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Sample EC41
NavDat sample number 7803 · RHYOLITE
Sample
| Sample ID | EC41 |
|---|
| 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 |
|---|
| 30.5 |
|
30.3 |
30.7 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 70.15 | | WT% | XRF |
| TIO2 | 0.54 | | WT% | XRF |
| AL2O3 | 15.09 | | WT% | XRF |
| FE2O3 | 2.06 | | WT% | XRF |
| FEO | 0.68 | | WT% | XRF |
| MNO | 0.05 | | WT% | XRF |
| CAO | 1.12 | | WT% | XRF |
| NA2O | 4.3 | | WT% | XRF |
| MGO | 0.45 | | WT% | XRF |
| K2O | 5.43 | | WT% | XRF |
| P2O5 | 0.14 | | WT% | XRF |
| LOI | 1.48 | | WT% | XRF |
| Y | 44 | | PPM | XRF |
| SR | 186 | | PPM | XRF |
| RB | 175 | | PPM | XRF |
| TH | 17 | | PPM | XRF |
| ZR | 430 | | PPM | XRF |
| NB | 53 | | PPM | XRF |
