Sample US89
NavDat sample number 31432 · BASALT
Sample
| Sample ID | US89 |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Bomb in volcanic neck |
Location
| Latitude | 39.75 |
|---|---|
| Longitude | -106.93 |
| Location | YAMPA AREA |
| State / province | Colorado |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 8.75 | 7.5 | 10 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 50.9 | WT% | WDXRF | |
| MGO | 8.47 | WT% | WDXRF | |
| TIO2 | 1.91 | WT% | WDXRF | |
| AL2O3 | 14.12 | WT% | WDXRF | |
| FE2O3 | 10.34 | WT% | WDXRF | |
| MNO | 0.15 | WT% | WDXRF | |
| CAO | 8.69 | WT% | WDXRF | |
| NA2O | 3.06 | WT% | WDXRF | |
| K2O | 2.42 | WT% | WDXRF | |
| P2O5 | 0.59 | WT% | WDXRF | |
| BA | 1286 | PPM | WDXRF | |
| CR | 152 | PPM | WDXRF | |
| CS | -1 | PPM | INAA | |
| HF | 5.7 | PPM | INAA | |
| NB | 43 | PPM | WDXRF | |
| NI | 130 | PPM | WDXRF | |
| RB | 55 | PPM | WDXRF | |
| SC | 20.7 | PPM | INAA | |
| SR | 625 | PPM | WDXRF | |
| TA | 2.65 | PPM | INAA | |
| TH | 5.2 | PPM | INAA | |
| U | 1.5 | PPM | INAA | |
| V | 183 | PPM | WDXRF | |
| Y | 24 | PPM | WDXRF | |
| ZN | 90 | PPM | WDXRF | |
| ZR | 95 | PPM | WDXRF | |
| LA | 45 | PPM | INAA | |
| CE | 90 | PPM | INAA | |
| ND | 37 | PPM | INAA | |
| SM | 7.4 | PPM | INAA | |
| EU | 2.17 | PPM | INAA | |
| GD | 6.1 | PPM | INAA | |
| TB | 0.86 | PPM | INAA | |
| YB | 1.5 | PPM | INAA | |
| LU | 0.22 | PPM | INAA | |
| ND143_ND144 | 0.512453 | TIMS | ||
| SR87_SR86 | 0.7046 | TIMS |
References
- Leat, P T; Thompson, R N; Morrison, M A; Hendry, G L; Dickin, A P (1991) Alkaline hybrid mafic magmas of the Yampa area, NW Colorado, and their relationship to the Yellowstone mantle plume and lithospheric mantle domains. Contributions to Mineralogy and Petrology. 107; 3, Pages 310-327. 1991. . doi:10.1007/BF00325101