Sample 830
NavDat sample number 52947 · RHYOLITE
Sample
| Sample ID | 830 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.6837 |
|---|---|
| Longitude | -121.591 |
| 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 | 73.9 | WT% | XRF | |
| AL2O3 | 14.4 | WT% | XRF | |
| FEOT | 1.58 | WT% | XRF | |
| MGO | 0.29 | WT% | XRF | |
| CAO | 1.1 | WT% | XRF | |
| NA2O | 4.15 | WT% | XRF | |
| K2O | 4.24 | WT% | XRF | |
| TIO2 | 0.3 | WT% | XRF | |
| P2O5 | 0.05 | WT% | XRF | |
| MNO | 0.03 | WT% | XRF | |
| TOTAL | 98.39 | WT% | XRF | |
| LOI | 0.79 | WT% | XRF | |
| NA2O | 4.32 | WT% | FPHOT | |
| K2O | 4.29 | WT% | FPHOT | |
| FEOT | 0.97 | WT% | WET | |
| H2O_PLUS | 0.66 | WT% | WET | |
| H2O_MINUS | 0.21 | WT% | WET | |
| CO2 | 0.04 | WT% | WET | |
| RB | 116 | PPM | XRF | |
| SR | 117 | PPM | XRF | |
| Y | 30 | PPM | XRF | |
| ZR | 213 | PPM | XRF | |
| NB | 9 | PPM | XRF | |
| BA | 803 | PPM | XRF | |
| ZN | 30 | PPM | XRF | |
| SC | 5 | PPM | INAA | |
| CO | 1.6 | PPM | INAA | |
| ZN | 35 | PPM | INAA | |
| RB | 123 | PPM | INAA | |
| ZR | 221 | PPM | INAA | |
| SB | 1.2 | PPM | INAA | |
| CS | 6.44 | PPM | INAA | |
| BA | 839 | PPM | INAA | |
| LA | 25.9 | PPM | INAA | |
| CE | 50.3 | PPM | INAA | |
| ND | 20 | PPM | INAA | |
| SM | 4.34 | PPM | INAA | |
| EU | 0.6 | PPM | INAA | |
| GD | 5.1 | PPM | INAA | |
| TB | 0.72 | PPM | INAA | |
| TM | 0.43 | PPM | INAA | |
| YB | 3.12 | PPM | INAA | |
| LU | 0.438 | PPM | INAA | |
| HF | 5.98 | PPM | INAA | |
| TA | 1.03 | PPM | INAA | |
| TH | 13.4 | PPM | INAA | |
| U | 4.07 | PPM | INAA |