IDENTIFIERS

  • Current Taxon Name (Soil Name): Clafork
  • OSD
  • Series Extent
  • User Site ID: 1989MO053058
  • User Pedon ID: 1989MO053058
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M8905358
  • NCSS Pedon Lab Data NASIS Record ID - 26753
  • Print Date: 11/24/2024

    • 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: 38.7436917
  • Std. Longitude: -92.8577500
  • Datum: WGS84
  • Township: T46N
  • Range: R18W
  • Section: 14
  • PLSS Details: 250' W and 200' N of the SE corner
  • Map Unit: 73531—Clafork silt loam, 5 to 8 percent slopes, eroded
  • State: Missouri
  • County: MO053—Cooper
  • MLRA: 112—Cherokee Prairies
  • Non-MLRA Soil Survey Area: MO053—Cooper County, Missouri
  • 7.5 Minute USGS Quad: 38092-F7—Tipton, Missouri

    • PEDON

  • Describers Name: John L. Baker, Greg Caldwell, David Skaer
  • Current Taxonomic Class: Fine, smectitic, mesic Aquollic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Clafork
  • PSC - 18 to 68 cm.
  • Classificaton Date - 9/16/2010
  • Soil Taxonomic Edition - ninth edition
  • Sampled As Information:
  • Soil Name - Clafork
  • Classificaton Date - 11/21/1989
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 37.3 percent of Control section clay


    • SITE

  • Parent Material: loess over residuum weathered from cherty limestone
  • Landscape: upland
  • Hill Slope Profile: backslope
  • Slope Shape Across: concave
  • Slope Shape Down: linear
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/21/1989 (actual site observation date)
  • Surface Cover Properties:
  • 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

    fragic soil properties

    argillic horizon

    0—18

    18—53

    53—152

    119—152

    —-

    —-

    —-

    —-
    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

    6

    —

    —

    252

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); very dark grayish brown (10YR 3/2) exterior silty clay loam; 5 percent sand; 68 percent silt; 27 percent clay; weak very fine granular structure; friable; slow permeability; 3.0 very fine roots; fragments; slightly acid, pH 6.3; abrupt smooth boundary. Lab sample # MU011696; observed in pit, small
    Bt1—18 to 25 centimeters (7.1 to 9.8 inches); brown (10YR 4/3) exterior silty clay loam; 6 percent sand; 55 percent silt; 40 percent clay; moderate very fine subangular blocky structure; firm; 0.8 very fine roots; 2 percent distinct clay films on all faces of peds and 15 percent prominent silt coats; 1 percent fine iron-manganese masses and 2 percent fine prominent yellowish red (5YR 5/6), moist, masses of oxidized iron and 2 percent fine distinct grayish brown (10YR 5/2), moist, iron depletions; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # MU011697; observed in pit, small
    Bt2—25 to 38 centimeters (9.8 to 15.0 inches); 51 percent dark yellowish brown (10YR 4/4) exterior and 49 percent dark grayish brown (10YR 4/2) exterior silty clay; 6 percent sand; 48 percent silt; 46 percent clay; strong fine subangular blocky structure; very firm; 0.8 very fine roots; 30 percent prominent clay films on all faces of peds; 20 percent fine iron-manganese masses and 25 percent fine prominent strong brown (7.5YR 5/8), moist, and yellowish red (5YR 5/8), moist, masses of oxidized iron; fragments; strongly acid, pH 5.5; clear smooth boundary. Lab sample # MU011698; observed in pit, small
    Bt3—38 to 53 centimeters (15.0 to 20.9 inches); 50 percent dark grayish brown (10YR 4/2) exterior and 50 percent yellowish brown (10YR 5/4) exterior silty clay; 2 percent sand; 55 percent silt; 43 percent clay; moderate very fine subangular blocky structure; very firm; 0.8 very fine roots; 18 percent prominent clay films on all faces of peds; 1 percent fine iron-manganese masses and 25 percent fine prominent yellowish red (5YR 5/6), moist, and yellowish brown (10YR 5/8), moist, masses of oxidized iron; fragments; moderately acid, pH 5.9; clear smooth boundary. Lab sample # MU011699; observed in pit, small
    2Ex1—53 to 66 centimeters (20.9 to 26.0 inches); 50 percent yellowish brown (10YR 5/4) exterior and 50 percent grayish brown (10YR 5/2) exterior silty clay loam; 3 percent sand; 67 percent silt; 30 percent clay; weak coarse prismatic parts to weak medium platy structure; firm; 0.8 fine roots; 2 percent prominent clay films on top faces of peds; 1 percent fine iron-manganese masses and 2 percent fine prominent strong brown (7.5YR 5/8), moist, masses of oxidized iron; fragments; neutral, pH 6.8; gradual smooth boundary. Lab sample # MU011700; observed in pit, small
    2Ex2—66 to 94 centimeters (26.0 to 37.0 inches); 50 percent yellowish brown (10YR 5/4) exterior and 50 percent grayish brown (10YR 5/2) exterior silt loam; 5 percent sand; 74 percent silt; 21 percent clay; weak coarse prismatic structure; firm; 0.8 fine roots; 2 percent prominent clay films on vertical faces of peds; 2 percent fine prominent strong brown (7.5YR 5/8), moist, masses of oxidized iron and 2 percent fine iron-manganese masses; fragments; slightly alkaline, pH 7.7; gradual smooth boundary. Lab sample # MU011701; observed in pit, small
    2Ex3—94 to 119 centimeters (37.0 to 46.9 inches); 50 percent dark yellowish brown (10YR 4/4) exterior and 50 percent grayish brown (10YR 5/2) exterior silt loam; 9 percent sand; 76 percent silt; 16 percent clay; weak coarse prismatic structure; firm; 0.8 fine roots; 2 percent prominent clay films on vertical faces of peds and 2 percent prominent silt coats; 2 percent fine iron-manganese masses and 2 percent fine prominent strong brown (7.5YR 5/8), moist, masses of oxidized iron; 3 percent by volume indurated 2-40-75 millimeter chert fragments; slightly alkaline, pH 7.8; clear smooth boundary. Lab sample # MU011702; observed in pit, small
    3Btx—119 to 152 centimeters (46.9 to 59.8 inches); 50 percent yellowish brown (10YR 5/4) exterior and 50 percent grayish brown (10YR 5/2) exterior extremely gravelly silt loam; 15 percent sand; 71 percent silt; 14 percent clay; weak fine subangular blocky structure; firm; 0.8 very fine roots; 2 percent prominent clay films on all faces of peds; 2 percent fine iron-manganese masses; 10 percent by volume flat indurated 75-150-250 millimeter chert fragments and 55 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; slightly alkaline, pH 7.8. Lab sample # MU011703; observed in pit, small