IDENTIFIERS

  • Current Taxon Name (Soil Name): Pactola
  • OSD
  • Series Extent
  • User Site ID: S2005SD081-002
  • User Pedon ID: S05SD081-001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 05N0380
  • NCSS Pedon Lab Data NASIS Record ID - 17619
  • Print Date: 12/4/2024

    • 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: 44.3550262
  • Std. Longitude: -103.7891083
  • Datum: WGS84
  • Township: 5N
  • Range: 3E
  • Section: 32
  • PLSS Details: About 1360 feet south and 410 feet east of the northwest corner of section
  • Location Description: Site is just west of the western-most development in the City of Lead.
  • Map Unit: 105F—Pactola-Buska channery loams, 20 to 60 percent slopes
  • State: South Dakota
  • County: SD081—Lawrence
  • MLRA: 62—Black Hills
  • Non-MLRA Soil Survey Area: SD081—Lawrence County, South Dakota

    • PEDON

  • Describers Name: Jim Westerman
  • Current Taxonomic Class: Loamy-skeletal, mixed, superactive, frigid Haplic Glossudalfs
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - Pactola
  • Taxonomic Class - Loamy-skeletal, mixed, superactive, frigid Haplic Glossudalfs
  • PSC - 26 to 89 cm.
  • Classificaton Date - 10/28/2004
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Geomorphic Component Mountains: mountainflank, center third
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Wet Soil Moisture Duration: 0
  • Bedrock: at 200cm
  • Geology: Ellison formation of the Metamorphic group.
  • Surface Fragments: 1.00 percent nonflat subangular 20- to 250-millimeter quartzite, 4.00 percent flat angular indurated 20- to 380-millimeter schist, unspecified,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/28/2004 (actual site observation date)
  • Air Photo ID: 37
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
  • Current Air Temp - 13
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    albic horizon

    glossic horizon

    argillic horizon

    6—26

    26—48

    26—89

    —20—

    —22—

    —63—
    Site Soil Temperature
    Site Obs. Date Depth Sensor Kind Temperature
    cm C

