Sample TBQob-2
NavDat sample number 36930 · BASALT
Sample
| Sample ID | TBQob-2 |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Alkali basalt |
Location
| Latitude | 37.6192 |
|---|---|
| Longitude | -119.092 |
| Location | Long Valley Caldera |
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.9 | 0.8 | 1 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 45.89 | WT% | XRF | |
| TIO2 | 1.73 | WT% | XRF | |
| AL2O3 | 14.5 | WT% | XRF | |
| FE2O3 | 11.3 | WT% | XRF | |
| MNO | 0.16 | WT% | XRF | |
| MGO | 9.94 | WT% | XRF | |
| CAO | 9.49 | WT% | XRF | |
| NA2O | 2.95 | WT% | XRF | |
| K2O | 0.85 | WT% | XRF | |
| P2O5 | 0.78 | WT% | XRF | |
| LOI | 2.35 | WT% | XRF | |
| TOTAL | 97.59 | WT% | XRF | |
| BA | 1145 | PPM | XRF | |
| CR | 317 | PPM | XRF | |
| NB | 18 | PPM | XRF | |
| NI | 185 | PPM | ICPAES | |
| RB | 34 | PPM | XRF | |
| SR | 1311 | PPM | XRF | |
| V | 205 | PPM | ICPAES | |
| Y | 23 | PPM | XRF | |
| ZR | 193 | PPM | XRF | |
| LA | 50.3 | PPM | ICPMS | |
| CE | 109.68 | PPM | ICPMS | |
| PR | 13.88 | PPM | ICPMS | |
| ND | 50.51 | PPM | ICPMS | |
| SM | 8.89 | PPM | ICPMS | |
| EU | 2.47 | PPM | ICPMS | |
| GD | 6.82 | PPM | ICPMS | |
| TB | 0.94 | PPM | ICPMS | |
| DY | 4.48 | PPM | ICPMS | |
| HO | 0.87 | PPM | ICPMS | |
| ER | 2.17 | PPM | ICPMS | |
| TM | 0.32 | PPM | ICPMS | |
| YB | 1.95 | PPM | ICPMS | |
| LU | 0.31 | PPM | ICPMS | |
| SC | 21.3 | PPM | ICPAES | |
| TH | 5.08 | PPM | ICPMS | |
| U | 1.32 | PPM | ICPMS | |
| BE | 1.62 | PPM | ICPAES | |
| CO | 42 | PPM | ICPAES | |
| CS | 0.63 | PPM | ICPMS | |
| HF | 4.5 | PPM | ICPMS | |
| TA | 0.96 | PPM | ICPMS | |
| SR87_SR86 | 0.7064 | TIMS | ||
| ND143_ND144 | 0.51239 | TIMS | ||
| PB208_PB204 | 38.71 | TIMS | ||
| PB207_PB204 | 15.6 | TIMS | ||
| PB206_PB204 | 18.9 | TIMS |
References
- Cousens, Brian L (1996) Magmatic evolution of Quaternary mafic magmas at Long Valley Calderaand the Devils Postpile, California; effects of crustal contaminationon lithospheric mantle-derived magmas. Journal of Geophysical Research, vol.101, no.B12, pp.27,673-27,689, 10Dec 1996 doi:10.1029/96JB02093