IDENTIFIERS

  • Current Taxon Name (Soil Name): Edge
  • OSD
  • Series Extent
  • User Site ID: S86TX331001
  • User Pedon ID: S86TX331001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - TAMU
  • Lab Pedon # - S86TX331001
  • NCSS Pedon Lab Data NASIS Record ID - 82693
  • Print Date: 11/24/2024

    • 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: 30.7433784
  • Std. Longitude: -96.8880702
  • Datum: WGS84
  • Location Description: The typical pedon for the Edge series; from the intersection of U. S. Highway 79 and Texas Highway 36 in Milano; 2.5 miles west on Highway 36 to county road; 1.0 miles northeast on county road; 75 ft east of road in an old field being used for rangeland. Latitude 30 degrees, 44 minutes, 36 seconds N, Longitude 96 degrees 53 minutes 17 seconds W.
  • State: Texas
  • County: TX331—Milam
  • MLRA: 87A—Texas Claypan Area, Southern Part
  • Non-MLRA Soil Survey Area: TX331—Milam County, Texas
  • 7.5 Minute USGS Quad: 30096-F8—Rockdale East, Texas

    • PEDON

  • Describers Name: Brockman, Ramsey, Williams, Lane, Hallmark
  • Current Taxonomic Class: Fine, mixed, active, thermic Udic Paleustalfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Edge
  • PSC - 28 to 78 cm.
  • Classificaton Date - 2/12/2013
  • Classifier - Chance M. Robinson
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - ustic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Edge
  • Taxonomic Class - Fine, mixed, active, thermic Udic Paleustalfs
  • Taxon Kind - series
  • Classificaton Date - 1/1/2004
  • Classifier - Chance M. Robinson
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - ustic
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • QA Status: level 3


    • SITE

  • Parent Material: clayey residuum weathered from sandstone and siltstone
  • Landscape: inland dissected coastal plain
  • Landform: broad ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: weakly coherent siltstone, unspecified at 191cm with <10
  • Geology: Calvert Bluff Formation formation of the Wilcox Group group.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/27/1986 (actual site observation date)
  • Data Collector: Brockman, Ramsey, Williams, Lane, Hallmark
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - pastureland, tame
  • 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

    abrupt textural change

    noncoherent

    28 - 28

    0 - 1 - 2
    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    albic horizon