    10/28/2004

    50

    —

    5
    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

    44

    —

    —

    1732

    —

    270

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oa—0 to 1 centimeters (0.0 to 0.4 inches); very dark brown (10YR 2/2) rubbed highly decomposed plant material; low excavation difficulty; fragments; abrupt smooth boundary.; slightly dry when described; observed in cut
    A1—1 to 6 centimeters (0.4 to 2.4 inches); very dark grayish brown (10YR 3/2) crushed, dark grayish brown (10YR 4/2) crushed, dry; channery loam; moderate fine granular structure; soft, friable, noncoherent, nonsticky, slightly plastic; low toughness; moderately rapid permeability; low excavation difficulty; 8.0 very fine roots throughout and 1.0 medium roots throughout and 2.0 fine roots throughout; 2 percent by volume nonflat subangular indurated 5-40-75 millimeter quartzite fragments and 14 percent by volume flat angular indurated 5-75-150 millimeter schist, unspecified fragments; noneffervescent, by hcl, unspecified; clear wavy boundary.; moist when described; observed in cut
    E—6 to 26 centimeters (2.4 to 10.2 inches); brown (7.5YR 5/2) crushed, pinkish gray (7.5YR 6/2) crushed, dry; channery loam; weak medium platy parts to weak fine subangular blocky structure; soft, very friable, noncoherent, nonsticky, slightly plastic; moderate permeability; low excavation difficulty; 8.0 very fine roots throughout and 1.0 medium roots throughout and 3.0 fine roots throughout; 3 percent by volume nonflat subangular indurated 5-40-75 millimeter quartzite fragments and 17 percent by volume flat subangular indurated 5-75-150 millimeter schist, unspecified fragments; noneffervescent, by hcl, unspecified; clear wavy boundary. Lab sample # 05N02134; moist when described; observed in cut
    B/Et—26 to 48 centimeters (10.2 to 18.9 inches); variegated 70 percent brown (7.5YR 5/4) crushed and 30 percent brown (7.5YR 5/2) crushed, 70 percent light brown (7.5YR 6/4) crushed and 30 percent pinkish gray (7.5YR 6/2) crushed, dry; very channery silty clay loam; moderate fine subangular blocky, and weak medium subangular blocky structure; slightly hard, friable, noncoherent, moderately sticky, moderately plastic; moderate permeability; moderate excavation difficulty; 5.0 very fine roots around fragments and 0.5 medium roots around fragments and 2.0 fine roots around fragments; 5 percent distinct reddish brown (5YR 5/3), moist, clay films on bottom of rock fragments and 35 percent faint reddish brown (5YR 5/3), moist, clay films on all faces of peds; 10 percent by volume nonflat subangular indurated 75-170-250 millimeter schist, unspecified fragments and 25 percent by volume flat subangular indurated 5-75-150 millimeter schist, unspecified fragments; noneffervescent, by hcl, unspecified; clear irregular boundary. Lab sample # 05N02135; slightly moist when described; observed in cut. patchy - phpvsfiid 326355; patchy - phpvsfiid 326356; patchy - phpvsfiid 326355; patchy - phpvsfiid 326356
    Bt1—48 to 68 centimeters (18.9 to 26.8 inches); reddish brown (5YR 4/4) crushed, reddish brown (5YR 5/4) crushed, dry; very channery silty clay loam; moderate fine angular blocky, and weak medium angular blocky structure; hard, friable, noncoherent, moderately sticky, moderately plastic; moderate permeability; high excavation difficulty; 2.0 very fine roots around fragments and 0.2 medium roots around fragments and 2.0 fine roots around fragments; 3 percent prominent dark brown (7.5YR 3/2), moist, organoargillans on surfaces along root channels and 75 percent distinct dark reddish brown (5YR 3/3), moist, clay films on all faces of peds; 10 percent by volume nonflat subangular indurated 75-170-250 millimeter schist, unspecified fragments and 50 percent by volume flat subangular indurated 5-75-150 millimeter schist, unspecified fragments; noneffervescent, by hcl, unspecified; clear wavy boundary. Lab sample # 05N02136; slightly moist when described; observed in cut. patchy - phpvsfiid 326357; continuous - phpvsfiid 326358; patchy - phpvsfiid 326357; continuous - phpvsfiid 326358
    Bt2—68 to 89 centimeters (26.8 to 35.0 inches); dark reddish brown (5YR 3/4) crushed, reddish brown (5YR 5/4) crushed, dry; very channery silty clay loam; moderate fine angular blocky, and moderate medium angular blocky structure; hard, friable, noncoherent, slightly sticky, moderately plastic; moderate permeability; high excavation difficulty; 2.0 very fine roots around fragments and 0.1 medium roots around fragments and 2.0 fine roots around fragments; 25 percent distinct dark reddish brown (5YR 3/2), moist, clay films on bottom of rock fragments and 60 percent distinct dark reddish brown (5YR 3/3), moist, clay films on all faces of peds; 50 percent by volume flat subangular indurated 5-75-150 millimeter schist, unspecified fragments; noneffervescent, by hcl, unspecified; gradual irregular boundary. Lab sample # 05N02137; slightly moist when described; observed in cut. patchy - phpvsfiid 326359; continuous - phpvsfiid 326360; patchy - phpvsfiid 326359; continuous - phpvsfiid 326360
    Azb—89 to 107 centimeters (35.0 to 42.1 inches); dark brown (7.5YR 3/2) crushed, brown (7.5YR 4/2) crushed, dry; channery silt loam; weak fine subangular blocky, and weak medium subangular blocky structure; slightly hard, friable, noncoherent, nonsticky, slightly plastic; moderately rapid permeability; moderate excavation difficulty; 2.0 very fine roots throughout and 1.0 fine roots throughout; 10 percent medium prominent irregular noncoherent cemented root sheaths with diffuse boundaries in matrix; 10 percent by volume flat subangular moderately coherent cemented 5-30-75 millimeter schist, mica fragments and 15 percent by volume flat subangular indurated 5-75-150 millimeter schist, unspecified fragments; noneffervescent, by hcl, unspecified; gradual irregular boundary.; slightly dry when described; observed in cut
    Cb—107 to 125 centimeters (42.1 to 49.2 inches); brown (7.5YR 4/3) crushed, brown (7.5YR 5/3) crushed, dry; very channery loam; massive; slightly hard, friable, noncoherent, slightly sticky, slightly plastic; moderate permeability; high excavation difficulty; 1.0 very fine roots throughout and 1.0 fine roots throughout; 5 percent by volume flat angular indurated 150-250-380 millimeter schist, unspecified fragments and 45 percent by volume flat subangular indurated 5-75-150 millimeter schist, unspecified fragments; noneffervescent, by hcl, unspecified.; slightly dry when described; observed in auger, bucket