Sample 89/1-4
NavDat sample number 41079 · DACITE
Sample
| Sample ID | 89/1-4 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 27.5 |
|---|---|
| Longitude | -107.83 |
| Location | El Divisadero |
| State / province | Chihuahua |
| Country | MEXICO |
| Location comment | W Chihuahua |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 20 | 18 | 22 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 60.5 | WT% | XRF | |
| TIO2 | 0.73 | WT% | XRF | |
| AL2O3 | 16.1 | WT% | XRF | |
| FEO | 6.1 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| MGO | 3.27 | WT% | XRF | |
| CAO | 5.59 | WT% | XRF | |
| NA2O | 3.9 | WT% | XRF | |
| K2O | 2.2 | WT% | XRF | |
| P2O5 | 0.15 | WT% | XRF | |
| RB | 68.3 | PPM | XRF | |
| SR | 542 | PPM | XRF | |
| ZR | 72 | PPM | XRF | |
| NB | 11 | PPM | XRF | |
| CO | 20 | PPM | XRF | |
| LA | 20.1 | PPM | INAA | |
| CE | 38.3 | PPM | INAA | |
| ND | 16.5 | PPM | INAA | |
| SM | 3.4 | PPM | INAA | |
| EU | 0.91 | PPM | INAA | |
| TB | 0.44 | PPM | INAA | |
| YB | 1.53 | PPM | INAA | |
| LU | 0.24 | PPM | INAA | |
| SC | 14.2 | PPM | INAA | |
| CS | 14.3 | PPM | INAA | |
| HF | 3.2 | PPM | INAA | |
| BA | 659 | PPM | INAA | |
| TH | 7.3 | PPM | INAA | |
| U | 1.9 | PPM | INAA |
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