IDENTIFIERS

  • Current Taxon Name (Soil Name): Okemah
  • OSD
  • Series Extent
  • User Site ID: S2012OK105001
  • User Pedon ID: S2012OK105001
  • User Site Association ID: MLRA 112 - Natric ProjectMLRA 116 A & B - Natric Project
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Print Date: 9/24/2024

    • 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: 36.6271806
  • Std. Longitude: -95.6732111
  • Datum: WGS84
  • Location Description: S 23, T 25N, R 15E
  • Map Unit: OkA—Okemah silt loam, 0 to 1 percent slopes
  • State: Oklahoma
  • County: OK105—Nowata
  • MLRA: 112—Cherokee Prairies
  • Non-MLRA Soil Survey Area: OK105—Nowata County, Oklahoma
  • 7.5 Minute USGS Quad: 36095-F6—Nowata West, Oklahoma

    • PEDON

  • Describers Name: Jr Perkins, Gene Campbell
  • Current Taxonomic Class: Fine, mixed, active, thermic Aquic Paleudolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, brief description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - Okemah
  • Taxonomic Class - Fine, mixed, active, thermic Aquic Paleudolls
  • Taxon Kind - series
  • PSC - 40 to 90 cm.
  • Classificaton Date - 9/20/2012
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: clayey alluvium over residuum weathered from shale
  • Landscape: plains
  • Landform: hillslope
  • Hill Slope Profile: footslope
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: somewhat poorly
  • Geology: Marmaton Group formation of the Pennsylvanian group.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/10/2012 (actual site observation date)
  • Data Collector: JR Perkins, Gene Campbell
  • 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 Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    redox concentrations

    slickensides

    reduced matrix

    0—73

    40—173

    40—173

    40—120

    73—173

    —-

    —-

    —-

    —-

    —-
    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

    2.5

    —

    —

    221

    —

    150

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 19 centimeters (0.0 to 7.5 inches); silt loam; moderate fine granular structure; fragments.
    A—19 to 40 centimeters (7.5 to 15.7 inches); silt loam; moderate fine subangular blocky structure; fragments.
    Bt—40 to 73 centimeters (15.7 to 28.7 inches); silty clay; moderate medium prismatic parts to moderate medium subangular blocky structure; 5 percent slickensides (pedogenic) and 20 percent faint black (10YR 2/1) clay films; 5 percent fine yellowish brown (10YR 5/4) masses of oxidized iron; fragments.
    Btg1—73 to 95 centimeters (28.7 to 37.4 inches); silty clay; moderate medium prismatic parts to moderate medium subangular blocky structure; 5 percent slickensides (pedogenic) and 20 percent distinct very dark gray (10YR 3/1) clay films; 20 percent fine light olive brown (2.5Y 5/3) masses of oxidized iron; fragments.
    Btg2—95 to 120 centimeters (37.4 to 47.2 inches); silty clay; moderate medium prismatic parts to moderate medium subangular blocky structure; 5 percent slickensides (pedogenic) and 20 percent distinct black (10YR 2/1) clay films; 1 percent fine iron-manganese concretions and 20 percent fine black (2.5Y 5/4) masses of oxidized iron; fragments.
    Btg3—120 to 147 centimeters (47.2 to 57.9 inches); silty clay; weak coarse prismatic parts to moderate medium subangular blocky structure; 5 percent distinct dark gray (10YR 4/1) clay films; 1 percent fine iron-manganese concretions and 5 percent fine very dark gray (7.5YR 3/1) iron-manganese masses and 10 percent fine gray (2.5Y 6/1) masses of reduced iron and 15 percent fine strong brown (7.5YR 5/6) masses of oxidized iron; fragments.
    Btg4—147 to 173 centimeters (57.9 to 68.1 inches); silty clay; weak coarse prismatic parts to moderate medium subangular blocky structure; 5 percent faint dark gray (2.5Y 4/1) clay films; 1 percent fine iron-manganese concretions and 2 percent fine very dark gray (7.5YR 3/1) iron-manganese masses and 20 percent fine yellowish brown (10YR 5/6) masses of oxidized iron; fragments.