Sample 497
NavDat sample number 52880 · ANDESITE
Sample
| Sample ID | 497 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.535 |
|---|---|
| Longitude | -121.795 |
| 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 | 59.1 | WT% | XRF | |
| AL2O3 | 18 | WT% | XRF | |
| FEOT | 5.97 | WT% | XRF | |
| MGO | 3.74 | WT% | XRF | |
| CAO | 6.89 | WT% | XRF | |
| NA2O | 3.74 | WT% | XRF | |
| K2O | 1.48 | WT% | XRF | |
| TIO2 | 0.74 | WT% | XRF | |
| P2O5 | 0.2 | WT% | XRF | |
| MNO | 0.1 | WT% | XRF | |
| TOTAL | 99.83 | WT% | XRF | |
| LOI | 0.36 | WT% | XRF | |
| NA2O | 3.74 | WT% | FPHOT | |
| K2O | 1.444 | WT% | FPHOT | |
| RB | 46 | PPM | XRF | |
| SR | 573 | PPM | XRF | |
| Y | 21 | PPM | XRF | |
| ZR | 145 | PPM | XRF | |
| NB | 4 | PPM | XRF | |
| BA | 511 | PPM | XRF | |
| NI | 56 | PPM | XRF | |
| CU | 55 | PPM | XRF | |
| ZN | 54 | PPM | XRF | |
| CR | 47 | PPM | XRF |