Sample 338
NavDat sample number 39384 · RHYOLITE
Sample
| Sample ID | 338 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | rhyolite porphyry dike |
Location
| Latitude | 46.5958 |
|---|---|
| Longitude | -115.598 |
| State / province | Idaho |
| Volcanic field | Bungalow stock, Challis magmatic province |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 46.2 | 44.2 | 48.2 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 76.72 | WT% | ICPAES | |
| TIO2 | 0.02 | WT% | ICPAES | |
| AL2O3 | 12.78 | WT% | ICPAES | |
| FEOT | 0.98 | WT% | ICPAES | |
| FE2O3 | 0.21 | WT% | TIT | |
| FEO | 0.77 | WT% | TIT | |
| MNO | 0.02 | WT% | ICPAES | |
| MGO | 0.04 | WT% | ICPAES | |
| CAO | 1.13 | WT% | ICPAES | |
| NA2O | 4.13 | WT% | ICPAES | |
| K2O | 4.58 | WT% | ICPAES | |
| P2O5 | 0.13 | WT% | ICPAES | |
| LOI | 0.86 | WT% | ICPAES | |
| TOTAL | 101.39 | WT% | ICPAES | |
| BA | 25 | PPM | INAA | |
| CO | 2.5 | PPM | INAA | |
| CR | 54 | PPM | INAA | |
| CS | 2.4 | PPM | INAA | |
| HF | 9 | PPM | INAA | |
| MO | 0.5 | PPM | INAA | |
| NI | 10 | PPM | INAA | |
| RB | 210 | PPM | INAA | |
| SC | 0.4 | PPM | INAA | |
| SN | 6 | PPM | XRF | |
| TA | 1.6 | PPM | INAA | |
| TH | 20.4 | PPM | INAA | |
| U | 6 | PPM | INAA | |
| ZN | 50 | PPM | INAA | |
| NB | 26 | PPM | XRF | |
| ZR | 350 | PPM | INAA | |
| LA | 31 | PPM | INAA | |
| CE | 64 | PPM | INAA | |
| SM | 8.5 | PPM | INAA | |
| EU | 0.5 | PPM | INAA | |
| TB | 1.5 | PPM | INAA | |
| YB | 4 | PPM | INAA | |
| LU | 0.5 | PPM | INAA |