IDENTIFIERS

  • Current Taxon Name (Soil Name): Darwin
  • OSD
  • Series Extent
  • User Site ID: 1990MO019011
  • User Pedon ID: 1990MO019011
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9001911
  • NCSS Pedon Lab Data NASIS Record ID - 33520
  • Print Date: 5/20/2024

    • 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: 38.8313115
  • Std. Longitude: -92.4147284
  • Datum: WGS84
  • Range: R14W
  • Section: 14
  • Location Description: 375 feet south and 3400 feet east of the NW cor. Sec. 14, T. 47N., R. 14W.
  • State: Missouri
  • County: MO019—Boone
  • MLRA: 115—Central Mississippi Valley Wooded Slopes

    • PEDON

  • Describers Name: F.J. Young S.F. Miller
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Darwin
  • PSC - 25 to 100 cm.
  • Classificaton Date - 4/26/1990
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium
  • Landform: flood plain
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: negligible
  • Drainage Class: poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/26/1990 (actual site observation date)
  • Air Photo ID: 41
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop 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

    mollic epipedon

    0—36

    —-
    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

    0

    —

    —

    —

    —

    914

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); black (10YR 2/1), dark grayish brown (10YR 4/2), dry; silty clay; strong medium subangular blocky, and weak fine granular structure; firm; fragments; slightly alkaline, pH 7.5, hellige-truog; gradual smooth boundary. Lab sample # MU036974
    A1—23 to 36 centimeters (9.1 to 14.2 inches); very dark gray (10YR 3/1) silty clay; strong fine and medium subangular blocky structure; firm; black (10YR 2/1) on faces of peds; fragments; slightly alkaline, pH 7.5, hellige-truog; abrupt smooth boundary. Lab sample # MU036975
    C1—36 to 48 centimeters (14.2 to 18.9 inches); very dark gray (10YR 3/1) and very dark grayish brown (10YR 3/2) stratified stratified silty clay loam; 10 percent dark grayish brown (10YR 4/2) fine mottles; strong very fine subangular blocky, and massive; friable; 1 percent fine strong brown (7.5YR 4/6) masses of oxidized iron; fragments; slight effervescence; slightly alkaline, pH 7.7, hellige-truog; abrupt smooth boundary. Lab sample # MU036976. (Note: The mottles and the massive structure are found in the VFSL strata. The subangular blocky structure is found in the SICL strata.)
    Ab1—48 to 64 centimeters (18.9 to 25.2 inches); very dark gray (10YR 3/1) silty clay; strong medium angular blocky structure; firm; black (5Y 2/1) on faces of peds; 1 percent fine red (2.5YR 4/6) masses of oxidized iron between peds; fragments; neutral, pH 7.3, hellige-truog; clear smooth boundary. Lab sample # MU036977
    Ab2—64 to 89 centimeters (25.2 to 35.0 inches); dark gray (10YR 4/1) silty clay; 1 percent grayish brown (10YR 5/2) fine mottles; strong fine subangular blocky, and moderate very fine granular structure; firm; very dark gray (10YR 3/1) on faces of peds; fragments; slightly alkaline, pH 7.5, hellige-truog; clear smooth boundary. Lab sample # MU036978
    Ab3—89 to 104 centimeters (35.0 to 40.9 inches); very dark grayish brown (10YR 3/2) silty clay; strong medium subangular blocky structure; firm; 15 percent very dark gray (10YR 3/1) on faces of peds; 1 percent fine strong brown (7.5YR 4/6) masses of oxidized iron; fragments; slight effervescence; slightly alkaline, pH 7.6, hellige-truog; clear smooth boundary. Lab sample # MU036979
    2C1—104 to 127 centimeters (40.9 to 50.0 inches); dark grayish brown (10YR 4/2) stratified stratified silt loam to silty clay loam; weak very fine platy, and moderate coarse subangular blocky structure; friable; 15 percent very dark grayish brown (10YR 3/2) on faces of peds; 1 percent fine strong brown (7.5YR 4/6) masses of oxidized iron; fragments; slight effervescence; slightly alkaline, pH 7.8, hellige-truog; abrupt smooth boundary. Lab sample # MU036980. (Note: The platy structure is in the SIL strata and the subangular blocky structure is in the SICL strata.)
    2C2—127 to 152 centimeters (50.0 to 59.8 inches); grayish brown (2.5Y 5/2) silt loam; weak very fine platy structure; loose; fragments; violent effervescence; moderately alkaline, pH 7.9, hellige-truog. Lab sample # MU036981