Sample 9-27-91-8b
NavDat sample number 92271 · TRACHYTE
Sample
| Sample ID | 9-27-91-8b |
|---|---|
| Rock name | TRACHYTE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Isotopic data attributed to dated samples (Table 3-1 (p.43)) as indicated by author in thesis text (even though sample numbers for samples with isotopic data are different from samples numbers of dated samples). |
Location
| Latitude | 44.3376 |
|---|---|
| Longitude | -103.688 |
| Location | Anchor Hill |
| State / province | South Dakota |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 55.03 | 55.88 | 55.18 |
Analyses
WHOLE ROCK
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 58.47 | WT% | XRF | |
| TIO2 | 0.69 | WT% | XRF | |
| AL2O3 | 17.87 | WT% | XRF | |
| FE2O3 | 5.53 | WT% | XRF | |
| FEOT | 6.15 | WT% | XRF | |
| FEO | 0.62 | WT% | XRF | |
| MNO | 0.21 | WT% | XRF | |
| MGO | 0.83 | WT% | XRF | |
| CAO | 4.6 | WT% | XRF | |
| NA2O | 5.32 | WT% | XRF | |
| K2O | 4.87 | WT% | XRF | |
| P2O5 | 0.15 | WT% | XRF | |
| LOI | 0.6 | WT% | XRF | |
| NB | 28 | PPM | XRF | |
| RB | 87 | PPM | XRF | |
| SR | 2440 | PPM | XRF | |
| ZR | 449 | PPM | XRF | |
| Y | 18 | PPM | XRF | |
| BA | 1510 | PPM | XRF | |
| CE | 237 | PPM | XRF | |
| TH | 26.1 | PPM | ICPMS | |
| U | 5.46 | PPM | ICPMS | |
| LA | 127 | PPM | ICPMS | |
| CE | 237 | PPM | ICPMS | |
| PR | 30.2 | PPM | ICPMS | |
| ND | 111 | PPM | ICPMS | |
| SM | 19.6 | PPM | ICPMS | |
| EU | 5 | PPM | ICPMS | |
| GD | 14.8 | PPM | ICPMS | |
| TB | 1.87 | PPM | ICPMS | |
| DY | 7.69 | PPM | ICPMS | |
| HO | 1.36 | PPM | ICPMS | |
| ER | 3.86 | PPM | ICPMS | |
| TM | 0.49 | PPM | ICPMS | |
| YB | 3.3 | PPM | ICPMS | |
| LU | 0.5 | PPM | ICPMS | |
| Y | 36.1 | PPM | ICPMS | |
| RB | 66.4 | PPM | TIMS | |
| SR | 2438.4 | PPM | TIMS | |
| SR87_SR86 | 0.705839 | TIMS | ||
| SM | 17.12 | PPM | TIMS | |
| ND | 102.4 | PPM | TIMS | |
| ND143_ND144 | 0.512432 | TIMS |