Sample SL38
NavDat sample number 17104 · ANDESITE
Sample
| Sample ID | SL38 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 28.0333 |
|---|---|
| Longitude | -104.833 |
| State / province | CHIHUAHUA |
| Formation | SCORBA |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 26 | 21 | 31 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 56.55 | WT% | XRF | |
| TIO2 | 1.64 | WT% | XRF | |
| AL2O3 | 16.35 | WT% | XRF | |
| FEO | 8.41 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| MGO | 4.09 | WT% | XRF | |
| CAO | 7.42 | WT% | XRF | |
| NA2O | 2.26 | WT% | XRF | |
| K2O | 2.44 | WT% | XRF | |
| P2O5 | 0.71 | WT% | XRF | |
| LOI | 1.83 | WT% | XRF | |
| TOTAL | 100.03 | WT% | XRF | |
| SR | 642 | PPM | XRF | |
| RB | 56 | PPM | XRF | |
| BA | 1069 | PPM | XRF | |
| TH | 4 | PPM | XRF | |
| NB | 22 | PPM | XRF | |
| ZR | 322 | PPM | XRF | |
| Y | 30 | PPM | XRF | |
| LA | 48.2 | PPM | MS-ID | |
| CE | 98 | PPM | MS-ID | |
| ND | 46.4 | PPM | MS-ID | |
| SM | 8.59 | PPM | MS-ID | |
| EU | 2.29 | PPM | MS-ID | |
| GD | 6.66 | PPM | MS-ID | |
| DY | 5.67 | PPM | MS-ID | |
| ER | 2.86 | PPM | MS-ID | |
| YB | 2.45 | PPM | MS-ID | |
| SR87_SR86 | 0.70465 | TIMS | ||
| SR87_SR86_INITIAL | 0.704559 | TIMS | ||
| ND143_ND144 | 0.512566 | TIMS | ||
| E_ND | -1.08 | TIMS | ||
| PB206_PB204 | 18.231 | TIMS | ||
| PB207_PB204 | 15.573 | TIMS | ||
| PB208_PB204 | 38.109 | TIMS |
References
- Cameron, K L; Nimz, G J; Kuentz, D; Niemeyer, S; Gunn, S (1989) Southern Cordilleran basaltic andesite suite, southern Chihuahua, Mexico; a link between Tertiary continental arc and flood basalt magmatism in North America. Journal of Geophysical Research, B, Solid Earth and Planets, vol.94, no.6, pp.7817-7840, 10 Jun 1989 doi:10.1029/JB094iB06p07817