IDENTIFIERS

  • Current Taxon Name (Soil Name): SION
  • OSD
  • Series Extent
  • User Site ID: S1992VI010001
  • User Pedon ID: 92VI010001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 92P0459
  • NCSS Pedon Lab Data NASIS Record ID - 64698
  • Print Date: 11/12/2024

    • 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: 17.7355556
  • Std. Longitude: -64.7794418
  • Datum: WGS84
  • Location Description: Approximately 500 feet E of the LaReine ruins on toe slope adjacent to nearly level upland gut.
  • State: Virgin Islands
  • MLRA: 27—Fallon-Lovelock Area
  • Non-MLRA Soil Survey Area: VI690—Virgin Islands of the United States

    • PEDON

  • Describers Name: J.R. Davis, W.C. Lynn
  • Current Taxonomic Class: Fine-loamy, carbonatic, isohyperthermic Typic Calciustolls
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - SION
  • PSC - 25 to 100 cm.
  • Classificaton Date - 9/15/2005
  • Moisture Class - ustic
  • Sampled As Information:
  • Soil Name - Sion
  • Taxonomic Class - Fine-loamy, carbonatic, isohyperthermic Typic Calc
  • Taxon Kind - series
  • Classificaton Date - 3/1/1992
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: marine terrace
  • Hill Slope Profile: toeslope
  • Slope Shape Across: concave
  • Runoff: very low
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments: 1.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/1/1992 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - artificial cover
  • Site Obs. Cover Kind 2 - urban and built-up
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    calcic horizon

