*** Primary Characterization Data ***
Pedon ID: 91VI020006( St. John, Virgin Islands )Print Date: Apr 29 2025 7:57AM

Sampled as on Sep 7, 1991:Maho Bay ; Loamy, mixed, isohyperthermic, shallow Typic Haplustoll
Revised to correlated:MAHO BAY ; Loamy, mixed, isohyperthermic, shallow Typic Haplustolls
United States Department of Agriculture
SSL-ProjectCP91VI269   ST JOHN, VIRGIN ISLANDSNatural Resources Conservation Service
-Site IDS1991VI020006   Lat: 18° 22' 13.00" north  Long: 64° 44' 48.99" west  MLRA: 27National Soil Survey Center
-Pedon No. 91P1194Soil Survey Laboratory
-General Methods 1B1A, 2A1, 2BLincoln, Nebraska 68508-3866
LayerHorizonOrig HznDepth (cm)Field Label 1Field Label 2Field Label 3Field TextureLab Texture
 
91P07962AA0-7L SIL
91P07963ABAB7-19L SICL
91P07964BwBw19-33L SICL
Pedon Calculations
Calculation NameResultUnits of Measure
 
CEC Activity, CEC7/Clay, Weighted Average0.94(NA)
Clay, carbonate free, Weighted Average29% wt
Weighted Particles, 0.1-75mm, 75 mm Base13% wt
Volume, >2mm, Weighted Average3% vol
Clay, total, Weighted Average29% wt
LE, Whole Soil, Summed to 1m0cm/m
 
Weighted averages based on control section: 0-33 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
 
91P079620-7ASsil26.757.415.917.230.227.27.43.62.01.61.3--11--1911
91P079637-19ABSsicl28.058.513.517.232.426.17.32.91.61.10.613--104
91P0796419-33BwSsicl30.056.813.219.031.924.96.64.00.61.10.915--126


*** Primary Characterization Data ***
Pedon ID: 91VI020006( St. John, Virgin Islands )Print Date: Apr 29 2025 7:57AM
Sampled As:Maho BayLoamy, mixed, isohyperthermic, shallow Typic Haplustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1194
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
 
91P079620-7AS1.111.240.03623.912.81.0220.120.970.48
91P079637-19ABS1.331.470.03321.212.91.0220.110.940.46
91P0796419-33BwS1.401.530.02920.812.91.0240.110.910.43
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
 
91P079620-7AS4.321.80.10.10.510.100.510.250.09505.2
91P079637-19ABS2.921.80.20.10.500.080.530.240.09484.3
91P0796419-33BwS2.721.80.20.10.520.080.550.240.09501.1
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
 
91P079620-7AS17.55.40.20.723.87.731.526.07692
91P079637-19ABS19.1*6.30.90.226.56.132.626.481100
91P0796419-33BwS19.46.30.60.226.56.432.927.38197

*Extractable Ca may contain Ca from calcium carbonate or gypsum., CEC7 base saturation set to 100.


*** Primary Characterization Data ***
Pedon ID: 91VI020006( St. John, Virgin Islands )Print Date: Apr 29 2025 7:57AM
Sampled As:Maho BayLoamy, mixed, isohyperthermic, shallow Typic Haplustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1194
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 - -)%
 
91P079620-7AS1
91P079637-19ABS3
91P0796419-33BwS2
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
 
91P079620-7AS5.15.65.9
91P079637-19ABS5.36.06.2
91P0796419-33BwS5.15.86.3


*** Primary Characterization Data ***
Pedon ID: 91VI020006( St. John, Virgin Islands )Print Date: Apr 29 2025 7:57AM
Sampled As:Maho BayLoamy, mixed, isohyperthermic, shallow Typic Haplustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1194
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
91P079620.0-7.0AtclyMI 3KK 2 168.4 1.2
91P079637.0-19.0ABtclyMI 3KK 2VR 1MT 1 189.2 1.2
91P0796419.0-33.0BwtclyMI 3KK 2 209.7 1.2

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK KaoliniteMI MicaMT MontmorilloniteVR Vermiculite

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


*** Primary Characterization Data ***
Pedon ID: 91VI020006( St. John, Virgin Islands )Print Date: Apr 29 2025 7:57AM
Sampled As:Maho BayLoamy, mixed, isohyperthermic, shallow Typic Haplustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1194
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
91P079620.0-7.0Acsi 38QZ 37BT 26FP 12FK 11AM 7OT 5
OP 1PR 1GS trPO trMS trZR tr
91P079620.0-7.0Avfs 73QZ 72OW 10BT 7AM 5FK 3PR 2
OP 1FP 1HN trTM trCA tr
91P079637.0-19.0ABcsi 35QZ 32BT 29FK 11FP 10AM 8OT 7
PO 2OP 1MS trZR tr
91P0796419.0-33.0Bwcsi 57QZ 54BT 23AM 8FK 4CL 2OT 2
PO 2MI 2CA 1FP 1PR 1OP 1
GS trGN trTM trZR tr

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

MINERAL INTERPRETATION:
AM AmphiboleBT BiotiteCA CalciteCL ChloriteFK Potassium Feldspar
FP Plagioclase FeldsparGN GarnetGS GlassHN HornblendeMI Mica
MS MuscoviteOP OpaquesOT OtherOW Other Weatherable MineralsPO Plant Opal
PR PyroxeneQZ QuartzTM TourmalineZR Zircon
NSSC SSL Report Creation