| *** Primary Characterization Data *** |
| Pedon ID: S1971MT027001 | ( Fergus, Montana ) | Print Date: Apr 23 2025 1:24PM |
| Sampled as on Aug 30, 1971: | Thebo |
| Revised to correlated: | Bascovy ; Fine, smectitic, frigid Udorthentic Chromusterts |
| United States Department of Agriculture | ||||
| SSL | - | Project | NL40001 SSIR SAMPLES | Soil Conservation Service |
| - | Site ID | S1971MT027001 Lat: 47° 24' 42.73" north Long: 108° 50' 0.83" west MLRA: 58A | Lincoln Soil Survey Laboratory | |
| - | Pedon No. | 40A3722 | Soil Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska | ||
| Layer | Horizon | Orig Hzn | Depth (cm) | Field Label 1 | Field Label 2 | Field Label 3 | Field Texture | Lab Texture |
| 40A28682 | Ap | Ap | 0-12 | 71L1030 | C | |||
| 40A28683 | B1 | C 1 | 12-32 | 71L1031 | C | |||
| 40A28684 | B2 | C 2 | 32-50 | 71L1032 | C | |||
| 40A28685 | B3 | C 3 | 50-72 | 71L1033 | C | |||
| 40A28686 | By | C 4Cs | 72-95 | 71L1034 | SIC | |||
| 40A28687 | C | C 5 | 95-135 | 71L1035 | C | |||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.76 | (NA) | |
| Clay, carbonate free, Weighted Average | 55 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 2 | % wt | |
| Clay, total, Weighted Average | 55 | % 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 | 3A1a1a | 3B1 | 3B1 | 3B1 | |||||||
| 40A28682 | 0-12 | Ap | S | c | 61.1 | 28.3 | 10.6 | 19.0 | 9.3 | 8.6 | 1.4 | 0.3 | 0.2 | 0.1 | -- | 1 | -- | 3 | 1 | ||
| 40A28683 | 12-32 | B1 | S | c | 59.2 | 31.1 | 9.7 | 12.2 | 21.8 | 9.3 | 8.2 | 0.9 | 0.2 | 0.2 | 0.2 | -- | -- | -- | 2 | -- | |
| 40A28684 | 32-50 | B2 | S | c | 56.9 | 33.7 | 9.4 | 16.5 | 25.1 | 8.6 | 7.9 | 0.8 | 0.2 | 0.3 | 0.2 | -- | -- | -- | 2 | -- | |
| 40A28685 | 50-72 | B3 | S | c | 54.2 | 36.6 | 9.2 | 12.9 | 26.7 | 9.9 | 7.7 | 0.7 | 0.3 | 0.4 | 0.1 | -- | -- | -- | 2 | -- | |
| 40A28686 | 72-95 | By | S | sic | 51.5 | 40.5 | 8.0 | 8.9 | 31.7 | 8.8 | 6.8 | 0.6 | 0.2 | 0.3 | 0.1 | -- | -- | -- | 1 | -- | |
| 40A28687 | 95-135 | C | S | c | 57.7 | 36.2 | 6.1 | 11.0 | 29.5 | 6.7 | 5.6 | 0.3 | 0.1 | 0.1 | tr | -- | -- | -- | 1 | -- | |
| *** Primary Characterization Data *** |
| Pedon ID: S1971MT027001 | ( Fergus, Montana ) | Print Date: Apr 23 2025 1:24PM |
| Sampled As | : | Thebo | |||
| USDA-SCS-Soil Survey Laboratory | ; | Pedon No. 40A3722 | |||
| 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 | % | ||||||||||
| NK | 4A1h | 4B1c | NK | NK | 3D1 | ||||||||||||
| 40A28682 | 0-12 | Ap | S | 23.2 | 0.75 | 0.38 | |||||||||||
| 40A28683 | 12-32 | B1 | S | 1.23 | 1.59 | 0.089 | 40.1 | 37.8 | 24.4 | 0.16 | 0.73 | 0.41 | |||||
| 40A28684 | 32-50 | B2 | S | 1.26 | 1.73 | 0.111 | 40.4 | 38.4 | 24.5 | 0.18 | 0.75 | 0.43 | |||||
| 40A28685 | 50-72 | B3 | S | 1.27 | 1.62 | 0.085 | 34.7 | 32.5 | 23.5 | 0.11 | 0.77 | 0.43 | |||||
| 40A28686 | 72-95 | By | S | 1.25 | 1.61 | 0.088 | 35.3 | 33.0 | 22.6 | 0.13 | 0.80 | 0.44 | |||||
| 40A28687 | 95-135 | C | S | 20.5 | 1.055 | 0.67 | 0.36 | ||||||||||
| 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 - - - - -) | |||||||||||||||
| 4H2a | 4H2a | 4H2a | NK | |||||||||||||||||||
| 40A28682 | 0-12 | Ap | S | 1.03 | ||||||||||||||||||
| 40A28683 | 12-32 | B1 | S | 0.71 | ||||||||||||||||||
| 40A28684 | 32-50 | B2 | S | 0.66 | ||||||||||||||||||
| 40A28685 | 50-72 | B3 | S | 0.56 | ||||||||||||||||||
| 40A28686 | 72-95 | By | S | 0.46 | ||||||||||||||||||
| 40A28687 | 95-135 | C | S | 0.51 | 0.08 | 0.95 | 0.48 | |||||||||||||||
