Sample Mar-92
NavDat sample number 11247 · ANDESITE
Sample
| Sample ID | Mar-92 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 39.3625 |
|---|---|
| Longitude | -120.082 |
| Location | Boca Ridge Formation Lavas |
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 2.8 | 2.52 | 3.08 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 52.74 | WT% | XRF | |
| TIO2 | 1.14 | WT% | XRF | |
| AL2O3 | 17.7 | WT% | XRF | |
| FEO | 8.2 | WT% | XRF | |
| MNO | 0.141 | WT% | XRF | |
| MGO | 6.9 | WT% | XRF | |
| CAO | 8.56 | WT% | XRF | |
| NA2O | 2.37 | WT% | XRF | |
| K2O | 1.79 | WT% | XRF | |
| P2O5 | 0.48 | WT% | XRF | |
| TOTAL | 99.9 | WT% | XRF | |
| V | 144 | PPM | XRF | |
| CR | 385 | PPM | XRF | |
| NI | 178 | PPM | XRF | |
| RB | 34 | PPM | XRF | |
| SR | 616 | PPM | XRF | |
| Y | 24 | PPM | XRF | |
| ZR | 176 | PPM | XRF | |
| NB | 13 | PPM | XRF | |
| BA | 976 | PPM | XRF | |
| LA | 24 | PPM | XRF | |
| CE | 56 | PPM | XRF |