Sample 685
NavDat sample number 52908 · RHYOLITE
Sample
| Sample ID | 685 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.6833 |
|---|---|
| Longitude | -121.647 |
| State / province | California |
| Volcanic field | Medicine Lake |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.391 | 0.029 | 0.549 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 75.6 | WT% | XRF | |
| AL2O3 | 13.4 | WT% | XRF | |
| FEOT | 1.19 | WT% | XRF | |
| MGO | 0.25 | WT% | XRF | |
| CAO | 0.82 | WT% | XRF | |
| NA2O | 3.85 | WT% | XRF | |
| K2O | 4.72 | WT% | XRF | |
| TIO2 | 0.19 | WT% | XRF | |
| P2O5 | 0 | WT% | XRF | |
| MNO | 0.02 | WT% | XRF | |
| TOTAL | 98.04 | WT% | XRF | |
| LOI | 0.37 | WT% | XRF | |
| FEOT | 0.79 | WT% | WET | |
| H2O_PLUS | 0.19 | WT% | WET | |
| H2O_MINUS | 0.07 | WT% | WET | |
| RB | 130 | PPM | XRF | |
| SR | 72 | PPM | XRF | |
| Y | 27 | PPM | XRF | |
| ZR | 179 | PPM | XRF | |
| NB | 10 | PPM | XRF | |
| BA | 753 | PPM | XRF | |
| SC | 4.1 | PPM | INAA | |
| CR | 1 | PPM | INAA | |
| CO | 1.2 | PPM | INAA | |
| RB | 144 | PPM | INAA | |
| ZR | 177 | PPM | INAA | |
| SB | 1.47 | PPM | INAA | |
| CS | 8.2 | PPM | INAA | |
| BA | 788 | PPM | INAA | |
| LA | 26.3 | PPM | INAA | |
| CE | 55.2 | PPM | INAA | |
| ND | 20.8 | PPM | INAA | |
| SM | 4.38 | PPM | INAA | |
| EU | 0.477 | PPM | INAA | |
| GD | 4.66 | PPM | INAA | |
| TB | 0.716 | PPM | INAA | |
| DY | 4.85 | PPM | INAA | |
| TM | 0.53 | PPM | INAA | |
| YB | 3.41 | PPM | INAA | |
| LU | 0.5 | PPM | INAA | |
| HF | 5.87 | PPM | INAA | |
| TA | 1.09 | PPM | INAA | |
| TH | 14.9 | PPM | INAA | |
| U | 4.85 | PPM | INAA | |
| MN | 270 | PPM | INAA |