Sample THR 72396-2
NavDat sample number 38996 · RHYODACITE
Sample
| Sample ID | THR 72396-2 |
|---|---|
| Rock name | RHYODACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | porphyritic; fine to medium crystalline groundmass; present as dikes, veins, and isolated outcrops throught the granite stock |
Location
| Latitude | 43.7764 |
|---|---|
| Longitude | -114.666 |
| Location | Smoky Mountains |
| State / province | Idaho |
| Volcanic field | Prairie Creek rhyodacite-rhyolite suite |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 42 | 38.9 | 46.7 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 73.51 | WT% | XRF | |
| AL2O3 | 13.87 | WT% | XRF | |
| TIO2 | 0.256 | WT% | XRF | |
| FEOT | 1.84 | WT% | XRF | |
| MNO | 0.038 | WT% | XRF | |
| CAO | 1.22 | WT% | XRF | |
| MGO | 0.35 | WT% | XRF | |
| K2O | 5.24 | WT% | XRF | |
| NA2O | 3.59 | WT% | XRF | |
| P2O5 | 0.076 | WT% | XRF | |
| NI | 11 | PPM | XRF | |
| CR | 7 | PPM | XRF | |
| SC | 3 | PPM | XRF | |
| V | 22 | PPM | XRF | |
| BA | 761 | PPM | XRF | |
| RB | 259 | PPM | XRF | |
| SR | 223 | PPM | XRF | |
| ZR | 186 | PPM | XRF | |
| Y | 23 | PPM | XRF | |
| NB | 34.2 | PPM | XRF | |
| GA | 19 | PPM | XRF | |
| CU | 4 | PPM | XRF | |
| ZN | 27 | PPM | XRF | |
| PB | 30 | PPM | XRF | |
| LA | 56 | PPM | XRF | |
| CE | 103 | PPM | XRF | |
| TH | 42 | PPM | XRF |