IDENTIFIERS

  • Current Taxon Name (Soil Name): Tarrant
  • OSD
  • Series Extent
  • User Site ID: S1964TX327001
  • User Pedon ID: S1964TX327001
  • Vegetation Plot ID: S1964TX327001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - KSSL
  • Lab Pedon # - 40A4526
  • NCSS Pedon Lab Data NASIS Record ID - 40678
  • Print Date: 12/11/2024

    • 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: 30.8747215
  • Std. Longitude: -99.7655563
  • Datum: WGS84
  • Location Description: Menard County, Texas; from the intersection of US Highway 83 and Ranch Road 2291 in Menard, 2.5 miles south on US Highway 83, which is 0.4 miles south of the intersection of US Highway 83 and TX Highway 29, and 500 feet west of US Highway 83 in native pasture.
  • Country: US—United States
  • State: Texas
  • County: TX327—Menard
  • MLRA: 81B—Edwards Plateau, Central Part
  • Non-MLRA Soil Survey Area: TX327—Menard County, Texas
  • 7.5 Minute USGS Quad: 30099-G7—Spoon Draw, Texas

    • PEDON

  • Describers Name: G. S. McKee and Otto Bynum
  • Current Taxonomic Class: Clayey-skeletal, smectitic, thermic Lithic Calciustolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Tarrant
  • PSC - 0 to 33 cm.
  • Classificaton Date - 4/9/2014
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - ustic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Tarrant
  • Taxon Kind - series
  • Classificaton Date - 10/6/1964
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • QA Status: level 1


    • SITE

  • Parent Material: clayey residuum weathered from limestone
  • Landscape: dissected plateau
  • Landform: ridge
  • Runoff: high
  • Drainage Class: well
  • Bedrock: indurated limestone, unspecified at 33cm with 100 to <200
  • Geology: Edwards formation.
  • Surface Fragments: 5.00 percent 250- to 600-millimeter limestone, unspecified, 20.00 percent 75- to 250-millimeter limestone, unspecified,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/6/1964 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, shrubby
  • 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

    ARIST

    ARIST

    ECHIN2

    MATR3

    OPUNT

    OPUNT

    YUCCA

    YUCCA

    Aristida

    Aristida

    Echinocactus

    Mahonia trifoliolata

    Opuntia

    Opuntia

    Yucca

    Yucca

    threeawn

    threeawn

    echinocactus

    algerita

    pricklypear

    pricklypear

    yucca

    yucca

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

    bedrock, lithic

    indurated

    33 - 41

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

    mollic epipedon

    calcic horizon

    lithic contact

    0—33

    18—33

    33—41

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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

    3

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    645

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    160

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    A—0 to 18 centimeters (0.0 to 7.1 inches); very dark grayish brown (10YR 3/2), very dark brown (10YR 2/2), moist; cobbly silty clay; strong very fine subangular blocky, and strong medium granular structure; hard, firm, moderately sticky, moderately plastic; 10.0 very fine to medium roots and 0.5 coarse roots; common fine pores; 50 percent carbonate coats on rock fragments; ; 3 percent by volume nonflat subrounded indurated 250-?-600 millimeter limestone, unspecified fragments and 10 percent by volume nonflat angular indurated 2-?-75 millimeter limestone, unspecified fragments and 22 percent by volume nonflat subangular indurated 75-?-250 millimeter limestone, unspecified fragments; strong effervescence; moderately alkaline, pH 8.2, unspecified; clear irregular boundary. Lab sample # 40A34579
    Ak—18 to 33 centimeters (7.1 to 13.0 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; extremely cobbly clay; strong very fine angular blocky, and strong medium granular structure; hard, firm, moderately sticky, moderately plastic; 8.0 very fine to medium roots and 0.5 coarse roots; 25 percent faint carbonate coats on tops of rock fragments and 80 percent distinct carbonate coats on bottom of rock fragments; ; , 50 percent by weight 75-?-250 millimeter limestone, unspecified fragments and , 10 percent by weight 250-?-600 millimeter limestone, unspecified fragments and , 25 percent by weight 2-?-75 millimeter limestone, unspecified fragments; violent effervescence; moderately alkaline, pH 8.2, unspecified; abrupt wavy boundary. Lab sample # 40A34580
    R—33 to 41 centimeters (13.0 to 16.1 inches); bedrock; extremely high excavation difficulty; fragments.