Sample US78
NavDat sample number 21766 · BASALT
Sample
| Sample ID | US78 |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
Location
| Latitude | 39.9714 |
|---|---|
| Longitude | -107.246 |
| Location | Lower Flat Tops, Lower Series |
| State / province | Colorado |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 21.8 | 20.6 | 23 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 50.8 | WT% | XRF | |
| TIO2 | 1.47 | WT% | XRF | |
| AL2O3 | 15.24 | WT% | XRF | |
| FE2O3 | 11.82 | WT% | XRF | |
| MNO | 0.14 | WT% | XRF | |
| MGO | 6.89 | WT% | XRF | |
| CAO | 9.31 | WT% | XRF | |
| NA2O | 3.22 | WT% | XRF | |
| K2O | 0.91 | WT% | XRF | |
| P2O5 | 0.45 | WT% | XRF | |
| BA | 545 | PPM | XRF | |
| CR | 196 | PPM | XRF | |
| HF | 3.5 | PPM | INAA | |
| NB | 12 | PPM | XRF | |
| NI | 127 | PPM | XRF | |
| RB | 10 | PPM | XRF | |
| SC | 21 | PPM | INAA | |
| SR | 648 | PPM | XRF | |
| TA | 0.71 | PPM | INAA | |
| TH | 3 | PPM | INAA | |
| U | 0.51 | PPM | INAA | |
| V | 152 | PPM | XRF | |
| Y | 24 | PPM | XRF | |
| ZR | 116 | PPM | XRF | |
| LA | 31 | PPM | INAA | |
| CE | 64 | PPM | INAA | |
| ND | 35 | PPM | INAA | |
| SM | 6.6 | PPM | INAA | |
| EU | 1.93 | PPM | INAA | |
| TB | 0.91 | PPM | INAA | |
| YB | 1.3 | PPM | INAA | |
| LU | 0.22 | PPM | INAA | |
| SR87_SR86 | 0.704812 | MS | ||
| ND143_ND144 | 0.512384 | MS |
References
- Gibson, S A; Thompson, R N; Leat, P T; Morrison, M A; Hendry, G L; Dickin, A P (1991) The Flat Tops volcanic field; 1, Lower Miocene open-system, multisource magmatism at Flander, Trappers Lake. Journal of Geophysical Research, B, Solid Earth and Planets. 96; 8, Pages 13,609-13,627. 1991. . doi:10.1029/91JB00598