Sample 1502
NavDat sample number 53393 · DACITE
Sample
| Sample ID | 1502 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.7517 |
|---|---|
| Longitude | -121.298 |
| State / province | California |
| Volcanic field | Medicine Lake |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 1.81 | 0.583 | 3.04 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 67.2 | WT% | XRF | |
| AL2O3 | 15.9 | WT% | XRF | |
| FEOT | 4.3 | WT% | XRF | |
| MGO | 0.92 | WT% | XRF | |
| CAO | 2.35 | WT% | XRF | |
| NA2O | 5.58 | WT% | XRF | |
| K2O | 2.6 | WT% | XRF | |
| TIO2 | 0.74 | WT% | XRF | |
| P2O5 | 0.2 | WT% | XRF | |
| MNO | 0.15 | WT% | XRF | |
| TOTAL | 94.74 | WT% | XRF | |
| LOI | 4.89 | WT% | XRF | |
| RB | 48 | PPM | XRF | |
| SR | 197 | PPM | XRF | |
| Y | 44 | PPM | XRF | |
| ZR | 334 | PPM | XRF | |
| NB | 12 | PPM | XRF | |
| BA | 686 | PPM | XRF | |
| NI | 3 | PPM | XRF | |
| CU | 2 | PPM | XRF | |
| ZN | 103 | PPM | XRF | |
| CR | 0 | PPM | XRF |