Sample EC11
NavDat sample number 7796 · RHYOLITE
Sample
| Sample ID | EC11 |
|---|---|
| Rock name | RHYOLITE |
| 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 |
|---|---|---|---|---|---|
| 29.9 | 29.2 | 30.6 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 74.66 | WT% | XRF | |
| TIO2 | 0.28 | WT% | XRF | |
| AL2O3 | 13.49 | WT% | XRF | |
| FE2O3 | 1.48 | WT% | XRF | |
| MNO | 0.06 | WT% | XRF | |
| CAO | 0.81 | WT% | XRF | |
| NA2O | 3.92 | WT% | XRF | |
| MGO | 0.36 | WT% | XRF | |
| K2O | 4.89 | WT% | XRF | |
| P2O5 | 0.05 | WT% | XRF | |
| LOI | 2.91 | WT% | XRF | |
| Y | 46 | PPM | XRF | |
| SR | 72 | PPM | XRF | |
| RB | 219 | PPM | XRF | |
| TH | 25 | PPM | XRF | |
| ZR | 251 | PPM | XRF | |
| NB | 57 | PPM | XRF | |
| LA | 66.5 | PPM | ICPMS | |
| CE | 125.85 | PPM | ICPMS | |
| ND | 47.9 | PPM | ICPMS | |
| SM | 8.99 | PPM | ICPMS | |
| EU | 0.878 | PPM | ICPMS | |
| GD | 7.65 | PPM | ICPMS | |
| DY | 8.025 | PPM | ICPMS | |
| ER | 5.07 | PPM | ICPMS | |
| YB | 5.43 | PPM | ICPMS | |
| SR87_SR86 | 0.7097 | XRF |