Sample HS-82-38
NavDat sample number 19672 · SYENITE
Sample
| Sample ID | HS-82-38 |
|---|---|
| Rock name | SYENITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | surface sample, Dakota Hill Porphyry |
Location
| Latitude | 39.865 |
|---|---|
| Longitude | -105.555 |
| Location | Apex |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 60 | 55 | 65 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 62 | WT% | UNKNOWN | |
| LA | 86.2 | PPM | ICPAES | |
| CE | 187 | PPM | ICPAES | |
| PR | 22.4 | PPM | ICPAES | |
| ND | 79.1 | PPM | ICPAES | |
| ND | 82.62 | PPM | TIMS | |
| SM | 12.9 | PPM | ICPAES | |
| SM | 13.03 | PPM | TIMS | |
| EU | 3.15 | PPM | ICPAES | |
| GD | 8.7 | PPM | ICPAES | |
| DY | 5.3 | PPM | ICPAES | |
| HO | 0.97 | PPM | ICPAES | |
| ER | 2.2 | PPM | ICPAES | |
| TM | 0.39 | PPM | ICPAES | |
| YB | 2.82 | PPM | ICPAES | |
| LU | 0.41 | PPM | ICPAES | |
| ND143_ND144 | 0.512373 | TIMS | ||
| ND143_ND144_INITIAL | 0.512336 | TIMS | ||
| SR87_SR86_INITIAL | 0.70546 | TIMS |