Sample D85-187A
NavDat sample number 18378 · TRACHYANDESITE
Sample
| Sample ID | D85-187A |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 38.3 |
|---|---|
| Longitude | -118.917 |
| State / province | Nevada |
| Volcanic field | Aurora |
| Location comment | Aurora |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.3 | 0.27 | 0.33 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 59.02 | WT% | XRF | |
| TIO2 | 0.87 | WT% | XRF | |
| AL2O3 | 16.78 | WT% | XRF | |
| FE2O3 | 6.11 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| MGO | 2.82 | WT% | XRF | |
| CAO | 5.15 | WT% | XRF | |
| NA2O | 4.2 | WT% | XRF | |
| K2O | 3.3 | WT% | XRF | |
| P2O5 | 0.51 | WT% | XRF | |
| TOTAL | 98.87 | WT% | XRF | |
| BA | 1475 | PPM | XRF | |
| CO | 13 | PPM | XRF | |
| CR | 39 | PPM | XRF | |
| CU | 30 | PPM | XRF | |
| NB | 18 | PPM | XRF | |
| NI | 20 | PPM | XRF | |
| PB | 21 | PPM | XRF | |
| RB | 50 | PPM | XRF | |
| SR | 761 | PPM | XRF | |
| V | 111 | PPM | XRF | |
| Y | 24 | PPM | XRF | |
| ZN | 93 | PPM | XRF | |
| ZR | 384 | PPM | XRF |