*** Primary Characterization Data ***
Pedon ID: 91VI020007( St. John, Virgin Islands )Print Date: Apr 23 2025 8:08AM

Sampled as on Sep 9, 1991:Descalabrado ; Clayey, mixed, isohyperthermic, shallow Typic Argiustoll
Revised to correlated:Susannaberg ; Clayey, vermiculitic, isohyperthermic, shallow Typic Haplustolls
United States Department of Agriculture
SSL-ProjectCP91VI269   ST JOHN, VIRGIN ISLANDSNatural Resources Conservation Service
-Site IDS1991VI020007   Lat: 18° 21' 10.00" north  Long: 64° 45' 29.99" west  MLRA: 27National Soil Survey Center
-Pedon No. 91P1195Soil Survey Laboratory
-General Methods 1B1A, 2A1, 2BLincoln, Nebraska 68508-3866
LayerHorizonOrig HznDepth (cm)Field Label 1Field Label 2Field Label 3Field TextureLab Texture
 
91P07965AA0-9CL C
91P07966Bt1Bt19-27C C
91P07967Bt2Bt227-45C C
91P07968CrtCRt45-60C
Pedon Calculations
Calculation NameResultUnits of Measure
 
CEC Activity, CEC7/Clay, Weighted Average0.88(NA)
Clay, carbonate free, Weighted Average56% wt
Weighted Particles, 0.1-75mm, 75 mm Base25% wt
Volume, >2mm, Weighted Average14% vol
Clay, total, Weighted Average56% wt
 
Weighted averages based on control section: 9-45 cm
PSDA  &  Rock Fragments-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18-
 
(- - - - - Total - - - - - -)(- - Clay - - -)(- - - - Silt - - - - -)(- - - - - - - - - - - - Sand - - - - - - - - - - - -)( Rock Fragments   (mm) )
LabClaySiltSandFineCO3FineCoarseVFFMCVC(- - - - - - - - Weight - - - - - - - -)>2 mm
Text-<.002.05<<.002.02.05.10.25.512520.1-wt %
Depthure.002-.05-2.0002.002-.02-.05-.10-.25-.50-1-2-5-20-7575whole
Layer(cm)HorzPrep(- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -)(- - - - - - - % of <75mm - - - - - -)soil
3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3B13B13B1
 
91P079650-9ASc49.529.021.539.320.88.23.94.22.63.87.061263724
91P079669-27Bt1Sc54.328.717.044.020.28.54.53.93.33.22.12572514
91P0796727-45Bt2Sc57.226.716.145.819.17.64.13.32.32.73.72762536
91P0796845-60CrtSc59.625.514.948.317.97.64.54.51.62.12.228113091


*** Primary Characterization Data ***
Pedon ID: 91VI020007( St. John, Virgin Islands )Print Date: Apr 23 2025 8:08AM
Sampled As:DescalabradoClayey, mixed, isohyperthermic, shallow Typic Argiustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1195
Bulk Density  &  Moisture-1--2--3--4--5--6--7--8--9--10--11--12--13--14-
 
(Bulk Density)Cole(- - - - - - - - - - - Water Content - - - - - - - - - - -)( Air Dry-Oven Dry )WRDAggst
33OvenWhole6103315001500 kPa(- - - - Ratio - - - -)WholeStabl(- - Ratio/Clay - -)
DepthkPaDrySoilkPakPakPakPaMoistCorrectedSoil2-0.5mm CEC71500 kPa
Layer(cm)HorzPrep (- - - g cm-3 - - -) (- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -) cm3 cm-3%
4A1d4A1h4B1c3C2a1a3D14C18D18D1
 
91P079650-9AS26.31.0491.110.53
91P079669-27Bt1S26.41.0490.920.49
91P0796727-45Bt2S1.181.750.10538.725.51.0520.120.840.45
91P0796845-60CrtS26.31.0540.790.44
Water Content-1--2--3--4--5--6--7--8--9--10--11--12--13-
 
