Sample VC1-BB
NavDat sample number 33099 · RHYOLITE
Sample
| Sample ID | VC1-BB |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 35.8698 |
|---|---|
| Longitude | -106.57 |
| Location | Valles Caldera |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.2 | 0.18 | 0.22 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 74.2 | WT% | XRF | |
| TIO2 | 0.29 | WT% | XRF | |
| AL2O3 | 13.24 | WT% | XRF | |
| FEO | 1.82 | WT% | XRF | |
| MNO | 0.06 | WT% | XRF | |
| MGO | 0.67 | WT% | XRF | |
| CAO | 1.49 | WT% | XRF | |
| NA2O | 3.85 | WT% | XRF | |
| K2O | 4.36 | WT% | XRF | |
| P2O5 | 0.07 | WT% | XRF | |
| LOI | 0.85 | WT% | XRF | |
| TOTAL | 100.11 | WT% | XRF | |
| RB | 155 | PPM | XRF | |
| SR | 163.6 | PPM | XRF | |
| Y | 29.9 | PPM | XRF | |
| ZR | 135 | PPM | XRF | |
| NB | 38.3 | PPM | XRF | |
| MO | 3.6 | PPM | XRF | |
| BA | 520 | PPM | XRF | |
| PB | 21 | PPM | XRF | |
| SC | 3.7 | PPM | INAA | |
| CR | 7.8 | PPM | INAA | |
| ZN | 31 | PPM | INAA | |
| CS | 4.9 | PPM | INAA | |
| LA | 35.6 | PPM | INAA | |
| CE | 68 | PPM | INAA | |
| ND | 21 | PPM | INAA | |
| SM | 3.8 | PPM | INAA | |
| EU | 0.519 | PPM | INAA | |
| TB | 0.6 | PPM | INAA | |
| YB | 3.33 | PPM | INAA | |
| LU | 0.533 | PPM | INAA | |
| HF | 4.7 | PPM | INAA | |
| TA | 3.7 | PPM | INAA | |
| TH | 20.9 | PPM | INAA | |
| SR87_SR86 | 0.70464 | TIMS | ||
| ND143_ND144 | 0.512499 | TIMS |
References
- Spell, Terry L; Kyle, Philip R; Thirlwall, Matthew F; Campbell, AndrewR (1993) Isotopic and geochemical constraints on the origin and evolution ofpostcollapse rhyolites in the Valles Caldera, New Mexico. Journal of Geophysical Research, vol.98, no.B11, pp.19,723-19,739, 10Nov 1993 doi:10.1029/93JB01569