Sample 87-110
NavDat sample number 16986 · RHYOLITE
Sample
| Sample ID | 87-110 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.899 |
|---|---|
| Longitude | -106.9 |
| Location | First Fork, Willow Ck., 11,000' |
| State / province | COLORADO |
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 | 73.8561 | WT% | XRF | |
| TIO2 | 0.281932 | WT% | XRF | |
| AL2O3 | 14.0463 | WT% | XRF | |
| FE2O3 | 1.60097 | WT% | XRF | |
| MGO | 0.594071 | WT% | XRF | |
| CAO | 1.08745 | WT% | XRF | |
| NA2O | 3.46374 | WT% | XRF | |
| K2O | 5.6185 | WT% | XRF | |
| P2O5 | 0.080552 | WT% | XRF | |
| MNO | 0.060414 | WT% | XRF | |
| LOI | 0.82 | WT% | XRF | |
| TOTAL | 100.69 | WT% | XRF | |
| ZN | 161 | PPM | XRF | |
| RB | 129 | PPM | XRF | |
| SR | 32 | PPM | XRF | |
| Y | 193 | PPM | XRF | |
| TH | 565 | PPM | XRF | |
| BA | 61 | PPM | XRF | |
| LA | 82 | PPM | XRF | |
| ND | 1 | PPM | XRF | |
| CU | 11 | PPM | XRF | |
| NI | 4.53 | PPM | XRF | |
| TH | 19.9 | PPM | INAA | |
| U | 5.2 | PPM | INAA | |
| LA | 55.5 | PPM | INAA | |
| CE | 94.1 | PPM | INAA | |
| SM | 7 | PPM | INAA | |
| EU | 0.9 | PPM | INAA | |
| GD | 6.8 | PPM | INAA | |
| YB | 3.22 | PPM | INAA | |
| LU | 0.45 | PPM | INAA | |
| TA | 1.63 | PPM | INAA | |
| HF | 3.19 | PPM | INAA | |
| SC | 4.6 | PPM | INAA |