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Sample EC42
NavDat sample number 7806 · RHYOLITE
Sample
| Sample ID | EC42 |
|---|
| 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 | 75.77 | | WT% | XRF |
| TIO2 | 0.21 | | WT% | XRF |
| AL2O3 | 12.67 | | WT% | XRF |
| FE2O3 | 1.6 | | WT% | XRF |
| MNO | 0.03 | | WT% | XRF |
| CAO | 0.57 | | WT% | XRF |
| NA2O | 3.66 | | WT% | XRF |
| MGO | 0.17 | | WT% | XRF |
| K2O | 5.27 | | WT% | XRF |
| P2O5 | 0.06 | | WT% | XRF |
| LOI | 0.96 | | WT% | XRF |
| Y | 41 | | PPM | XRF |
| SR | 80 | | PPM | XRF |
| RB | 202 | | PPM | XRF |
| TH | 22 | | PPM | XRF |
| ZR | 200 | | PPM | XRF |
| NB | 30 | | PPM | XRF |
| SR87_SR86 | 0.7096 | | | XRF |
