Sample OBSB2
NavDat sample number 33994 · DACITE
Sample
| Sample ID | OBSB2 |
|---|---|
| Alternate ID | 7 |
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 35.18 |
|---|---|
| Longitude | -120.71 |
| State / province | California |
| Volcanic field | Santa Maria Province SMP volcanics |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 17.5 | 17 | 18 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 66.29 | WT% | XRF | |
| NA2O | 4.15 | WT% | XRF | |
| K2O | 2.41 | WT% | XRF | |
| MGO | 0.8 | WT% | XRF | |
| FE2O3 | 2.54 | WT% | XRF | |
| AL2O3 | 11.45 | WT% | XRF | |
| CAO | 1.06 | WT% | XRF | |
| MNO | 0.02 | WT% | XRF | |
| P2O5 | 0.11 | WT% | XRF | |
| TIO2 | 0.3 | WT% | XRF | |
| BA | 365 | PPM | ICPMS | |
| CE | 54.2 | PPM | ICPMS | |
| DY | 6.98 | PPM | ICPMS | |
| ER | 4.4 | PPM | ICPMS | |
| EU | 1.45 | PPM | ICPMS | |
| GD | 7.79 | PPM | ICPMS | |
| HF | 12.8 | PPM | ICPMS | |
| HO | 1.59 | PPM | ICPMS | |
| LA | 24.5 | PPM | ICPMS | |
| LU | 0.684 | PPM | ICPMS | |
| NB | 15.6 | PPM | ICPMS | |
| ND | 28.9 | PPM | ICPMS | |
| PR | 6.99 | PPM | ICPMS | |
| RB | 67.5 | PPM | ICPMS | |
| SC | 9.18 | PPM | ICPMS | |
| SM | 6.74 | PPM | ICPMS | |
| SR | 66.7 | PPM | ICPMS | |
| TA | 2.97 | PPM | ICPMS | |
| TB | 1.14 | PPM | ICPMS | |
| TH | 9.39 | PPM | ICPMS | |
| TI | 1450 | PPM | ICPMS | |
| TM | 0.677 | PPM | ICPMS | |
| U | 2.01 | PPM | ICPMS | |
| YB | 3.72 | PPM | ICPMS | |
| SR87_SR86 | 0.705386 | TIMS | ||
| RB87_SR86 | 2.929 | TIMS | ||
| ND143_ND144 | 0.512954 | TIMS | ||
| SM147_ND144 | 0.141 | TIMS |