IDENTIFIERS

  • Current Taxon Name (Soil Name): Quadria
  • OSD
  • Series Extent
  • User Site ID: S1995TX043023A
  • User Pedon ID: 95TX043023A
  • Vegetation Plot ID: S1995TX043023A
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 97P0059
  • NCSS Pedon Lab Data NASIS Record ID - 68534
  • Print Date: 11/25/2024

    • 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: 29.7505550
  • Std. Longitude: -103.7216644
  • Datum: WGS84
  • Location Description: Brewster County, Texas; from the junction of the US Highway 90 and Texas Highway 118 in Alpine; 41.1 mile south on Texas Highway 118 to gate, 4.25 miles west on ranch road, 0.8 mile south, 3.5 miles west on ranch road, 2.9 miles south on ranch road across Terlingua Creek, 1.3 miles southwest, and 100 feet north of road in rangeland. Long Hills USGS 7.5 minute quadrangle.
  • Map Unit: QBE—Quadria, Beewon and Musgrave soils, 0 to 30 percent slopes
  • Country: US—United States
  • State: Texas
  • County: TX043—Brewster
  • MLRA: 42—Southern Desertic Basins, Plains, and Mountains
  • Regional Office: 8—Phoenix, AZ
  • Non-MLRA Soil Survey Area: TX622—Brewster County, Texas (Main Part)
  • 7.5 Minute USGS Quad: 29103-F6—Long Hills, Texas

    • PEDON

  • Describers Name: Lynn E. Loomis, Jerry L. Rives, and Alan C. Terrell
  • Current Taxonomic Class: Fine, mixed, superactive, thermic Ustic Natrargids
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 23
  • Correlated Information:
  • Soil Name - Quadria
  • PSC - 13 to 63 cm.
  • Classificaton Date - 2/1/2010
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - ustic
  • Moisture Subclass - ustic
  • Sampled As Information:
  • Soil Name - Quadria
  • Classificaton Date - 3/3/1995
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/3/1995 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    BOER4

    BOGR2

    BOGR2

    FLCE

    MUPU2

    MUPU2

    PLMU3

    PLMU3

    PROSO

    SEVU2

    Bouteloua eriopoda

    Bouteloua gracilis

    Bouteloua gracilis

    Flourensia cernua

    Muhlenbergia pungens

    Muhlenbergia pungens

    Pleuraphis mutica

    Pleuraphis mutica

    Prosopis

    Setaria vulpiseta

    black grama

    blue grama

    blue grama

    American tarwort

    sandhill muhly

    sandhill muhly

    tobosagrass

    tobosagrass

    mesquite

    plains bristlegrass

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    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    abrupt textural change

    natric

    —

    —

    13 -

    13 - 117

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

    ochric epipedon

    natric horizon

    argillic horizon

    calcic horizon

    0—13

    13—117

    13—117

    43—145

    —-

    —-

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    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

