Sample EC45
NavDat sample number 7800 · DACITE
Sample
| Sample ID | EC45 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | vitrophyre |
Location
| Latitude | 28.8333 |
|---|---|
| Longitude | -104.333 |
| Location | Sierra el Virulento |
| State / province | Chihuahua |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 29.5 | 29 | 30 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 68.57 | WT% | XRF | |
| TIO2 | 0.61 | WT% | XRF | |
| AL2O3 | 15.66 | WT% | XRF | |
| FE2O3 | 2.17 | WT% | XRF | |
| FEO | 0.69 | WT% | XRF | |
| MNO | 0.09 | WT% | XRF | |
| CAO | 1.69 | WT% | XRF | |
| NA2O | 4.99 | WT% | XRF | |
| MGO | 0.66 | WT% | XRF | |
| K2O | 4.69 | WT% | XRF | |
| P2O5 | 0.18 | WT% | XRF | |
| LOI | 3.28 | WT% | XRF | |
| Y | 48 | PPM | XRF | |
| SR | 214 | PPM | XRF | |
| RB | 166 | PPM | XRF | |
| TH | 17 | PPM | XRF | |
| ZR | 584 | PPM | XRF | |
| NB | 51 | PPM | XRF | |
| LA | 68.2 | PPM | ICPMS | |
| CE | 138.7 | PPM | ICPMS | |
| ND | 59.3 | PPM | ICPMS | |
| SM | 10.8 | PPM | ICPMS | |
| EU | 2.19 | PPM | ICPMS | |
| GD | 8.86 | PPM | ICPMS | |
| DY | 8.5 | PPM | ICPMS | |
| ER | 4.97 | PPM | ICPMS | |
| YB | 4.77 | PPM | ICPMS | |
| SR87_SR86 | 0.706 | XRF |