IDENTIFIERS

  • Current Taxon Name (Soil Name): Nolam
  • OSD
  • Series Extent
  • User Site ID: S1995TX043015A
  • User Pedon ID: 95TX043015A
  • Vegetation Plot ID: S1995TX043015A
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 97P0054
  • NCSS Pedon Lab Data NASIS Record ID - 68529
  • Print Date: 2/16/2025

    • 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: 29.8349991
  • Std. Longitude: -103.6816635
  • Datum: WGS84
  • Location Description: Brewster County, Texas, from the junction of US Highway 90 and Texas Highway 118 in Alpine; 32.3 miles south on Texas Highway 118 to 02 Ranch gate, 8.8 miles southwest on 02 Ranch Headquarters road to landing strip, 2.1 miles south along west edge of landing strip to corals, 0.5 miles east southeast on ranch road, 0.55 miles southeast on ranch road, 50 feet west of road in range. Straddlebug Mountain 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-G6—Straddlebug Mountain, Texas

    • PEDON

  • Describers Name: Lynn E. Loomis, Jerry L. Rives, and Alan C. Terrell
  • Current Taxonomic Class: Loamy-skeletal, mixed, superactive, thermic Ustic Calciargids
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 15
  • Correlated Information:
  • Soil Name - Nolam
  • PSC - 13 to 46 cm.
  • Classificaton Date - 6/22/2011
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - aridic (torric)
  • Moisture Subclass - ustic
  • Sampled As Information:
  • Soil Name - Beewon
  • Classificaton Date - 9/1/1995
  • 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: 9/1/1995 (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