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    —

    —

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    305

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    18.9

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    A—0 to 13 centimeters (0.0 to 5.1 inches); brown (7.5YR 5/3), dark brown (7.5YR 3/3), moist; loam; moderate fine and medium subangular blocky structure; slightly hard, friable; 3.0 very fine roots and 3.0 medium roots and 3.0 fine roots and 3.0 coarse roots; 3.0 very fine and fine tubular pores; 5 percent by volume subangular 2-39-75 millimeter unspecified fragments; slight effervescence, by hcl, 1n; abrupt smooth boundary.; observed in trench. 1 percent calcium carbonate equivalent; 1.3 ds/m electrical conductivity; slightly alkaline; 2 to 6 inches thick. The A horizon has color with hues of 5YR to 10YR, value of 5 or 6, and chroma of 3 or 4. Texture of the fine earth is loam, silty clay loam, or clay loam with a clay content in the particle-size control section ranges from 35 to 55 percent, and ignimbrite rock fragments range from 0 to 15 percent by volume.
    Btn1—13 to 28 centimeters (5.1 to 11.0 inches); reddish brown (5YR 5/3), reddish brown (5YR 4/3), moist; clay; moderate coarse prismatic parts to moderate medium and coarse subangular blocky parts to moderate fine and medium subangular blocky structure; very hard, very firm; 3.0 very fine roots and 3.0 medium roots and 3.0 fine roots and 3.0 coarse roots; 3.0 very fine tubular and 3.0 medium tubular and 3.0 fine tubular and 3.0 coarse tubular pores; 75 percent distinct reddish brown (5YR 5/3) clay films on faces of peds; fragments; strong effervescence, by hcl, 1n; clear smooth boundary. Lab sample # 97P00366; observed in trench. 10 percent calcium carbonate equivalent; 1.0 ds/m electrical conductivity; moderately alkaline; 5 to 10 inches thick. The Bt horizon has color with hues of 5YR or 7.5YR, value of 3 to 5, and chroma of 3 to 6. Texture of the fine earth is clay with a silicate clay content of 35 to 55 percent. Ignimbrite rock fragments range from 0 to 20 percent by volume. Calcium carbonate equivalent is less than 15 percent. Salinity is less than 2 ds/m. Gypsum crystals are present in some pedons in the lower part.; continuous - phpvsfiid 182857; continuous - phpvsfiid 182857
    Btn2—28 to 43 centimeters (11.0 to 16.9 inches); reddish brown (5YR 5/3), reddish brown (5YR 4/3), moist; clay; moderate coarse prismatic parts to moderate medium and coarse subangular blocky parts to moderate fine and medium subangular blocky structure; very hard, very firm; 3.0 very fine roots and 3.0 medium roots and 3.0 fine roots and 3.0 coarse roots; 3.0 very fine and fine tubular pores; 75 percent distinct reddish brown (5YR 5/3) clay films on faces of peds; 2 percent by volume subangular 2-39-75 millimeter unspecified fragments; violent effervescence, by hcl, 1n; clear smooth boundary.; observed in trench. 14 percent calcium carbonate equivalent; 1.4 ds/m electrical conductivity; moderately alkaline; 0 to 11 inches thick. Elevation ranges from 3000 to 4500 feet. The Bt horizon has color with hues of 5YR to 10YR, value of 5 or 6, and chroma of 3 or 4. Texture of the fine earth is loam, silty clay loam, or clay loam with a clay content of 25 to 35 percent. Ignimbrite rock fragments range from 0 to 20 percent by volume. 2 percent subangular ignimbrite gravel.; discontinuous - phpvsfiid 182858; discontinuous - phpvsfiid 182858
    Btkn1—43 to 61 centimeters (16.9 to 24.0 inches); light reddish brown (5YR 6/4), reddish brown (5YR 5/4), moist; gravelly clay; weak medium and coarse subangular blocky parts to weak fine and medium subangular blocky structure; very hard, very firm; 3.0 very fine and fine roots; 0.5 very fine and fine tubular pores; 1 percent distinct white (10YR 8/1) carbonate coats on faces of peds and 30 percent distinct white (10YR 8/1) carbonate coats on rock fragments; fragments; violent effervescence, by hcl, 1n; clear smooth boundary. Lab sample # 97P00367; observed in trench. 20 percent rounded ignimbrite gravel; 24 percent calcium carbonate equivalent; 4.0 ds/m electrical conductivity; moderately alkaline; 6 to 10 inches thick. The Btk horizon has color with hues of 5YR or 7.5YR, value of 4 to 7, and chroma of 4 to 6. Texture of the fine earth is sandy clay loam, clay loam, or clay with a silicate clay content of 20 to 40 percent. Ignimbrite rock fragments range from 0 to 30 percent by volume. Calcium carbonate equivalent ranges from 15 to 30 percent. Electrical conductivity ranges from 4 to 12 ds/m. Gypsum crystals are present in some pedons.; discontinuous - phpvsfiid 194849; discontinuous - phpvsfiid 194850; discontinuous - phpvsfiid 194849; discontinuous - phpvsfiid 194850
