| *** Taxonomy Characterization Data *** |
| Pedon ID: 91MT041005 | ( Hill, Montana ) | Print Date: Nov 11 2024 8:32PM |
| Sampled as on Aug 23, 1991: | Marvan ; Fine, montmorillonitic, frigid Udorthentic Chromustert |
| Revised to correlated: | MARVAN ; Fine, montmorillonitic, frigid Sodic Haplusterts |
| United States Department of Agriculture | ||||
| SSL | - | Project | CP91MT253 HILL COUNTY | Natural Resources Conservation Service |
| - | Site ID | S1991MT041005 Lat: 48° 20' 58.00" north Long: 110° 1' 10.01" west MLRA: 52 | National Soil Survey Center | |
| - | Pedon No. | 91P1130 | Soil Survey Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska 68508-3866 | ||
| 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 | 8D1 | |||||||||||
| 91P07604 | 0-8 | A | S | 42.4 | 0.7 | 0.43 | 3 | ||||||
| 91P07605 | 8-30 | Bw | S | 49.0 | 1.9 | 0.46 | 2 | ||||||
| 91P07606 | 30-69 | Byz1 | S | 50.0 | 2.4 | 0.43 | 1 | ||||||
| 91P07607 | 69-112 | Byz2 | S | 55.3 | 2.6 | 0.40 | tr | ||||||
| 91P07608 | 112-152 | Byz3 | S | 61.1 | 1.0 | 0.39 | tr | ||||||
| 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 | % | |||||||||||
| 4C1a2a | 6A1c | 6E1g | 5C1 | 5C3 | 8D1 | 8A3a | 5D2 | ||||||||||||
| 91P07604 | 0-8 | A | S | 8.8 | 1.26 | 2 | 100* | 100 | 0.74 | 1.27 | 25 | ||||||||
| 91P07605 | 8-30 | Bw | S | 8.9 | 1.09 | 3 | 100* | 100 | 0.68 | 2.45 | 49 | ||||||||
| 91P07606 | 30-69 | Byz1 | S | 8.3 | 0.55 | 6 | 100* | 100 | 0.65 | 10.90 | 37 | ||||||||
| 91P07607 | 69-112 | Byz2 | S | 8.4 | 0.39 | 5 | 100* | 100 | 0.45 | 7.93 | 51 | ||||||||
| 91P07608 | 112-152 | Byz3 | S | 8.3 | 0.33 | 4 | 100* | 100 | 0.64 | 9.00 | 39 | ||||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Clay, carbonate free, Weighted Average | 50 | % wt | |
| CEC Activity, CEC7/Clay, Weighted Average | 0.57 | (NA) | |
| Clay, total, Weighted Average | 52 | % wt | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 1 | % wt | |
| Weighted averages based on control section: 25-100 cm | |||