Sample HS-8247
NavDat sample number 19681 · RHYOLITE
Sample
| Sample ID | HS-8247 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | surface sample |
Location
| Latitude | 39.3644 |
|---|---|
| Longitude | -106.213 |
| Location | Chalk Mountain |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27 | 22 | 32 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 71.6 | WT% | UNKNOWN | |
| LA | 44.8 | PPM | ICPAES | |
| CE | 84.5 | PPM | ICPAES | |
| PR | 9.4 | PPM | ICPAES | |
| ND | 31.2 | PPM | ICPAES | |
| ND | 33.33 | PPM | TIMS | |
| SM | 5.7 | PPM | ICPAES | |
| SM | 5.931 | PPM | TIMS | |
| EU | 0.66 | PPM | ICPAES | |
| GD | 4.4 | PPM | ICPAES | |
| DY | 3.6 | PPM | ICPAES | |
| HO | 0.71 | PPM | ICPAES | |
| ER | 2.1 | PPM | ICPAES | |
| TM | 0.36 | PPM | ICPAES | |
| YB | 3.04 | PPM | ICPAES | |
| LU | 0.43 | PPM | ICPAES | |
| ND143_ND144 | 0.512067 | TIMS | ||
| ND143_ND144_INITIAL | 0.512048 | TIMS | ||
| SR87_SR86_INITIAL | 0.70851 | TIMS |