Sample 72
NavDat sample number 12842 · ANDESITE
Sample
| Sample ID | 72 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Hammond and Korosec |
| Comment | Andesite of Marble Mountain |
Location
| Latitude | 46.0435 |
|---|---|
| Longitude | -122.089 |
| State / province | Washington |
| Volcanic field | Mount St. Helens |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.16 | 0.15 | 0.17 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 58.41 | WT% | XRF | |
| AL2O3 | 17.07 | WT% | XRF | |
| FEOT | 6.29 | WT% | XRF | |
| TIO2 | 1.02 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| MGO | 3.86 | WT% | XRF | |
| CAO | 6.65 | WT% | XRF | |
| NA2O | 4.23 | WT% | XRF | |
| K2O | 1.52 | WT% | XRF | |
| P2O5 | 0.27 | WT% | XRF | |
| H2O | 0.39 | WT% | XRF | |
| TOTAL | 99.79 | WT% | XRF | |
| LI | 14 | PPM | XRF | |
| RB | 21 | PPM | XRF | |
| CU | 37 | PPM | XRF | |
| SR | 851 | PPM | XRF | |
| BA | 283 | PPM | XRF | |
| ZN | 80 | PPM | XRF | |
| SC | 14 | PPM | XRF | |
| Y | 19 | PPM | XRF | |
| LA | 24 | PPM | XRF | |
| CE | 54 | PPM | XRF | |
| V | 131 | PPM | XRF | |
| CR | 68 | PPM | XRF | |
| NI | 56 | PPM | XRF |