IDENTIFIERS

  • Current Taxon Name (Soil Name): Knobby
  • OSD
  • Series Extent
  • User Site ID: 1991MO161028M
  • User Pedon ID: 1991MO161028
  • Transect:
  • User Transect ID - T3391
  • Transect Stop Number - 3
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9116128
  • Print Date: 11/23/2024

    • 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: 37.6837500
  • Std. Longitude: -91.9203889
  • Datum: WGS84
  • Township: T34N
  • Range: R9W
  • Section: 4
  • PLSS Details: 3785 feet N and 810 feet W of the SE corner
  • Location Description: Whitson Hollow MTNF
  • Map Unit: 73184—Knobby-Rock outcrop complex, 8 to 35 percent slopes, extremely stony
  • State: Missouri
  • County: MO161—Phelps
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO161—Phelps County, Missouri

    • PEDON

  • Describers Name: GB
  • Current Taxonomic Class: Loamy-skeletal, mixed, superactive Lithic Hapludolls
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Knobby
  • PSC - 0 to 18 cm.
  • Classificaton Date - 1/31/2012
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Knobby
  • Taxon Kind - series
  • PSC - 0 to 18 cm.
  • Classificaton Date - 12/16/1991
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from dolomite
  • Landscape: hills
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: dolomite (dolostone) at 18cm
  • Geology: Gasconade formation.
  • Surface Fragments: 10.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/16/1991 (actual site observation date)
  • Air Photo ID: B9
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - other
  • 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

    0—18

    —-
    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

    8

    —

    —

    313

    —

    210

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 8 centimeters (0.0 to 3.1 inches); very dark grayish brown (10YR 3/2), dark grayish brown (10YR 4/2), dry; very cobbly sandy loam; 22 percent clay; weak very fine and fine subangular blocky structure; friable; 6.0 very fine and fine roots and 4.0 medium roots; many very fine tubular and many fine tubular pores; 5 percent by volume nonflat subangular 2-39-75 millimeter dolomite (dolostone) fragments and 10 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments and 25 percent by volume nonflat subangular 75-162-250 millimeter dolomite (dolostone) fragments; slight effervescence, by hcl, unspecified; neutral, pH 7.2, hellige-truog; clear wavy boundary. Lab sample # MU042950
    A2—8 to 13 centimeters (3.1 to 5.1 inches); very dark brown (10YR 2/2), very dark grayish brown (10YR 3/2), dry; very gravelly sandy loam; 25 percent clay; weak very fine and fine subangular blocky structure; friable; 6.0 very fine roots and 4.0 medium roots and 0.5 coarse roots; many very fine tubular and many fine tubular pores; 15 percent by volume 2-39-75 millimeter dolomite (dolostone) fragments and 25 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; slight effervescence, by hcl, unspecified; neutral, pH 7.2, hellige-truog; clear wavy boundary. Lab sample # MU042951
    A3—13 to 18 centimeters (5.1 to 7.1 inches); black (10YR 2/1) extremely channery sandy loam; 25 percent clay; weak very fine subangular blocky structure; friable; common very fine roots and common fine roots; common very fine tubular and common fine tubular pores; 10 percent by volume nonflat 2-?-75 millimeter dolomite (dolostone) fragments and 65 percent by volume flat 2-?-150 millimeter dolomite (dolostone) fragments; abrupt smooth boundary. Lab sample # MU042952
    R—18 centimeters (7.1 inches); bedrock; fragments. Gasconade dolomite bedrock.