| *** Primary Characterization Data *** |
| Pedon ID: 91MT089003 | ( Sanders, Montana ) | Print Date: Jul 30 2025 8:19AM |
| Sampled as on Jul 1, 1991: | Elkrock ; Loamy-skeletal, mixed, frigid Typic Xerochrept |
| Revised to correlated: | Elkrock ; Loamy-skeletal, mixed, superactive, frigid Vitrandic Xerochrepts |
| United States Department of Agriculture | ||||
| SSL | - | Project | RP91MT135 SANDERS COUNTY | Natural Resources Conservation Service |
| - | Site ID | S1991MT089003 Lat: 47° 29' 40.99" north Long: 114° 55' 58.99" west MLRA: 44 | National Soil Survey Center | |
| - | Pedon No. | 91P0528 | Soil Survey Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska 68508-3866 | ||
| Layer | Horizon | Orig Hzn | Depth (cm) | Field Label 1 | Field Label 2 | Field Label 3 | Field Texture | Lab Texture |
| 91P03055 | A | A | 0-5 | L | SIL | |||
| 91P03056 | Bw | Bw | 5-33 | L | SIL | |||
| 91P03057 | C | C | 33-152 | L | L | |||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Clay, carbonate free, Weighted Average | 12 | % wt | |
| Clay, total, Weighted Average | 12 | % wt | |
| Weighted averages based on control section: 25-100 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) ) | |||||||||||||||||
| Lab | Clay | Silt | Sand | Fine | CO3 | Fine | Coarse | VF | F | M | C | VC | (- - - - - - - - Weight - - - - - - - -) | >2 mm | |||||||
| Text- | < | .002 | .05 | < | < | .002 | .02 | .05 | .10 | .25 | .5 | 1 | 2 | 5 | 20 | .1- | wt % | ||||
| Depth | ure | .002 | -.05 | -2 | .0002 | .002 | -.02 | -.05 | -.10 | -.25 | -.50 | -1 | -2 | -5 | -20 | -75 | 75 | whole | |||
| Layer | (cm) | Horz | Prep | (- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -) | (- - - - - - - % of <75mm - - - - - -) | soil | |||||||||||||||
| 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | 3A1a1a | |||||||||||
| 91P03055 | 0-5 | A | N | sil | 10.3 | 61.5 | 28.2 | 37.2 | 24.3 | 12.9 | 6.9 | 4.2 | 2.9 | 1.3 | |||||||
| 91P03056 | 5-33 | Bw | N | sil | 13.4 | 58.8 | 27.8 | 39.3 | 19.5 | 10.2 | 7.1 | 4.2 | 3.1 | 3.2 | |||||||
| 91P03057 | 33-152 | C | N | l | 11.6 | 49.1 | 39.3 | 36.6 | 12.5 | 9.0 | 18.0 | 7.6 | 2.8 | 1.9 | |||||||
| *** Primary Characterization Data *** |
| Pedon ID: 91MT089003 | ( Sanders, Montana ) | Print Date: Jul 30 2025 8:19AM |
| Sampled As | : | Elkrock | Loamy-skeletal, mixed, frigid Typic Xerochrept | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 91P0528 | |||
| 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 ) | WRD | Aggst | ||||||||||||
| 33 | Oven | Whole | 6 | 10 | 33 | 1500 | 1500 kPa | (- - - - Ratio - - - -) | Whole | Stabl | (- - Ratio/Clay - -) | ||||||
| Depth | kPa | Dry | Soil | kPa | kPa | kPa | kPa | Moist | Corrected | Soil | 2-0.5mm | CEC7 | 1500 kPa | ||||
| Layer | (cm) | Horz | Prep | (- - - g cm-3 - - -) | (- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -) | cm3 cm-3 | % | ||||||||||
| 3C2a1a | 3D1 | 3F1a1a | 8D1 | ||||||||||||||
| 91P03055 | 0-5 | A | S | 34 | 1.58 | ||||||||||||
| 91P03055 | 0-5 | A | N | 16.3 | 1.024 | ||||||||||||
| 91P03056 | 5-33 | Bw | S | 0.69 | |||||||||||||
| 91P03056 | 5-33 | Bw | N | 9.2 | 1.013 | ||||||||||||
| 91P03057 | 33-152 | C | S | 0.41 | |||||||||||||
| 91P03057 | 33-152 | C | N | 4.8 | 1.004 | ||||||||||||
| Carbon & Extractions | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | -19- | |||
| (- - - - - Total - - - - -) | Est | OC | C/N | (- - - Dith-Cit Ext - - -) | (- - - - - - Ammonium Oxalate Extraction - - - - - -) | (- - - Na Pyro-Phosphate - - -) | ||||||||||||||||
| Depth | C | N | S | OC | (WB) | Ratio | Fe | Al | Mn | Al+½Fe | ODOE | Fe | Al | Si | Mn | C | Fe | Al | Mn | |||
| Layer | (cm) | Horz | Prep | (- - - - - - - - - - % of <2 mm - - - - - - - - - -) | (- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -) | mg kg-1 | (- - - - - - % of < 2mm - - - - -) | |||||||||||||||
| 6A1c | 8J | 6C9a | 6G12 | 6V2 | 6D5b | |||||||||||||||||
| 91P03055 | 0-5 | A | N | 8.69 | 0.31 | 0.23 | 0.23 | 0.19 | 0.03 | 786.3 | ||||||||||||
| 91P03056 | 5-33 | Bw | N | 0.74 | 0.22 | 0.07 | 0.16 | 0.14 | 0.05 | 405.0 | ||||||||||||
| 91P03057 | 33-152 | C | N | 0.35 | 0.07 | 0.02 | 0.06 | 0.04 | 0.02 | 131.0 | ||||||||||||
