Sample SR-1
NavDat sample number 33087 · RHYOLITE
Sample
| Sample ID | SR-1 |
|---|---|
| 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 |
|---|---|---|---|---|---|
| 0.915 | 0.8235 | 1.0065 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 77.3 | WT% | XRF | |
| TIO2 | 0.08 | WT% | XRF | |
| AL2O3 | 12.6 | WT% | XRF | |
| FEO | 0.8 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| MGO | 0 | WT% | XRF | |
| CAO | 0.31 | WT% | XRF | |
| NA2O | 4.23 | WT% | XRF | |
| K2O | 4.65 | WT% | XRF | |
| P2O5 | 0.01 | WT% | XRF | |
| LOI | 0.43 | WT% | XRF | |
| TOTAL | 100.47 | WT% | XRF | |
| RB | 232 | PPM | XRF | |
| SR | 2.6 | PPM | XRF | |
| Y | 58.7 | PPM | XRF | |
| ZR | 121 | PPM | XRF | |
| NB | 74.1 | PPM | XRF | |
| MO | 6.8 | PPM | XRF | |
| BA | 10 | PPM | XRF | |
| PB | 33 | PPM | XRF | |
| SC | 1.4 | PPM | INAA | |
| CR | -0.7 | PPM | INAA | |
| ZN | 21 | PPM | INAA | |
| CS | 7.8 | PPM | INAA | |
| LA | 30.2 | PPM | INAA | |
| CE | 59.1 | PPM | INAA | |
| ND | 25 | PPM | INAA | |
| SM | 6.4 | PPM | INAA | |
| EU | 0.155 | PPM | INAA | |
| TB | 1.42 | PPM | INAA | |
| YB | 6.01 | PPM | INAA | |
| LU | 0.871 | PPM | INAA | |
| HF | 6.3 | PPM | INAA | |
| TA | 6.4 | PPM | INAA | |
| TH | 27.8 | PPM | INAA | |
| U | 9.5 | PPM | INAA | |
| SR87_SR86 | 0.71009 | TIMS | ||
| ND143_ND144 | 0.512404 | 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