Sample U-4
NavDat sample number 7580 · ANDESITE
Sample
| Sample ID | U-4 |
|---|---|
| Alternate ID | SLb-96-A6 |
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Lockwood, unpublished |
Location
| Latitude | 37.21 |
|---|---|
| Longitude | -119.265 |
| State / province | California |
| Volcanic field | Lower San Joaquin |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 9.8 | 7.1 | 9.5 | Cenozoic |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 57.7 | WT% | XRF | |
| AL2O3 | 13 | WT% | XRF | |
| FE2O3 | 2.3 | WT% | XRF | |
| FEO | 3.3 | WT% | TIT | |
| MGO | 8.5 | WT% | XRF | |
| CAO | 5.1 | WT% | XRF | |
| NA2O | 3.2 | WT% | XRF | |
| K2O | 2.4 | WT% | XRF | |
| H2O_PLUS | 0.7 | WT% | TIT | |
| H2O_MINUS | 1.6 | WT% | TIT | |
| TIO2 | 0.66 | WT% | XRF | |
| P2O5 | 0.35 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| CO2 | 0.09 | WT% | UNKNOWN | |
| RB | 96 | PPM | SPEC | |
| SR | 470 | PPM | SPEC | |
| BA | 1150 | PPM | SPEC | |
| SC | 22 | PPM | SPEC | |
| Y | 20 | PPM | SPEC | |
| ZR | 120 | PPM | SPEC | |
| V | 80 | PPM | SPEC | |
| CR | 710 | PPM | SPEC | |
| NI | 240 | PPM | SPEC |