← Search
Sample R-40
NavDat sample number 46033 · RHYOLITE
Sample
| Sample ID | R-40 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.843 |
|---|
| Longitude | -106.849 |
|---|
| Location | Farmer's Ck. |
|---|
| State / province | COLORADO |
|---|
| Formation | Bachelor Caldera Cycle, Intracaldera Bachelor Member |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 27.35 |
|
27.25 |
27.45 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 74.91 | | WT% | XRF |
| TIO2 | 0.185985 | | WT% | XRF |
| AL2O3 | 14.1555 | | WT% | XRF |
| FE2O3 | 1.21704 | | WT% | XRF |
| MGO | 0.113658 | | WT% | XRF |
| CAO | 0.692279 | | WT% | XRF |
| NA2O | 3.71971 | | WT% | XRF |
| K2O | 5.26958 | | WT% | XRF |
| P2O5 | 0.0826601 | | WT% | XRF |
| MNO | 0.020665 | | WT% | XRF |
| LOI | 3.2 | | WT% | XRF |
| TOTAL | 100.367 | | WT% | XRF |
