Sample DA-1
NavDat sample number 33084 · RHYOLITE
Sample
| Sample ID | DA-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 |
|---|---|---|---|---|---|
| 0.973 | 0.8757 | 1.0703 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 77.2 | WT% | XRF | |
| TIO2 | 0.09 | WT% | XRF | |
| AL2O3 | 12.35 | WT% | XRF | |
| FEO | 0.8 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| MGO | 0.39 | WT% | XRF | |
| CAO | 0.3 | WT% | XRF | |
| NA2O | 4.08 | WT% | XRF | |
| K2O | 4.69 | WT% | XRF | |
| P2O5 | 0.01 | WT% | XRF | |
| LOI | 0.11 | WT% | XRF | |
| TOTAL | 100.39 | WT% | XRF | |
| RB | 199 | PPM | XRF | |
| SR | 7.9 | PPM | XRF | |
| Y | 51.7 | PPM | XRF | |
| ZR | 113 | PPM | XRF | |
| NB | 54.2 | PPM | XRF | |
| MO | 3.3 | PPM | XRF | |
| BA | 31 | PPM | XRF | |
| PB | 24 | PPM | XRF | |
| SC | 1.4 | PPM | INAA | |
| CR | -0.6 | PPM | INAA | |
| ZN | 11 | PPM | INAA | |
| CS | 4.6 | PPM | INAA | |
| LA | 36.5 | PPM | INAA | |
| CE | 66.5 | PPM | INAA | |
| ND | 23 | PPM | INAA | |
| SM | 6.2 | PPM | INAA | |
| EU | 0.233 | PPM | INAA | |
| TB | 1.22 | PPM | INAA | |
| YB | 5.26 | PPM | INAA | |
| LU | 0.786 | PPM | INAA | |
| HF | 6 | PPM | INAA | |
| TA | 5.2 | PPM | INAA | |
| TH | 23.1 | PPM | INAA | |
| U | 7 | PPM | INAA | |
| SR87_SR86 | 0.70707 | 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