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Sample LR88-547
NavDat sample number 46032 · PYROCLASTIC-FALL
Sample
| Sample ID | LR88-547 |
|---|
| Rock name | PYROCLASTIC-FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.895 |
|---|
| Longitude | -106.9 |
|---|
| Location | First Fork, Willow Ck., 11,120' |
|---|
| State / province | COLORADO |
|---|
| Formation | Bachelor Caldera Cycle, Intracaldera Bachelor Member, uppermost tuff |
|---|
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 | 74.68 | | WT% | XRF |
| TIO2 | 0.295874 | | WT% | XRF |
| AL2O3 | 12.4471 | | WT% | XRF |
| FE2O3 | 2.05072 | | WT% | XRF |
| MGO | 0.571344 | | WT% | XRF |
| CAO | 1.35694 | | WT% | XRF |
| NA2O | 2.48943 | | WT% | XRF |
| K2O | 4.69318 | | WT% | XRF |
| P2O5 | 0.0408103 | | WT% | XRF |
| MNO | 0.0918231 | | WT% | XRF |
| LOI | 1.96 | | WT% | XRF |
| TOTAL | 98.7172 | | WT% | XRF |
