Sample L82-91
NavDat sample number 18305 · TRACHYANDESITE
Sample
| Sample ID | L82-91 |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 38.2833 |
|---|---|
| Longitude | -118.917 |
| State / province | Nevada |
| Volcanic field | Aurora |
| Location comment | Aurora |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.25 | 0.225 | 0.275 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 57.9 | WT% | XRF | |
| TIO2 | 0.99 | WT% | XRF | |
| AL2O3 | 17.13 | WT% | XRF | |
| FE2O3 | 6.9 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| MGO | 3.36 | WT% | XRF | |
| CAO | 5.68 | WT% | XRF | |
| NA2O | 3.92 | WT% | XRF | |
| K2O | 3.15 | WT% | XRF | |
| P2O5 | 0.49 | WT% | XRF | |
| TOTAL | 99.64 | WT% | XRF | |
| BA | 1430 | PPM | XRF | |
| CR | 52 | PPM | XRF | |
| CU | 28 | PPM | XRF | |
| NB | 16 | PPM | XRF | |
| NI | 23 | PPM | XRF | |
| PB | 16 | PPM | XRF | |
| RB | 43 | PPM | XRF | |
| SC | 13 | PPM | INAA | |
| SR | 846 | PPM | XRF | |
| V | 139 | PPM | XRF | |
| Y | 24 | PPM | XRF | |
| ZN | 91 | PPM | XRF | |
| ZR | 325 | PPM | XRF | |
| LA | 48 | PPM | INAA | |
| CE | 98 | PPM | INAA | |
| ND | 43 | PPM | INAA |