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Sample DS85-137
NavDat sample number 45813 · RHYOLITE
Sample
| Sample ID | DS85-137 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 38.019 |
|---|
| Longitude | -107.003 |
|---|
| Location | Mineral Mountain area |
|---|
| 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 | 63.6 | | WT% | XRF |
| TIO2 | 0.655449 | | WT% | XRF |
| AL2O3 | 16.2838 | | WT% | XRF |
| FE2O3 | 5.60204 | | WT% | XRF |
| MGO | 1.45428 | | WT% | XRF |
| CAO | 4.69056 | | WT% | XRF |
| NA2O | 3.37966 | | WT% | XRF |
| K2O | 3.60497 | | WT% | XRF |
| P2O5 | 0.307242 | | WT% | XRF |
| MNO | 0.122897 | | WT% | XRF |
| LOI | 2.35 | | WT% | XRF |
| TOTAL | 99.7 | | WT% | XRF |
| ZN | 52 | | PPM | XRF |
| RB | 111 | | PPM | XRF |
| SR | 657 | | PPM | XRF |
| Y | 23 | | PPM | XRF |
| ZR | 166 | | PPM | XRF |
| NB | 16 | | PPM | XRF |
| PB | 39 | | PPM | XRF |
| CU | 16 | | PPM | XRF |
| NI | 10 | | PPM | XRF |