    BOBA3

    BOER4

    BOGR2

    BOGR2

    DICA8

    DICA8

    KRER

    MUPU2

    MUPU2

    SEVU2

    TRMU

    Bothriochloa barbinodis

    Bouteloua eriopoda

    Bouteloua gracilis

    Bouteloua gracilis

    Digitaria californica

    Digitaria californica

    Krameria erecta

    Muhlenbergia pungens

    Muhlenbergia pungens

    Setaria vulpiseta

    Tridens muticus

    cane bluestem

    black grama

    blue grama

    blue grama

    Arizona cottontop

    Arizona cottontop

    littleleaf ratany

    sandhill muhly

    sandhill muhly

    plains bristlegrass

    slim tridens

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

    ochric epipedon

    argillic horizon

    calcic horizon

    0—13

    13—46

    30—175

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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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    A—0 to 13 centimeters (0.0 to 5.1 inches); brown (7.5YR 5/3), brown (7.5YR 4/3), moist; gravelly loam; weak medium and coarse subangular blocky parts to weak fine and medium subangular blocky parts to weak thin platy structure; 3.0 very fine and fine roots; 22 percent by volume subangular 2-39-75 millimeter unspecified fragments; violent effervescence, by hcl, 1n; neutral, pH 7.0, hellige-truog; clear smooth boundary.; observed in trench. The A horizon has hues of 7.5YR or 10YR, value of 5 or 6, and chroma of 2 to 4. Texture of the fine earth fraction is loam, sandy clay loam, or clay loam. Silicate clay content ranges from 20 to 35 percent. Rock fragments range from 15 to 50 percent by volume. Calcium carbonate equivalent ranges from 3 to 10 percent. 7.0 percent calcium carbonate equivalent; 1.1 ds/m electrical conductivity. Slightly alkaline. Weak platy structure in upper 1 inch.
    Bt—13 to 30 centimeters (5.1 to 11.8 inches); reddish brown (5YR 5/3), reddish brown (5YR 4/3), moist; extremely gravelly clay loam; weak fine and medium subangular blocky structure; 3.0 very fine and fine roots; 10 percent prominent white (10YR 8/1) carbonate coats on rock fragments and 30 percent distinct clay films on rock fragments; 10 percent by volume subrounded 75-162-250 millimeter unspecified fragments and 64 percent by volume subrounded 2-39-75 millimeter unspecified fragments; strong effervescence, by hcl, 1n; neutral, pH 7.0, hellige-truog; clear smooth boundary.; observed in trench. The Bt horizon has hues of 5YR or 7.5YR, value of 4 to 6, and chroma of 3 or 4. Texture of the fine earth fraction is clay loam or clay with a silicate clay content of 35 to 45 percent. Rock fragments range from 40 to 75 percent by volume. Calcium carbonate equivalent range from 5 to 14 percent. 7 percent calcium carbonate equivalent; 0.9 ds/m electrical conductivity; slightly alkaline.; discontinuous - phpvsfiid 557481; continuous - phpvsfiid 557480; discontinuous - phpvsfiid 557481; continuous - phpvsfiid 557480
    Btk—30 to 46 centimeters (11.8 to 18.1 inches); reddish brown (5YR 5/4), reddish brown (5YR 4/4), moist; very gravelly clay; weak fine and medium subangular blocky structure; 3.0 very fine and fine roots; 30 percent distinct white (10YR 8/1) carbonate coats on rock fragments; 3 percent threadlike and 3 percent medium lime masses; 10 percent by volume subrounded 75-162-250 millimeter unspecified fragments and 34 percent by volume subrounded 2-39-75 millimeter unspecified fragments; violent effervescence, by hcl, 1n; abrupt smooth boundary. Lab sample # 97P00359; observed in trench. The Btk horizon has hues of 5YR or 7.5YR, value of 3 to 6, and chroma of 3 to 6. Texture of the fine earth fraction is loam, sandy clay loam, silty clay loam, clay loam, or clay. Silicate clay content ranges from 20 to 45 percent. Rock fragments range from 35 to 65 percent by volume. Calcium carbonate equivalent ranges from 15 to 25 percent. 24.0 percent calcium carbonate equivalent; 7.6 ds/m electrical conductivity; moderately alkaline.; continuous - phpvsfiid 557482; continuous - phpvsfiid 557482
    Bk1—46 to 81 centimeters (18.1 to 31.9 inches); pink (5YR 7/3), light reddish brown (5YR 6/3), moist; very gravelly silt loam; weak fine and medium subangular blocky parts to weak fine subangular blocky structure; 0.5 very fine roots; 75 percent prominent white (10YR 8/1) carbonate coats on rock fragments; 21 percent medium spherical white (10YR 8/1) lime masses; tuff, unspecified fragments and 5 percent by volume subrounded 250-425-600 millimeter unspecified fragments and 18 percent by volume subrounded 75-162-250 millimeter unspecified fragments and 40 percent by volume subrounded 2-39-75 millimeter unspecified fragments; violent effervescence, by hcl, 1n; clear wavy boundary. Lab sample # 97P00360; observed in trench. The Bk horizons have colors with hue of 5YR to 10YR, value of 6 to 8, and chroma of 2 or 3. Texture of the fine earth fraction is silt loam, silty clay loam, clay loam, or clay with a silicate clay content of 15 to 35 percent. Rock fragments range from 40 to 85 percent by volume. Calcium carbonate equivalent ranges from 30 to 60 percent. 60 percent calcium carbonate equivalent; 3.7 ds/m electrical conductivity; moderately alkaline.; continuous - phpvsfiid 557479; continuous - phpvsfiid 557479
