IDENTIFIERS

  • Current Taxon Name (Soil Name): Millboro
  • OSD
  • Series Extent
  • User Site ID: S2016SD117008
  • User Pedon ID: S2016SD117008
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 17N0467
  • NCSS Pedon Lab Data NASIS Record ID - 87490
  • Print Date: 5/29/2024

    • 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: 44.2744770
  • Std. Longitude: -100.3294850
  • Datum: WGS84
  • Township: 109N
  • Range: 79W
  • Section: 4
  • PLSS Details: center of E 1/2
  • Map Unit: MoB—Millboro silty clay loam, 3 to 6 percent slopes
  • State: South Dakota
  • County: SD117—Stanley
  • MLRA: 63A—Northern Rolling Pierre Shale Plains
  • Non-MLRA Soil Survey Area: SD117—Stanley County, South Dakota
  • 7.5 Minute USGS Quad: 44100-C3—Pierre, South Dakota

    • PEDON

  • Describers Name: A. Oxford and M. Kuykendall
  • Current Taxonomic Class: Fine, smectitic, mesic Typic Haplusterts
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - Millboro
  • Taxonomic Class - Fine, smectitic, mesic Typic Haplusterts
  • Taxon Kind - series
  • PSC - 8 to 47 cm.
  • Classificaton Date - 10/29/2016
  • Classifier - M. Kuykendall
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - ustic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: clayey residuum weathered from clayey shale
  • Landscape: upland
  • Landform: plain
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: yes

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/21/2016 (actual site observation date)
  • Data Collector: A. Oxford and M. Kuykendall
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - close-grown crop
  • 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

