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Sample EC24
NavDat sample number 7805 · RHYOLITE
Sample
| Sample ID | EC24 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | partially devitrified |
|---|
Location
| Latitude | 28.8333 |
|---|
| Longitude | -104.333 |
|---|
| Location | Sierra el Virulento |
|---|
| State / province | Chihuahua |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 33.7 |
|
33.4 |
34 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 71.07 | | WT% | XRF |
| TIO2 | 0.5 | | WT% | XRF |
| AL2O3 | 14.27 | | WT% | XRF |
| FE2O3 | 2.02 | | WT% | XRF |
| FEO | 0.57 | | WT% | XRF |
| MNO | 0.07 | | WT% | XRF |
| CAO | 1.49 | | WT% | XRF |
| NA2O | 4.36 | | WT% | XRF |
| MGO | 0.39 | | WT% | XRF |
| K2O | 5.09 | | WT% | XRF |
| P2O5 | 0.15 | | WT% | XRF |
| LOI | 1.05 | | WT% | XRF |
| Y | 43 | | PPM | XRF |
| SR | 176 | | PPM | XRF |
| RB | 166 | | PPM | XRF |
| TH | 18 | | PPM | XRF |
| ZR | 443 | | PPM | XRF |
| NB | 51 | | PPM | XRF |
| SR87_SR86 | 0.7055 | | | XRF |
