IDENTIFIERS

  • Current Taxon Name (Soil Name): Cobbsfork
  • OSD
  • Series Extent
  • User Site ID: S1993IN079001
  • User Pedon ID: S1993IN079001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 93P0642
  • NCSS Pedon Lab Data NASIS Record ID - 65985
  • Print Date: 6/2/2024

    • 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: 39.0327797
  • Std. Longitude: -85.6011124
  • Datum: WGS84
  • Township: 7N
  • Range: 9E
  • Section: 22
  • PLSS Details: 264 feet east and 188 feet north of the southwest corner
  • Location Description: SEPAC farm
  • State: Indiana
  • County: IN079—Jennings
  • MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain
  • Non-MLRA Soil Survey Area: IN607—Jennings County Area, Indiana
  • 7.5 Minute USGS Quad: 39085-A5—Butlerville, Indiana

    • PEDON

  • Describers Name: Steve Ross, Bill Hosteter
  • Current Taxonomic Class: Fine-loamy, mixed, active, mesic Fragic Glossaqualfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: research site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Cobbsfork
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/23/2007
  • Moisture Class - aquic
  • Sampled As Information:
  • Soil Name - Cobbsfork
  • Taxonomic Class - Fine-silty, mixed, mesic Typic Glossaqualf
  • Taxon Kind - series
  • Classificaton Date - 6/10/1993
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: till plain
  • Landform: ground moraine
  • Geomorphic Component Hills: interfluve
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: very low
  • Drainage Class: poorly
  • Flooding: none flooding
  • Wet Soil Moisture Duration: 120
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/10/1993 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    fragipan

