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Sample BOW-3
NavDat sample number 67136 · DACITE
Sample
| Sample ID | BOW-3 |
|---|
| Rock name | DACITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
Location
| Latitude | 39.08 |
|---|
| Longitude | -106.58 |
|---|
| Location | grizzly peak cauldron |
|---|
| State / province | COLORADO |
|---|
| Formation | Post-resurgent intrusions of Grizzly Peak Cauldron |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
| 33 |
|
29.7 |
36.3 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
| SIO2 | 65.7 | | WT% | XRF |
| AL2O3 | 16.18 | | WT% | XRF |
| FE2O3 | 4.17 | | WT% | XRF |
| MGO | 2.21 | | WT% | XRF |
| CAO | 2.81 | | WT% | XRF |
| NA2O | 4.46 | | WT% | XRF |
| K2O | 2.4 | | WT% | XRF |
| TIO2 | 0.56 | | WT% | XRF |
| P2O5 | 0.22 | | WT% | XRF |
| MNO | 0.07 | | WT% | XRF |
| NB | 14 | | PPM | XRF |
| ZR | 230 | | PPM | XRF |
| Y | 25 | | PPM | XRF |
| SR | 639 | | PPM | XRF |
| RB | 75 | | PPM | XRF |
| BA | 911 | | PPM | XRF |