Sample 1918
NavDat sample number 53272 · ANDESITE
Sample
| Sample ID | 1918 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.6363 |
|---|---|
| Longitude | -121.74 |
| 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 | 60.1 | WT% | XRF | |
| AL2O3 | 16.9 | WT% | XRF | |
| FEOT | 6.96 | WT% | XRF | |
| MGO | 2.62 | WT% | XRF | |
| CAO | 5.66 | WT% | XRF | |
| NA2O | 4.14 | WT% | XRF | |
| K2O | 2.05 | WT% | XRF | |
| TIO2 | 1.15 | WT% | XRF | |
| P2O5 | 0.31 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| TOTAL | 99.23 | WT% | XRF | |
| LOI | 0.96 | WT% | XRF | |
| RB | 42 | PPM | XRF | |
| SR | 474 | PPM | XRF | |
| Y | 24 | PPM | XRF | |
| ZR | 189 | PPM | XRF | |
| NB | 7 | PPM | XRF | |
| BA | 571 | PPM | XRF | |
| NI | 8 | PPM | XRF | |
| CU | 43 | PPM | XRF | |
| ZN | 80 | PPM | XRF |