Sample LMQa-1
NavDat sample number 36942 · BASALT
Sample
| Sample ID | LMQa-1 |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Alkali basalt |
Location
| Latitude | 37.72 |
|---|---|
| Longitude | -118.958 |
| 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 | 51.83 | WT% | XRF | |
| TIO2 | 2.24 | WT% | XRF | |
| AL2O3 | 16.82 | WT% | XRF | |
| FE2O3 | 10.7 | WT% | XRF | |
| MNO | 0.15 | WT% | XRF | |
| MGO | 4.19 | WT% | XRF | |
| CAO | 7.43 | WT% | XRF | |
| NA2O | 4.29 | WT% | XRF | |
| K2O | 1.92 | WT% | XRF | |
| P2O5 | 0.65 | WT% | XRF | |
| LOI | 0.05 | WT% | XRF | |
| TOTAL | 100.22 | WT% | XRF | |
| BA | 1121 | PPM | XRF | |
| CR | 20 | PPM | XRF | |
| NB | 16 | PPM | XRF | |
| NI | 14 | PPM | ICPAES | |
| RB | 29 | PPM | XRF | |
| SR | 958 | PPM | XRF | |
| V | 240 | PPM | ICPAES | |
| Y | 29 | PPM | XRF | |
| ZR | 228 | PPM | XRF | |
| LA | 41.45 | PPM | ICPMS | |
| CE | 88.27 | PPM | ICPMS | |
| PR | 11.58 | PPM | ICPMS | |
| ND | 46.39 | PPM | ICPMS | |
| SM | 8.53 | PPM | ICPMS | |
| EU | 2.55 | PPM | ICPMS | |
| GD | 7.39 | PPM | ICPMS | |
| TB | 1.06 | PPM | ICPMS | |
| DY | 5.37 | PPM | ICPMS | |
| HO | 1.08 | PPM | ICPMS | |
| ER | 2.84 | PPM | ICPMS | |
| TM | 0.4 | PPM | ICPMS | |
| YB | 2.44 | PPM | ICPMS | |
| LU | 0.38 | PPM | ICPMS | |
| SC | 20.6 | PPM | ICPAES | |
| TH | 3.37 | PPM | ICPMS | |
| U | 0.92 | PPM | ICPMS | |
| BE | 1.75 | PPM | ICPAES | |
| CO | 31 | PPM | ICPAES | |
| CS | 0.43 | PPM | ICPMS | |
| HF | 5.35 | PPM | ICPMS | |
| TA | 0.9 | PPM | ICPMS | |
| SR87_SR86 | 0.7062 | TIMS | ||
| ND143_ND144 | 0.51243 | TIMS | ||
| PB208_PB204 | 39 | TIMS | ||
| PB207_PB204 | 15.71 | 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