Sample L82-90
NavDat sample number 18304 · TRACHYANDESITE
Sample
| Sample ID | L82-90 |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 38.3333 |
|---|---|
| Longitude | -118.933 |
| 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 | 59.87 | WT% | XRF | |
| TIO2 | 0.86 | WT% | XRF | |
| AL2O3 | 16.74 | WT% | XRF | |
| FE2O3 | 6.19 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| MGO | 2.95 | WT% | XRF | |
| CAO | 5.06 | WT% | XRF | |
| NA2O | 4.05 | WT% | XRF | |
| K2O | 3.24 | WT% | XRF | |
| P2O5 | 0.49 | WT% | XRF | |
| TOTAL | 99.56 | WT% | XRF | |
| BA | 1605 | PPM | XRF | |
| CR | 55 | PPM | XRF | |
| CU | 23 | PPM | XRF | |
| NB | 19 | PPM | XRF | |
| NI | 21 | PPM | XRF | |
| PB | 21 | PPM | XRF | |
| RB | 53 | PPM | XRF | |
| SC | 12 | PPM | INAA | |
| SR | 737 | PPM | XRF | |
| V | 105 | PPM | XRF | |
| Y | 25 | PPM | XRF | |
| ZN | 92 | PPM | XRF | |
| ZR | 383 | PPM | XRF | |
| LA | 54 | PPM | INAA | |
| CE | 110 | PPM | INAA | |
| ND | 46 | PPM | INAA |