IDENTIFIERS

  • Current Taxon Name (Soil Name): Opequon
  • OSD
  • Series Extent
  • User Site ID: 1995MO203115M
  • User Pedon ID: 1995MO203115M
  • User Site Association ID: 8640
  • Transect:
  • User Transect ID - shannon-82D1
  • Transect Stop Number - 1
  • Transect Interval - 200.0
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M9661315
  • NCSS Pedon Lab Data NASIS Record ID - 26464
  • Print Date: 4/28/2025

    • 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: 37.3837917
  • Std. Longitude: -91.3697861
  • 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-D3—Loggers Lake, Missouri

    • PEDON

  • Describers Name: MS
  • Current Taxonomic Class: Clayey, mixed, active, mesic Lithic Hapludalfs
  • 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 - Opequon
  • PSC - 10 to 33 cm.
  • Classificaton Date - 1/31/2012
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Arkana
  • Taxonomic Class - Very-fine, mixed, active, mesic Mollic Hapludalfs
  • Taxon Kind - series
  • PSC - 10 to 33 cm.
  • Classificaton Date - 12/6/1995
  • Moisture Class - udic
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 3
  • Field Measured Properties: 51 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: residuum weathered from dolomite
  • Landscape: hills
  • Landform: flood plain
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/6/1995 (actual site observation date)
  • 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

    bedrock, lithic

    —

    33 -

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

    ochric epipedon

    argillic horizon

    lithic contact

    0—10

    10—25

    33—

    —-

    —-

    —-
    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

    5

    —

    —

    —

    —

    80

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 10 centimeters (0.0 to 3.9 inches); very dark grayish brown (10YR 3/2) extremely gravelly clay; weak fine subangular blocky, and weak fine granular structure; firm; 3.0 fine and medium roots; 3.0 fine and medium interstitial and tubular pores; 10 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # MU009808
    Bt—10 to 25 centimeters (3.9 to 9.8 inches); reddish brown (2.5YR 4/4) gravelly clay; moderate fine subangular blocky structure; firm; 3.0 fine to coarse roots; 3.0 fine and medium tubular pores; 15 percent distinct dark brown (7.5YR 3/3) clay films on faces of peds and 75 percent distinct reddish brown (5YR 4/4) clay films on faces of peds; 20 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; slightly alkaline, pH 7.5, hellige-truog; abrupt smooth boundary. Lab sample # MU009809
    BC—25 to 33 centimeters (9.8 to 13.0 inches); 50 percent red (2.5YR 4/6) and 50 percent reddish yellow (5YR 6/6) sandy loam; weak fine subangular blocky, and single grain; friable; 0.9 very fine and fine roots; 3.0 very fine and fine tubular pores; 35 percent distinct reddish brown (2.5YR 4/4) clay films on faces of peds and 35 percent distinct pink (5YR 7/4) silt coats on faces of peds; fragments; slightly alkaline, pH 7.6, hellige-truog; abrupt smooth boundary. Lab sample # MU009810
    R—33 centimeters (13.0 inches); bedrock; fragments.