Sample RD 828-64
NavDat sample number 64257 · DACITE
Sample
| Sample ID | RD 828-64 |
|---|---|
| Rock name | DACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | rhyodacite |
Location
| Latitude | 38.1792 |
|---|---|
| Longitude | -107.612 |
| Location | Spruce Ridge |
| State / province | COLORADO |
| Formation | Spruce Ridge dike |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 66.9 | 62.9 | 70.9 |
Analyses
WR
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 58.6 | WT% | RAPID_ROCK | |
| AL2O3 | 16.3 | WT% | RAPID_ROCK | |
| FE2O3 | 6.3 | WT% | RAPID_ROCK | |
| FEO | 0.56 | WT% | RAPID_ROCK | |
| MGO | 2.3 | WT% | RAPID_ROCK | |
| CAO | 5.3 | WT% | RAPID_ROCK | |
| NA2O | 3.9 | WT% | RAPID_ROCK | |
| K2O | 2.5 | WT% | RAPID_ROCK | |
| H2O_MINUS | 0.87 | WT% | RAPID_ROCK | |
| H2O_PLUS | 1.6 | WT% | RAPID_ROCK | |
| TIO2 | 0.7 | WT% | RAPID_ROCK | |
| P2O5 | 0.46 | WT% | RAPID_ROCK | |
| MNO | 0.18 | WT% | RAPID_ROCK | |
| CO2 | 0 | WT% | RAPID_ROCK |