Sample D85-64
NavDat sample number 18288 · TRACHYANDESITE
Sample
| Sample ID | D85-64 |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 39.2667 |
|---|---|
| Longitude | -120.367 |
| State / province | California |
| Volcanic field | Tahoe |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 7.4 | 6.66 | 8.14 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 58.17 | WT% | XRF | |
| TIO2 | 1.08 | WT% | XRF | |
| AL2O3 | 16.91 | WT% | XRF | |
| FE2O3 | 7.26 | WT% | XRF | |
| MNO | 0.16 | WT% | XRF | |
| MGO | 2.14 | WT% | XRF | |
| CAO | 4.98 | WT% | XRF | |
| NA2O | 4.4 | WT% | XRF | |
| K2O | 3.19 | WT% | XRF | |
| P2O5 | 0.53 | WT% | XRF | |
| TOTAL | 98.82 | WT% | XRF | |
| BA | 1226 | PPM | XRF | |
| CO | 13 | PPM | XRF | |
| CR | 5 | PPM | XRF | |
| CU | 45 | PPM | XRF | |
| NB | 12 | PPM | XRF | |
| NI | 3 | PPM | XRF | |
| PB | 23 | PPM | XRF | |
| RB | 96 | PPM | XRF | |
| SR | 526 | PPM | XRF | |
| V | 98 | PPM | XRF | |
| Y | 36 | PPM | XRF | |
| ZN | 103 | PPM | XRF | |
| ZR | 310 | PPM | XRF |