    0—18

    18—163

    —-

    —-
    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

    46

    23

    49

    —

    110

    1092

    —

    —

    26.7

    27.8

    25.6

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 18 centimeters (0.0 to 7.1 inches);, dark brown (10YR 3/3), moist; clay; 3 percent dark yellowish brown (10YR 3/4) fine and medium faint mottles; moderate medium and coarse granular structure; slightly hard, moderately sticky, slightly plastic; moderately slow permeability; 21.0 fine and medium roots throughout; 21.0 medium and coarse high-continuity vesicular and tubular pores; 30 percent distinct very pale brown (10YR 7/3) carbonate coats on faces of peds and in pores and 75 percent faint dark brown (10YR 3/3) organic stains on faces of peds and in pores; 1 percent medium and coarse cylindrical carbonate threads and 21 percent medium and coarse cylindrical worm casts and 3 percent medium and coarse spherical worm casts; 5 percent by volume subangular 2-39-75 millimeter igneous, unspecified fragments; strong effervescence, by hcl, unspecified; clear wavy boundary. Lab sample # 92P02781; dry when described;. Thin section - finely crystalline carbonate matrix.; continuous - phpvsfiid 174536; discontinuous - phpvsfiid 174537; continuous - phpvsfiid 174536; discontinuous - phpvsfiid 174537
    ABk—18 to 38 centimeters (7.1 to 15.0 inches);, dark yellowish brown (10YR 3/4), moist; clay; 3 percent dark brown (10YR 3/3) fine and medium faint and 3 percent dark yellowish brown (10YR 4/4) fine and medium faint mottles; strong medium subangular blocky structure; hard, moderately sticky, moderately plastic; moderately slow permeability; 21.0 fine roots throughout; 21.0 medium and coarse high-continuity vesicular and tubular pores; 30 percent distinct very pale brown (10YR 7/3) carbonate coats on faces of peds and in pores and 75 percent faint dark brown (10YR 3/3) organic stains on faces of peds and in pores; 1 percent medium and coarse cylindrical carbonate threads and 21 percent medium and coarse cylindrical worm casts and 3 percent medium and coarse spherical insect casts; 5 percent by volume subangular 2-39-75 millimeter igneous, unspecified fragments; strong effervescence, by hcl, unspecified; clear wavy boundary. Lab sample # 92P02782; dry when described;. Thin section - finely crystalline carbonate matrix; shell and coral fragments.; continuous - phpvsfiid 174538; discontinuous - phpvsfiid 174539; continuous - phpvsfiid 174538; discontinuous - phpvsfiid 174539
    BCk—38 to 53 centimeters (15.0 to 20.9 inches);, dark yellowish brown (10YR 4/4), moist; clay loam; 3 percent yellowish brown (10YR 5/4) fine and medium faint and 3 percent very pale brown (10YR 8/2) fine and medium prominent mottles; strong coarse subangular blocky structure; hard, moderately sticky, slightly plastic; moderately slow permeability; 3.0 fine roots between peds and 3.0 coarse roots between peds; 3.0 medium and coarse high-continuity continuous tubular and 21.0 medium and coarse high-continuity vesicular and tubular pores; 75 percent faint dark brown (10YR 3/3) organic stains on faces of peds and in pores and 75 percent distinct very pale brown (10YR 8/2) carbonate coats on faces of peds and in pores; 21 percent medium and coarse cylindrical carbonate threads and 3 percent medium and coarse cylindrical worm casts and 3 percent medium and coarse spherical insect casts; 5 percent by volume subangular 2-39-75 millimeter igneous, unspecified fragments; violent effervescence, by hcl, unspecified; abrupt wavy boundary. Lab sample # 92P02783; dry when described;. Thin section - finely crystalline carbonate matrix; coral and shell fragments; inclusions (clasts) of even finer crystalline carbonate.; continuous - phpvsfiid 174540; continuous - phpvsfiid 174541; continuous - phpvsfiid 174540; continuous - phpvsfiid 174541
    CBk1—53 to 89 centimeters (20.9 to 35.0 inches);, very pale brown (10YR 7/4), moist; loam; 3 percent very pale brown (10YR 8/3) fine and medium faint and 3 percent very pale brown (10YR 8/2) fine and medium prominent mottles; massive; slightly hard, very sticky, slightly plastic; moderately slow permeability; 0.5 fine roots between peds; 3.0 medium and coarse moderate-continuity vesicular and tubular pores; 30 percent distinct dark yellowish brown (10YR 4/4) organic stains in root channels and/or pores and 75 percent faint very pale brown (10YR 8/2) carbonate coats throughout; 21 percent medium and coarse cylindrical carbonate threads and 1 percent medium and coarse cylindrical worm casts and 1 percent medium and coarse spherical insect casts; 5 percent by volume subangular 2-39-75 millimeter igneous, unspecified fragments; violent effervescence, by hcl, unspecified; clear smooth boundary. Lab sample # 92P02784; dry when described;. Thin section - very fine crystalline carbonate matrix (fine silt); inclusions of more coarsely crystalline carbonate.; discontinuous - phpvsfiid 174542; continuous - phpvsfiid 174543; discontinuous - phpvsfiid 174542; continuous - phpvsfiid 174543
    CBk2—89 to 130 centimeters (35.0 to 51.2 inches);, yellow (10YR 7/6), moist; silty clay loam; 3 percent very pale brown (10YR 7/4) fine and medium faint and 21 percent very pale brown (10YR 8/2) fine and medium prominent mottles; massive; slightly hard, very sticky, slightly plastic; moderately slow permeability; 0.5 fine roots between peds; 3.0 fine and medium moderate-continuity vesicular and tubular pores; 30 percent distinct dark yellowish brown (10YR 4/4) organic stains in root channels and/or pores and 75 percent faint very pale brown (10YR 8/2) carbonate coats throughout; 21 percent fine and medium cylindrical carbonate threads and 1 percent fine and medium cylindrical worm casts and 1 percent fine and medium spherical insect casts; 5 percent by volume subangular 2-39-75 millimeter igneous, unspecified fragments; violent effervescence, by hcl, unspecified; clear smooth boundary. Lab sample # 92P02785; dry when described;. Thin section - very finely crystalline carbonate matrix (fine silt); inclusions of more coarsely crystalline carbonate.; discontinuous - phpvsfiid 174544; continuous - phpvsfiid 174545; discontinuous - phpvsfiid 174544; continuous - phpvsfiid 174545
    C—130 to 163 centimeters (51.2 to 64.2 inches);, brownish yellow (10YR 6/6), moist; silty clay loam; 3 percent yellow (10YR 7/6) fine and medium faint and 21 percent very pale brown (10YR 8/2) fine and medium prominent mottles; massive; slightly hard, slightly sticky, slightly plastic; moderately slow permeability; 0.5 fine roots in cracks; 21.0 very fine and fine moderate-continuity vesicular pores; 10 percent distinct dark yellowish brown (10YR 4/4) organic stains in root channels and/or pores and 75 percent faint very pale brown (10YR 8/2) carbonate coats throughout; 3 percent fine and medium cylindrical carbonate threads and 1 percent fine and medium cylindrical worm casts and 1 percent fine and medium spherical insect casts; 5 percent by volume subangular 2-39-75 millimeter igneous, unspecified fragments; violent effervescence, by hcl, unspecified. Lab sample # 92P02786; dry when described;. discontinuous - phpvsfiid 174546; continuous - phpvsfiid 191399; discontinuous - phpvsfiid 174546; continuous - phpvsfiid 191399