Sample 1912
NavDat sample number 53414 · ANDESITE
Sample
| Sample ID | 1912 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.3542 |
|---|---|
| Longitude | -121.532 |
| 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 | 57.8 | WT% | XRF | |
| AL2O3 | 17.4 | WT% | XRF | |
| FEOT | 7.02 | WT% | XRF | |
| MGO | 4.64 | WT% | XRF | |
| CAO | 7.18 | WT% | XRF | |
| NA2O | 3.37 | WT% | XRF | |
| K2O | 1.29 | WT% | XRF | |
| TIO2 | 0.81 | WT% | XRF | |
| P2O5 | 0.28 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| TOTAL | 98.26 | WT% | XRF | |
| LOI | 1.11 | WT% | XRF | |
| RB | 31 | PPM | XRF | |
| SR | 598 | PPM | XRF | |
| Y | 45 | PPM | XRF | |
| ZR | 108 | PPM | XRF | |
| NB | 5 | PPM | XRF | |
| BA | 432 | PPM | XRF | |
| NI | 57 | PPM | XRF | |
| CU | 69 | PPM | XRF | |
| ZN | 79 | PPM | XRF |