 inches); brown (7.5YR 5/4), brown (7.5YR 4/4), moist; sandy clay loam; weak medium and coarse angular blocky structure; very hard; 1.0 very fine roots throughout; 1.0 fine discontinuous tubular pores; 2 percent prominent black (10YR 2/1) clay bridges and 75 percent prominent clay films on faces of peds and in pores; 2 percent medium iron-manganese concretions; 1 percent medium and coarse irregular gypsum crystal clusters throughout; fragments; neutral, pH 7.3, hellige-truog. Lab sample # 99P00648. continuous - phpvsfiid 202652; continuous - phpvsfiid 202652