Sample 1
NavDat sample number 4631 · ANDESITE
Sample
| Sample ID | 1 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | porphyritic with pilotaxitic groundmass |
Location
| Latitude | 39.208 |
|---|---|
| Longitude | -121.845 |
| Location | 1 mile W of summit of South Butte |
| State / province | California |
| Volcanic field | Sutter Buttes |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 1.75 | 1.5 | 2 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 55.42 | WT% | XRF | |
| TIO2 | 0.32 | WT% | XRF | |
| AL2O3 | 19.47 | WT% | XRF | |
| FEO | 2.5 | WT% | XRF | |
| FE2O3 | 3.43 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| CAO | 6.96 | WT% | XRF | |
| MGO | 5.59 | WT% | XRF | |
| NA2O | 2.95 | WT% | XRF | |
| K2O | 1.88 | WT% | XRF | |
| P2O5 | 0.33 | WT% | XRF | |
| H2O_MINUS | 0.75 | WT% | XRF | |
| H2O_PLUS | 0.4 | WT% | XRF | |
| TOTAL | 100.13 | WT% | XRF | |
| NB | 10 | PPM | XRF | |
| ZR | 125 | PPM | XRF | |
| Y | 20 | PPM | XRF | |
| SR | 765 | PPM | XRF | |
| RB | 75 | PPM | XRF | |
| TH | -5 | PPM | XRF | |
| PB | 10 | PPM | XRF | |
| GA | 25 | PPM | XRF | |
| ZN | 60 | PPM | XRF | |
| CU | 15 | PPM | XRF | |
| NI | 100 | PPM | XRF | |
| V | 110 | PPM | XRF | |
| CR | 260 | PPM | XRF | |
| BA | 1135 | PPM | XRF | |
| CE | 50 | PPM | XRF | |
| ND | 20 | PPM | XRF | |
| PR | 5 | PPM | XRF | |
| LA | 15 | PPM | XRF | |
| CL | 120 | PPM | XRF | |
| S | 30 | PPM | XRF |