Sample 238
NavDat sample number 39381 · RHYOLITE
Sample
| Sample ID | 238 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | rhyolite porphyry dike |
Location
| Latitude | 46.6734 |
|---|---|
| Longitude | -115.385 |
| 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 | 77.15 | WT% | ICPAES | |
| TIO2 | 0.13 | WT% | ICPAES | |
| AL2O3 | 12.97 | WT% | ICPAES | |
| FEOT | 1.36 | WT% | ICPAES | |
| FE2O3 | 0.98 | WT% | TIT | |
| FEO | 0.48 | WT% | TIT | |
| MNO | 0.01 | WT% | ICPAES | |
| MGO | 0.09 | WT% | ICPAES | |
| CAO | 0.53 | WT% | ICPAES | |
| NA2O | 4.01 | WT% | ICPAES | |
| K2O | 4.51 | WT% | ICPAES | |
| P2O5 | 0.01 | WT% | ICPAES | |
| LOI | 0.83 | WT% | ICPAES | |
| TOTAL | 101.61 | WT% | ICPAES | |
| BA | 25 | PPM | INAA | |
| CO | 2.5 | PPM | INAA | |
| CR | 54 | PPM | INAA | |
| CS | 1.7 | PPM | INAA | |
| HF | 4 | PPM | INAA | |
| MO | 0.5 | PPM | INAA | |
| NI | 10 | PPM | INAA | |
| RB | 340 | PPM | INAA | |
| SC | 4 | PPM | INAA | |
| SN | 16 | PPM | XRF | |
| TA | 2.9 | PPM | INAA | |
| TH | 30.6 | PPM | INAA | |
| U | 9.3 | PPM | INAA | |
| ZN | 50 | PPM | INAA | |
| NB | 17 | PPM | XRF | |
| ZR | 100 | PPM | INAA | |
| LA | 12 | PPM | INAA | |
| CE | 43 | PPM | INAA | |
| SM | 6.2 | PPM | INAA | |
| EU | 0.5 | PPM | INAA | |
| TB | 1.9 | PPM | INAA | |
| YB | 5 | PPM | INAA | |
| LU | 0.9 | PPM | INAA |