Sample Mar-74
NavDat sample number 11272 · ANDESITE
Sample
| Sample ID | Mar-74 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 39.3713 |
|---|---|
| Longitude | -120.083 |
| 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 | 53.14 | WT% | XRF | |
| TIO2 | 1.18 | WT% | XRF | |
| AL2O3 | 16.77 | WT% | XRF | |
| FEO | 8.11 | WT% | XRF | |
| MNO | 0.135 | WT% | XRF | |
| MGO | 6.48 | WT% | XRF | |
| CAO | 8.81 | WT% | XRF | |
| NA2O | 3.1 | WT% | XRF | |
| K2O | 1.91 | WT% | XRF | |
| P2O5 | 0.47 | WT% | XRF | |
| TOTAL | 100.38 | WT% | XRF | |
| V | 193 | PPM | INAA | |
| CR | 560 | PPM | INAA | |
| NI | 191 | PPM | XRF | |
| RB | 40 | PPM | XRF | |
| SR | 633 | PPM | XRF | |
| Y | 22 | PPM | XRF | |
| ZR | 180 | PPM | XRF | |
| NB | 14 | PPM | XRF | |
| BA | 789 | PPM | XRF | |
| LA | 29 | PPM | XRF | |
| CE | 68 | PPM | XRF | |
| SM | 4.97 | PPM | INAA | |
| EU | 1.33 | PPM | INAA | |
| TB | 0.47 | PPM | INAA | |
| DY | 2.9 | PPM | INAA | |
| YB | 2.4 | PPM | INAA | |
| U | 1.46 | PPM | INAA | |
| TH | 3 | PPM | INAA | |
| TA | 1.63 | PPM | INAA | |
| HF | 4.3 | PPM | INAA |