Sample MH-20
NavDat sample number 54802 · DACITE
Sample
| Sample ID | MH-20 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 45.395 |
|---|---|
| Longitude | -121.826 |
| State / province | Oregon |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 14 | 12 | 16 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 63.41 | WT% | XRF | |
| TIO2 | 0.91 | WT% | XRF | |
| AL2O3 | 17.83 | WT% | XRF | |
| FEOT | 4.8 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| MGO | 2.05 | WT% | XRF | |
| CAO | 6.01 | WT% | XRF | |
| NA2O | 2.24 | WT% | XRF | |
| K2O | 2.52 | WT% | XRF | |
| P2O5 | 0.11 | WT% | XRF | |
| TOTAL | 99.99 | WT% | XRF | |
| BA | 540 | PPM | INAA | |
| LA | 13.8 | PPM | INAA | |
| CE | 19.9 | PPM | INAA | |
| RB | 59 | PPM | INAA | |
| SR | 270 | PPM | INAA | |
| CO | 19.1 | PPM | INAA | |
| CR | 99 | PPM | INAA | |
| SC | 17.47 | PPM | INAA | |
| ZN | 43 | PPM | INAA |