| 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 | ||||||||||||||||||||||
| Total | Elec | Elec | Exch | ||||||||||||||||||||
| Depth | Ca | Mg | Na | K | CO3 | HCO3 | F | Cl | PO4 | Br | OAC | SO4 | NO2 | NO3 | H2O | Salts | Cond | Cond | Na | SAR | |||
| Layer | (cm) | Horz | Prep | (- - - - - mmol(+) L-1 - - - - -) | (- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -) | (- - - - % - - - -) | (- - dS m-1 - -) | % | |||||||||||||||
| 4F1a1a1 | |||||||||||||||||||||||
| 91P03056 | 5-33 | Bw | N | 0.08 | |||||||||||||||||||
| 91P03057 | 33-152 | C | N | 0.05 | |||||||||||||||||||
| *** Primary Characterization Data *** |
| Pedon ID: 91MT089003 | ( Sanders, Montana ) | Print Date: Jul 30 2025 8:19AM |
| Sampled As | : | Elkrock | Loamy-skeletal, mixed, frigid Typic Xerochrept | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 91P0528 | |||
| pH & Carbonates | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | |||
| (- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -) | (- - Carbonate - -) | (- - Gypsum - - -) | ||||||||||||
| CaCl2 | As CaCO3 | As CaSO4*2H2O | Resist | |||||||||||
| Depth | 0.01M | H2O | Sat | <2mm | <20mm | <2mm | <20mm | ohms | ||||||
| Layer | (cm) | Horz | Prep | KCl | 1:2 | 1:1 | Paste | Oxid | NaF | (- - - - - - - - - - - - % - - - - - - - - - - -) | cm-1 | |||
| 4C1a2a | 4C1a2a | |||||||||||||
| 91P03055 | 0-5 | A | N | 5.5 | 6.3 | |||||||||
| 91P03056 | 5-33 | Bw | N | 5.7 | 6.2 | |||||||||
| 91P03057 | 33-152 | C | N | 5.7 | 6.1 | |||||||||
| Phosphorous | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | |||
| (- - - - - - - - - - - - - - - - - - - - - - - Phosphorous - - - - - - - - - - - - - - - - - - - - -) | KCl | ||||||||||||||
| Melanic | NZ | Acid | Anion Exch Resin | Bray | Bray | Olsen | H2O | Citric | Mehlich | Extr | |||||
| Depth | Index | Oxal | Available | Capacity | 1 | 2 | Acid | III | NO3 | ||||||
| Layer | (cm) | Horz | Prep | % | (- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -) | ||||||||||
| 6S4 | |||||||||||||||
| 91P03055 | 0-5 | A | N | 29 | |||||||||||
| 91P03056 | 5-33 | Bw | N | 16 | |||||||||||
| 91P03057 | 33-152 | C | N | 10 | |||||||||||
| *** Primary Characterization Data *** |
| Pedon ID: 91MT089003 | ( Sanders, Montana ) | Print Date: Jul 30 2025 8:19AM |
| Sampled As | : | Elkrock | Loamy-skeletal, mixed, frigid Typic Xerochrept | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 91P0528 | |||
| Clay Mineralogy (<.002 mm) | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | |||
| X-Ray | Thermal | Elemental | EGME | Inter | |||||||||||||||||
| SiO2 | Al2O3 | Fe2O3 | MgO | CaO | K2O | Na2O | Retn | preta | |||||||||||||
| Depth | Fract | 7A2i | 7C3 | tion | |||||||||||||||||
| Layer | (cm) | Horz | ion | ( - - - - - - - - - peak size - - - - - - - - - - ) | (- - - - - - - - - % - - - - - - - - - -) | (- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -) | mg g-1 | ||||||||||||||
| 91P03056 | 5.0-33.0 | Bw | tcly | MI 2 | KK 2 | VR 1 | 17 | 6.3 | 1.4 | ||||||||||||
| FRACTION INTERPRETATION: | ||||
| tcly - Total Clay <0.002 mm | ||||
| MINERAL INTERPRETATION: | ||||
| KK Kaolinite | MI Mica | VR Vermiculite | ||
| RELATIVE PEAK SIZE: | 5 Very Large | 4 Large | 3 Medium | 2 Small | 1 Very Small | 6 No Peaks |
| *** Primary Characterization Data *** |
| Pedon ID: 91MT089003 | ( Sanders, Montana ) | Print Date: Jul 30 2025 8:19AM |
| Sampled As | : | Elkrock | Loamy-skeletal, mixed, frigid Typic Xerochrept | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 91P0528 | |||
| 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-Ray | Thermal | Optical | EGME | Inter | |||||||||||||||||
| Tot Re | Grain Count | Retn | preta | ||||||||||||||||||
| Depth | Fract | 7B1a2 | tion | ||||||||||||||||||
| Layer | (cm) | Horz | ion | ( - - - - - - - - peak size - - - - - - - - - ) | (- - - - - - - - % - - - - - - - - - -) | (- - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - -) | mg g-1 | ||||||||||||||
| 91P03056 | 5.0-33.0 | Bw | csi | OT 86 | GS 9 | PO 5 | GC tr | ||||||||||||||
| FRACTION INTERPRETATION: | ||||
| csi - Coarse Silt 0.02-0.05 mm | ||||
| MINERAL INTERPRETATION: | ||||
| GC Glass-coated Grain | GS Glass | OT Other | PO Plant Opal | |