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Sample 97L-12
NavDat sample number 46157 · PYROCLASTIC-FALL
Sample
| Sample ID | 97L-12 |
|---|
| Rock name | PYROCLASTIC-FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.391 |
|---|
| Longitude | -106.985 |
|---|
| Location | NW of Snowball Park |
|---|
| State / province | COLORADO |
|---|
| Formation | Tuff of Snowball Park |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 31.25 |
|
29.5 |
33 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 75.78 | | WT% | XRF |
| TIO2 | 0.107798 | | WT% | XRF |
| AL2O3 | 13.7117 | | WT% | XRF |
| FE2O3 | 0.742381 | | WT% | XRF |
| MGO | 0.368139 | | WT% | XRF |
| CAO | 0.475937 | | WT% | XRF |
| NA2O | 3.36512 | | WT% | XRF |
| K2O | 4.88954 | | WT% | XRF |
| P2O5 | 0.0467802 | | WT% | XRF |
| MNO | 0.0538989 | | WT% | XRF |
| LOI | 1.66 | | WT% | XRF |
| TOTAL | 99.538 | | WT% | XRF |
| RB | 84 | | PPM | XRF |
| SR | 139 | | PPM | XRF |
| Y | 21 | | PPM | XRF |
| ZR | 78 | | PPM | XRF |
| NB | 17 | | PPM | XRF |
| BA | 942 | | PPM | XRF |
