Sample SA-5
NavDat sample number 33094 · RHYOLITE
Sample
| Sample ID | SA-5 |
|---|---|
| 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 |
|---|---|---|---|---|---|
| 0.557 | 0.5013 | 0.6127 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 76.7 | WT% | XRF | |
| TIO2 | 0.16 | WT% | XRF | |
| AL2O3 | 12.91 | WT% | XRF | |
| FEO | 1.09 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| MGO | 0.27 | WT% | XRF | |
| CAO | 0.06 | WT% | XRF | |
| NA2O | 3.96 | WT% | XRF | |
| K2O | 4.79 | WT% | XRF | |
| P2O5 | 0.02 | WT% | XRF | |
| LOI | 0.29 | WT% | XRF | |
| TOTAL | 99.91 | WT% | XRF | |
| RB | 182 | PPM | XRF | |
| SR | 42.8 | PPM | XRF | |
| Y | 42.8 | PPM | XRF | |
| ZR | 130 | PPM | XRF | |
| NB | 50.4 | PPM | XRF | |
| MO | 3.5 | PPM | XRF | |
| BA | 218 | PPM | XRF | |
| PB | 24 | PPM | XRF | |
| SC | 2.6 | PPM | INAA | |
| CR | 1 | PPM | INAA | |
| ZN | 22 | PPM | INAA | |
| CS | 4.7 | PPM | INAA | |
| LA | 42 | PPM | INAA | |
| CE | 87.8 | PPM | INAA | |
| ND | 30 | PPM | INAA | |
| SM | 6.5 | PPM | INAA | |
| EU | 0.354 | PPM | INAA | |
| TB | 1.1 | PPM | INAA | |
| YB | 4.52 | PPM | INAA | |
| LU | 0.655 | PPM | INAA | |
| HF | 5.4 | PPM | INAA | |
| TA | 4.9 | PPM | INAA | |
| TH | 24.5 | PPM | INAA | |
| U | 6.8 | PPM | INAA | |
| SR87_SR86 | 0.7054 | TIMS | ||
| ND143_ND144 | 0.512423 | 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