Sample MCR 7 8 5
NavDat sample number 38914 · RHYODACITE
Sample
| Sample ID | MCR 7 8 5 |
|---|---|
| Rock name | RHYODACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 43.8267 |
|---|---|
| Longitude | -114.547 |
| Location | Boulder Mountains |
| State / province | Idaho |
| Volcanic field | Boulder Mountain Stock, porphyry unit |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 42.8 | 38.9 | 46.7 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 72.47 | WT% | XRF | |
| AL2O3 | 14.13 | WT% | XRF | |
| TIO2 | 0.282 | WT% | XRF | |
| FEOT | 1.95 | WT% | XRF | |
| MNO | 0.037 | WT% | XRF | |
| CAO | 0.82 | WT% | XRF | |
| MGO | 0.43 | WT% | XRF | |
| K2O | 5.7 | WT% | XRF | |
| NA2O | 3.41 | WT% | XRF | |
| P2O5 | 0.075 | WT% | XRF | |
| TOTAL | 99.3 | WT% | XRF | |
| NI | 10 | PPM | XRF | |
| CR | 1 | PPM | XRF | |
| SC | 0 | PPM | XRF | |
| V | 22 | PPM | XRF | |
| BA | 1092 | PPM | XRF | |
| RB | 273 | PPM | XRF | |
| SR | 194 | PPM | XRF | |
| ZR | 209 | PPM | XRF | |
| Y | 22 | PPM | XRF | |
| NB | 29.5 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| CU | 4 | PPM | XRF | |
| ZN | 34 | PPM | XRF | |
| PB | 25 | PPM | XRF | |
| LA | 50 | PPM | XRF | |
| CE | 131 | PPM | XRF | |
| TH | 42 | PPM | XRF |