Sample MLQab
NavDat sample number 36945 · BASALT
Sample
| Sample ID | MLQab |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Alkali basalt |
Location
| Latitude | 37.6383 |
|---|---|
| Longitude | -118.938 |
| 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 | 51.32 | WT% | XRF | |
| TIO2 | 1.92 | WT% | XRF | |
| AL2O3 | 17.08 | WT% | XRF | |
| FE2O3 | 10.26 | WT% | XRF | |
| MNO | 0.15 | WT% | XRF | |
| MGO | 4.7 | WT% | XRF | |
| CAO | 7.82 | WT% | XRF | |
| NA2O | 4.07 | WT% | XRF | |
| K2O | 1.79 | WT% | XRF | |
| P2O5 | 0.57 | WT% | XRF | |
| LOI | 0.32 | WT% | XRF | |
| TOTAL | 99.68 | WT% | XRF | |
| BA | 992 | PPM | XRF | |
| CR | 32 | PPM | XRF | |
| NB | 16 | PPM | XRF | |
| NI | 26 | PPM | ICPAES | |
| RB | 28 | PPM | XRF | |
| SR | 942 | PPM | XRF | |
| V | 186 | PPM | ICPAES | |
| Y | 29 | PPM | XRF | |
| ZR | 241 | PPM | XRF | |
| LA | 38.28 | PPM | ICPMS | |
| CE | 84 | PPM | ICPMS | |
| PR | 10.87 | PPM | ICPMS | |
| ND | 42.19 | PPM | ICPMS | |
| SM | 7.94 | PPM | ICPMS | |
| EU | 2.35 | PPM | ICPMS | |
| GD | 6.68 | PPM | ICPMS | |
| TB | 0.94 | PPM | ICPMS | |
| DY | 5 | PPM | ICPMS | |
| HO | 1.01 | PPM | ICPMS | |
| ER | 2.63 | PPM | ICPMS | |
| TM | 0.37 | PPM | ICPMS | |
| YB | 2.3 | PPM | ICPMS | |
| LU | 0.36 | PPM | ICPMS | |
| SC | 19.4 | PPM | ICPAES | |
| TH | 3.14 | PPM | ICPMS | |
| U | 0.87 | PPM | ICPMS | |
| BE | 1.82 | PPM | ICPAES | |
| CO | 32 | PPM | ICPAES | |
| CS | 0.32 | PPM | ICPMS | |
| HF | 5.49 | PPM | ICPMS | |
| TA | 0.91 | PPM | ICPMS | |
| SR87_SR86 | 0.7062 | TIMS | ||
| ND143_ND144 | 0.5125 | TIMS | ||
| PB208_PB204 | 38.98 | TIMS | ||
| PB207_PB204 | 15.7 | TIMS | ||
| PB206_PB204 | 19.27 | 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