Sample US90
NavDat sample number 30945 · SHOSHONITE
Sample
| Sample ID | US90 |
|---|---|
| Rock name | SHOSHONITE |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
Location
| Latitude | 40.35 |
|---|---|
| Longitude | -106.7 |
| State / province | Colorado |
| Location comment | flow directly on Precambrian basement alont Route 40, west of Rabbit Ears Pass |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 22.8 | 22.5 | 23.1 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 54.66 | WT% | XRF | |
| TIO2 | 1.61 | WT% | XRF | |
| AL2O3 | 16.63 | WT% | XRF | |
| FE2O3 | 9.17 | WT% | XRF | |
| MNO | 0.1 | WT% | XRF | |
| MGO | 3.77 | WT% | XRF | |
| CAO | 6.95 | WT% | XRF | |
| NA2O | 4.16 | WT% | XRF | |
| K2O | 2.34 | WT% | XRF | |
| P2O5 | 0.54 | WT% | XRF | |
| LOI | 0.63 | WT% | XRF | |
| BA | 1494 | PPM | INAA | |
| CR | 53 | PPM | INAA | |
| HF | 5.1 | PPM | INAA | |
| NB | 24.3 | PPM | INAA | |
| NI | 46 | PPM | INAA | |
| RB | 34 | PPM | INAA | |
| SC | 14.4 | PPM | INAA | |
| SR | 1219 | PPM | INAA | |
| TA | 1.29 | PPM | INAA | |
| TH | 7 | PPM | INAA | |
| U | 1.8 | PPM | INAA | |
| V | 152 | PPM | INAA | |
| W | 1.2 | PPM | INAA | |
| Y | 24.3 | PPM | INAA | |
| ZN | 88 | PPM | INAA | |
| ZR | 174 | PPM | INAA | |
| LA | 55 | PPM | INAA | |
| CE | 107 | PPM | INAA | |
| ND | 49 | PPM | INAA | |
| SM | 8.5 | PPM | INAA | |
| EU | 2.5 | PPM | INAA | |
| GD | 6.9 | PPM | INAA | |
| TB | 1.08 | PPM | INAA | |
| YB | 1.28 | PPM | INAA | |
| LU | 0.19 | PPM | INAA | |
| SR87_SR86 | 0.704221 | MS | ||
| ND143_ND144 | 0.512398 | MS |