    0—25

    86—356

    124—229

    —-

    —-

    —-
    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

    1

    —

    —

    248

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 25 centimeters (0.0 to 9.8 inches); brown (10YR 5/3) crushed silt loam; weak fine and medium subangular blocky parts to weak fine granular structure; friable, noncoherent; 3.0 very fine and fine roots throughout; 3.0 very fine and fine moderate-continuity vesicular and tubular and 21.0 medium high-continuity tubular pores; fragments; neutral, pH 7.1, bromthymol blue; abrupt smooth boundary. Lab sample # 93P04509
    E—25 to 46 centimeters (9.8 to 18.1 inches); light gray (10YR 7/1) crushed silt loam; 3 percent brownish yellow (10YR 6/8) fine and medium distinct irregular mottles; weak coarse subangular blocky structure; friable, noncoherent; 3.0 very fine and fine roots throughout; 3.0 very fine and fine low-continuity vesicular and tubular pores; 10 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on faces of peds; fragments; neutral, pH 7.0, bromthymol blue; gradual wavy boundary. Lab sample # 93P04510. patchy - phpvsfiid 176673; patchy - phpvsfiid 176673
    EB—46 to 86 centimeters (18.1 to 33.9 inches); light brownish gray (10YR 6/2) broken face silt loam; 3 percent yellowish brown (10YR 5/4) medium and coarse distinct irregular mottles; weak fine and medium subangular blocky structure; friable, noncoherent; 3.0 very fine and fine roots throughout; 3.0 medium moderate-continuity continuous tubular pores; 10 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains; 3 percent fine and medium irregular black (10YR 2/1) iron-manganese masses throughout; fragments; very strongly acid, pH 4.8, bromcresol green; gradual wavy boundary. Lab sample # 93P04511. patchy - phpvsfiid 176674; patchy - phpvsfiid 176674
    Bt—86 to 124 centimeters (33.9 to 48.8 inches); light gray (10YR 7/1) broken face silt loam; 21 percent strong brown (7.5YR 5/8) fine and medium distinct irregular mottles; weak and moderate medium subangular blocky structure; friable, noncoherent; 3.0 very fine and fine roots throughout; 3.0 medium moderate-continuity continuous tubular pores; 30 percent distinct light yellowish brown (2.5Y 6/4), moist, clay films on faces of peds and in pores; 3 percent fine and medium spherical black (10YR 2/1) iron-manganese masses throughout; fragments; very strongly acid, pH 4.8, bromcresol green; clear irregular boundary. Lab sample # 93P04512. irregular shaped bodies of E material are throughout.; patchy - phpvsfiid 176675; patchy - phpvsfiid 176675
    2Btx/E—124 to 229 centimeters (48.8 to 90.2 inches); gray (10YR 6/1) silt loam; 3 percent yellowish brown (10YR 5/8) medium prominent mottles; weak medium subangular blocky structure; friable; 0.1 roots; 10 percent faint grayish brown (10YR 5/2) clay films on faces of peds; 1 percent black (10YR 2/1) iron-manganese concretions; fragments. Lab sample # 93P04513. 93P4514 and 93P4515 also lab sample numbers. The prisms are a maximum of 7 inches at the bottom of the horizon. At a depth of 60 inches on the vertical face a horizontal transect showed that the face was 63 percent brittle 7.5 YR material (2Btx) and 37 percent 10YR 6/1 material (E). At a depth of 80 inches another transect showed that the face was 75 percent brittle 7.5YR 4/6 material (2Btx) and 25 percent 10YR 6/1 silty material (E). A horizontal face was examined at a depth of 80 inches and a 20 inch by 20 inch zone had the following composition: 40 percent brittle 7.5YR 4/6 material (2Btx), 40 percent 10YR 6/1 material (E) and 20 percent 7.5YR4/4 material.; patchy - phpvsfiid 192259; patchy - phpvsfiid 192259
    2Btx/E—124 to 229 centimeters (48.8 to 90.2 inches); strong brown (7.5YR 4/6) silt loam; 3 percent yellowish brown (10YR 5/4) medium distinct and 3 percent brown (7.5YR 4/4) medium distinct mottles; 0.5 very fine and fine pores; 30 percent manganese or iron-manganese stains; fragments. Lab sample # 93P04513, 93P04515
    3Bt1—229 to 244 centimeters (90.2 to 96.1 inches); yellowish brown (10YR 5/6) broken face extremely cobbly silty clay loam; 21 percent light brownish gray (10YR 6/2) fine and medium distinct irregular mottles; weak coarse subangular blocky structure; firm, noncoherent; 3.0 very fine and fine roots throughout; 10 percent distinct gray (10YR 5/1), moist, clay films on faces of peds; 21 percent extremely coarse spherical moderately coherent cemented black (10YR 2/1) iron-manganese concretions throughout; 10 percent by volume subangular 2-39-75 millimeter igneous, unspecified fragments and 10 percent by volume subangular 2-39-75 millimeter sedimentary, unspecified fragments and 60 percent by volume subrounded 20-48-75 millimeter limestone, unspecified fragments; neutral, pH 6.8, bromthymol blue; abrupt smooth boundary. patchy - phpvsfiid 192260; patchy - phpvsfiid 192260
    3Bt2—244 to 279 centimeters (96.1 to 109.8 inches); strong brown (7.5YR 5/6) broken face silty clay loam; 3 percent brown (7.5YR 5/4) fine and medium distinct irregular mottles; weak coarse and very coarse prismatic parts to strong medium and coarse subangular blocky structure; firm, noncoherent; 3.0 very fine and fine roots throughout; 3.0 very fine and fine moderate-continuity vesicular and tubular pores; 30 percent prominent light brownish gray (10YR 6/2) skeletans on faces of peds and 75 percent prominent gray (10YR 5/1), moist, clay films on faces of peds; 3 percent fine and medium spherical black (10YR 2/1) iron-manganese masses between peds; 2 percent by volume subangular 2-39-75 millimeter limestone, unspecified fragments; neutral, pH 6.8, bromthymol blue; gradual wavy boundary. Lab sample # 93P04516. discontinuous - phpvsfiid 192264; continuous - phpvsfiid 192261; discontinuous - phpvsfiid 192264; continuous - phpvsfiid 192261
    3Bt3—279 to 356 centimeters (109.8 to 140.2 inches); strong brown (7.5YR 5/6) broken face clay; 3 percent brown (7.5YR 4/4) medium and coarse faint irregular and 3 percent gray (10YR 5/1) fine and medium prominent irregular mottles; weak coarse and very coarse prismatic parts to strong coarse and very coarse subangular blocky structure; very firm, noncoherent; 3 percent fine and medium spherical black (10YR 2/1) iron-manganese masses throughout; 2 percent by volume subangular 2-39-75 millimeter limestone, unspecified fragments; neutral, pH 7.2, bromthymol blue. Lab sample # 93P04517
    R—356 centimeters (140.2 inches); fragments. hard limestone bedrock.