IDENTIFIERS

  • Current Taxon Name (Soil Name): Union
  • OSD
  • Series Extent
  • User Site ID: 1997MO131079M
  • User Pedon ID: 1997MO131079
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M9713147
  • 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: 38.0746722
  • Std. Longitude: -92.5400111
  • Datum: WGS84
  • Township: T39N
  • Range: R15W
  • Section: 35
  • PLSS Details: 1950 feet W and 1400 feet S of the NE corner
  • Location Description: Lake of the Ozarks State Park, 1950 ft. W & 1400 ft. S of the NE corner of sec. 26-T39N-R15W.
  • State: Missouri
  • County: MO131—Miller
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO131—Miller County, Missouri
  • 7.5 Minute USGS Quad: 38092-A5—Toronto, Missouri

    • PEDON

  • Describers Name: DWW, DEV, TOK
  • Current Taxonomic Class: Fine, mixed, active, mesic Oxyaquic Fragiudalfs
  • 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 - Union
  • PSC - 30 to 71 cm.
  • Classificaton Date - 11/15/2012
  • Classifier - J.R. Perkins
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Union
  • Taxonomic Class - Fine Oxyaquic Fragiudalfs
  • Taxon Kind - series
  • PSC - 30 to 71 cm.
  • Classificaton Date - 8/26/1997
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified


    • SITE

  • Parent Material: loess over pedisediment over residuum
  • Landscape: hills
  • Landform: interfluve
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: moderately well
  • Geology: Roubidoux Sandstone formation of the Ordovician group.
  • Surface Fragments:
  • Benchmark Soil?: yes

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/26/1997 (actual site observation date)
  • Air Photo ID: 12A
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • 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

    fragipan

    noncoherent

    noncoherent

    30 - 30

    71 - 102

    - 0 -

    - 31 -

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

    ochric epipedon

    albic horizon

    argillic horizon

    abrupt textural change

    fragipan

    redox depletions with chroma 2 or less

    lithologic discontinuity

    lithologic discontinuity

    0—13

    13—30

    30—203

    30—30

    71—102

    71—102

    71—102

    102—203

    —13—

    —17—

    —173—

    —0—

    —31—

    —31—

    —31—

    —101—
    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

    —

    —

    259

    —

    200

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 13 centimeters (0.0 to 5.1 inches); dark grayish brown (10YR 4/2), light brownish gray (10YR 6/2), dry; silt loam; weak fine granular structure; friable; many (6.0) medium roots and many (6.0) fine roots; fragments; moderately acid, pH 5.6, hellige-truog; clear smooth boundary. Lab sample # MU058429
    E—13 to 30 centimeters (5.1 to 11.8 inches); yellowish brown (10YR 5/4) silt; weak fine granular structure; friable; few (0.9) medium roots and common (3.0) fine roots; fragments; strongly acid, pH 5.4, hellige-truog; gradual smooth boundary. Lab sample # MU058430
    Bt1—30 to 56 centimeters (11.8 to 22.0 inches); strong brown (7.5YR 5/6) silty clay loam; moderate fine subangular blocky structure; firm; few (0.9) medium roots and common (3.0) fine roots; 30 percent dark yellowish brown (10YR 4/4), moist, clay films; fragments; strongly acid, pH 5.3, hellige-truog; clear smooth boundary. Lab sample # MU058431
    Bt2—56 to 71 centimeters (22.0 to 28.0 inches); yellowish brown (10YR 5/6) silty clay loam; moderate fine subangular blocky structure; firm; few (0.9) medium roots and few (0.9) fine roots; 30 percent dark yellowish brown (10YR 4/4), moist, clay films; 2 percent by volume 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, hellige-truog; clear smooth boundary. Lab sample # MU058432. The roots stop abruptly at the bottom of this horizon.
    2Btx—71 to 102 centimeters (28.0 to 40.2 inches); pale brown (10YR 6/3) extremely gravelly silt loam; weak very coarse prismatic structure; firm; brittle; few (0.9) medium roots top of horizon and few (0.1) fine roots between peds and few (0.9) fine roots top of horizon; 10 percent dark yellowish brown (10YR 4/4), moist, clay films and 10 percent black (10YR 2/1), moist, manganese or iron-manganese stains; 10 percent brown (7.5YR 4/4), moist, masses of oxidized iron and 10 percent grayish brown (10YR 5/2), moist, iron depletions; 5 percent by volume indurated 75-162-250 millimeter limestone, cherty fragments and 55 percent by volume indurated 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 5.0, hellige-truog; gradual smooth boundary. Lab sample # MU058433. This horizon is 80% brittle. The seams are 14 in. or more apart. The roots are in the seams only.
    3Bt1—102 to 140 centimeters (40.2 to 55.1 inches); brown (7.5YR 4/4) extremely gravelly loam; weak fine subangular blocky structure; firm; 0.8 fine roots between peds; 30 percent brown (7.5YR 4/4), moist, clay films; 10 percent reddish brown (5YR 4/4), moist, masses of oxidized iron and 20 percent brown (10YR 5/3), moist, masses of oxidized iron; 20 percent by volume indurated 75-162-250 millimeter limestone, cherty fragments and 40 percent by volume indurated 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, hellige-truog; gradual smooth boundary. Lab sample # MU058434. Roots are in voids.
    3Bt2—140 to 203 centimeters (55.1 to 79.9 inches); strong brown (7.5YR 5/6) very gravelly loam; weak fine subangular blocky structure; firm; 30 percent brown (7.5YR 4/4), moist, clay films; 10 percent dark yellowish brown (10YR 4/6), moist, masses of oxidized iron; 20 percent by volume indurated 75-162-250 millimeter limestone, cherty fragments and 30 percent by volume indurated 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.2, hellige-truog. Lab sample # MU058435