Sample LR87-719-6
NavDat sample number 30138 · TUFF
Sample
| Sample ID | LR87-719-6 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.9156 |
|---|---|
| Longitude | -106.96 |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 31.5 | 28 | 35 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 70.7 | WT% | XRF | |
| TIO2 | 0.4 | WT% | XRF | |
| AL2O3 | 14.29 | WT% | XRF | |
| FE2O3 | 2.9 | WT% | XRF | |
| MGO | 0.58 | WT% | XRF | |
| CAO | 1.7 | WT% | XRF | |
| NA2O | 3.4 | WT% | XRF | |
| K2O | 5.2 | WT% | XRF | |
| P2O5 | 0.15 | WT% | XRF | |
| MNO | 0.03 | WT% | XRF | |
| LOI | 0.33 | WT% | XRF | |
| TOTAL | 99.35 | WT% | XRF | |
| ZN | 52 | PPM | XRF | |
| RB | 152 | PPM | XRF | |
| SR | 316 | PPM | XRF | |
| Y | 28 | PPM | XRF | |
| ZR | 191.5 | PPM | XRF | |
| NB | 18.5 | PPM | XRF | |
| PB | 35 | PPM | XRF | |
| TH | 22.5 | PPM | XRF | |
| BA | 810 | PPM | XRF | |
| LA | 49 | PPM | XRF | |
| CE | 84 | PPM | XRF | |
| ND | 29 | PPM | XRF |