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Sample LR88-539
NavDat sample number 46030 · PYROCLASTIC-FALL
Sample
| Sample ID | LR88-539 |
|---|
| Rock name | PYROCLASTIC-FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.895 |
|---|
| Longitude | -106.911 |
|---|
| Location | First Fork, Willow Ck., 9760' |
|---|
| State / province | COLORADO |
|---|
| Formation | Bachelor Caldera Cycle, Intracaldera Bachelor Member, lower devitrified 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 | 73.01 | | WT% | XRF |
| TIO2 | 0.268726 | | WT% | XRF |
| AL2O3 | 14.2114 | | WT% | XRF |
| FE2O3 | 2.23249 | | WT% | XRF |
| MGO | 0.42376 | | WT% | XRF |
| CAO | 1.54 | | WT% | XRF |
| NA2O | 3.82417 | | WT% | XRF |
| K2O | 4.75437 | | WT% | XRF |
| P2O5 | 0.0826848 | | WT% | XRF |
| MNO | 0.051678 | | WT% | XRF |
| LOI | 3.26 | | WT% | XRF |
| TOTAL | 100.399 | | WT% | XRF |
