Sample 817
NavDat sample number 52945 · RHYOLITE
Sample
| Sample ID | 817 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.7023 |
|---|---|
| Longitude | -121.467 |
| State / province | California |
| Volcanic field | Medicine Lake |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.29 | 0.029 | 0.549 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 71.9 | WT% | XRF | |
| AL2O3 | 14.6 | WT% | XRF | |
| FEOT | 2.36 | WT% | XRF | |
| MGO | 0.54 | WT% | XRF | |
| CAO | 1.45 | WT% | XRF | |
| NA2O | 4.31 | WT% | XRF | |
| K2O | 4.28 | WT% | XRF | |
| TIO2 | 0.41 | WT% | XRF | |
| P2O5 | 0.07 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| TOTAL | 95.47 | WT% | XRF | |
| LOI | 4.18 | WT% | XRF | |
| NA2O | 4.37 | WT% | FPHOT | |
| K2O | 4.25 | WT% | FPHOT | |
| RB | 129 | PPM | XRF | |
| SR | 109 | PPM | XRF | |
| Y | 43 | PPM | XRF | |
| ZR | 309 | PPM | XRF | |
| NB | 10 | PPM | XRF | |
| BA | 678 | PPM | XRF | |
| NI | 11 | PPM | XRF | |
| CU | 12 | PPM | XRF | |
| ZN | 31 | PPM | XRF | |
| CR | 1 | PPM | XRF | |
| SC | 6.66 | PPM | INAA | |
| CR | 3 | PPM | INAA | |
| CO | 3.2 | PPM | INAA | |
| ZN | 42 | PPM | INAA | |
| RB | 134 | PPM | INAA | |
| SR | 124 | PPM | INAA | |
| ZR | 300 | PPM | INAA | |
| SB | 0.78 | PPM | INAA | |
| CS | 7.89 | PPM | INAA | |
| BA | 730 | PPM | INAA | |
| LA | 22.1 | PPM | INAA | |
| CE | 45 | PPM | INAA | |
| ND | 18.9 | PPM | INAA | |
| SM | 4.83 | PPM | INAA | |
| EU | 0.73 | PPM | INAA | |
| TB | 0.89 | PPM | INAA | |
| YB | 3.97 | PPM | INAA | |
| LU | 0.587 | PPM | INAA | |
| HF | 8.07 | PPM | INAA | |
| TA | 1.052 | PPM | INAA | |
| TH | 13.68 | PPM | INAA | |
| U | 4.3 | PPM | INAA |