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Sample DS88-011
NavDat sample number 45814 · RHYOLITE
Sample
| Sample ID | DS88-011 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 38.027 |
|---|
| Longitude | -106.986 |
|---|
| Location | NW of Bondholder, W of Spring Cr, mid-section 10.020' |
|---|
| 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 | 62.41 | | WT% | XRF |
| TIO2 | 0.679896 | | WT% | XRF |
| AL2O3 | 16.3378 | | WT% | XRF |
| FE2O3 | 6.11906 | | WT% | XRF |
| MGO | 1.7657 | | WT% | XRF |
| CAO | 4.54617 | | WT% | XRF |
| NA2O | 4.02864 | | WT% | XRF |
| K2O | 4.00834 | | WT% | XRF |
| P2O5 | 0.304431 | | WT% | XRF |
| MNO | 0.111625 | | WT% | XRF |
| LOI | 1.46 | | WT% | XRF |
| TOTAL | 100.312 | | WT% | XRF |
| ZN | 80 | | PPM | XRF |
| RB | 101 | | PPM | XRF |
| SR | 605 | | PPM | XRF |
| Y | 20 | | PPM | XRF |
| ZR | 181 | | PPM | XRF |
| NB | 14 | | PPM | XRF |
| PB | 31 | | PPM | XRF |
| TH | 9 | | PPM | XRF |
| BA | 1000 | | PPM | XRF |
| LA | 41 | | PPM | XRF |
| CE | 81 | | PPM | XRF |
| ND | 33 | | PPM | XRF |
