← Search
Sample DS87-012
NavDat sample number 46077 · RHYOLITE
Sample
| Sample ID | DS87-012 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.638 |
|---|
| Longitude | -106.799 |
|---|
| Location | NE Metroz Mtn, uppermost, in road cut |
|---|
| State / province | COLORADO |
|---|
| Formation | La Garita Caldera cycle, Fish Canyon tuff, outflow sheet |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 28.5 |
|
28.4 |
28.6 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 65.34 | | WT% | XRF |
| TIO2 | 0.548757 | | WT% | XRF |
| AL2O3 | 15.9546 | | WT% | XRF |
| FE2O3 | 4.84735 | | WT% | XRF |
| MGO | 1.51416 | | WT% | XRF |
| CAO | 3.69903 | | WT% | XRF |
| NA2O | 3.80065 | | WT% | XRF |
| K2O | 3.60757 | | WT% | XRF |
| P2O5 | 0.223568 | | WT% | XRF |
| MNO | 0.101622 | | WT% | XRF |
| LOI | 1.59 | | WT% | XRF |
| TOTAL | 99.6373 | | WT% | XRF |
| ZN | 83 | | PPM | XRF |
| RB | 99 | | PPM | XRF |
| SR | 544 | | PPM | XRF |
| Y | 20 | | PPM | XRF |
| ZR | 183 | | PPM | XRF |
| NB | 17 | | PPM | XRF |
| PB | 16 | | PPM | XRF |
| TH | 11 | | PPM | XRF |
| BA | 1079 | | PPM | XRF |
| LA | 47 | | PPM | XRF |
| CE | 88 | | PPM | XRF |
| ND | 48 | | PPM | XRF |
