Sample JLQa
NavDat sample number 36940 · BASALT
Sample
| Sample ID | JLQa |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Alkali basalt |
Location
| Latitude | 37.8267 |
|---|---|
| Longitude | -119.068 |
| 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 | 53.25 | WT% | XRF | |
| TIO2 | 1.49 | WT% | XRF | |
| AL2O3 | 18.1 | WT% | XRF | |
| FE2O3 | 8.55 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| MGO | 4.11 | WT% | XRF | |
| CAO | 8.4 | WT% | XRF | |
| NA2O | 3.75 | WT% | XRF | |
| K2O | 1.65 | WT% | XRF | |
| P2O5 | 0.41 | WT% | XRF | |
| LOI | 0.05 | WT% | XRF | |
| TOTAL | 99.83 | WT% | XRF | |
| BA | 857 | PPM | XRF | |
| CR | 45 | PPM | XRF | |
| NB | 12 | PPM | XRF | |
| NI | 18 | PPM | ICPAES | |
| RB | 30 | PPM | XRF | |
| SR | 997 | PPM | XRF | |
| V | 182 | PPM | ICPAES | |
| Y | 19 | PPM | XRF | |
| ZR | 168 | PPM | XRF | |
| LA | 25.38 | PPM | ICPMS | |
| CE | 54.63 | PPM | ICPMS | |
| PR | 6.94 | PPM | ICPMS | |
| ND | 26.48 | PPM | ICPMS | |
| SM | 4.93 | PPM | ICPMS | |
| EU | 1.65 | PPM | ICPMS | |
| GD | 4.43 | PPM | ICPMS | |
| TB | 0.65 | PPM | ICPMS | |
| DY | 3.43 | PPM | ICPMS | |
| HO | 0.68 | PPM | ICPMS | |
| ER | 1.8 | PPM | ICPMS | |
| TM | 0.26 | PPM | ICPMS | |
| YB | 1.55 | PPM | ICPMS | |
| LU | 0.25 | PPM | ICPMS | |
| SC | 19.5 | PPM | ICPAES | |
| TH | 2.59 | PPM | ICPMS | |
| U | 0.76 | PPM | ICPMS | |
| BE | 1.37 | PPM | ICPAES | |
| CO | 27 | PPM | ICPAES | |
| CS | 0.58 | PPM | ICPMS | |
| HF | 3.87 | PPM | ICPMS | |
| TA | 0.65 | PPM | ICPMS | |
| PB | 11.9 | PPM | MS-ID | |
| SR87_SR86 | 0.70616 | TIMS | ||
| ND143_ND144 | 0.51258 | TIMS | ||
| PB208_PB204 | 38.89 | TIMS | ||
| PB207_PB204 | 15.67 | TIMS | ||
| PB206_PB204 | 19.25 | 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