    Btkn2—61 to 79 centimeters (24.0 to 31.1 inches); light reddish brown (5YR 6/4), reddish brown (5YR 5/4), moist; very gravelly clay loam; weak medium and coarse subangular blocky parts to weak fine and medium subangular blocky structure; hard, firm; 3.0 very fine and fine roots; 0.5 very fine and fine tubular pores; 1 percent distinct white (10YR 8/1) carbonate coats on faces of peds and 10 percent distinct white (10YR 8/1) carbonate coats on lower surfaces of peds or rocks; 3 percent medium and coarse irregular noncoherent cemented white (10YR 8/1) carbonate masses; fragments; violent effervescence, by hcl, 1n; gradual smooth boundary.; observed in trench. 30 percent rounded ignimbrite gravel and 10 percent subrounded ignimbrite cobbles; 30 percent calcium carbonate equivalent; 10.1 ds/m electrical conductivity; moderately alkaline; 0 to 14 inches thick. The Btk horizon has color with hue of 5YR or 7.5YR, value of 4 to 7, and chroma of 4 to 6. Texture of the fine earth is sandy clay loam, clay loam, or clay with a silicate clay content of 20 to 40 percent. Ignimbrite rock fragments range from 0 to 30 percent by volume. Calcium carbonate equivalent ranges from 15 to 30 percent. Electrical conductivity ranges from 4 to 12 ds/m. Gypsum crystals are present in some pedons.; discontinuous - phpvsfiid 194851; discontinuous - phpvsfiid 194852; discontinuous - phpvsfiid 194851; discontinuous - phpvsfiid 194852
    Btkn3—79 to 117 centimeters (31.1 to 46.1 inches); light reddish brown (5YR 6/4), reddish brown (5YR 5/4), moist; very gravelly sandy clay loam; weak medium and coarse subangular blocky parts to weak fine and medium subangular blocky structure; slightly hard, firm; 0.5 very fine and fine roots; 0.5 very fine and fine tubular pores; 1 percent distinct white (10YR 8/1) carbonate coats on faces of peds and 10 percent distinct white (10YR 8/1) carbonate coats on rock fragments; 3 percent medium and coarse irregular noncoherent cemented white (10YR 8/1) carbonate masses; fragments; noneffervescent, by hcl, 1n; clear smooth boundary.; observed in trench. 30 percent rounded ignimbrite gravel and 5 percent subrounded ignimbrite cobbles; 16 percent calcium carbonate equivalent; 12.0 ds/m electrical conductivity; moderately alkaline; 0 to 15 inches thick. The Btk horizon has color with hue of 5YR or 7.5YR, value of 4 to 7, and chroma of 4 to 6. Texture of the fine earth is sandy clay loam, clay loam, or clay with a silicate clay content of 20 to 40 percent. Ignibrite rock fragments range from 15 to 30 percent by volume. Calcium carbonate equivalent ranges from 15 to 30 percent. Electrical conductivity ranges from 4 to 12 ds/m. Gypsum crystals are present in some pedons.; discontinuous - phpvsfiid 194853; discontinuous - phpvsfiid 194854; discontinuous - phpvsfiid 194853; discontinuous - phpvsfiid 194854
    Bkn—117 to 145 centimeters (46.1 to 57.1 inches); light reddish brown (5YR 6/3), reddish brown (5YR 5/3), moist; fine sandy loam; weak fine and medium subangular blocky structure; slightly hard, friable; 0.5 very fine and fine roots throughout; 0.5 very fine and fine tubular pores; 3 percent medium and coarse irregular noncoherent cemented white (10YR 8/1) carbonate masses; fragments; noneffervescent, by hcl, 1n; clear smooth boundary.; observed in trench. 5 percent rounded ignimbrite gravel; 9 percent calcium carbonate equivalent; 10.6 ds/m electrical conductivity; moderately alkaline; 0 to 11 inches thick. The Bk or BCk horizon, where present, has color with hue of 5YR or 7.5YR, value of 5 or 6, and chroma of 3 or 4. These horizons are beneath lithological discontinuities located more than 40 inches below the soil surface. Texture of the fine earth fraction is coarse sandy loam, sandy loam, or fine sandy loam. Ignimbrite rock fragments range from 5 to 30 percent by volume. Calcium carbonate equivalent is less than 10 percent. Electrical conductivity ranges from 6 to 12 ds/m.
    BCk—145 to 203 centimeters (57.1 to 79.9 inches); reddish brown (5YR 5/3), reddish brown (5YR 4/3), moist; coarse gravelly sandy loam; weak fine and medium subangular blocky structure; soft, friable; 0.5 very fine and fine roots; 0.5 very fine and fine tubular pores; 1 percent distinct white (10YR 8/1) carbonate coats on faces of peds and 10 percent distinct white (10YR 8/1) carbonate coats on rock fragments; 3 percent coarse irregular noncoherent cemented white (10YR 8/1) carbonate masses and 1 percent medium irregular noncoherent cemented white (10YR 8/1) carbonate masses; fragments; noneffervescent, by hcl, 1n.; observed in trench. Alternating strata of coarse sand and very gravelly coarse sand 6 inches thick; 20 percent rounded ignimbrite gravel and 10 percent subrounded ignimbrite cobbles; 1 percent calcium carbonate equivalent; 7.4 ds/m electrical conductivity; slightly alkaline. The Bk or BCk horizon, where present, has color with hue of 5YR or 7.5YR, value of 5 or 6, and chroma of 3 or 4. These horizons are beneath lithlogic discontinuities located more than 40 inches below the soil surface. Texture of the fine earth fraction is coarse sandy loam, sandy loam, or fine sandy loam. Ignimbrite rock fragments range from 5 to 30% by volume. Calcium carbonate equivalent is less that 10%. Electrical cond. ranges 6-12 ds/m; discontinuous - phpvsfiid 194855; discontinuous - phpvsfiid 194856; discontinuous - phpvsfiid 194855; discontinuous - phpvsfiid 194856