IDENTIFIERS

  • Current Taxon Name (Soil Name): Holguin
  • OSD
  • Series Extent
  • User Site ID: S1995-TX043-030-copy
  • User Pedon ID: S1995-TX043-030-copy
  • Vegetation Plot ID: S1995-TX043-030-copy
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 98P0424
  • Print Date: 11/27/2024

    • 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: 29.9696865
  • Std. Longitude: -103.7562866
  • Datum: WGS84
  • Location Description: Brewster County, Texas; from the junction of US Highway 90 and Texas Highway 118 in Alpine; 33.6 miles south on Texas Highway 118 to locked gate, 2.55 miles west on ranch road to Whirlwind Spring Corral, 1.90 miles northwest, 2.75 miles west on ranch road, 2.65 miles west on ranch road, 1.75 miles west on ranch road to windmill, 1.75 miles north-northwest on ranch road to water storage tank, 1.05 miles northwest and west on ranch road, 1,585 feet southeast in rangeland. Paradise Draw USGS 7.5 minute quadrangle.
  • Country: US—United States
  • State: Texas
  • County: TX043—Brewster
  • MLRA: 42—Southern Desertic Basins, Plains, and Mountains
  • MLRA Soil Survey Area: SW-MAF—Marfa, Texas
  • Non-MLRA Soil Survey Area: TX622—Brewster County, Texas (Main Part)
  • 7.5 Minute USGS Quad: 29103-H7—Paradise Draw, Texas

    • PEDON

  • Describers Name: Lynn Loomis and Jerry Rives
  • Current Taxonomic Class: Loamy-skeletal, mixed, superactive, calcareous, thermic Lithic Ustic Torriorthents
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 30
  • Correlated Information:
  • Soil Name - Holguin (flagged as OSD)
  • PSC - 25 to 48 cm.
  • Classificaton Date - 7/15/2016
  • Classifier - Lynn Loomis
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - aridic (torric)
  • Moisture Subclass - ustic
  • Sampled As Information:
  • Soil Name - Holguin-OSD
  • Classificaton Date - 1/1/1995
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1


    • SITE

  • Landscape: dissected plateau
  • Landform: dip slope
  • Drainage Class: well
  • Bedrock: indurated conglomerate, unspecified at 48cm
  • Geology: Duff Formation formation.
  • Surface Fragments: 60.00 percent nonflat rounded indurated 2- to 75-millimeter conglomerate, unspecified, 1.00 percent nonflat rounded indurated 250- to 600-millimeter conglomerate, unspecified, 5.00 percent nonflat rounded indurated 75- to 250-millimeter conglomerate, unspecified,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/27/1996 (actual site observation date)
  • Surface Cover Properties:
  • 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

    ACCOC

    ATCA2

    BOGR2

    KRER

    LATR2

    OPENE

    OPIM

    OPMA8

    PAIN2

    PRGLT

    SEVU2

    SPCO4

    Acacia constricta var. constricta

    Atriplex canescens

    Bouteloua gracilis

    Krameria erecta

    Larrea tridentata

    Opuntia engelmannii var. engelmannii

    Opuntia imbricata

    Opuntia macrocentra

    Parthenium incanum

    Prosopis glandulosa var. torreyana

    Setaria vulpiseta

    Sporobolus contractus

    whitethorn acacia

    fourwing saltbush

    blue grama

    littleleaf ratany

    creosote bush

    cactus apple

    tree cholla

    purple pricklypear

    mariola

    western honey mesquite

    plains bristlegrass

    spike dropseed

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

    bedrock, lithic

    indurated

    48 - 200

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

    ochric epipedon

    lithic contact

    0—23

    48—48

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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

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    305

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    A—0 to 23 centimeters (0.0 to 9.1 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; very gravelly sandy loam; weak fine and medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; high excavation difficulty; 20 percent prominent white (10YR 8/1), dry, carbonate coats on rock fragments; 15 percent by volume nonflat subrounded indurated 2-?-75 millimeter sandstone, calcareous fragments and 30 percent by volume nonflat rounded indurated 2-5-20 millimeter igneous, unspecified fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; abrupt smooth boundary. Lab sample # 98P02461; observed in pit, small
    BCk—23 to 48 centimeters (9.1 to 18.9 inches); brown (7.5YR 5/3), brown (7.5YR 4/4), moist; extremely channery sandy loam; weak fine and medium granular, and subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; very high excavation difficulty; 3.0 fine and medium roots and 0.5 coarse roots; common coarse high-continuity irregular pores; distinct white (10YR 8/1), dry, carbonate coats on rock fragments; 80 percent by volume flat subangular very strongly coherent cemented 2-75-150 millimeter sandstone, unspecified fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; abrupt smooth boundary. Lab sample # 98P02462; observed in pit, small
    R—48 to 200 centimeters (18.9 to 78.7 inches); gray (10YR 6/1), reddish brown (5YR 4/3), moist; bedrock; indurated; extremely high excavation difficulty; 60 percent prominent carbonate coats on bedrock; fine prominent indurated cemented white (10YR 8/1), dry, carbonate laminae with sharp boundaries at top of horizon; fragments; violent effervescence, by hcl, 1n.; observed in pit, small. Unweathered conglomerate bedrock; indurated laminar caliche cap 1 to 3 mm thick; many prominent continuous white (10YR 8/1) calcium carbonate coatings on rock fragments. The R layer has hue of 5YR to 10YR, value of 6 to 8, and chroma of 1 to 3 It is unweathered conglomerate bedrock.