Sample DCQgb-1
NavDat sample number 36938 · BASALT
Sample
| Sample ID | DCQgb-1 |
|---|---|
| Rock name | BASALT |
| Rock type | VOLCANIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Alkali basalt |
Location
| Latitude | 37.6983 |
|---|---|
| Longitude | -118.957 |
| 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 | 55.07 | WT% | XRF | |
| TIO2 | 1.26 | WT% | XRF | |
| AL2O3 | 17.85 | WT% | XRF | |
| FE2O3 | 7.85 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| MGO | 4.05 | WT% | XRF | |
| CAO | 7.04 | WT% | XRF | |
| NA2O | 4.13 | WT% | XRF | |
| K2O | 2.06 | WT% | XRF | |
| P2O5 | 0.44 | WT% | XRF | |
| LOI | 0.05 | WT% | XRF | |
| TOTAL | 99.87 | WT% | XRF | |
| BA | 1260 | PPM | XRF | |
| CR | 41 | PPM | XRF | |
| NB | 13 | PPM | XRF | |
| NI | 20 | PPM | ICPAES | |
| RB | 31 | PPM | XRF | |
| SR | 1048 | PPM | XRF | |
| V | 153 | PPM | ICPAES | |
| Y | 19 | PPM | XRF | |
| ZR | 183 | PPM | XRF | |
| LA | 32.93 | PPM | ICPMS | |
| CE | 70.07 | PPM | ICPMS | |
| PR | 8.88 | PPM | ICPMS | |
| ND | 33.74 | PPM | ICPMS | |
| SM | 5.95 | PPM | ICPMS | |
| EU | 1.84 | PPM | ICPMS | |
| GD | 4.83 | PPM | ICPMS | |
| TB | 0.68 | PPM | ICPMS | |
| DY | 3.47 | PPM | ICPMS | |
| HO | 0.67 | PPM | ICPMS | |
| ER | 1.78 | PPM | ICPMS | |
| TM | 0.24 | PPM | ICPMS | |
| YB | 1.53 | PPM | ICPMS | |
| LU | 0.24 | PPM | ICPMS | |
| SC | 15.5 | PPM | ICPAES | |
| TH | 3.2 | PPM | ICPMS | |
| U | 0.85 | PPM | ICPMS | |
| BE | 1.47 | PPM | ICPAES | |
| CO | 25 | PPM | ICPAES | |
| CS | 0.41 | PPM | ICPMS | |
| HF | 4.52 | PPM | ICPMS | |
| TA | 0.7 | PPM | ICPMS | |
| SR87_SR86 | 0.70623 | TIMS | ||
| ND143_ND144 | 0.51253 | TIMS | ||
| PB208_PB204 | 38.92 | TIMS | ||
| PB207_PB204 | 15.69 | TIMS | ||
| PB206_PB204 | 19.18 | 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