Sample BC-7
NavDat sample number 31255 · ANDESITE
Sample
| Sample ID | BC-7 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 44.5666 |
|---|---|
| Longitude | -120.329 |
| 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 | 60.54 | WT% | XRF | |
| TIO2 | 1.12 | WT% | XRF | |
| AL2O3 | 15.68 | WT% | SRC AND AAS | |
| FEO | 7.17 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| MGO | 4.07 | WT% | SRC AND AAS | |
| CAO | 6.75 | WT% | XRF | |
| NA2O | 3.4 | WT% | SRC AND AAS | |
| K2O | 1.13 | WT% | XRF | |
| P2O5 | 0.23 | WT% | XRF | |
| TOTAL | 100.2 | WT% | XRF | |
| RB | 40 | PPM | XRF | |
| SR | 339 | PPM | XRF | |
| Y | 28 | PPM | XRF | |
| ZR | 243 | PPM | XRF | |
| BA | 383 | PPM | XRF | |
| V | 149 | PPM | XRF | |
| CR | 111 | PPM | XRF | |
| NI | 55 | PPM | XRF |