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Sample 85L-27
NavDat sample number 45751 · DACITE
Sample
| Sample ID | 85L-27 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.932 |
|---|
| Longitude | -106.933 |
|---|
| Location | north of Nelson Mountain |
|---|
| State / province | COLORADO |
|---|
| Formation | Nelson Mountain Caldera cycle, volcanics of Stewart Peak |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 26.5 |
|
26.1 |
26.9 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 61.75 | | WT% | XRF |
| TIO2 | 0.841558 | | WT% | XRF |
| AL2O3 | 16.5067 | | WT% | XRF |
| FE2O3 | 6.31676 | | WT% | XRF |
| MGO | 1.35866 | | WT% | XRF |
| CAO | 4.51197 | | WT% | XRF |
| NA2O | 3.59944 | | WT% | XRF |
| K2O | 3.69069 | | WT% | XRF |
| P2O5 | 0.385292 | | WT% | XRF |
| MNO | 0.0608356 | | WT% | XRF |
| LOI | 1.36 | | WT% | XRF |
| TOTAL | 99.02 | | WT% | XRF |
| ZN | 90 | | PPM | XRF |
| RB | 111 | | PPM | XRF |
| SR | 656 | | PPM | XRF |
| Y | 28 | | PPM | XRF |
| ZR | 202 | | PPM | XRF |
| NB | 23 | | PPM | XRF |
| PB | 20 | | PPM | XRF |
| CU | 15 | | PPM | XRF |
| NI | 49 | | PPM | XRF |
