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Sample 98L-4
NavDat sample number 45925 · DACITE
Sample
| Sample ID | 98L-4 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.654 |
|---|
| Longitude | -106.962 |
|---|
| Location | below Snowshoe Mtn Tuff |
|---|
| State / province | COLORADO |
|---|
| Formation | South River Caldera Cycle, Silver River volcanics |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 27 |
|
26.9 |
27.1 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 65.46 | | WT% | XRF |
| TIO2 | 0.637155 | | WT% | XRF |
| AL2O3 | 16.5345 | | WT% | XRF |
| FE2O3 | 3.99264 | | WT% | XRF |
| MGO | 1.08733 | | WT% | XRF |
| CAO | 3.36361 | | WT% | XRF |
| NA2O | 3.89305 | | WT% | XRF |
| K2O | 3.79956 | | WT% | XRF |
| P2O5 | 0.294697 | | WT% | XRF |
| MNO | 0.0680852 | | WT% | XRF |
| LOI | 1.58 | | WT% | XRF |
| TOTAL | 99.132 | | WT% | XRF |
| ZN | 97 | | PPM | XRF |
| RB | 98 | | PPM | XRF |
| SR | 734 | | PPM | XRF |
| Y | 20 | | PPM | XRF |
| ZR | 214 | | PPM | XRF |
| NB | 12 | | PPM | XRF |
| BA | 1280 | | PPM | XRF |
| CU | 30 | | PPM | XRF |
| NI | 13 | | PPM | XRF |
