IDENTIFIERS

  • Current Taxon Name (Soil Name): Boracho
  • OSD
  • Series Extent
  • User Site ID: 30103-C6-001
  • User Pedon ID: S1990-TX043-002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - TAMU
  • Lab Pedon # - S90TX043002
  • NCSS Pedon Lab Data NASIS Record ID - 45496
  • Print Date: 11/12/2024

    • 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: 30.3443336
  • Std. Longitude: -103.7071075
  • Datum: WGS84
  • Location Description: From the junction of US Highway 90 and Texas Highway 118 north in Alpine, 3.0 miles west on US Highway 90, 300 feet south in range; at the west end of berm on the Big Bend Sportsman's Club Rifle Range
  • Map Unit: BOB—Boracho-Espy complex, 1 to 8 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: 30103-C6—Alpine South, Texas

    • PEDON

  • Describers Name: Rex Cochran, Jerry Rives, Sharon Elias, and John Jacob
  • Current Taxonomic Class: Loamy-skeletal, mixed, superactive, thermic, shallow Petrocalcic Calciustolls
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Boracho
  • PSC - 0 to 18 cm.
  • Classificaton Date - 8/13/2015
  • Classifier - Chance M. Robinson
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - ustic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Boracho-data
  • Classificaton Date - 3/5/1990
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 3


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/5/1990 (actual site observation date)
  • Air Photo ID: 10
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    petrocalcic

    indurated

    18 - 86

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

    mollic epipedon

    petrocalcic horizon

    0—18

    18—86

    —-

    —-
    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

    —

    —

    —

    1423

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    A—0 to 18 centimeters (0.0 to 7.1 inches); brown (7.5YR 5/2), dark brown (7.5YR 3/2), moist; very gravelly loam; weak fine subangular blocky, and weak medium subangular blocky structure; hard, very friable; 2.0 medium roots and 2.0 fine roots; 1 percent by volume 75-?-250 millimeter petrocalcic fragments fragments and 5 percent by volume nonflat indurated 75-?-250 millimeter igneous, unspecified fragments and 10 percent by volume indurated 2-?-75 millimeter petrocalcic fragments fragments and 40 percent by volume nonflat indurated 2-?-75 millimeter igneous, unspecified fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # TAMU4102; observed in pit, large or quarry
    Bkkm1—18 to 33 centimeters (7.1 to 13.0 inches); very pale brown (10YR 8/2) cemented material; indurated; fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # TAMU4103; observed in pit, large or quarry. few coarse pipes filled with A horizon material
    Bkkm2—33 to 41 centimeters (13.0 to 16.1 inches); very pale brown (10YR 8/2) cemented material; indurated; 8 percent by volume very strongly coherent cemented 2-?-75 millimeter tuff, unspecified fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # TAMU4104; observed in pit, large or quarry. few coarse pipes filled with A horizon material
    Bkkm3—41 to 53 centimeters (16.1 to 20.9 inches); very pale brown (10YR 8/2) cemented material; strongly coherent; 15 percent by volume very strongly coherent cemented 2-?-75 millimeter tuff, unspecified fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # TAMU4105; observed in pit, large or quarry. few coarse pipes filled with A horizon material
    Bkkm4—53 to 74 centimeters (20.9 to 29.1 inches); very pale brown (10YR 8/2) cemented material; strongly coherent; 15 percent by volume very strongly coherent cemented 2-?-75 millimeter tuff, unspecified fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # TAMU4106; observed in pit, large or quarry
    Bkkm5—74 to 86 centimeters (29.1 to 33.9 inches); very pale brown (10YR 8/2) cemented material; strongly coherent; fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # TAMU4107; observed in pit, large or quarry
    BCk1—86 to 124 centimeters (33.9 to 48.8 inches); very pale brown (10YR 8/2) very gravelly coarse sandy loam; fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # TAMU4108; observed in pit, large or quarry
    BCk2—124 to 203 centimeters (48.8 to 79.9 inches); very pale brown (10YR 8/2) very paracobbly coarse sandy loam; 25 percent by volume nonflat subrounded moderately coherent cemented 75-?-250 millimeter tuff, unspecified fragments and 25 percent by volume nonflat subrounded moderately coherent cemented 2-?-75 millimeter tuff, unspecified fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # TAMU4109; observed in pit, large or quarry