| *** Taxonomy Characterization Data *** |
| Pedon ID: S1970MT007002 | ( Broadwater, Montana ) | Print Date: Apr 29 2025 7:32AM |
| Sampled as on Nov 29, 1970: | Brockway |
| Revised to correlated: | Brocko ; Coarse-silty, mixed, superactive, frigid Borollic Calciorthids |
| United States Department of Agriculture | ||||
| SSL | - | Project | NL40001 SSIR SAMPLES | Soil Conservation Service |
| - | Site ID | S1970MT007002 Lat: 46° 2' 7.65" north Long: 111° 39' 15.08" west MLRA: 44 | Lincoln Soil Survey Laboratory | |
| - | Pedon No. | 40A3689 | 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 | 4A1d | |||||||||||
| 40A28443 | 0-18 | Ap | S | 18.7 | 3.0 | 0.57 | 3 | 1.32 | 0.025 | -- | |||
| 40A28444 | 18-45 | Bk1 | S | 20.5 | 7.0 | 0.43 | 1 | -- | |||||
| 40A28445 | 45-71 | Bk2 | S | 14.9 | 2.0 | 0.51 | 1 | 1.32 | 0.015 | -- | |||
| 40A28446 | 71-110 | C1 | S | 13.5 | tr | 0.47 | 1 | -- | |||||
| 40A28447 | 110-152 | C2 | S | 12.8 | 1.0 | 0.54 | 1 | 1.31 | 0.020 | -- | |||
| 40A28448 | 152-183 | C3 | S | 13.2 | -- | 0.52 | 1 | -- | |||||
| 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 | 6A1a | 6E1b | NK | 5D2 | |||||||||||||||
| 40A28443 | 0-18 | Ap | S | 8.0 | 1.20 | 10 | 100 | 1.03 | 1 | ||||||||||
| 40A28444 | 18-45 | Bk1 | S | 8.2 | 0.50 | 17 | 100 | 0.73 | 2 | ||||||||||
| 40A28445 | 45-71 | Bk2 | S | 8.7 | 0.29 | 13 | 100 | 0.97 | 12 | ||||||||||
| 40A28446 | 71-110 | C1 | S | 7.9 | 0.18 | 10 | 100 | 1.03 | 7.93 | 17 | |||||||||
| 40A28447 | 110-152 | C2 | S | 7.8 | 0.26 | 8 | 100 | 1.13 | 39 | ||||||||||
| 40A28448 | 152-183 | C3 | S | 7.9 | 0.29 | 9 | 100 | 1.07 | 35 | ||||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| CEC Activity, CEC7/Clay, Weighted Average | 1.08 | (NA) | |
| Clay, carbonate free, Weighted Average | 13 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 1 | % wt | |
| Clay, total, Weighted Average | 16 | % wt | |
| Weighted averages based on control section: 25-100 cm | |||