Sample RT220A
NavDat sample number 37132 · RHYOLITE
Sample
| Sample ID | RT220A |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 43.5 |
|---|---|
| Longitude | -120.5 |
| State / province | OREGON |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 7.05 | 6.345 | 7.755 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 77.06 | WT% | XRF | |
| TIO2 | 0.12 | WT% | XRF | |
| AL2O3 | 11.82 | WT% | XRF | |
| FE2O3 | 1.39 | WT% | XRF | |
| MNO | 0.1 | WT% | XRF | |
| MGO | 0.08 | WT% | XRF | |
| CAO | 0.26 | WT% | XRF | |
| NA2O | 3.72 | WT% | XRF | |
| K2O | 5.4 | WT% | XRF | |
| P2O5 | 0.05 | WT% | XRF | |
| RB | 94 | PPM | XRF | |
| BA | 115 | PPM | XRF | |
| SR | 12 | PPM | XRF | |
| ZR | 258 | PPM | XRF | |
| NB | 32.1 | PPM | XRF | |
| Y | 89 | PPM | XRF | |
| PB | 19 | PPM | XRF | |
| ZN | 101 | PPM | XRF | |
| GA | 21 | PPM | XRF | |
| CU | 7 | PPM | XRF | |
| NI | 14 | PPM | XRF | |
| CR | 2 | PPM | XRF | |
| CS | 3.18 | PPM | INAA | |
| U | 3.63 | PPM | INAA | |
| TH | 7.84 | PPM | INAA | |
| HF | 9.68 | PPM | INAA | |
| TA | 1.71 | PPM | INAA | |
| SB | 1.39 | PPM | INAA | |
| ARSENIC | 4.5 | PPM | INAA | |
| SC | 3.77 | PPM | INAA | |
| CO | 0.14 | PPM | INAA | |
| LA | 38.7 | PPM | INAA | |
| CE | 99 | PPM | INAA | |
| ND | 50 | PPM | INAA | |
| SM | 13.45 | PPM | INAA | |
| EU | 1.21 | PPM | INAA | |
| TB | 2.64 | PPM | INAA | |
| YB | 9.61 | PPM | INAA | |
| LU | 1.37 | PPM | INAA |