IDENTIFIERS

  • Current Taxon Name (Soil Name): Delassus
  • OSD
  • Series Extent
  • User Site ID: 1998MO203007M
  • User Pedon ID: 1998MO203007M
  • User Site Association ID: 8664
  • Transect:
  • Transect Stop Number - 2
  • Transect Interval - 200.0
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M9861307
  • NCSS Pedon Lab Data NASIS Record ID - 27059
  • Print Date: 3/13/2025

    • 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: 37.1279333
  • Std. Longitude: -91.1840778
  • Datum: WGS84
  • Township: T29N
  • Range: R2W
  • Section: 5
  • PLSS Details: 990 feet W and 250 feet S of the NE corner
  • Location Description: 990 feet west and 250 feet south of the northeast corner of sec. 5, T. 29 N., R. 2 W.
  • State: Missouri
  • County: MO203—Shannon
  • MLRA: 116A—Ozark Highland
  • MLRA Soil Survey Area: NC-SPM—Springfield, Missouri
  • Non-MLRA Soil Survey Area: MO203—Shannon County, Missouri
  • 7.5 Minute USGS Quad: 37091-B2—Powder Mill Ferry, Missouri

    • PEDON

  • Describers Name: BM, LT,MS
  • Current Taxonomic Class: Fine-loamy, mixed, active, mesic Typic Fragiudults
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Delassus
  • PSC - 33 to 51 cm.
  • Classificaton Date - 4/1/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Delassus
  • Taxonomic Class - Fine-loamy, mixed, active, mesic Typic Fragiudults
  • Taxon Kind - series
  • PSC - 33 to 51 cm.
  • Classificaton Date - 3/10/1998
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 42 Cation exchange capacity to clay ratio and 18 percent of Percent clay in the control section


    • SITE

  • Parent Material: residuum weathered from igneous and sedimentary rock
  • Landscape: hills
  • Landform: hill
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: footslope
  • Slope Shape Across: convex
  • Slope Shape Down: concave
  • Drainage Class: moderately well
  • Bedrock: h slight weathered mixed-igneous and sedimentary
  • Surface Fragments: 47.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/10/1998 (actual site observation date)
  • Air Photo ID: 15
  • 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

