Sample L82-87
NavDat sample number 18301 · TRACHYANDESITE
Sample
| Sample ID | L82-87 |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 39.1667 |
|---|---|
| Longitude | -118.767 |
| State / province | Nevada |
| Volcanic field | Churchill |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 13.8 | 11.2 | 16.4 | Middle Miocene |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 59.8 | WT% | XRF | |
| TIO2 | 0.73 | WT% | XRF | |
| AL2O3 | 17.79 | WT% | XRF | |
| FE2O3 | 6.3 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| MGO | 2.84 | WT% | XRF | |
| CAO | 5.9 | WT% | XRF | |
| NA2O | 4.24 | WT% | XRF | |
| K2O | 1.87 | WT% | XRF | |
| P2O5 | 0.25 | WT% | XRF | |
| TOTAL | 99.83 | WT% | XRF | |
| BA | 1110 | PPM | XRF | |
| CR | 21 | PPM | XRF | |
| CU | 18 | PPM | XRF | |
| NB | 5 | PPM | XRF | |
| NI | 5 | PPM | XRF | |
| PB | 16 | PPM | XRF | |
| RB | 38 | PPM | XRF | |
| SC | 14 | PPM | INAA | |
| SR | 769 | PPM | XRF | |
| V | 113 | PPM | XRF | |
| Y | 18 | PPM | XRF | |
| ZN | 77 | PPM | XRF | |
| ZR | 134 | PPM | XRF | |
| LA | 16 | PPM | INAA | |
| CE | 43 | PPM | INAA | |
| ND | 22 | PPM | INAA |