Sample A-2
NavDat sample number 7500 · ANDESITE
Sample
| Sample ID | A-2 |
|---|---|
| Alternate ID | FD-80 |
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Dodge & Moore |
Location
| Latitude | 37.8167 |
|---|---|
| Longitude | -120.653 |
| State / province | California |
| Volcanic field | North of Yosemite |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 32.5 | 0 | 65 | Cenozoic |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 56.49 | WT% | XRF | |
| AL2O3 | 16.8 | WT% | XRF | |
| FE2O3 | 3.73 | WT% | XRF | |
| FEO | 2.85 | WT% | TIT | |
| MGO | 3.36 | WT% | XRF | |
| CAO | 6.17 | WT% | XRF | |
| NA2O | 3.78 | WT% | XRF | |
| K2O | 3.44 | WT% | XRF | |
| H2O_PLUS | 0.89 | WT% | TIT | |
| H2O_MINUS | 0.98 | WT% | TIT | |
| TIO2 | 1.06 | WT% | XRF | |
| P2O5 | 0.4 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| CO2 | 0.04 | WT% | UNKNOWN | |
| RB | 131 | PPM | XRF | |
| SR | 840 | PPM | XRF | |
| BA | 1250 | PPM | XRF | |
| SC | 18 | PPM | XRF | |
| Y | 25 | PPM | XRF | |
| V | 163 | PPM | XRF | |
| NI | 43 | PPM | XRF |