    fragipan

    —

    51 - 109

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

    ochric epipedon

    argillic horizon

    fragipan

    0—33

    33—51

    51—109

    —-

    —-

    —-
    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

    15

    —

    —

    192

    —

    18

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 20 centimeters (0.0 to 7.9 inches); brown (10YR 4/3) gravelly loam; weak fine granular structure; very friable; 7.0 fine and medium roots and 3.0 coarse roots; 7.0 fine and medium interstitial and tubular pores; 20 percent by volume 2-39-75 millimeter rhyolite fragments; strongly acid, pH 5.1, hellige-truog; clear smooth boundary. Lab sample # MU013896
    AE—20 to 33 centimeters (7.9 to 13.0 inches); yellowish brown (10YR 5/6) gravelly silt loam; weak fine granular structure; friable; 7.0 fine and medium roots and 3.0 coarse roots; 3.0 fine and medium tubular pores; 35 percent distinct brown (10YR 4/3), moist, organic stains on faces of peds; 25 percent by volume 2-39-75 millimeter rhyolite fragments; strongly acid, pH 5.3, hellige-truog; clear smooth boundary. Lab sample # MU013897. continuous - phpvsfiid 1771398; continuous - phpvsfiid 1771398
    Bt1—33 to 51 centimeters (13.0 to 20.1 inches); strong brown (7.5YR 5/6) gravelly loam; moderate medium subangular blocky structure; friable; 3.0 fine and medium roots and 0.9 coarse roots; 3.0 fine and medium tubular pores; 15 percent distinct brown (7.5YR 4/4), moist, clay films on rock fragments; 25 percent by volume 2-39-75 millimeter rhyolite fragments; strongly acid, pH 5.1, hellige-truog; gradual wavy boundary. Lab sample # MU013898. patchy - phpvsfiid 1771400; patchy - phpvsfiid 1771400
    2Btx1—51 to 81 centimeters (20.1 to 31.9 inches); strong brown (7.5YR 5/6) very gravelly coarse sandy loam; weak very coarse prismatic structure; firm; brittle; 0.9 medium roots and 3.0 fine roots; 3.0 fine interstitial and tubular pores; 35 percent distinct strong brown (7.5YR 4/6), moist, clay films on faces of peds and 35 percent distinct pink (7.5YR 7/3), moist, silt coats on faces of peds; 15 percent fine and medium irregular black (N 2/0) iron-manganese masses; 10 percent by volume 75-162-250 millimeter rhyolite fragments and 40 percent by volume 2-39-75 millimeter rhyolite fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU013899. This horizon has about 60% Brittleness in it.; continuous - phpvsfiid 1771396; continuous - phpvsfiid 1771397; continuous - phpvsfiid 1771396; continuous - phpvsfiid 1771397
    2Btx2—81 to 109 centimeters (31.9 to 42.9 inches); 60 percent brown (7.5YR 5/4) and 40 percent light gray (5YR 7/1) gravelly loam; weak very coarse prismatic structure; firm; brittle; 0.9 fine roots; 3.0 fine interstitial and tubular pores; 35 percent distinct brown (7.5YR 4/4), moist, clay films on faces of peds; 35 percent fine and medium threadlike light gray (5YR 7/1) iron depletions throughout and 75 percent medium threadlike reddish yellow (7.5YR 6/8) iron-manganese masses throughout; 30 percent by volume 2-39-75 millimeter rhyolite fragments; very strongly acid, pH 4.7, hellige-truog; gradual smooth boundary. Lab sample # MU013900. This horizon has about 60% Brittleness in it.; continuous - phpvsfiid 1771399; continuous - phpvsfiid 1771399
    3Bt3—109 to 152 centimeters (42.9 to 59.8 inches); 50 percent red (2.5YR 4/8) and 50 percent light brown (7.5YR 6/3) very cobbly loam; moderate medium angular blocky structure; friable; 0.9 fine roots; 3.0 fine and medium tubular pores; 35 percent distinct strong brown (7.5YR 5/6), moist, clay films on faces of peds and 75 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds; 35 percent medium irregular strong brown (7.5YR 5/8) iron-manganese masses throughout; 15 percent by volume 2-39-75 millimeter rhyolite fragments and 30 percent by volume 75-162-250 millimeter rhyolite fragments; very strongly acid, pH 4.6, hellige-truog; gradual wavy boundary. Lab sample # MU013901. continuous - phpvsfiid 1771401; continuous - phpvsfiid 1771402; continuous - phpvsfiid 1771401; continuous - phpvsfiid 1771402
    3Bt4—152 to 198 centimeters (59.8 to 78.0 inches); 60 percent red (2.5YR 5/8) and 40 percent light gray (7.5YR 7/1) very cobbly loam; moderate medium angular blocky structure; friable; 0.1 fine roots; 3.0 fine and medium tubular pores; 15 percent distinct yellowish brown (10YR 5/6), moist, clay films on faces of peds and 35 percent distinct red (2.5YR 4/8), moist, clay films on faces of peds; 35 percent medium threadlike strong brown (7.5YR 5/8) iron-manganese masses throughout and 35 percent medium threadlike light gray (7.5YR 7/1) iron depletions throughout; 15 percent by volume 2-39-75 millimeter rhyolite fragments and 40 percent by volume 75-162-250 millimeter rhyolite fragments; very strongly acid, pH 4.7, hellige-truog. Lab sample # MU013902. continuous - phpvsfiid 1771394; patchy - phpvsfiid 1771395; continuous - phpvsfiid 1771394; patchy - phpvsfiid 1771395