IDENTIFIERS

  • Current Taxon Name (Soil Name): Otley
  • OSD
  • Series Extent
  • User Site ID: S1961IA107002
  • User Pedon ID: S1961IA107002
  • Vegetation Plot ID: S1961IA107002
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 40A1444
  • NCSS Pedon Lab Data NASIS Record ID - 35052
  • 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: 41.4338875
  • Std. Longitude: -91.9938889
  • Datum: WGS84
  • Township: 77N
  • Range: 10W
  • Section: 34
  • PLSS Details: 154 feet east and 481 feet south of NW corner of SW 1/4 NE 1/4
  • State: Iowa
  • County: IA107—Keokuk
  • MLRA: 108—Illinois and Iowa Deep Loess and Drift
  • Non-MLRA Soil Survey Area: IA107—Keokuk County, Iowa

    • PEDON

  • Describers Name: R. I. Dideriksen, A. R. Hidlebaugh, and R. C. Russell.
  • Current Taxonomic Class: Fine, smectitic, mesic Oxyaquic Argiudolls
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Otley (flagged as OSD)
  • PSC - 43 to 93 cm.
  • Classificaton Date - 12/10/2014
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Otley
  • Classificaton Date - 10/2/1961
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: ridge
  • Slope Position: on a slope
  • Slope Shape Down: concave
  • Drainage Class: moderately well
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/2/1961 (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
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    TRIFO

