Sample OPG-519
NavDat sample number 93226 · ANDESITE
Sample
| Sample ID | OPG-519 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Church and Barakso |
| Comment | Massive lava flow with plagioclase phenocrysts |
Location
| Latitude | 54.0542 |
|---|---|
| Longitude | -125.958 |
| State / province | British Columbia |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 52 | 46.8 | 57.2 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 57.03 | WT% | XRF | |
| TIO2 | 1.15 | WT% | XRF | |
| AL2O3 | 16.73 | WT% | XRF | |
| FE2O3T | 6.24 | WT% | XRF | |
| MNO | 0.09 | WT% | XRF | |
| MGO | 3.18 | WT% | XRF | |
| CAO | 5.83 | WT% | XRF | |
| NA2O | 4.07 | WT% | XRF | |
| K2O | 3.15 | WT% | XRF | |
| P2O5 | 0.54 | WT% | XRF | |
| LOI | 1.2 | WT% | XRF | |
| CR | 65 | PPM | XRF | |
| NI | 38 | PPM | XRF | |
| CO | 15 | PPM | XRF | |
| V | 135 | PPM | XRF | |
| ZN | 92 | PPM | XRF | |
| RB | 81 | PPM | XRF | |
| BA | 1792 | PPM | XRF | |
| SR | 1158 | PPM | XRF | |
| GA | 20 | PPM | XRF | |
| NB | 18 | PPM | ICPMS | |
| ZR | 259 | PPM | ICPMS | |
| Y | 31 | PPM | ICPMS | |
| TH | 12 | PPM | ICPMS | |
| CE | 131 | PPM | ICPMS |
References
- Dostal, Jarda; Church, B N; Reynolds, Peter H; Hopkinson, L (2001) Eocene volcanism in the Buck Creek basin, central British Columbia(Canada); transition from arc to extensional volcanism. Journal of Volcanology and Geothermal Research, vol.107, no.1-3,pp.149-170, Jun 2001 doi:10.1016/S0377-0273(00)00261-4