Sample 9-12-92-8
NavDat sample number 92305 · TRACHYTE
Sample
| Sample ID | 9-12-92-8 |
|---|---|
| Rock name | TRACHYTE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 44.355 |
|---|---|
| Longitude | -103.901 |
| Location | Elk Mt W |
| State / province | South Dakota |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 52 | 46 | 58 |
Analyses
WHOLE ROCK
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 59.2 | WT% | XRF | |
| TIO2 | 0.16 | WT% | XRF | |
| AL2O3 | 19.5 | WT% | XRF | |
| FE2O3 | 2.31 | WT% | XRF | |
| FEOT | 2.57 | WT% | XRF | |
| FEO | 0.31 | WT% | XRF | |
| MNO | 0.16 | WT% | XRF | |
| MGO | 0.16 | WT% | XRF | |
| CAO | 1.5 | WT% | XRF | |
| NA2O | 7.42 | WT% | XRF | |
| K2O | 5.5 | WT% | XRF | |
| P2O5 | -0.05 | WT% | XRF | |
| CO2 | 0.66 | WT% | XRF | |
| LOI | 3.79 | WT% | XRF | |
| NB | 38 | PPM | XRF | |
| RB | 144 | PPM | XRF | |
| SR | 1200 | PPM | XRF | |
| ZR | 480 | PPM | XRF | |
| Y | 24 | PPM | XRF | |
| BA | 510 | PPM | XRF | |
| CE | 245 | PPM | XRF | |
| LA | 172 | PPM | XRF | |
| ZN | 150 | PPM | XRF | |
| H2O_PLUS | 2.42 | WT% | UNKNOWN | |
| H2O_MINUS | 0.51 | WT% | UNKNOWN | |
| CO2 | 0.66 | WT% | UNKNOWN | |
| TH | 59.8 | PPM | ICPMS | |
| U | 5.84 | PPM | ICPMS | |
| LA | 160 | PPM | ICPMS | |
| CE | 240 | PPM | ICPMS | |
| PR | 21 | PPM | ICPMS | |
| ND | 60 | PPM | ICPMS | |
| SM | 8.1 | PPM | ICPMS | |
| EU | 1.9 | PPM | ICPMS | |
| GD | 6.2 | PPM | ICPMS | |
| TB | 0.71 | PPM | ICPMS | |
| DY | 3.8 | PPM | ICPMS | |
| HO | 0.74 | PPM | ICPMS | |
| ER | 2.2 | PPM | ICPMS | |
| TM | 0.36 | PPM | ICPMS | |
| YB | 2.4 | PPM | ICPMS |