    Bk2—81 to 102 centimeters (31.9 to 40.2 inches); pinkish white (5YR 8/2), pink (5YR 7/3), moist; extremely gravelly silt loam; weak medium and coarse subangular blocky structure; 0.5 very fine roots; 75 percent prominent white (10YR 8/1) carbonate coats on rock fragments; 21 percent medium spherical white (10YR 8/1) lime masses; tuff, unspecified fragments and 2 percent by volume subrounded 250-425-600 millimeter unspecified fragments and 10 percent by volume subrounded 75-162-250 millimeter unspecified fragments and 75 percent by volume subrounded 2-39-75 millimeter unspecified fragments; violent effervescence, by hcl, 1n; clear smooth boundary.; observed in trench. Calcium carbonate equivalent ranges from 10 to 35 percent. 60 percent calcium carbonate equivalent; 2.4 ds/m electrical conductivity; moderately alkaline.; continuous - phpvsfiid 557483; continuous - phpvsfiid 557483
    Bk3—102 to 122 centimeters (40.2 to 48.0 inches); pinkish white (5YR 8/2), light reddish brown (5YR 6/3), moist; extremely cobbly silt loam; weak medium and coarse subangular blocky structure; 0.5 very fine roots; 75 percent prominent carbonate coats on rock fragments; 21 percent medium spherical white (10YR 8/1) lime masses; tuff, unspecified fragments and 5 percent by volume subrounded 250-425-600 millimeter unspecified fragments and 20 percent by volume subrounded 2-39-75 millimeter unspecified fragments and 80 percent by volume subrounded 75-162-250 millimeter unspecified fragments; violent effervescence, by hcl, 1n; abrupt smooth boundary.; observed in trench. 60 percent calcium carbonate equivalent; 2.0 ds/m electrical conductivity; moderately alkaline.; continuous - phpvsfiid 557484; continuous - phpvsfiid 557484
    2Bk1—122 to 175 centimeters (48.0 to 68.9 inches); pinkish gray (5YR 6/2), reddish brown (5YR 5/3), moist; extremely gravelly loam; weak medium and coarse subangular blocky parts to weak fine subangular blocky structure; 0.5 very fine roots; 30 percent distinct white (10YR 8/1) carbonate coats on rock fragments and 75 percent distinct clay films on rock fragments and 75 percent distinct clay films on faces of peds; 3 percent medium and coarse spherical white (10YR 8/1) lime masses; tuff, unspecified fragments and 10 percent by volume subrounded 75-162-250 millimeter unspecified fragments and 60 percent by volume subrounded 2-39-75 millimeter unspecified fragments; noneffervescent, by hcl, 1n; gradual smooth boundary.; observed in trench. The 2Bk horizons, where present, have colors with hues of 5YR or 7.5YR, value of 5 to 7, and chroma of 2 to 4. Texture of the fine earth fraction is sandy loam, loam, or clay loam with a silicate clay content of 15 to 30 percent. Rock fragments range from 35 to 70 percent by volume. Calcium carbonate equivalent ranges from 10 to 35 percent. Soil matrix is noneffervescent between lime masses.; continuous - phpvsfiid 557485; continuous - phpvsfiid 557486; continuous - phpvsfiid 557487; continuous - phpvsfiid 557485; continuous - phpvsfiid 557486; continuous - phpvsfiid 557487
    2Bk2—175 to 203 centimeters (68.9 to 79.9 inches); pinkish gray (5YR 6/2), reddish brown (5YR 4/3), moist; very gravelly sandy loam; weak medium and coarse subangular blocky structure; 0.5 very fine roots; 30 percent distinct white (10YR 8/1) carbonate coats on rock fragments and 75 percent distinct clay films on rock fragments and 75 percent distinct clay films on faces of peds; 3 percent medium and coarse spherical white (10YR 8/1) lime masses; tuff, unspecified fragments and 10 percent by volume subrounded 75-162-250 millimeter unspecified fragments and 40 percent by volume subrounded 2-39-75 millimeter unspecified fragments; noneffervescent, by hcl, 1n; very strongly alkaline, pH 11.0, hellige-truog.; observed in trench. 11 percent calcium carbonate; 1.1 ds/m electrical conductivity; soil matrix is noneffervescent between lime masses; slightly alkaline.; continuous - phpvsfiid 557488; continuous - phpvsfiid 557489; continuous - phpvsfiid 557490; continuous - phpvsfiid 557488; continuous - phpvsfiid 557489; continuous - phpvsfiid 557490