IDENTIFIERS

  • Current Taxon Name (Soil Name): Delassus
  • OSD
  • Series Extent
  • User Site ID: 1998MO203008M
  • User Pedon ID: 1998MO203008M
  • User Site Association ID: 8664
  • Transect:
  • Transect Stop Number - 3
  • Transect Interval - 200.0
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M9861308
  • NCSS Pedon Lab Data NASIS Record ID - 27060
  • Print Date: 11/21/2024

    • 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: 37.1277889
  • Std. Longitude: -91.1833944
  • Datum: WGS84
  • State: Missouri
  • County: MO203—Shannon
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO203—Shannon County, Missouri
  • 7.5 Minute USGS Quad: 37091-B2—Powder Mill Ferry, Missouri

    • PEDON

  • Describers Name: LT, BM, MS
  • Current Taxonomic Class: Fine-loamy, mixed, active, mesic Humic Fragiudults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: within range of map unit
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Delassus
  • PSC - 15 to 56 cm.
  • Classificaton Date - 12/10/2010
  • 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 - 15 to 56 cm.
  • Classificaton Date - 3/10/1998
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 43 Cation exchange capacity to clay ratio and 23 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: linear
  • Drainage Class: moderately well
  • Bedrock: h slight weathered mixed-igneous and sedimentary
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

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

    fragipan

    —

    56 - 122

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

    mollic epipedon

    argillic horizon

    fragipan

    0—15

    41—56

    56—122

    —-

    —-

    —-
    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

    12

    —

    —

    207

    —

    48

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 15 centimeters (0.0 to 5.9 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2) and brown (10YR 5/3), dry; loam; weak fine granular structure; very friable; 7.0 fine to coarse roots; 7.0 fine and medium interstitial and tubular pores; 2 percent by volume 2-39-75 millimeter rhyolite fragments and 5 percent by volume 75-162-250 millimeter rhyolite fragments; moderately acid, pH 5.6, hellige-truog; clear wavy boundary. Lab sample # MU013903
    Bt1—15 to 41 centimeters (5.9 to 16.1 inches); yellowish brown (10YR 5/4) silt loam; weak fine granular structure; very friable; 7.0 fine to coarse roots; 7.0 fine and medium tubular pores; 35 percent distinct brown (10YR 5/3), moist, clay films on faces of peds; 2 percent by volume 2-39-75 millimeter rhyolite fragments and 5 percent by volume 75-162-250 millimeter rhyolite fragments; very strongly acid, pH 4.5, hellige-truog; clear smooth boundary. Lab sample # MU013904. continuous - phpvsfiid 1771410; continuous - phpvsfiid 1771410
    Bt2—41 to 56 centimeters (16.1 to 22.0 inches); light yellowish brown (10YR 6/4) very gravelly loam; weak fine subangular blocky structure; friable; 3.0 fine and medium roots and 0.9 coarse roots; 7.0 fine and medium tubular pores; 15 percent distinct yellowish brown (10YR 5/4), moist, clay films on faces of peds; 5 percent by volume 75-162-250 millimeter rhyolite fragments and 35 percent by volume 2-39-75 millimeter rhyolite fragments; very strongly acid, pH 4.7, hellige-truog; clear smooth boundary. Lab sample # MU013905. discontinuous - phpvsfiid 1771405; discontinuous - phpvsfiid 1771405
    2Btx1—56 to 81 centimeters (22.0 to 31.9 inches); light brown (7.5YR 6/3) very gravelly coarse sandy loam; moderate medium prismatic structure; friable; brittle; 0.9 fine and medium roots; 3.0 fine to coarse interstitial and tubular pores; 35 percent distinct brown (7.5YR 5/4), moist, clay films on faces of peds and 75 percent distinct pink (7.5YR 7/3), moist, silt coats on rock fragments; 15 percent fine and medium threadlike brownish yellow (10YR 6/8) iron-manganese masses throughout; 5 percent by volume 75-162-250 millimeter rhyolite fragments and 45 percent by volume 2-39-75 millimeter rhyolite fragments; very strongly acid, pH 4.6, hellige-truog; gradual wavy boundary. Lab sample # MU013906. This horizon has 60% Brittleness.; continuous - phpvsfiid 1771408; continuous - phpvsfiid 1771409; continuous - phpvsfiid 1771408; continuous - phpvsfiid 1771409
    2Btx2—81 to 122 centimeters (31.9 to 48.0 inches); light reddish brown (5YR 6/3) very gravelly coarse sandy loam; moderate medium prismatic structure; friable; brittle; 0.9 fine and medium roots; 3.0 fine to coarse interstitial and tubular pores; 35 percent distinct brown (7.5YR 5/4), moist, clay films in root channels and/or pores and 75 percent distinct pink (5YR 7/3), moist, silt coats on rock fragments; 10 percent by volume 75-162-250 millimeter rhyolite fragments and 45 percent by volume 2-39-75 millimeter rhyolite fragments; very strongly acid, pH 4.6, hellige-truog; clear smooth boundary. Lab sample # MU013907. This horizon has 60% Brittleness.; continuous - phpvsfiid 1771411; continuous - phpvsfiid 1771412; continuous - phpvsfiid 1771411; continuous - phpvsfiid 1771412
    3Bt3—122 to 163 centimeters (48.0 to 64.2 inches); 70 percent red (2.5YR 4/8) and 30 percent light brown (7.5YR 6/3) clay; moderate medium angular blocky structure; very firm; 0.9 fine and medium roots; 7.0 fine tubular pores; 35 percent distinct brown (7.5YR 5/4), moist, clay films on faces of peds and 75 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds; fragments; extremely acid, pH 4.3, hellige-truog; clear smooth boundary. Lab sample # MU013908. continuous - phpvsfiid 1771403; continuous - phpvsfiid 1771404; continuous - phpvsfiid 1771403; continuous - phpvsfiid 1771404
    3Bt4—163 to 203 centimeters (64.2 to 79.9 inches); 50 percent red (2.5YR 4/8) and 50 percent brown (7.5YR 5/4) clay; moderate medium angular blocky structure; very firm; 0.9 fine and medium roots; 7.0 fine tubular pores; 35 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds and 35 percent distinct yellowish brown (10YR 5/4), moist, clay films on faces of peds; fragments. Lab sample # MU013909. continuous - phpvsfiid 1771406; continuous - phpvsfiid 1771407; continuous - phpvsfiid 1771406; continuous - phpvsfiid 1771407