Sample 42
NavDat sample number 39379 · RHYOLITE
Sample
| Sample ID | 42 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | rhyolite porphyry dike |
Location
| Latitude | 46.6656 |
|---|---|
| Longitude | -115.383 |
| 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 | 77.95 | WT% | ICPAES | |
| TIO2 | 0.09 | WT% | ICPAES | |
| AL2O3 | 12.53 | WT% | ICPAES | |
| FEOT | 1.21 | WT% | ICPAES | |
| FE2O3 | 0.56 | WT% | TIT | |
| FEO | 0.65 | WT% | TIT | |
| MNO | 0.02 | WT% | ICPAES | |
| MGO | 0.08 | WT% | ICPAES | |
| CAO | 0.66 | WT% | ICPAES | |
| NA2O | 3.75 | WT% | ICPAES | |
| K2O | 4.42 | WT% | ICPAES | |
| P2O5 | 0.04 | WT% | ICPAES | |
| LOI | 0.6 | WT% | ICPAES | |
| TOTAL | 101.35 | WT% | ICPAES | |
| BA | 50 | PPM | INAA | |
| CO | 2.5 | PPM | INAA | |
| CR | 95 | PPM | INAA | |
| CS | 4 | PPM | INAA | |
| HF | 4 | PPM | INAA | |
| MO | 2.5 | PPM | INAA | |
| NI | 25 | PPM | INAA | |
| RB | 180 | PPM | INAA | |
| SC | 3.6 | PPM | INAA | |
| SN | 2.5 | PPM | XRF | |
| TA | 2 | PPM | INAA | |
| TH | 20 | PPM | INAA | |
| U | 4.1 | PPM | INAA | |
| ZN | 25 | PPM | INAA | |
| LA | 30 | PPM | INAA | |
| CE | 51 | PPM | INAA | |
| ND | 20 | PPM | INAA | |
| SM | 5.1 | PPM | INAA | |
| EU | 0.2 | PPM | INAA | |
| TB | 1.2 | PPM | INAA | |
| YB | 5.23 | PPM | INAA | |
| LU | 0.86 | PPM | INAA |