    albic materials

    argillic horizon

    abrupt textural change

    redox concentrations

    redox depletions with chroma 2 or less

    redox concentrations

    0—28

    20—28

    20—28

    28—147

    28—28

    48—109

    109—122

    122—191

    —28—

    —8—

    —8—

    —119—

    —-

    —61—

    —13—

    —69—
    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

    1.5

    —

    —

    132

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 20 centimeters (0.0 to 7.9 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; fine sandy loam; weak fine subangular blocky structure; hard, friable; common (3.0) medium roots and common (3.0) fine roots; few (0.5) medium and few (0.5) fine pores; 1 percent by volume 2-?-76 millimeter ironstone nodules fragments; moderately acid, pH 5.8, unspecified; clear smooth boundary. Lab sample # TAMU2657
    E—20 to 28 centimeters (7.9 to 11.0 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; fine sandy loam; weak medium subangular blocky structure; hard, friable; common (3.0) medium roots and common (3.0) fine roots; few (0.5) medium and few (0.5) fine pores; 1 percent by volume 2-?-76 millimeter ironstone nodules fragments; slightly acid, pH 6.3, unspecified; abrupt smooth boundary. Lab sample # TAMU2658
    Bt1—28 to 48 centimeters (11.0 to 18.9 inches); red (2.5YR 4/6), dark red (2.5YR 3/6), moist; clay; moderate medium angular blocky parts to moderate fine angular blocky structure; extremely hard, firm; few (0.5) very fine roots and few (0.5) fine roots; few (0.5) fine pores; 25 percent distinct clay films on all faces of peds; 1 percent fine distinct pale brown (10YR 6/3), moist, iron depletions; fragments; very strongly acid, pH 4.7, unspecified; gradual smooth boundary. Lab sample # TAMU2659
    Bt2—48 to 74 centimeters (18.9 to 29.1 inches); red (2.5YR 5/6), red (2.5YR 4/6), moist; clay; weak medium prismatic parts to moderate fine angular blocky, and weak coarse prismatic parts to moderate fine angular blocky structure; extremely hard, firm; few (0.5) very fine roots and few (0.5) fine roots; few (0.5) fine pores; 25 percent distinct clay films on all faces of peds; 1 percent fine distinct yellowish brown (10YR 5/4), moist, iron-manganese masses and 10 percent medium distinct pale brown (10YR 6/3), moist, iron depletions; fragments; very strongly acid, pH 4.7, unspecified; gradual smooth boundary. Lab sample # TAMU2660
    Bt3—74 to 94 centimeters (29.1 to 37.0 inches); red (2.5YR 5/6), red (2.5YR 4/6), moist; clay loam; weak medium prismatic parts to moderate fine angular blocky, and weak coarse prismatic parts to moderate fine angular blocky structure; very hard, firm; few (0.5) very fine roots and few (0.5) fine roots; few (0.5) fine pores; 5 percent very dark gray (10YR 3/1), moist, organic stains on surfaces along root channels and 25 percent distinct reddish brown (5YR 5/4), moist, clay films on all faces of peds; 10 percent fine distinct light yellowish brown (10YR 6/4), moist, masses of oxidized iron and 10 percent fine distinct brown (10YR 5/3), moist, iron depletions; fragments; very strongly acid, pH 4.7, unspecified; gradual smooth boundary. Lab sample # TAMU2661
    Bt4—94 to 109 centimeters (37.0 to 42.9 inches); yellowish red (5YR 5/6), yellowish red (5YR 4/6), moist; clay loam; weak medium prismatic parts to moderate fine angular blocky structure; very hard, firm; few (0.5) very fine roots and few (0.5) fine roots; few (0.5) medium pores; 5 percent very dark gray (10YR 3/1), moist, organic stains on surfaces along root channels and 25 percent distinct brown (7.5YR 4/4), moist, clay films on vertical faces of peds; 1 percent fine distinct yellowish brown (10YR 5/4), moist, iron-manganese masses; fragments; slightly acid, pH 6.3, unspecified; gradual smooth boundary. Lab sample # TAMU2662
    BCt—109 to 122 centimeters (42.9 to 48.0 inches);, reddish yellow (5YR 6/6), moist; sandy clay loam; weak very coarse prismatic parts to weak coarse subangular blocky structure; very hard, firm; few (0.5) very fine roots and few (0.5) fine roots; 25 percent distinct brown (7.5YR 4/4), moist, clay films on vertical faces of peds; 1 percent fine distinct light brownish gray (10YR 6/2), moist, iron depletions and 1 percent fine distinct light brownish gray (10YR 6/2), moist, iron depletions along lamina or strata surfaces; fragments; neutral, pH 7.0, unspecified; gradual smooth boundary. Lab sample # TAMU2663
    C/Bt—122 to 147 centimeters (48.0 to 57.9 inches);, strong brown (7.5YR 5/6), moist; loam; weak very coarse prismatic structure; very hard, friable; few (0.5) very fine roots; 5 percent distinct brown (7.5YR 5/4), moist, clay films on vertical faces of peds; 1 percent medium distinct red (2.5YR 5/6), moist, masses of oxidized iron; 1 percent medium barite masses; fragments; slightly alkaline, pH 7.6, unspecified; gradual smooth boundary. Lab sample # TAMU2664
    C/B—147 to 191 centimeters (57.9 to 75.2 inches);, light yellowish brown (10YR 6/4), moist; loam; structureless massive; very hard, friable; few (0.5) very fine roots; 1 percent fine distinct strong brown (7.5YR 5/6), moist, masses of oxidized iron along lamina or strata surfaces; fragments; slightly alkaline, pH 7.6, unspecified; gradual smooth boundary. Lab sample # TAMU2665
    C—191 to 203 centimeters (75.2 to 79.9 inches);, light brownish gray (10YR 6/2), moist; silt loam; structureless massive; very hard, friable; fragments; slightly alkaline, pH 7.6, unspecified. Lab sample # TAMU2666