Sample RMQa
NavDat sample number 36936 · BASALT
Sample
| Sample ID | RMQa |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Alkali basalt |
Location
| Latitude | 37.6083 |
|---|---|
| Longitude | -119.072 |
| 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 | 57.85 | WT% | XRF | |
| TIO2 | 1.54 | WT% | XRF | |
| AL2O3 | 17.42 | WT% | XRF | |
| FE2O3 | 7.4 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| MGO | 2.62 | WT% | XRF | |
| CAO | 5.29 | WT% | XRF | |
| NA2O | 4.92 | WT% | XRF | |
| K2O | 2.65 | WT% | XRF | |
| P2O5 | 0.64 | WT% | XRF | |
| LOI | 0.05 | WT% | XRF | |
| TOTAL | 100.45 | WT% | XRF | |
| BA | 1330 | PPM | XRF | |
| CR | 2 | PPM | XRF | |
| NB | 16 | PPM | XRF | |
| NI | 5 | PPM | ICPAES | |
| RB | 57 | PPM | XRF | |
| SR | 855 | PPM | XRF | |
| V | 102 | PPM | ICPAES | |
| Y | 24 | PPM | XRF | |
| ZR | 225 | PPM | XRF | |
| LA | 39.87 | PPM | ICPMS | |
| CE | 85.43 | PPM | ICPMS | |
| PR | 10.9 | PPM | ICPMS | |
| ND | 41.41 | PPM | ICPMS | |
| SM | 7.57 | PPM | ICPMS | |
| EU | 2.34 | PPM | ICPMS | |
| GD | 6.29 | PPM | ICPMS | |
| TB | 0.89 | PPM | ICPMS | |
| DY | 4.67 | PPM | ICPMS | |
| HO | 0.94 | PPM | ICPMS | |
| ER | 2.44 | PPM | ICPMS | |
| TM | 0.34 | PPM | ICPMS | |
| YB | 2.08 | PPM | ICPMS | |
| LU | 0.31 | PPM | ICPMS | |
| SC | 12.9 | PPM | ICPAES | |
| TH | 4.45 | PPM | ICPMS | |
| U | 1.55 | PPM | ICPMS | |
| BE | 1.88 | PPM | ICPAES | |
| CO | 15 | PPM | ICPAES | |
| CS | 0.83 | PPM | ICPMS | |
| HF | 5.25 | PPM | ICPMS | |
| TA | 0.93 | PPM | ICPMS | |
| SR87_SR86 | 0.70633 | TIMS | ||
| ND143_ND144 | 0.51253 | TIMS | ||
| PB208_PB204 | 38.99 | TIMS | ||
| PB207_PB204 | 15.71 | TIMS | ||
| PB206_PB204 | 19.24 | 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