Sample TR281
NavDat sample number 11277 · ANDESITE
Sample
| Sample ID | TR281 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 39.3247 |
|---|---|
| Longitude | -120.217 |
| 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 | 55.32 | WT% | XRF | |
| TIO2 | 1.92 | WT% | XRF | |
| AL2O3 | 16.99 | WT% | XRF | |
| FEO | 6.62 | WT% | XRF | |
| MNO | 0.928 | WT% | XRF | |
| MGO | 3.96 | WT% | XRF | |
| CAO | 6.55 | WT% | XRF | |
| NA2O | 4.26 | WT% | INAA | |
| K2O | 3.07 | WT% | XRF | |
| P2O5 | 0.93 | WT% | XRF | |
| TOTAL | 100.92 | WT% | XRF | |
| V | 134 | PPM | INAA | |
| CR | 178 | PPM | INAA | |
| NI | 92 | PPM | XRF | |
| RB | 65 | PPM | XRF | |
| SR | 1170 | PPM | XRF | |
| Y | 27 | PPM | XRF | |
| ZR | 294 | PPM | XRF | |
| NB | 32 | PPM | XRF | |
| BA | 1540 | PPM | XRF | |
| CE | 98 | PPM | INAA | |
| SM | 9.1 | PPM | INAA | |
| EU | 1.82 | PPM | INAA | |
| TB | 0.97 | PPM | INAA | |
| DY | 3.8 | PPM | INAA | |
| U | 1.17 | PPM | INAA | |
| TH | 4.43 | PPM | INAA | |
| TA | 2.36 | PPM | INAA | |
| HF | 7.9 | PPM | INAA |