| CEC & Bases | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | |||
| (- - - - - - NH4OAC Extractable Bases - - - - -) | CEC8 | CEC7 | ECEC | (- - - - Base - - - -) | |||||||||||||
| Sum | Acid- | Extr | KCl | Sum | NH4 | Bases | Al | (- Saturation -) | |||||||||
| Depth | Ca | Mg | Na | K | Bases | ity | Al | Mn | Cats | OAC | +Al | Sat | Sum | NH4OAC | |||
| Layer | (cm) | Horz | Prep | (- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -) | mg kg-1 | (- - - - cmol(+) kg-1 - - -) | (- - - - - - - - % - - - - - - - -) | ||||||||||
| NK | NK | NK | NK | NK | |||||||||||||
| 40A28682 | 0-12 | Ap | S | 34.5* | 7.8 | 2.2 | 1.7 | 45.8 | 100 | 100 | |||||||
| 40A28683 | 12-32 | B1 | S | 33.3* | 7.8 | 3.6 | 1.2 | 43.0 | 100 | 100 | |||||||
| 40A28684 | 32-50 | B2 | S | 32.0* | 7.5 | 5.4 | 1.2 | 42.6 | 100 | 100 | |||||||
| 40A28685 | 50-72 | B3 | S | 31.7 | 1.3 | 6.0 | 1.2 | 41.7 | 100 | 96 | |||||||
| 40A28686 | 72-95 | By | S | 7.5 | 5.6 | 1.2 | 41.1 | 100 | |||||||||
| 40A28687 | 95-135 | C | S | 9.1 | 5.9 | 1.1 | 38.5 | 100 | |||||||||
| *** Primary Characterization Data *** |
| Pedon ID: S1971MT027001 | ( Fergus, Montana ) | Print Date: Apr 23 2025 1:24PM |
| Sampled As | : | Thebo | |||
| USDA-SCS-Soil Survey Laboratory | ; | Pedon No. 40A3722 | |||
| 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 - -) | % | |||||||||||||||
| NK | NK | NK | NK | NK | NK | NK | NK | NK | 8D5 | NK | |||||||||||||
| 40A28682 | 0-12 | Ap | S | 2.4 | 0.7 | 4.1 | 0.2 | -- | 5.6 | 0.2 | -- | 70.0 | tr | 0.66 | 4 | 3 | |||||||
| 40A28683 | 12-32 | B1 | S | 1.2 | 0.3 | 6.1 | 0.1 | -- | 6.1 | 0.2 | -- | 75.2 | tr | 0.75 | 7 | 7 | |||||||
| 40A28684 | 32-50 | B2 | S | 1.4 | 0.3 | 8.3 | 0.1 | -- | 6.9 | 0.5 | -- | 74.1 | tr | 1.01 | 11 | 9 | |||||||
| 40A28685 | 50-72 | B3 | S | 4.3 | 1.3 | 19.0 | 0.3 | -- | 5.0 | 1.4 | 13.4 | 72.9 | 0.1 | 2.29 | 11 | 11 | |||||||
| 40A28686 | 72-95 | By | S | 31.0 | 7.6 | 37.7 | 0.7 | -- | 3.5 | 3.3 | 61.5 | 66.5 | 0.3 | 5.35 | 8 | 9 | |||||||
| 40A28687 | 95-135 | C | S | 26.0 | 11.2 | 43.0 | 1.0 | -- | 1.5 | 3.3 | 70.8 | 60.3 | 0.2 | 5.37 | 9 | 10 | |||||||
| 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 | |||
| 8C1e | 8C1a | NK | NK | NK | ||||||||||
| 40A28682 | 0-12 | Ap | S | 7.5 | 7.9 | 7.5 | -- | |||||||
| 40A28683 | 12-32 | B1 | S | 7.7 | 8.2 | 7.6 | 1 | |||||||
| 40A28684 | 32-50 | B2 | S | 7.8 | 8.1 | 7.7 | 1 | |||||||
| 40A28685 | 50-72 | B3 | S | 7.8 | 8.1 | 7.6 | 1 | |||||||
| 40A28686 | 72-95 | By | S | 7.6 | 7.7 | 7.4 | -- | 1 | ||||||
| 40A28687 | 95-135 | C | S | 5.9 | 6.0 | 5.7 | -- | 9 | ||||||
| *** Primary Characterization Data *** |
| Pedon ID: S1971MT027001 | ( Fergus, Montana ) | Print Date: Apr 23 2025 1:24PM |
| Sampled As | : | Thebo | |||
| USDA-SCS-Soil Survey Laboratory | ; | Pedon No. 40A3722 | |||
| 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 | tion | ||||||||||||||||||
| Layer | (cm) | Horz | ion | ( - - - - - - - - - peak size - - - - - - - - - - ) | (- - - - - - - - - % - - - - - - - - - -) | (- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -) | mg g-1 | ||||||||||||||
| 40A28684 | 32.0-50.0 | B2 | tcly | MT 4 | MI 3 | KK 1 | QZ 1 | ||||||||||||||
| 40A28687 | 95.0-135.0 | C | tcly | MT 5 | MI 3 | KK 1 | QZ 1 | ||||||||||||||
| FRACTION INTERPRETATION: | ||||
| tcly - Total Clay <0.002 mm | ||||
| MINERAL INTERPRETATION: | ||||
| KK Kaolinite | MI Mica | MT Montmorillonite | QZ Quartz | |
| RELATIVE PEAK SIZE: | 5 Very Large | 4 Large | 3 Medium | 2 Small | 1 Very Small | 6 No Peaks |