Sample MCR 7 81
NavDat sample number 38905 · RHYODACITE
Sample
| Sample ID | MCR 7 81 |
|---|---|
| Rock name | RHYODACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 43.825 |
|---|---|
| Longitude | -114.544 |
| 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 | 65.12 | WT% | XRF | |
| AL2O3 | 15.13 | WT% | XRF | |
| TIO2 | 0.549 | WT% | XRF | |
| FEOT | 4.18 | WT% | XRF | |
| MNO | 0.067 | WT% | XRF | |
| CAO | 3.87 | WT% | XRF | |
| MGO | 2.88 | WT% | XRF | |
| K2O | 3.18 | WT% | XRF | |
| NA2O | 4.27 | WT% | XRF | |
| P2O5 | 0.179 | WT% | XRF | |
| TOTAL | 99.43 | WT% | XRF | |
| NI | 49 | PPM | XRF | |
| CR | 98 | PPM | XRF | |
| SC | 14 | PPM | XRF | |
| V | 84 | PPM | XRF | |
| BA | 1651 | PPM | XRF | |
| RB | 74 | PPM | XRF | |
| SR | 700 | PPM | XRF | |
| ZR | 182 | PPM | XRF | |
| Y | 17 | PPM | XRF | |
| NB | 18.7 | PPM | XRF | |
| GA | 20 | PPM | XRF | |
| CU | 0 | PPM | XRF | |
| ZN | 50 | PPM | XRF | |
| PB | 17 | PPM | XRF | |
| LA | 57 | PPM | XRF | |
| CE | 58 | PPM | XRF | |
| TH | 15 | PPM | XRF |