Sample DPQpb
NavDat sample number 36939 · BASALT
Sample
| Sample ID | DPQpb |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Alkali basalt |
Location
| Latitude | 37.6383 |
|---|---|
| Longitude | -119.078 |
| Location | Long Valley Caldera |
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.22 | 0.02 | 0.42 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 53.89 | WT% | XRF | |
| TIO2 | 1.73 | WT% | XRF | |
| AL2O3 | 18.1 | WT% | XRF | |
| FE2O3 | 8.32 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| MGO | 3.48 | WT% | XRF | |
| CAO | 7.42 | WT% | XRF | |
| NA2O | 4.09 | WT% | XRF | |
| K2O | 2.2 | WT% | XRF | |
| P2O5 | 0.58 | WT% | XRF | |
| LOI | 0.12 | WT% | XRF | |
| TOTAL | 99.94 | WT% | XRF | |
| BA | 1113 | PPM | XRF | |
| CR | 65 | PPM | XRF | |
| NB | 18 | PPM | XRF | |
| NI | 16 | PPM | ICPAES | |
| RB | 45 | PPM | XRF | |
| SR | 926 | PPM | XRF | |
| V | 172 | PPM | ICPAES | |
| Y | 26 | PPM | XRF | |
| ZR | 214 | PPM | XRF | |
| LA | 35.69 | PPM | ICPMS | |
| CE | 75.37 | PPM | ICPMS | |
| PR | 9.66 | PPM | ICPMS | |
| ND | 37.31 | PPM | ICPMS | |
| SM | 6.94 | PPM | ICPMS | |
| EU | 2.17 | PPM | ICPMS | |
| GD | 5.99 | PPM | ICPMS | |
| TB | 0.85 | PPM | ICPMS | |
| DY | 4.65 | PPM | ICPMS | |
| HO | 0.92 | PPM | ICPMS | |
| ER | 2.47 | PPM | ICPMS | |
| TM | 0.34 | PPM | ICPMS | |
| YB | 2.18 | PPM | ICPMS | |
| LU | 0.33 | PPM | ICPMS | |
| SC | 16.4 | PPM | ICPAES | |
| TH | 3.94 | PPM | ICPMS | |
| U | 1.3 | PPM | ICPMS | |
| BE | 1.67 | PPM | ICPAES | |
| CO | 21 | PPM | ICPAES | |
| CS | 1 | PPM | ICPMS | |
| HF | 5.06 | PPM | ICPMS | |
| TA | 1.06 | PPM | ICPMS | |
| SR87_SR86 | 0.70613 | TIMS | ||
| ND143_ND144 | 0.51259 | TIMS | ||
| PB208_PB204 | 38.89 | TIMS | ||
| PB207_PB204 | 15.68 | TIMS | ||
| PB206_PB204 | 19.17 | 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