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Sample EC12
NavDat sample number 7797 · RHYOLITE
Sample
| Sample ID | EC12 |
|---|
| 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 |
|---|
| 29.9 |
|
29.2 |
30.6 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 74.83 | | WT% | XRF |
| TIO2 | 0.26 | | WT% | XRF |
| AL2O3 | 13.22 | | WT% | XRF |
| FE2O3 | 1.42 | | WT% | XRF |
| MNO | 0.04 | | WT% | XRF |
| CAO | 0.59 | | WT% | XRF |
| NA2O | 3.87 | | WT% | XRF |
| MGO | 0.23 | | WT% | XRF |
| K2O | 5.47 | | WT% | XRF |
| P2O5 | 0.06 | | WT% | XRF |
| LOI | 1.08 | | WT% | XRF |
| Y | 47 | | PPM | XRF |
| SR | 61 | | PPM | XRF |
| RB | 226 | | PPM | XRF |
| TH | 26 | | PPM | XRF |
| ZR | 234 | | PPM | XRF |
| NB | 59 | | PPM | XRF |
