Sample MCR 7 8 4
NavDat sample number 38913 · RHYODACITE
Sample
| Sample ID | MCR 7 8 4 |
|---|---|
| Rock name | RHYODACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 43.8281 |
|---|---|
| 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 | 70.73 | WT% | XRF | |
| AL2O3 | 14.02 | WT% | XRF | |
| TIO2 | 0.345 | WT% | XRF | |
| FEOT | 2.53 | WT% | XRF | |
| MNO | 0.043 | WT% | XRF | |
| CAO | 1.79 | WT% | XRF | |
| MGO | 1.05 | WT% | XRF | |
| K2O | 4.69 | WT% | XRF | |
| NA2O | 3.36 | WT% | XRF | |
| P2O5 | 0.095 | WT% | XRF | |
| TOTAL | 98.65 | WT% | XRF | |
| NI | 15 | PPM | XRF | |
| CR | 25 | PPM | XRF | |
| SC | 4 | PPM | XRF | |
| V | 35 | PPM | XRF | |
| BA | 1000 | PPM | XRF | |
| RB | 169 | PPM | XRF | |
| SR | 344 | PPM | XRF | |
| ZR | 153 | PPM | XRF | |
| Y | 17 | PPM | XRF | |
| NB | 21.1 | PPM | XRF | |
| GA | 15 | PPM | XRF | |
| CU | 3 | PPM | XRF | |
| ZN | 65 | PPM | XRF | |
| PB | 36 | PPM | XRF | |
| LA | 58 | PPM | XRF | |
| CE | 120 | PPM | XRF | |
| TH | 29 | PPM | XRF |