Sample 86/6-42
NavDat sample number 41061 · DACITE
Sample
| Sample ID | 86/6-42 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 30 |
|---|---|
| Longitude | -107.33 |
| Location | San Buenaventura |
| State / province | Chihuahua |
| Country | MEXICO |
| Location comment | W Chihuahua |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 33 | 29.7 | 36.3 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 69.3 | WT% | XRF | |
| TIO2 | 0.52 | WT% | XRF | |
| AL2O3 | 14.3 | WT% | XRF | |
| FEO | 3.5 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| MGO | 0.31 | WT% | XRF | |
| CAO | 0.54 | WT% | XRF | |
| NA2O | 3.6 | WT% | XRF | |
| K2O | 5.7 | WT% | XRF | |
| P2O5 | 0.11 | WT% | XRF | |
| RB | 190 | PPM | XRF | |
| SR | 19 | PPM | XRF | |
| Y | 63 | PPM | XRF | |
| ZR | 402 | PPM | XRF | |
| NB | 32 | PPM | XRF | |
| CO | 10 | PPM | XRF | |
| LA | 120 | PPM | INAA | |
| CE | 242 | PPM | INAA | |
| SM | 15.6 | PPM | INAA | |
| EU | 3.17 | PPM | INAA | |
| TB | 2.37 | PPM | INAA | |
| DY | 8.85 | PPM | INAA | |
| YB | 5.62 | PPM | INAA | |
| SC | 9.6 | PPM | INAA | |
| CS | 3.79 | PPM | INAA | |
| HF | 11.4 | PPM | INAA | |
| BA | 206 | PPM | INAA | |
| TH | 26.1 | PPM | INAA | |
| SR87_SR86 | 0.707968 | MS | ||
| SR87_SR86 | 0.707 | MS | ||
| ND143_ND144 | 0.512444 | MS | ||
| PB206_PB204 | 18.767 | MS | ||
| PB207_PB204 | 15.595 | MS | ||
| PB208_PB204 | 38.67 | MS |
References
- Albrecht, Achim; Goldstein, Steven L (2000) Effects of basement composition and age on silicic magmas across an accreted terrane-Precambrian crust boundary, Sierra Madre Occidental, Mexico. Journal of South American Earth Sciences, vol.13, no.3, pp.255-273, Jul 2000 doi:10.1016/S0895-9811(00)00014-6