    Trifolium

    clover

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    —

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

    mollic epipedon

    argillic horizon

    0—43

    43—155

    25—43—55

    90—112—140
    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

    —

    —

    —

    —

    180

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    —

    —

    —

    —

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    A1p—0 to 18 centimeters (0.0 to 7.1 inches); black (10YR 2/1) and very dark brown (10YR 2/2) and very dark brown (10YR 2/2) rubbed, gray (10YR 5/1), dry; silty clay loam; medium subangular blocky parts to weak fine granular structure; firm; 21.0 tubular pores; 21 percent worm casts; fragments; abrupt smooth boundary. Lab sample # 40A11157. Pores described as worm holes.
    A12—18 to 30 centimeters (7.1 to 11.8 inches); black (10YR 2/1) and very dark brown (10YR 2/2) and very dark brown (10YR 2/2) rubbed, gray (10YR 5/1) and grayish brown (10YR 5/2), dry; silty clay loam; weak fine subangular blocky parts to moderate fine granular structure; friable; 21.0 tubular pores; 1 percent worm casts; fragments; gradual smooth boundary. Lab sample # 40A11158. Weak fine platy structure at 7 to 8 inches; few peds of very dark grayish brown (10YR 3/2) mixed in horizon.
    A3—30 to 43 centimeters (11.8 to 16.9 inches); very dark brown (10YR 2/2) and very dark grayish brown (10YR 3/2) and very dark grayish brown (10YR 3/2), gray (10YR 5/1) and grayish brown (10YR 5/2), dry; silty clay loam; weak very fine subangular blocky parts to moderate fine granular structure; friable; 21.0 very fine and fine tubular and 3.0 tubular pores; 1 percent very dark gray (10YR 3/1) worm casts; fragments; clear smooth boundary. Lab sample # 40A11159. Common pores described as wormholes.
    B21—43 to 53 centimeters (16.9 to 20.9 inches); brown (10YR 4/3) and very dark grayish brown (10YR 3/2) and brown (10YR 4/3) rubbed, light brownish gray (10YR 6/2) and pale brown (10YR 6/3), dry; silty clay loam; 1 percent dark grayish brown (2.5Y 4/2) fine faint mottles; moderate very fine subangular blocky structure; friable; 21.0 very fine and fine tubular and 3.0 tubular pores; 1 percent very dark gray (10YR 3/1) worm casts; fragments; gradual smooth boundary. Lab sample # 40A11160. Common pores described as wormholes; few fine soft oxide concretions.
    B22—53 to 66 centimeters (20.9 to 26.0 inches); brown (10YR 4/3) and very dark grayish brown (10YR 3/2) and brown (10YR 4/3) rubbed, light brownish gray (10YR 6/2) and pale brown (10YR 6/3), dry; silty clay loam; 1 percent dark grayish brown (2.5Y 4/2) fine faint mottles; moderate very fine subangular blocky structure; friable; 21.0 very fine and fine tubular and 3.0 tubular pores; 1 percent very dark gray (10YR 3/1) worm casts; fragments; gradual smooth boundary. Lab sample # 40A11161. Common pores described as wormholes; common soft oxide concretions.
    B23—66 to 81 centimeters (26.0 to 31.9 inches); brown (10YR 4/3) exterior and yellowish brown (10YR 5/4) interior and brown (10YR 5/3) rubbed silty clay loam; 1 percent dark reddish brown (5YR 3/3) fine distinct and 1 percent dark grayish brown (2.5Y 4/2) fine faint mottles; moderate very fine and fine subangular blocky structure; firm; 21.0 very fine and fine tubular and 3.0 tubular pores; clay films on faces of peds; 1 percent worm casts; fragments; gradual smooth boundary. Lab sample # 40A11162. Clay film on all ped; few fine soft oxide concretions; common pores described as wormholes.; continuous - phpvsfiid 1259100; continuous - phpvsfiid 1259100
    B24—81 to 102 centimeters (31.9 to 40.2 inches); brown (10YR 5/3) exterior and grayish brown (2.5Y 5/2) interior and yellowish brown (10YR 5/4) rubbed silty clay loam; 1 percent dark brown (10YR 3/3) medium distinct and 1 percent dark reddish brown (5YR 3/3) fine prominent mottles; weak medium prismatic parts to moderate fine and medium subangular blocky structure; firm; 21.0 very fine and fine tubular and 1.0 tubular pores; 10 percent dark grayish brown (10YR 4/2), moist, coats and 10 percent clay films on faces of peds; fragments; gradual smooth boundary. Lab sample # 40A11163. Few fine soft oxide concretions; few pores described as wormholes.; discontinuous - phpvsfiid 1259102; patchy - phpvsfiid 1259101; discontinuous - phpvsfiid 1259102; patchy - phpvsfiid 1259101
    B31—102 to 117 centimeters (40.2 to 46.1 inches); dark grayish brown (2.5Y 4/2) and grayish brown (2.5Y 5/2) silty clay loam; 3 percent yellowish brown (10YR 5/4) and 3 percent strong brown (7.5YR 5/6) distinct mottles; weak medium prismatic parts to strong medium angular blocky structure; firm; 21.0 very fine and fine tubular pores; fragments; gradual smooth boundary. Lab sample # 40A11164. Common fine hard oxide concretions; horizon distinctly grayer than above.
    B32—117 to 135 centimeters (46.1 to 53.1 inches); grayish brown (2.5Y 5/2) silty clay loam; 3 percent yellowish brown (10YR 5/4) medium distinct mottles; weak coarse prismatic parts to medium and coarse angular blocky structure; firm; 21.0 very fine and fine tubular pores; 10 percent silt coats on faces of peds; fragments; diffuse wavy boundary. Lab sample # 40A11165. Distinct (1 to 3 inches thick) horizontal band of strong brown (7.5YR 5/6) to 56 inches in places; common coarse oxide concretions.
    B33—135 to 155 centimeters (53.1 to 61.0 inches); 50 percent light olive gray (5Y 6/2) and 50 percent brownish yellow (10YR 6/6) silty clay loam; 3 percent dark brown (10YR 3/3) medium distinct mottles; massive parts to weak coarse angular blocky; firm; 3.0 very fine and fine tubular pores; prominent dark brown (10YR 3/3), moist, clay films on vertical faces of peds and 10 percent clay films in root channels and/or pores; fragments; diffuse smooth boundary. Lab sample # 40A11166. Clay films decrease in color, intensity, and thickness with depth; few fine hard oxide concretions.
    C1—155 to 185 centimeters (61.0 to 72.8 inches); yellowish brown (10YR 5/4) and light olive brown (2.5Y 5/4) silt loam; 3 percent dark brown (10YR 3/3) medium distinct mottles; massive; firm; 21.0 very fine and fine tubular pores; clay films on faces of peds and 10 percent very dark gray (10YR 3/1), moist, clay films in root channels and/or pores; fragments; diffuse wavy boundary. Lab sample # 40A11167. Vertical cleavage; distinct strong brown (7.5YR 5/6) in irregular horizontal bands 1 to 2 inches wide intermixed with light olive gray (5Y 6/2); clay films extended from B33 to about 74 inches; few very fine hard oxide concretions.
    C2—185 to 226 centimeters (72.8 to 89.0 inches); gray (5Y 6/1) silt loam; 3 percent dark brown (10YR 3/3) medium prominent and 21 percent olive brown (2.5Y 4/4) fine faint mottles; massive; firm; 3.0 fine and medium tubular pores; fragments; diffuse wavy boundary. Lab sample # 40A11168. Distinct 2 to 4 inch thick wavy band of strong brown (7.5YR 5/6); distinct krotovina.
    C3—226 to 249 centimeters (89.0 to 98.0 inches); gray (5Y 6/1) silt loam; 3 percent dark brown (10YR 3/3) medium prominent and 21 percent olive brown (2.5Y 4/4) fine faint mottles; massive; firm; 3.0 fine and medium tubular pores; fragments; diffuse wavy boundary. Lab sample # 40A11169. Distinct 2 to 4 inch thick wavy band of strong brown (7.5YR 5/6); distinct krotovina.
    C4—249 to 307 centimeters (98.0 to 120.9 inches); yellowish brown (10YR 5/4) and light olive brown (2.5Y 5/4) and gray (5Y 6/1) silty clay loam; 3 percent dark brown (10YR 3/3) medium distinct mottles; massive; firm; 21.0 very fine tubular and 0.5 fine tubular pores; fragments; clear smooth boundary. Lab sample # 40A11170. Abundant fine hard oxide concretions.
    IIAb—307 to 330 centimeters (120.9 to 129.9 inches); gray (5Y 5/1) and dark grayish brown (10YR 4/2) silty clay loam; massive; firm; fragments. Lab sample # 40A11171. Paleosol derived from till sediments.