Sample SB.8.1
NavDat sample number 119318 · ANDESITE
Sample
| Sample ID | SB.8.1 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 28.6869 |
|---|---|
| Longitude | -113.438 |
| Location | SAN BORJA VOLCANIC FIELD |
| State / province | BAJA CALIFORNIA |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 13.5 | 0 | 65 |
Analyses
WHOLE ROCK
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 57.7 | WT% | XRF | |
| TIO2 | 1.05 | WT% | XRF | |
| AL2O3 | 16.4 | WT% | XRF | |
| FE2O3 | 0.95 | WT% | XRF | |
| FEO | 4.77 | WT% | XRF | |
| MNO | 0.1 | WT% | XRF | |
| MGO | 5.5 | WT% | XRF | |
| CAO | 6.86 | WT% | XRF | |
| NA2O | 3.9 | WT% | XRF | |
| K2O | 1.89 | WT% | XRF | |
| P2O5 | 0.43 | WT% | XRF | |
| LOI | 0.5 | WT% | XRF | |
| TOTAL | 100.05 | WT% | XRF | |
| NI | 52 | PPM | XRF | |
| CR | 179 | PPM | XRF | |
| V | 143 | PPM | XRF | |
| RB | 39 | PPM | XRF | |
| SR | 1261 | PPM | XRF | |
| BA | 1087 | PPM | XRF | |
| ZR | 223 | PPM | XRF | |
| Y | 20 | PPM | XRF | |
| NB | 8 | PPM | XRF | |
| TH | 7.41 | PPM | INAA | |
| TA | 0.41 | PPM | INAA | |
| HF | 5.27 | PPM | INAA | |
| LA | 33.5 | PPM | INAA | |
| CE | 64.1 | PPM | INAA | |
| ND | 35.9 | PPM | INAA | |
| SM | 6.17 | PPM | INAA | |
| EU | 1.74 | PPM | INAA | |
| GD | 6.43 | PPM | INAA | |
| TB | 0.6 | PPM | INAA | |
| TM | 0.25 | PPM | INAA | |
| YB | 1.67 | PPM | INAA | |
| LU | 0.24 | PPM | INAA | |
| ZN | 74 | PPM | INAA | |
| SR87_SR86 | 0.7038 | MS |
References
- Saunders, A D; Rogers, G; Marriner, G F; Terrell, D J; Verma, S P (1987) Geochemistry of Cenozoic volcanic rocks, Baja California, Mexico; implications for the petrogenesis of post-subduction magmas. Journal of Volcanology and Geothermal Research, vol.32, no.1-3, pp.223-245, Jun 1987 doi:10.1016/0377-0273(87)90046-1