    slickensides

    secondary carbonates

    free carbonates

    secondary carbonates

    gypsum accumulations

    salt accumulations

    redox concentrations

    0—19

    8—47

    47—109

    47—86

    47—100

    109—146

    109—146

    109—146

    109—200

    —-

    —-

    —-

    —-

    —-

    —-

    —-

    —-

    —-
    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

    3.5

    —

    —

    532

    —

    86

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 8 centimeters (0.0 to 3.1 inches); dark grayish brown (10YR 4/2) broken face, very dark grayish brown (10YR 3/2) broken face, moist; silty clay loam; 7 percent sand; 32 percent clay; weak fine granular structure; soft, very friable, moderately sticky, moderately plastic; common (3.0) very fine roots throughout and common (2.0) medium roots throughout and many (5.0) fine roots throughout; many (6.0) very fine and common (3.0) medium and many (6.0) fine pores; fragments; noneffervescent, by hcl, 1n; neutral, pH 6.8, pH indicator solutions; clear smooth boundary. Lab sample # 17N02444; moist when described; observed in pit, large or quarry
    Bt1—8 to 19 centimeters (3.1 to 7.5 inches); dark grayish brown (10YR 4/2) broken face, very dark gray (10YR 3/1) broken face, moist; silty clay; 5 percent sand; 45 percent clay; weak medium platy structure; hard, friable, very sticky, very plastic; common (1.0) very fine roots throughout and common (2.0) fine roots throughout; common (2.0) very fine and common (3.0) fine pores; 5 percent distinct pressure faces on bottom faces of peds and 10 percent distinct clay films on all faces of peds; fragments; noneffervescent, by hcl, 1n; neutral, pH 6.8, pH indicator solutions; clear smooth boundary. Lab sample # 17N02445; moist when described; observed in pit, large or quarry
    Bt2—19 to 47 centimeters (7.5 to 18.5 inches); dark grayish brown (2.5Y 4/2) broken face, very dark grayish brown (2.5Y 3/2) broken face, moist; silty clay; 5 percent sand; 49 percent clay; moderate medium subangular blocky structure; hard, friable, very sticky, very plastic; common (3.0) fine roots throughout; common (2.0) very fine and common (3.0) fine pores; 5 percent distinct pressure faces on all faces of peds and 20 percent prominent clay films on all faces of peds; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.5, pH indicator solutions; gradual wavy boundary. Lab sample # 17N02446; moist when described; observed in pit, large or quarry
    Bkss1—47 to 86 centimeters (18.5 to 33.9 inches); grayish brown (2.5Y 5/2) broken face, dark grayish brown (2.5Y 4/2) broken face, moist; silty clay; 5 percent sand; 55 percent clay; moderate medium prismatic structure; very hard, firm, very sticky, very plastic; common (1.0) very fine roots between peds and common (3.0) fine roots between peds; common (3.0) very fine pores; 10 percent distinct pressure faces on all faces of peds and 15 percent distinct slickensides (pedogenic) on all faces of peds; 20 percent medium prominent irregular extremely weakly coherent cemented carbonate masses with clear boundaries in matrix and 1 percent very fine carbonate, finely disseminated throughout; fragments; slight effervescence, by hcl, 1n; slightly alkaline, pH 7.5, pH indicator solutions; clear wavy boundary. Lab sample # 17N02447; moist when described; observed in pit, large or quarry
    Bkss2—86 to 109 centimeters (33.9 to 42.9 inches); grayish brown (2.5Y 5/2) broken face, very dark grayish brown (2.5Y 3/2) broken face, moist; clay; 5 percent sand; 63 percent clay; weak medium prismatic structure; extremely hard, extremely firm, very sticky, very plastic; common (1.0) very fine roots throughout and common (1.0) fine roots throughout; common (2.0) very fine pores; 10 percent distinct pressure faces on all faces of peds and 15 percent distinct slickensides (pedogenic) on all faces of peds; 1 percent very fine carbonate, finely disseminated throughout; fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.5, pH indicator solutions; clear wavy boundary. Lab sample # 17N02448; moist when described; observed in pit, large or quarry
    BCkyz—109 to 146 centimeters (42.9 to 57.5 inches);, 65 percent dark olive gray (5Y 3/2) broken face and 35 percent olive (5Y 5/4) broken face, moist; stratified stratified silty clay; 5 percent sand; 54 percent clay; weak fine subangular blocky structure; very hard, firm, very sticky, very plastic; common (2.0) very fine roots throughout; common (3.0) very fine pores; 6 percent fine distinct irregular extremely weakly coherent cemented yellowish brown (10YR 5/6) masses of oxidized iron with clear boundaries in matrix; 5 percent fine prominent irregular extremely weakly coherent cemented carbonate masses with clear boundaries in matrix and 4 percent fine prominent threadlike extremely weakly coherent cemented gypsum masses with clear boundaries in matrix and 4 percent fine prominent threadlike weakly coherent cemented gypsum crystals, unspecified with clear boundaries in matrix and 2 percent fine prominent irregular weakly coherent cemented salt crystals with clear boundaries in matrix and 1 percent very fine carbonate, finely disseminated throughout; 8 percent by volume flat subangular weakly coherent cemented 2-?-5 millimeter shale, unspecified fragments observed by visual inspection method; slight effervescence, by hcl, 1n; slightly alkaline, pH 7.5, pH indicator solutions; gradual smooth boundary. Lab sample # 17N02449; moist when described; observed in pit, large or quarry
    Ck—146 to 200 centimeters (57.5 to 78.7 inches);, 85 percent olive (5Y 5/4) broken face and 15 percent dark olive gray (5Y 3/2) broken face, moist; stratified stratified silty clay; 5 percent sand; 53 percent clay; structureless massive; hard, friable, very sticky, very plastic; 1 percent fine distinct irregular extremely weakly coherent cemented yellowish brown (10YR 5/6) masses of oxidized iron with clear boundaries in matrix; 1 percent very fine carbonate, finely disseminated throughout; fragments; slight effervescence, by hcl, 1n; slightly alkaline, pH 7.5, pH indicator solutions. Lab sample # 17N02450; moist when described; observed in pit, large or quarry