Sample RDS53
NavDat sample number 36728 · DACITE
Sample
| Sample ID | RDS53 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | High Y dacite |
Location
| Latitude | 27.9 |
|---|---|
| Longitude | -104.267 |
| Location | La Olivina xenolith locality |
| State / province | CHIHUAHUA |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 31.8 | 29.6 | 34 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 62.9 | WT% | XRF | |
| TIO2 | 1.47 | WT% | XRF | |
| AL2O3 | 15.2 | WT% | XRF | |
| FEO | 6.59 | WT% | XRF | |
| MGO | 1.41 | WT% | XRF | |
| CAO | 3.81 | WT% | XRF | |
| NA2O | 4.2 | WT% | AAS | |
| K2O | 3.99 | WT% | XRF | |
| P2O5 | 0.47 | WT% | XRF | |
| LOI | 1.07 | WT% | XRF | |
| TOTAL | 98.61 | WT% | XRF | |
| RB | 120 | PPM | XRF | |
| SR | 373 | PPM | XRF | |
| BA | 1048 | PPM | XRF | |
| LA | 63 | PPM | XRF | |
| NB | 36 | PPM | XRF | |
| ZR | 490 | PPM | XRF | |
| Y | 49 | PPM | XRF | |
| NI | 4 | PPM | XRF | |
| SC | 11 | PPM | XRF | |
| PB | 19.6 | PPM | ICPMS | |
| TH | 12.3 | PPM | ICPMS | |
| U | 4.1 | PPM | ICPMS | |
| CE | 125.8 | PPM | MS-ID | |
| ND | 56 | PPM | MS-ID | |
| SM | 10.99 | PPM | MS-ID | |
| EU | 2.83 | PPM | MS-ID | |
| GD | 9.83 | PPM | MS-ID | |
| DY | 8.47 | PPM | MS-ID | |
| ER | 4.75 | PPM | MS-ID | |
| YB | 4.4 | PPM | MS-ID | |
| SR87_SR86 | 0.70634 | MS | ||
| SR87_SR86_INITIAL | 0.705926 | MS | ||
| ND143_ND144 | 0.512561 | MS | ||
| PB206_PB204 | 18.53 | MS | ||
| PB207_PB204 | 15.62 | MS | ||
| PB208_PB204 | 38.23 | MS |
References
- McDowell, Fred W; Mauger, Richard L (1994) K-Ar and U-Pb zircon chronology of Late Cretaceous and Tertiary magmatism in central Chihuahua State, Mexico; with Suppl. Data 9403. Geological Society of America Bulletin, vol.106, no.1, pp.118-132, Jan 1994 doi:10.1130/0016-7606(1994)106<0118:KAAUPZ>2.3.CO;2