Sample 2026
NavDat sample number 53355 · ANDESITE
Sample
| Sample ID | 2026 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.6967 |
|---|---|
| Longitude | -121.727 |
| 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 | 57.3 | WT% | XRF | |
| AL2O3 | 19.8 | WT% | XRF | |
| FEOT | 6.56 | WT% | XRF | |
| MGO | 3.84 | WT% | XRF | |
| CAO | 6.72 | WT% | XRF | |
| NA2O | 3.63 | WT% | XRF | |
| K2O | 0.95 | WT% | XRF | |
| TIO2 | 0.81 | WT% | XRF | |
| P2O5 | 0.23 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| TOTAL | 98.12 | WT% | XRF | |
| LOI | 1.69 | WT% | XRF | |
| RB | 11 | PPM | XRF | |
| SR | 625 | PPM | XRF | |
| Y | 13 | PPM | XRF | |
| ZR | 111 | PPM | XRF | |
| NB | 6 | PPM | XRF | |
| BA | 574 | PPM | XRF | |
| NI | 23 | PPM | XRF | |
| CU | 66 | PPM | XRF | |
| ZN | 75 | PPM | XRF |