Sample BFC 129
NavDat sample number 43340 · RHYOLITE
Sample
| Sample ID | BFC 129 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.907 |
|---|---|
| Longitude | -106.832 |
| Location | La Garita Mtns. |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 28.5 | 28.4 | 28.6 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 67.82 | WT% | XRF | |
| TIO2 | 0.468 | WT% | XRF | |
| AL2O3 | 15.25 | WT% | XRF | |
| FE2O3 | 3.97 | WT% | XRF | |
| MGO | 1.23 | WT% | XRF | |
| CAO | 3.05 | WT% | XRF | |
| NA2O | 3.79 | WT% | XRF | |
| K2O | 3.943 | WT% | XRF | |
| P2O5 | 0.101 | WT% | XRF | |
| MNO | 0.197 | WT% | XRF | |
| LOI | 0.7 | WT% | XRF | |
| TOTAL | 99.819 | WT% | XRF | |
| ZN | 56 | PPM | XRF | |
| RB | 117 | PPM | XRF | |
| SR | 456 | PPM | XRF | |
| Y | 21 | PPM | XRF | |
| ZR | 180 | PPM | XRF | |
| NB | 17 | PPM | XRF | |
| PB | 17 | PPM | XRF | |
| TH | 14 | PPM | XRF | |
| BA | 638 | PPM | XRF | |
| LA | 42 | PPM | XRF | |
| CE | 73 | PPM | XRF | |
| ND | 26 | PPM | XRF | |
| CU | 11 | PPM | XRF | |
| V | 51 | PPM | XRF | |
| U | 4 | PPM | XRF | |
| CR | 5 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| NI | 6 | PPM | XRF | |
| TH | 13.8 | PPM | INAA | |
| U | 4.3 | PPM | INAA | |
| LA | 43.6 | PPM | INAA | |
| CE | 82 | PPM | INAA | |
| ND | 31.1 | PPM | INAA | |
| SM | 5.4 | PPM | INAA | |
| EU | 1.17 | PPM | INAA | |
| TB | 0.65 | PPM | INAA | |
| YB | 2.26 | PPM | INAA | |
| LU | 0.33 | PPM | INAA | |
| TA | 1.1 | PPM | INAA | |
| HF | 5 | PPM | INAA | |
| SC | 6.6 | PPM | INAA | |
| CO | 7.1 | PPM | INAA | |
| ZN | 56 | PPM | INAA |