Sample PM-20
NavDat sample number 31326 · ANDESITE
Sample
| Sample ID | PM-20 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 44.3721 |
|---|---|
| Longitude | -120.503 |
| State / province | Oregon |
| Formation | Clarno Formation |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 45.6 | 37.4 | 53.8 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 60.33 | WT% | XRF | |
| TIO2 | 1.01 | WT% | XRF | |
| AL2O3 | 16.98 | WT% | SRC AND AAS | |
| FEO | 6.62 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| MGO | 4.07 | WT% | SRC AND AAS | |
| CAO | 6.38 | WT% | XRF | |
| NA2O | 3.57 | WT% | SRC AND AAS | |
| K2O | 1.37 | WT% | XRF | |
| P2O5 | 0.2 | WT% | XRF | |
| TOTAL | 100.66 | WT% | XRF | |
| RB | 56 | PPM | XRF | |
| SR | 307 | PPM | XRF | |
| Y | 30 | PPM | XRF | |
| ZR | 236 | PPM | XRF | |
| BA | 501 | PPM | XRF | |
| V | 137 | PPM | XRF | |
| CR | 318 | PPM | XRF | |
| NI | 38 | PPM | XRF |