Sample L82-83A
NavDat sample number 18299 · TRACHYANDESITE
Sample
| Sample ID | L82-83A |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 39.3333 |
|---|---|
| Longitude | -119.183 |
| State / province | Nevada |
| Volcanic field | Churchill |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 8.25 | 5.3 | 11.2 | Late Miocene |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 58.69 | WT% | XRF | |
| TIO2 | 0.79 | WT% | XRF | |
| AL2O3 | 18.04 | WT% | XRF | |
| FE2O3 | 6.71 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| MGO | 3.26 | WT% | XRF | |
| CAO | 6.48 | WT% | XRF | |
| NA2O | 3.92 | WT% | XRF | |
| K2O | 1.71 | WT% | XRF | |
| P2O5 | 0.27 | WT% | XRF | |
| TOTAL | 99.99 | WT% | XRF | |
| BA | 809 | PPM | XRF | |
| CR | 32 | PPM | XRF | |
| CU | 26 | PPM | XRF | |
| NB | 6 | PPM | XRF | |
| NI | 12 | PPM | XRF | |
| PB | 12 | PPM | XRF | |
| RB | 24 | PPM | XRF | |
| SC | 14 | PPM | INAA | |
| SR | 828 | PPM | XRF | |
| V | 132 | PPM | XRF | |
| Y | 20 | PPM | XRF | |
| ZN | 83 | PPM | XRF | |
| ZR | 134 | PPM | XRF | |
| LA | 16 | PPM | INAA | |
| CE | 43 | PPM | INAA | |
| ND | 23 | PPM | INAA |