*** Primary Characterization Data ***
Pedon ID: 91MT015831( Chouteau, Montana )Print Date: Feb 17 2025 7:30AM

Sampled as on Aug 30, 1991:Eaglecreek
Revised to :
United States Department of Agriculture
SSL-ProjectRP92MT053   CHOUTEAU COUNTYNatural Resources Conservation Service
-Site IDS1991MT015831   Lat: 48° 7' 1.00" north  Long: 109° 44' 11.00" westNational Soil Survey Center
-Pedon No. 92P0254Soil Survey Laboratory
-General Methods 1B1A, 2A1, 2BLincoln, Nebraska 68508-3866
LayerHorizonOrig HznDepth (cm)Field Label 1Field Label 2Field Label 3Field TextureLab Texture
 
92P01688AA0-10L L
92P01689EE10-18L L
92P01690Bt1Bt118-43CL SL
92P01691Bt2Bt243-61SCL SL
92P01692CrCR61-84COSL
Pedon Calculations
Calculation NameResultUnits of Measure
 
CEC Activity, CEC7/Clay, Weighted Average2.22(NA)
Clay, carbonate free, Weighted Average14% wt
Weighted Particles, 0.1-75mm, 75 mm Base56% wt
Volume, >2mm, Weighted Average8% vol
Clay, total, Weighted Average14% wt
 
Weighted averages based on control section: 18-61 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
3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3B13B13B1
 
92P016880-10ASl17.437.245.418.718.512.013.810.36.72.653--398
92P0168910-18ESl19.533.047.516.916.111.514.011.08.12.962--418
92P0169018-43Bt1Ssl14.924.660.512.512.111.215.714.713.65.3124--5716
92P0169143-61Bt2Ssl13.424.662.012.811.813.017.214.811.55.592--5511
92P0169261-84CrGPcosl7.621.471.011.99.510.518.117.218.07.2


*** Primary Characterization Data ***
Pedon ID: 91MT015831( Chouteau, Montana )Print Date: Feb 17 2025 7:30AM
Sampled As:Eaglecreek
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0254
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%
3C2a1a3D18D18D1
 
92P016880-10AS18.01.0292.111.03
92P0168910-18ES13.41.0281.620.69
92P0169018-43Bt1S10.91.0282.020.73
92P0169143-61Bt2S11.71.0312.500.87
92P0169261-84CrS3.331.00
92P0169261-84CrGP7.61.023
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 - - - - -)
6A1c
 
92P016880-10AS5.03
92P0168910-18ES1.78
92P0169018-43Bt1S0.82
92P0169143-61Bt2S0.66
92P0169261-84CrGP0.17
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
 
92P016880-10AS21.5*14.3--0.836.613.349.936.773100
92P0168910-18ES17.1*18.3--0.836.210.646.831.577100
92P0169018-43Bt1S12.715.1----27.88.035.830.17892
92P0169143-61Bt2S14.617.30.2--32.17.639.733.58196
92P0169261-84CrGP10.9*16.90.3--28.14.933.025.385100

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


*** Primary Characterization Data ***
Pedon ID: 91MT015831( Chouteau, Montana )Print Date: Feb 17 2025 7:30AM
Sampled As:Eaglecreek
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0254
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 - -)%
 
92P016880-10AS--
92P0168910-18ES--
92P0169018-43Bt1S--
92P0169143-61Bt2S1
92P0169261-84CrGP1
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
4C1a2a4C1a2a
 
92P016880-10AS5.55.8
92P0168910-18ES5.46.0
92P0169018-43Bt1S5.56.1
92P0169143-61Bt2S5.86.4
92P0169261-84CrGP6.87.2


*** Primary Characterization Data ***
Pedon ID: 91MT015831( Chouteau, Montana )Print Date: Feb 17 2025 7:30AM
Sampled As:Eaglecreek
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0254
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
92P016880.0-10.0AtclyMT 4MI 2MM 1KK 1 69.0 0.9
92P0169018.0-43.0Bt1tclyMT 5MI 1 79.2 0.7
92P0169261.0-84.0CrtclyMT 5MM 2KK 1HE 1 86.0 0.2

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
HE HematiteKK KaoliniteMI MicaMM Montmorillonite-MicaMT Montmorillonite

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


*** Primary Characterization Data ***
Pedon ID: 91MT015831( Chouteau, Montana )Print Date: Feb 17 2025 7:30AM
Sampled As:Eaglecreek
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0254
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
92P016880.0-10.0Avfs OT 99GS trPO tr
92P0168910.0-18.0Evfs OT 99GS trPO tr
92P0169018.0-43.0Bt1vfs OT 99GS tr
92P0169143.0-61.0Bt2vfs OT 99GS 1PO tr

FRACTION INTERPRETATION:
vfs - Very Fine Sand 0.05-0.1 mm

MINERAL INTERPRETATION:
GS GlassOT OtherPO Plant Opal
NSSC SSL Report Creation