Sample US112
NavDat sample number 31447 · BASALT
Sample
| Sample ID | US112 |
|---|---|
| Rock name | BASALT |
| Rock type | PLUTONIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Dike in volcanic neck |
Location
| Latitude | 39.12 |
|---|---|
| Longitude | -106.88 |
| 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 | 48.6 | WT% | WDXRF | |
| MGO | 8.63 | WT% | WDXRF | |
| TIO2 | 1.81 | WT% | WDXRF | |
| AL2O3 | 14.78 | WT% | WDXRF | |
| FE2O3 | 9.55 | WT% | WDXRF | |
| MNO | 0.17 | WT% | WDXRF | |
| CAO | 9.88 | WT% | WDXRF | |
| NA2O | 3.62 | WT% | WDXRF | |
| K2O | 2 | WT% | WDXRF | |
| P2O5 | 0.83 | WT% | WDXRF | |
| BA | 2005 | PPM | WDXRF | |
| CR | 170 | PPM | WDXRF | |
| CS | 4 | PPM | INAA | |
| HF | 5.8 | PPM | INAA | |
| NB | 69 | PPM | WDXRF | |
| NI | 129 | PPM | WDXRF | |
| RB | 51 | PPM | WDXRF | |
| SC | 19.5 | PPM | INAA | |
| SR | 1280 | PPM | WDXRF | |
| TA | 4.5 | PPM | INAA | |
| TH | 7.2 | PPM | INAA | |
| U | 2 | PPM | INAA | |
| V | 199 | PPM | WDXRF | |
| Y | 30 | PPM | WDXRF | |
| ZN | 92 | PPM | WDXRF | |
| ZR | 270 | PPM | WDXRF | |
| LA | 71 | PPM | INAA | |
| CE | 142 | PPM | INAA | |
| ND | 63 | PPM | INAA | |
| SM | 9.9 | PPM | INAA | |
| EU | 2.66 | PPM | INAA | |
| TB | 1.12 | PPM | INAA | |
| YB | 2.08 | PPM | INAA | |
| LU | 0.27 | PPM | INAA |
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