Sample 8
NavDat sample number 9063 · TRACHYTE
Sample
| Sample ID | 8 |
|---|---|
| Rock name | TRACHYTE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | intrusive, hypabyssal |
Location
| Latitude | 44.4753 |
|---|---|
| Longitude | -104.448 |
| Location | Bear Lodge Mtns |
| State / province | Wyoming |
| Volcanic field | Bear Lodge intrusive bodies |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 54.15 | 49.4 | 58.9 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 57 | WT% | UNKNOWN | |
| AL2O3 | 17.7 | WT% | UNKNOWN | |
| FE2O3 | 2.4 | WT% | UNKNOWN | |
| FEO | 1.5 | WT% | UNKNOWN | |
| MGO | 1.2 | WT% | UNKNOWN | |
| CAO | 3.5 | WT% | UNKNOWN | |
| NA2O | 5.2 | WT% | UNKNOWN | |
| K2O | 6.2 | WT% | UNKNOWN | |
| H2O_PLUS | 2.3 | WT% | UNKNOWN | |
| H2O_MINUS | 0.56 | WT% | UNKNOWN | |
| TIO2 | 0.54 | WT% | UNKNOWN | |
| P2O5 | 0.14 | WT% | UNKNOWN | |
| MNO | 0.12 | WT% | UNKNOWN | |
| CO2 | 0.36 | WT% | UNKNOWN | |
| TOTAL | 98.72 | WT% | UNKNOWN |