| *** Taxonomy Characterization Data *** |
| Pedon ID: S1971MT069004 | ( Petroleum, Montana ) | Print Date: Feb 16 2025 5:29AM |
| Sampled as on Aug 30, 1971: | Thebo |
| Revised to correlated: | Abor ; Fine, smectitic, frigid Udorthentic Chromusterts |
| United States Department of Agriculture | ||||
| SSL | - | Project | NL40001 SSIR SAMPLES | Soil Conservation Service |
| - | Site ID | S1971MT069004 Lat: 47° 2' 38.74" north Long: 108° 24' 44.75" west MLRA: 58A | Lincoln Soil Survey Laboratory | |
| - | Pedon No. | 40A3723 | Soil Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska | ||
| Taxonomy Tier 1 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | |||
| Fine | CaCO3 | 1500 | .1-75 | Bulk | Cole | Vol | Resist | ||||||
| Clay | Clay | Clay | kPa | Clay | mm | Den | Whole | % of | Min | ||||
| Depth | <.002 | <.0002 | <.002 | /Clay | Est | Frac | 33 kPa | Soil | Whole | % | |||
| Layer | (cm) | Horz | Prep | (---------% of <2 mm-------) | (-------- % --------) | g cm-3 | cm cm-1 | ||||||
| 3A1a1a | 3A1a1a | NK | |||||||||||
| 40A28688 | 0-6 | A | S | 47.9 | 0.34 | 3 | 1.33 | 0.067 | 1 | ||||
| 40A28689 | 6-27 | B1 | S | 52.0 | tr | 0.34 | 2 | 1.43 | 1 | ||||
| 40A28690 | 27-45 | B2 | S | 52.3 | tr | 0.36 | 1 | 1.43 | 0.078 | -- | |||
| 40A28691 | 45-62 | B3 | S | 51.3 | -- | 0.37 | 1 | -- | |||||
| 40A28692 | 62-88 | By1 | S | 50.5 | -- | 0.38 | 1 | 1.44 | 0.051 | -- | |||
| 40A28693 | 88-115 | By2 | S | 50.3 | -- | 0.38 | 1 | -- | |||||
| 40A28694 | 115-140 | By3 | S | 51.4 | -- | 0.39 | 1 | 1.45 | 0.079 | -- | |||
| Taxonomy Tier 2 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | |||
| pH | pH | Org | Tot | Al+½ Fe | CO3 as | (--- Base Sat ---) | NZ | ECEC | CEC7 | ECEC | Al | ||||||||
| Depth | H2O | NaF | C | C | Oxal | ODOE | CaCO3 | NH4 | Bases | P Ret | cmol(+) | /Clay | /Clay | Sat | E C | ESP | |||
| Layer | (cm) | Horz | Prep | (------------------------------------------ % --------------------------------------------) | kg -1 | % | dS m-1 | % | |||||||||||
| 8C1a | NK | NK | NK | 5D2 | |||||||||||||||
| 40A28688 | 0-6 | A | S | 7.5 | 2.98 | 1 | 100* | 100 | 0.66 | 2.13 | 2 | ||||||||
| 40A28689 | 6-27 | B1 | S | 8.5 | 1.10 | 4 | 100* | 100 | 0.62 | 1.16 | 10 | ||||||||
| 40A28690 | 27-45 | B2 | S | 8.4 | 0.94 | 4 | 100* | 100 | 0.62 | 2.55 | 17 | ||||||||
| 40A28691 | 45-62 | B3 | S | 7.9 | 0.84 | 3 | 100 | 0.61 | 7.81 | 12 | |||||||||
| 40A28692 | 62-88 | By1 | S | 8.0 | 0.64 | 4 | 100 | 0.55 | 9.13 | 8 | |||||||||
| 40A28693 | 88-115 | By2 | S | 8.1 | 0.53 | 1 | 100 | 0.63 | 10.20 | 12 | |||||||||
| 40A28694 | 115-140 | By3 | S | 7.8 | 0.36 | 2 | 100 | 0.58 | 10.40 | 8 | |||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.59 | (NA) | |
| Clay, carbonate free, Weighted Average | 51 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 1 | % wt | |
| Clay, total, Weighted Average | 51 | % wt | |
| Weighted averages based on control section: 25-100 cm | |||