Sample 81M030
NavDat sample number 18252 · DACITE
Sample
| Sample ID | 81M030 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 43.892 |
|---|---|
| Longitude | -122.552 |
| State / province | Oregon |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 21 | 17 | 25 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 69.55 | WT% | ICP | |
| TIO2 | 0.54 | WT% | ICP | |
| AL2O3 | 14.09 | WT% | ICP | |
| FEOT | 4.64 | WT% | ICP | |
| MNO | 0.13 | WT% | ICP | |
| MGO | 0.62 | WT% | ICP | |
| CAO | 2.43 | WT% | ICP | |
| NA2O | 5.7 | WT% | ICP | |
| K2O | 2.18 | WT% | AAS | |
| P2O5 | 0.12 | WT% | ICP | |
| TOTAL | 97.92 | WT% | ICP | |
| BA | 704 | PPM | ICP | |
| RB | 43 | PPM | XRF | |
| SR | 239 | PPM | XRF | |
| Y | 43 | PPM | XRF | |
| ZR | 320 | PPM | XRF | |
| NB | 17 | PPM | XRF | |
| NI | -10 | PPM | XRF | |
| V | 22 | PPM | ICP | |
| CU | 7 | PPM | XRF | |
| PB | 13 | PPM | XRF | |
| ZN | 93 | PPM | XRF |