Sample D85-198
NavDat sample number 18385 · TRACHYANDESITE
Sample
| Sample ID | D85-198 |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 37.7 |
|---|---|
| Longitude | -118.633 |
| State / province | California |
| Volcanic field | Long Valley |
| Location comment | Casa Diablo Mtn. |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 3.55 | 1.8 | 5.3 | Pliocene |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 57.68 | WT% | XRF | |
| TIO2 | 1.07 | WT% | XRF | |
| AL2O3 | 18.13 | WT% | XRF | |
| FE2O3 | 6.33 | WT% | XRF | |
| MNO | 0.1 | WT% | XRF | |
| MGO | 3.22 | WT% | XRF | |
| CAO | 5.83 | WT% | XRF | |
| NA2O | 4.46 | WT% | XRF | |
| K2O | 2.87 | WT% | XRF | |
| P2O5 | 0.4 | WT% | XRF | |
| TOTAL | 100.09 | WT% | XRF | |
| BA | 1320 | PPM | XRF | |
| CO | 24 | PPM | XRF | |
| CR | 20 | PPM | XRF | |
| CU | 38 | PPM | XRF | |
| NB | 10 | PPM | XRF | |
| NI | 38 | PPM | XRF | |
| PB | 14 | PPM | XRF | |
| RB | 41 | PPM | XRF | |
| SR | 1050 | PPM | XRF | |
| V | 132 | PPM | XRF | |
| Y | 20 | PPM | XRF | |
| ZN | 74 | PPM | XRF | |
| ZR | 167 | PPM | XRF |