Sample TR8B
NavDat sample number 11275 · ANDESITE
Sample
| Sample ID | TR8B |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 39.3315 |
|---|---|
| Longitude | -120.159 |
| 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 | 54.88 | WT% | XRF | |
| TIO2 | 1.69 | WT% | XRF | |
| AL2O3 | 16.41 | WT% | XRF | |
| FEO | 7.93 | WT% | XRF | |
| MNO | 0.1 | WT% | XRF | |
| MGO | 4.41 | WT% | XRF | |
| CAO | 7.5 | WT% | XRF | |
| NA2O | 3.72 | WT% | INAA | |
| K2O | 2.17 | WT% | XRF | |
| P2O5 | 0.72 | WT% | XRF | |
| TOTAL | 99.88 | WT% | XRF | |
| V | 157 | PPM | INAA | |
| CR | 223 | PPM | INAA | |
| NI | 8 | PPM | XRF | |
| RB | 51 | PPM | XRF | |
| SR | 1220 | PPM | XRF | |
| Y | 26 | PPM | XRF | |
| ZR | 231 | PPM | XRF | |
| NB | 21 | PPM | XRF | |
| BA | 1310 | PPM | XRF | |
| LA | 16 | PPM | XRF | |
| CE | 89 | PPM | INAA | |
| ND | 45 | PPM | INAA | |
| SM | 5.26 | PPM | INAA | |
| EU | 1.83 | PPM | INAA | |
| DY | 3 | PPM | INAA | |
| YB | 1.42 | PPM | INAA | |
| LU | 0.22 | PPM | INAA | |
| U | 1.33 | PPM | INAA | |
| TH | 6.17 | PPM | INAA | |
| TA | 1.29 | PPM | INAA | |
| HF | 5.67 | PPM | INAA |