IDENTIFIERS

  • Current Taxon Name (Soil Name): Gunlock
  • OSD
  • Series Extent
  • User Site ID: 1994MO125030M
  • User Pedon ID: 1994MO125030
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9412530
  • Print Date: 12/17/2024

    • 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: 38.0688889
  • Std. Longitude: -91.6522222
  • Datum: WGS84
  • Township: T39N
  • Range: R7W
  • Section: 26
  • PLSS Details: 1150 feet N and 600 feet W of the SE corner
  • State: Missouri
  • County: MO125—Maries
  • MLRA: 116A—Ozark Highland

    • PEDON

  • Describers Name: Keith Davis Brad Berhorst Wyn Kelley
  • Current Taxonomic Class: Fine, mixed Typic Hapludalfs
  • Pedon Type: representative pedon for component
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Gunlock
  • Taxonomic Class - Fine, mixed Typic Hapludalfs
  • Taxon Kind - series
  • PSC - 15 to 66 cm.
  • Classificaton Date - 12/5/1994
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess and/or residuum
  • Landscape: hills
  • Landform: ridge
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: shoulder
  • Slope Position: upper third
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/5/1994 (actual site observation date)
  • Air Photo ID: 15A
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • 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

    ochric epipedon

    argillic horizon

    0—15

    15—203

    —-

    —-
    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

    7

    61

    15.2

    293

    —

    45

    —

    —

    —

    —

    —

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    Ap—0 to 15 centimeters (0.0 to 5.9 inches); dark grayish brown (10YR 4/2) interior silt loam; weak very fine subangular blocky parts to moderate fine granular structure; friable; 5.0 very fine and fine roots throughout; 2.0 fine moderate-continuity vesicular pores; fragments; slightly acid, pH 6.3, hellige-truog; abrupt smooth boundary. Lab sample # MU050730. all gravels and cobbles throughout this pedon are chert
    Bt1—15 to 33 centimeters (5.9 to 13.0 inches); strong brown (7.5YR 4/6) interior silty clay; moderate fine subangular blocky structure; firm; 5.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 fine moderate-continuity vesicular pores; 25 percent distinct clay films on faces of peds; fragments; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary. Lab sample # MU050731. continuous - phpvsfiid 145073; continuous - phpvsfiid 145073
    Bt2—33 to 51 centimeters (13.0 to 20.1 inches); 65 percent brown (10YR 5/3) interior silty clay; 10 percent strong brown (7.5YR 4/6) fine prominent irregular and 25 percent red (2.5YR 4/6) fine prominent irregular mottles; moderate medium subangular blocky structure; firm; 3.0 very fine and fine roots throughout; 1.0 very fine moderate-continuity vesicular pores; 25 percent distinct clay films on faces of peds; fragments; very strongly acid, pH 4.6, hellige-truog; clear wavy boundary. Lab sample # MU050732. continuous - phpvsfiid 145074; continuous - phpvsfiid 145074
    2Bt3—51 to 69 centimeters (20.1 to 27.2 inches); 1 percent grayish brown (10YR 5/2) interior very gravelly clay; 2 percent strong brown (7.5YR 4/6) fine prominent irregular and 18 percent brown (10YR 5/3) fine faint irregular mottles; moderate fine subangular blocky structure; firm; 6.0 very fine roots top of horizon and 3.0 fine roots top of horizon; 1.0 very fine moderate-continuity vesicular pores; 25 percent faint clay films on faces of peds; 50 percent by volume subrounded 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.6, hellige-truog; clear wavy boundary. Lab sample # MU050733. continuous - phpvsfiid 145075; continuous - phpvsfiid 145075
    2Btx1—69 to 102 centimeters (27.2 to 40.2 inches); brown (10YR 5/3) interior extremely gravelly silt loam; weak medium prismatic parts to weak very fine subangular blocky structure; very firm; 0.5 very fine roots in cracks; 6.0 very fine and fine low-continuity vesicular pores; 5 percent faint dark reddish brown (5YR 2/2), moist, manganese or iron-manganese stains on faces of peds and 25 percent faint clay films on faces of peds; 70 percent by volume subrounded 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.6, hellige-truog; clear wavy boundary. Lab sample # MU050734. water seeping in pit at 27" vertical gray 10YR5/2 seams 5" apart in upper part of horizon - 1/8" wide; discontinuous - phpvsfiid 145077; continuous - phpvsfiid 145076; discontinuous - phpvsfiid 145077; continuous - phpvsfiid 145076
    2Btx2—102 to 127 centimeters (40.2 to 50.0 inches); 60 percent yellowish brown (10YR 5/4) interior extremely gravelly silt loam; 40 percent strong brown (7.5YR 5/6) fine prominent irregular mottles; weak very fine massive; very firm; 6.0 very fine and fine low-continuity vesicular pores; 25 percent faint clay films on faces of peds; 20 percent by volume subrounded 75-162-250 millimeter unspecified fragments and 50 percent by volume subrounded 2-39-75 millimeter unspecified fragments; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # MU050735. continuous - phpvsfiid 145078; continuous - phpvsfiid 145078
    3Bt4—127 to 163 centimeters (50.0 to 64.2 inches); 60 percent yellowish brown (10YR 5/6) interior clay; 10 percent strong brown (7.5YR 5/6) fine distinct irregular and 30 percent red (2.5YR 4/6) medium prominent irregular mottles; moderate fine angular blocky structure; firm; 0.2 very fine moderate-continuity vesicular pores; 50 percent distinct clay films on faces of peds; 20 percent by volume subrounded 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.3, hellige-truog; gradual smooth boundary. Lab sample # MU050736. continuous - phpvsfiid 145079; continuous - phpvsfiid 145079
    3Bt5—163 to 203 centimeters (64.2 to 79.9 inches); 78 percent yellowish brown (10YR 5/6) interior clay; 2 percent strong brown (7.5YR 5/6) fine distinct irregular and 20 percent red (2.5YR 4/6) medium prominent irregular mottles; moderate medium angular blocky structure; firm; 0.1 very fine low-continuity vesicular pores; 50 percent distinct clay films on faces of peds; 5 percent by volume subrounded 2-39-75 millimeter unspecified fragments; moderately acid, pH 5.8, hellige-truog. Lab sample # MU050737. continuous - phpvsfiid 145080; continuous - phpvsfiid 145080