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Sample DS88-012LR
NavDat sample number 45815 · RHYOLITE
Sample
| Sample ID | DS88-012LR |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 38.024 |
|---|
| Longitude | -106.986 |
|---|
| Location | Bondholder, W of Spring Creek, 10,520' |
|---|
| State / province | COLORADO |
|---|
| Formation | Nelson Mountain Caldera cycle, Nelson Mountain Tuff, Equity phase, intracaldera |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 26.75 |
|
26 |
27.5 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 63.5 | | WT% | XRF |
| TIO2 | 0.647417 | | WT% | XRF |
| AL2O3 | 16.1752 | | WT% | XRF |
| FE2O3 | 6.14533 | | WT% | XRF |
| MGO | 1.76755 | | WT% | XRF |
| CAO | 4.56275 | | WT% | XRF |
| NA2O | 3.12405 | | WT% | XRF |
| K2O | 3.7098 | | WT% | XRF |
| P2O5 | 0.267188 | | WT% | XRF |
| MNO | 0.0924882 | | WT% | XRF |
| LOI | 2.69 | | WT% | XRF |
| TOTAL | 99.9917 | | WT% | XRF |
| ZN | 81 | | PPM | XRF |
| RB | 104 | | PPM | XRF |
| SR | 634 | | PPM | XRF |
| Y | 20 | | PPM | XRF |
| ZR | 172 | | PPM | XRF |
| NB | 14 | | PPM | XRF |
| PB | 30 | | PPM | XRF |
| TH | 9 | | PPM | XRF |
| BA | 858 | | PPM | XRF |
| LA | 41 | | PPM | XRF |
| CE | 79 | | PPM | XRF |
| ND | 33 | | PPM | XRF |
