Sample MSTba
NavDat sample number 36952 · BASALT
Sample
| Sample ID | MSTba |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
Location
| Latitude | 37.8 |
|---|---|
| Longitude | -118.838 |
| Location | Long Valley Caldera |
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 2.9 | 2.2 | 3.6 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 51.42 | WT% | XRF | |
| TIO2 | 1.3 | WT% | XRF | |
| AL2O3 | 15.29 | WT% | XRF | |
| FE2O3 | 8.49 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| MGO | 7.77 | WT% | XRF | |
| CAO | 7.59 | WT% | XRF | |
| NA2O | 2.95 | WT% | XRF | |
| K2O | 3.35 | WT% | XRF | |
| P2O5 | 0.69 | WT% | XRF | |
| LOI | 0.18 | WT% | XRF | |
| TOTAL | 98.98 | WT% | XRF | |
| BA | 2472 | PPM | XRF | |
| CR | 318 | PPM | XRF | |
| NB | 13 | PPM | XRF | |
| NI | 174 | PPM | ICPAES | |
| RB | 37 | PPM | XRF | |
| SR | 1566 | PPM | XRF | |
| V | 170 | PPM | ICPAES | |
| Y | 21 | PPM | XRF | |
| ZR | 265 | PPM | XRF | |
| LA | 43.02 | PPM | ICPMS | |
| CE | 90.37 | PPM | ICPMS | |
| PR | 11.87 | PPM | ICPMS | |
| ND | 45.98 | PPM | ICPMS | |
| SM | 8.02 | PPM | ICPMS | |
| EU | 2.47 | PPM | ICPMS | |
| GD | 6.29 | PPM | ICPMS | |
| TB | 0.82 | PPM | ICPMS | |
| DY | 3.92 | PPM | ICPMS | |
| HO | 0.75 | PPM | ICPMS | |
| ER | 1.91 | PPM | ICPMS | |
| TM | 0.27 | PPM | ICPMS | |
| YB | 1.61 | PPM | ICPMS | |
| LU | 0.27 | PPM | ICPMS | |
| SC | 17.3 | PPM | ICPAES | |
| TH | 3.81 | PPM | ICPMS | |
| U | 0.91 | PPM | ICPMS | |
| BE | 2.23 | PPM | ICPAES | |
| CO | 32 | PPM | ICPAES | |
| CS | 0.28 | PPM | ICPMS | |
| HF | 7.47 | PPM | ICPMS | |
| TA | 0.71 | PPM | ICPMS | |
| SR87_SR86 | 0.70613 | TIMS | ||
| ND143_ND144 | 0.51245 | TIMS | ||
| PB208_PB204 | 38.87 | TIMS | ||
| PB207_PB204 | 15.66 | TIMS | ||
| PB206_PB204 | 18.93 | 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