Sample 202126
NavDat sample number 38414 · TRACHYTE
Sample
| Sample ID | 202126 |
|---|---|
| Rock name | TRACHYTE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | duBray and Harlan |
| Comment | Basaltic trachyandesite and trachyte dikes |
Location
| Latitude | 45.6369 |
|---|---|
| Longitude | -109.919 |
| State / province | Montana |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 75.31 | 74.89 | 75.73 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 52.89 | WT% | XRF | |
| AL2O3 | 20.21 | WT% | XRF | |
| FE2O3 | 1.15 | WT% | XRF | |
| FEO | 5.86 | WT% | XRF | |
| MGO | 3.66 | WT% | XRF | |
| CAO | 9.75 | WT% | XRF | |
| NA2O | 3.18 | WT% | XRF | |
| K2O | 2.21 | WT% | XRF | |
| TIO2 | 0.44 | WT% | XRF | |
| P2O5 | 0.5 | WT% | XRF | |
| MNO | 0.15 | WT% | XRF | |
| LOI | 3.72 | WT% | XRF | |
| RB | 56 | PPM | XRF | |
| SR | 932 | PPM | EDXRF | |
| Y | 5 | PPM | EDXRF | |
| ZR | 58 | PPM | EDXRF | |
| NB | 10 | PPM | EDXRF | |
| PB | 18 | PPM | EDXRF | |
| BA | 810 | PPM | EDXRF | |
| LA | 15 | PPM | EDXRF | |
| CE | 49 | PPM | EDXRF | |
| ND | 23 | PPM | EDXRF |