(- - Atterberg - -)(- - - - - Bulk Density - - - - -)(- - - - - - - - - - - - - - - - - - - - - - - Water Content - - - - - - - - - - - - - - - - - - - - -)
(- - - Limits - - -)FieldReconReconFieldRecon(- - - - - - - - - - - - - - Sieved Samples - - - - - - - - - - - - -)
LLPI33Oven3361033100200500
DepthkPaDrykPakPakPakPakPakPakPa
Layer(cm)HorzPreppct <0.4mm(- - - - - - - - g cm-3 - - - - - - -)(- - - - - - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - - - - - - -)
3C1e1a
 
91P079650-9AS34.8
91P079669-27Bt1S32.7
91P0796727-45Bt2S32.6
91P0796845-60CrtS33.9
Carbon  &  Extractions-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18--19-
 
(- - - - - Total - - - - -)EstOCC/N(- - - Dith-Cit Ext - - -)(- - - - - - Ammonium Oxalate Extraction - - - - - -)(- - - Na Pyro-Phosphate - - -)
DepthCNSOC(WB)RatioFeAlMnAl+½FeODOEFeAlSiMnCFeAlMn
Layer(cm)HorzPrep(- - - - - - - - - - % of <2 mm - - - - - - - - - -)(- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -)mg kg-1(- - - - - - % of < 2mm - - - - -)
6A1c6C2b6G7a6D2a8J6C9b6G12b6V2b6D5b
 
91P079650-9AS4.911.50.20.20.650.090.720.290.131477.4
91P079669-27Bt1S2.691.70.20.20.740.090.830.320.142360.2
91P0796727-45Bt2S1.411.80.20.20.560.080.530.290.151685.3
91P0796845-60CrtS0.881.90.20.10.690.090.910.240.161149.8


*** Primary Characterization Data ***
Pedon ID: 91VI020007( St. John, Virgin Islands )Print Date: Apr 23 2025 8:08AM
Sampled As:DescalabradoClayey, mixed, isohyperthermic, shallow Typic Argiustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1195
CEC  &  Bases-1--2--3--4--5--6--7--8--9--10--11--12--13--14-
 
(- - - - - - NH4OAC Extractable Bases - - - - -)CEC8CEC7ECEC(- - - - Base - - - -)
SumAcid-ExtrKClSumNH4BasesAl(- Saturation -)
DepthCaMgNaKBasesityAlMnCatsOAC+AlSatSumNH4OAC
Layer(cm)HorzPrep(- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -)mg kg-1(- - - - cmol(+) kg-1 - - -)(- - - - - - - - % - - - - - - - -)
6N2e6O2d6P2b6Q2b6H5a5A3a5A8b5C35C1
 
91P079650-9AS40.312.80.40.654.17.561.655.08898
91P079669-27Bt1S31.313.10.50.445.38.553.849.78491
91P0796727-45Bt2S29.613.50.90.444.47.351.748.38692
91P0796845-60CrtS27.113.01.10.441.68.049.647.18488
Salt-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18--19--20-
 
(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Extracted From Saturated Paste - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)1:2
TotalElecElecExch
DepthCaMgNaKCO3HCO3FClPO4BrOACSO4NO2NO3H2OSaltsCondCondNaSAR
Layer(cm)HorzPrep(- - - - - mmol(+) L-1 - - - - -)(- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -)(- - - - % - - - -)(- - dS m-1 - -)%
 
91P079650-9AS1
91P079669-27Bt1S1
91P0796727-45Bt2S2
91P0796845-60CrtS2
pH  &  Carbonates-1--2--3--4--5--6--7--8--9--10--11-
 
(- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -)(- - Carbonate - -)(- - Gypsum - - -)
CaCl2As CaCO3As CaSO4*2H2OResist
Depth0.01MH2OSat<2mm<20mm<2mm<20mmohms
Layer(cm)HorzPrepKCl1:21:1PasteOxidNaF(- - - - - - - - - - - - % - - - - - - - - - - -)cm-1
4C1a2a34C1a2a4C1a2a
 
91P079650-9AS5.86.46.6
91P079669-27Bt1S5.26.06.4
91P0796727-45Bt2S5.05.96.5
91P0796845-60CrtS4.75.86.4


*** Primary Characterization Data ***
Pedon ID: 91VI020007( St. John, Virgin Islands )Print Date: Apr 23 2025 8:08AM
Sampled As:DescalabradoClayey, mixed, isohyperthermic, shallow Typic Argiustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1195
Phosphorus-1--2--3--4--5--6--7--8--9--10--11--12-
 
(- - - - - - - - - - - - - - - - - - - - - - - Phosphorus - - - - - - - - - - - - - - - - - - - - -)KCl
MelanicNZAcidAnion Exch ResinBrayBrayOlsenH2OCitricMehlichExtr
DepthIndexOxalAvailableCapacity12AcidIIINO3
Layer(cm)HorzPrep%(- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -)
6S3
 
91P079650-9AS1.0
91P079669-27Bt1S--
91P0796727-45Bt2Str
91P0796845-60CrtS--


*** Primary Characterization Data ***
Pedon ID: 91VI020007( St. John, Virgin Islands )Print Date: Apr 23 2025 8:08AM
Sampled As:DescalabradoClayey, mixed, isohyperthermic, shallow Typic Argiustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1195
Clay Mineralogy (<.002 mm)-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18-
X-RayThermalElementalEGMEInter
SiO2Al2O3Fe2O3MgOCaOK2ONa2ORetnpreta
DepthFract7A2i 7C3 tion
Layer(cm)Horzion( - - - - - - - - - peak size - - - - - - - - - - )(- - - - - - - - - % - - - - - - - - - -)(- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -)mg g-1
91P079650.0-9.0AtclyMT 3VR 3KK 2 198.4 0.4
91P079669.0-27.0Bt1tclyMT 3VR 3KK 2 208.7 0.3
91P0796727.0-45.0Bt2tclyMT 3VR 3KK 2MC 1 219.0 0.3

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK KaoliniteMC Montmorillonite-ChloriteMT MontmorilloniteVR Vermiculite

RELATIVE PEAK SIZE:5 Very Large4 Large3 Medium2 Small1 Very Small6 No Peaks


*** Primary Characterization Data ***
Pedon ID: 91VI020007( St. John, Virgin Islands )Print Date: Apr 23 2025 8:08AM
Sampled As:DescalabradoClayey, mixed, isohyperthermic, shallow Typic Argiustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1195
Sand - Silt Mineralogy (2.0-0.002 mm)-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18-
X-RayThermalOpticalEGMEInter
Tot ReGrain CountRetnpreta
DepthFract 7B1a2 tion
Layer(cm)Horzion( - - - - - - - - peak size - - - - - - - - - )(- - - - - - - - % - - - - - - - - - -)(- - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - -) mg g-1
91P0796727.0-45.0Bt2csi 10PR 43AM 42QZ 10OT 3MI 1PO tr
CD trZR trOP trGS trGN tr
91P0796727.0-45.0Bt2vfs 7PR 58OW 29QZ 6FP 5OP 1AM 1
FK trZR trGN tr

FRACTION INTERPRETATION:
csi - Coarse Silt 0.02-0.05 mmvfs - Very Fine Sand 0.05-0.1 mm

MINERAL INTERPRETATION:
AM AmphiboleCD Chert (ChalcedonyFK Potassium FeldsparFP Plagioclase FeldsparGN Garnet
GS GlassMI MicaOP OpaquesOT OtherOW Other Weatherable Minerals
PO Plant OpalPR PyroxeneQZ QuartzZR Zircon
NSSC SSL Report Creation